Patent Publication Number: US-2023143843-A1

Title: Compact spiraled slot antenna

Description:
FIELD OF THE DISCLOSURE 
     The present disclosure generally relates to antenna systems and methods. More particularly, the present disclosure relates to a spiraled slot antenna for use in compact applications. 
     BACKGROUND OF THE DISCLOSURE 
     A conventional slot antenna includes a metal surface (a ground plate), usually a flat plate, with one or more holes or slots cut out. This plate and hole or slot is driven as an antenna by a driving frequency, the slot radiates electromagnetic waves in a way similar to a dipole antenna. A slot antenna can be considered as an inverse of a dipole antenna, as a dipole antenna includes a conductive linear element surrounded by free space, and a conventional slot antenna includes a linear slot of free space surrounded by a conductive plane. The shape and size of the slot, as well as the driving frequency, determine the radiation pattern and the bandwidth that the antenna is capable of producing. A slot antenna&#39;s advantages are its size, design simplicity, and convenient adaptation to mass production using either waveguide or Printed Circuit Board (PCB) technology. A first requirement for a slot antenna is an infinitely sized ground plane (conductor) or larger enough size compared to the wavelength (λ). A second requirement is that the slit/cut/slot is close to half-wavelength (λ/2) in length to enable radiation (resonance). 
     Various devices utilize antennas for wireless communication, such as wireless Access Points (APs), streaming media devices, laptops, tablets, and the like (collectively “wireless devices”). Further, the design trend for such devices is to make them more aesthetically pleasing and have more compact form factors. The length requirements for a slot antenna limits the number of slot antennas and wavelength capabilities implemented into such devices, thus introducing an obstacle in designing antenna units for compact devices. 
     BRIEF SUMMARY OF THE DISCLOSURE 
     In various embodiments, the present disclosure relates to a slot antenna in a compact wireless device. The slot antenna is constructed using various components already included in the wireless device, e.g., heat spreaders, Printed Circuit Board (PCB) Vias, etc. The slot antenna also includes various additional slot antenna compliment components. Also, the slot antenna of the present disclosure is spiraled as to reduce its overall footprint inside of the wireless device while maintaining the required effective length for the desired output wavelength, thus allowing for more slot antennas to be placed in the wireless device. The term “spiraled” is not meant to necessarily indicate the slot antenna is curved, but rather that it is located in multiple planes. That is, the compact slot antenna can have a length that extends to a height and then to another length, to another height, etc. Also, the relative terminology here is meant in a logical sense since length and height are all relative as the corresponding wireless device can be moved. 
     In an embodiment, a compact spiraled slot antenna includes a spiraled slot with dimensions that are less than one quarter of the desired output wavelength. The compact spiraled slot antenna is formed by the coupling of a plurality of components in a wireless device. The total effective length of the slot is about one quarter of the desired output wavelength. The slot comprises of an open end and a closed end. The slot is wide enough as to allow the compact spiraled slot antenna to have a wide bandwidth. The slot is adapted to have a frequency range of 5 GHz to 6 GHz, or 6 GHz to 7 GHz for a new WiFi 6E band. A secondary slot is adapted to cover a different frequency and is fed by the same source as the primary antenna, thus broadening the bandwidth. An elongated portion and a flange allows the compact spiraled slot antenna to be fed directly from a printed circuit board (PCB). The compact spiraled slot antenna may further include components mounted within the slot, the effects of having components mounted within the slot being compensated by adjusting dimensions of the slot and adjusting the location of the feeding point of the compact spiraled slot antenna. The compact spiraled slot antenna may further include one or more air steps or ground steps to tune the compact spiraled slot antenna. 
     In another embodiment, a wireless device includes one or more heat spreaders; one or more printed circuit boards (PCB&#39;s); an antenna compliment ring including portions of multiple antennas; and one or more compact spiraled slot antennas including a spiraled slot formed by the coupling of the one or more heat spreaders, the one or more printed circuit boards (PCB&#39;s), and the antenna compliment ring, the compact spiraled slot antennas having dimensions that are less than one quarter of the desired output wavelength. The total effective length of the slot is about one quarter of the desired output wavelength. The slot comprises of an open end and a closed end. The slot is wide enough as to allow the compact spiraled slot antenna to have a wide bandwidth. The wireless device further includes a secondary slot adapted to cover a different frequency and fed by the same source as the primary antenna, thus broadening the bandwidth. The antenna compliment ring further includes one or more elongated portions and flanges, allowing the one or more compact spiraled slot antennas to be fed directly from a printed circuit board (PCB). The wireless device further includes components mounted within the one or more slots, the effects of having components mounted within the slots being compensated by adjusting dimensions of the slots and adjusting the location of the feeding point of the one or more compact spiraled slot antennas. The wireless device further includes one or more air steps or ground steps to tune the compact spiraled slot antenna. 
     In a further embodiment, a wireless device with one or more slot antennas includes: one or more heat spreaders including multiple cavities which form portions of the one or more slot antennas; one or more printed circuit boards (PCB&#39;s) including a feeding mechanism and a plurality of via holes to allow electrical current to flow through the PCB; an antenna compliment ring including portions of multiple antennas; and one or more compact spiraled slot antennas including a spiraled slot formed by the coupling of the one or more heat spreaders, the one or more printed circuit boards (PCB&#39;s), and the antenna compliment ring, the compact spiraled slot antennas having dimensions that are less than one quarter of the desired output wavelength. The total effective length of the slot is about one quarter of the desired output wavelength. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present disclosure is illustrated and described herein with reference to the various drawings, in which like reference numbers are used to denote like system components/method steps, as appropriate, and in which: 
         FIG.  1    is a diagram of a half-wavelength slot antenna. 
         FIG.  2    is a diagram of an open-slot quarter-wavelength slot antenna. 
         FIG.  3    is a diagram of a spiraled open-slot quarter-wavelength slot antenna. 
         FIG.  4    is a diagram of a spiraled open-slot quarter-wavelength slot antenna with a plurality of steps. 
         FIG.  5    is a block diagram of functional components of a wireless access point as an example wireless device implementing the slot antenna described herein. 
         FIG.  6    is a perspective diagram of a physical form factor for the wireless access point. 
         FIG.  7    is a perspective diagram of the inner components of an example wireless device implementing the compact spiraled slot antenna described herein. 
         FIG.  8    is a side perspective diagram of the upper heat spreader of an example wireless device implementing the compact spiraled slot antenna described herein. 
         FIG.  9    is a front perspective diagram of the upper heat spreader of an example wireless device implementing the compact spiraled slot antenna described herein. 
         FIG.  10    is a perspective diagram of the antenna compliment ring of an example wireless device implementing the compact spiraled slot antenna described herein. 
         FIG.  11    is a perspective diagram of the compact spiraled slot antenna of an example wireless device of the present disclosure. 
         FIG.  12    is a perspective diagram of the compact spiraled slot antenna of an example wireless device of the present disclosure, the compact spiraled slot antenna including steps. 
         FIG.  13    is a perspective diagram of the compact spiraled slot antenna of an example wireless device of the present disclosure, the compact spiraled slot antenna having components therein. 
         FIG.  14    is a perspective diagram of the elongate portion of the compact spiraled slot antenna of an example wireless device of the present disclosure. 
         FIG.  15    is a perspective diagram of the feeding clip and cavity of the compact spiraled slot antenna of an example wireless device of the present disclosure. 
         FIG.  16    is a side perspective diagram of the feeding clip of the compact spiraled slot antenna of an example wireless device of the present disclosure. 
         FIG.  17    is a top perspective diagram of the feeding clip and cavity of the compact spiraled slot antenna of an example wireless device of the present disclosure. 
         FIG.  18    is a top perspective diagram of the antenna compliment ring of the compact spiraled slot antenna of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE DISCLOSURE 
     In various embodiments, the present disclosure relates to a slot antenna in a compact wireless device. The slot antenna is constructed using various components already included in the wireless device, e.g., heat spreaders, Printed Circuit Board (PCB) Vias, etc. The slot antenna also includes various additional slot antenna compliment components. Also, the slot antenna of the present disclosure is spiraled as to reduce its overall footprint inside of the wireless device while maintaining the required effective length for the desired output wavelength, thus allowing for more slot antennas to be placed in the wireless device. The term “spiraled” is not meant to necessarily indicate the slot antenna is curved, but rather that it is located in multiple planes. That is, the compact slot antenna can have a length that extends to a height and then to another length, to another height, etc. Also, the relative terminology here is meant in a logical sense since length and height are all relative as the corresponding wireless device can be moved. 
     A wireless device with a slot antenna includes one or more heat spreaders, a PCB with vias to allow current to flow through the PCB, various components disposed on the PCB, and a slot antenna compliment. By layering the components, e.g., heat spreaders, PCB, slot antenna compliment, etc. one or more slot antennas are formed from these components as to integrate the slot antennas into the existing structure. The formed slot antenna is a spiraled shape as to reduce the overall footprint of the slot antenna while keeping the required quarter-wavelength total effective length of an open-slot antenna. The formed slot antenna is wide enough to allow the antenna to accommodate a wide bandwidth and may include a plurality of steps to further allow for tuning of the length of the slot antenna. The wireless device can further include a housing enclosing the internal components. 
       FIG.  1    is a diagram of a half-wavelength slot antenna. The slot antenna  100  includes a slot  102  who&#39;s length L is about half (λ/2) of the of the wavelength λ, and a ground plane  104  which is large relative to the wavelength λ of interest. The slot  102  includes a width W which is much less than the wavelength λ and much less than the length L of the slot  102 . An electric current  106  is shown traveling around the perimeter of the slot  102  and an electric field  108  is shown flowing across the slot  102 . The electric current  106  is much stronger along the ends of the slot  102  and depicted by longer arrows, and the electric current  106  is considerably weaker towards the center of the slot  102  and represented by the shorter electric current  106  arrows. Inversely, the electric field  108  creates most of the radiation and is much stronger in the center of the slot  102  and much weaker towards the ends of the slot  102 . The slot antenna  100  shown in  FIG.  1    is a conventional half-wavelength slot antenna and takes up a considerable amount of space inside of a wireless device as there is a requirement for the extension of the length L in a single plane. 
       FIG.  2    is a diagram of an open-slot quarter-wavelength slot antenna. The slot antenna  200  includes a slot  202  who&#39;s length L is about a quarter (λ/4) of the of the wavelength λ, and a ground plane  204  which is again large relative to the wavelength λ of interest. The slot  202  includes a width W which is much less than the wavelength λ and much less than the length L of the slot  202 . The open-slot quarter-wavelength slot antenna includes an open end  210 . Due to symmetry, the open-slot antenna can have a length L that is one quarter of the wavelength λ and still maintain similar performance. An electric current  206  is again shown traveling around the perimeter of the slot  202  and an electric field  208  is shown flowing across the slot  202 . The electric current  206  is much stronger along the closed end  212  (shorting end) of the slot  202  and depicted by longer arrows, and the electric current  206  is considerably weaker towards the open end  210  of the slot  202  and represented by the shorter electric current  206  arrows. Inversely, the electric field  208  creates most of the radiation and is much stronger at the open end  210  of the slot  202  and much weaker towards the closed end  212  of the slot  202 . The slot antenna  200  shown in  FIG.  2    is a conventional open-slot quarter-wavelength slot antenna and still takes up a considerable amount of space inside of a wireless device. 
       FIG.  3    is a diagram of a spiraled open-slot quarter-wavelength slot antenna. Again, the term “spiraled” is not meant to necessarily indicate the slot antenna is curved, but rather that it is located in multiple planes. That is, the compact slot antenna can have a length that extends to a height and then to another length, to another height, etc. as to reduce the overall dimensions of the antenna while maintaining a necessary overall slot length. Also, the relative terminology here is meant in a logical sense since length and height are all relative as the corresponding wireless device can be moved. This slot antenna  300  includes a slot  302  that is bent over itself in a spiraled manner, again showing the slot  302  being located in multiple planes and having a plurality of lengths which make up a total length L. It will be appreciated that the plurality of lengths L may extend in any direction and any plane as to create a continuous slot  302 . The total length L of the slot  302  of the spiraled open-slot antenna is about a quarter of the wavelength λ as it was for the non-spiraled open-slot antenna of  FIG.  2   . Because of the slot being spiraled, the overall length of the antenna is much smaller than a conventional open-slot antenna, thus taking up much less space inside of a wireless device. A ground plane  304 , which is again large relative to the wavelength λ of interest, is disposed around the slot  302 . The slot  302  includes a length L (i.e., total effective length) which is the sum of all lengths (L 1 , L 2 , and L 3 ) and a width W which is much less than the wavelength λ and much less than the length L of the slot  302 . Again, the lengths (L 1 , L 2 , and L 3 ) may extend in any direction and in any plane, creating any configuration. It will also be appreciated that any number of lengths (L 1 , . . . , Ln) may be used to create the slot  302 . The spiraled open-slot quarter-wavelength slot antenna includes an open end  310 . Due to symmetry, the open-slot antenna can have a total length L that is one quarter of the wavelength λ and still maintain similar performance of a conventional half-wavelength slot antenna. An electric current  306  is again shown traveling around the perimeter of the slot  302  and an electric field  308  is shown flowing across the slot  302 . The electric current  306  is much stronger along the closed end  312  (shorting end) of the slot  302  and depicted by longer arrows, and the electric current  306  is considerably weaker towards the open end  310  of the slot  302  and represented by the shorter arrows. Inversely, the electric field  308  creates most of the radiation and is much stronger at the open end  310  of the slot  302  and much weaker towards the closed end  312  of the slot  302 . Because the total effective length L of the open slot antenna  300  is still one quarter of the wavelength λ, and the slot is spiraled over itself, the overall footprint of the spiraled open-slot antenna is much smaller than a conventional open-slot antenna. This allows more of these antennas to be placed in a wireless device while maintaining a small form factor. 
       FIG.  4    is a diagram of a spiraled open-slot quarter-wavelength slot antenna with a plurality of steps. The spiraled open-slot antenna  400  includes a plurality of steps, the steps being air-steps  414  and ground-steps  416 . These steps are introduced to allow the slot antenna  400  to be tuned, thus tuning the resonance of the antenna  400 . When these steps are introduced, they change the effective length L and/or width W of the antenna  400  and in turn change the radiating characteristics of the antenna  400 . An air-step is characterized by an extra cut out section in the slot  402 , increasing the effective length L and/or width W of the slot. A ground-step is an extension of the ground plane  404  protruding into the slot  402 , decreasing the effective length L and/or width W of the slot  402 . 
       FIG.  5    is a block diagram of functional components of a wireless access point as an example wireless device implementing the slot antenna described herein. The access point  518  contains a processor  520 , a plurality of radios  522 , a local interface  524 , a data store  526 , a network interface  528 , and power  530 . It should be appreciated by those of ordinary skill in the art that  FIG.  5    depicts the access point  518  in an oversimplified manner, and a practical embodiment may include additional components and suitably configured processing logic to support features described herein or known or conventional operating features that are not described in detail herein. 
     The processor  520  is a hardware device for executing software instructions. The processor  520  can be any custom made or commercially available processor, a central processing unit (CPU), an auxiliary processor among several processors, a semiconductor-based microprocessor (in the form of a microchip or chip set), or generally any device for executing software instructions. When the access point  518  is in operation, the processor  520  is configured to execute software stored within memory or the data store  526 , to communicate data to and from the memory or the data store  526 , and to generally control operations of the access point  518  pursuant to the software instructions. In an embodiment, the processor  520  may include a mobile-optimized processor such as optimized for power consumption and mobile applications. 
     The radios  522  enable wireless communication. The radios  522  can operate according to the IEEE 802.11 standard. The radios  522  include address, control, and/or data connections to enable appropriate communications on a Wi-Fi system. As described herein, the access point  518  includes a plurality of radios to support different links, i.e., backhaul links and client links. Also, the radios  522  can include a Bluetooth interface as well for local access, control, onboarding, etc. The radios  522  contemplate using the spiraled slot antenna structure described herein. 
     The local interface  524  is configured for local communication to the access point  518  and can be either a wired connection or wireless connection such as Bluetooth or the like. Since the access point  518  can be configured via the cloud, an onboarding process is required to first establish connectivity for a newly activated access point  518 . In an embodiment, the access point  518  can also include the local interface  524  allowing connectivity to a user device for onboarding to a Wi-Fi system such as through an app on the user device. The data store  526  is used to store data. The data store  526  may include any of volatile memory elements (e.g., random access memory (RAM, such as DRAM, SRAM, SDRAM, and the like)), nonvolatile memory elements (e.g., ROM, hard drive, tape, CDROM, and the like), and combinations thereof. Moreover, the data store  526  may incorporate electronic, magnetic, optical, and/or other types of storage media. 
     The network interface  528  provides wired connectivity to the access point  518 . The network interface  528  may be used to enable the access point  518  communicate to a modem/router. Also, the network interface  528  can be used to provide local connectivity to a user device. For example, wiring in a device to an access point  518  can provide network access to a device which does not support Wi-Fi. The network interface  528  may include, for example, an Ethernet card or adapter (e.g., 10BaseT, Fast Ethernet, Gigabit Ethernet, 10 GbE). The network interface  528  may include address, control, and/or data connections to enable appropriate communications on the network. The processor  520  and the data store  526  can include software and/or firmware which essentially controls the operation of the access point  518 , data gathering and measurement control, data management, memory management, and communication and control interfaces with the cloud. 
       FIG.  6    is a perspective diagram of a physical form factor  632  for a wireless access point. The physical form factor  632  includes electrical plugs  634  to allow the wireless access point to be plugged into a wall outlet. The dimensions of the wireless device are small such that a plurality of conventional slot antennas  100  ( FIG.  1   ) and/or open-slot antennas  200  ( FIG.  2   ) are not able to be placed inside of the wireless device. The compact spiraled slot antenna of the present disclosure is small enough to allow for a plurality to be placed in small form factor wireless devices such as the physical form factor  632  depicted in  FIG.  6   . 
       FIG.  7    is a perspective diagram of the inner components  736  of an example wireless device implementing the compact spiraled slot antennas  700   a  and  700   b  described herein. The inner components  736  of an example wireless device include a lower heat spreader  738 , a Printed Circuit Board (PCB)  740 , an upper heat spreader  742 , and an antenna compliment ring  744 . Other components such as coaxial cables  746  and screws  748  are also disposed along the inner components  736 . 
     The compact spiraled slot antennas  700   a  and  700   b  are formed by the combination of components including the antenna compliment ring  744 , plurality of heat spreaders  738  and  742 , and the PCB  740 . The combination of these components create a slot which acts as the compact spiraled slot antenna  700   a  and  700   b . The current flows around the slot and through the PCB by way of via holes (described further herein) to create an electric field, thus allowing the spiraled slot antenna to radiate. The compact spiraled slot antennas  700   a  and  700   b  are tuned to allow a wide range of bandwidth, for example 5 GHz to 6 GHz, although not limited to such frequencies. 
     The components such as the lower heat spreader  738 , PCB  740 , upper heat spreader  742 , and antenna compliment ring  744  are fixedly attached to one another via screws  748  or other suitable attachment methods known to one of ordinary skill in the art. It will be appreciated that the compact spiraled slot antennas  700   a  and  700   b  may be formed using any other conductive or nonconductive components, such nonconductive components having an electrical current bridge such as via holes. The components shown in  FIG.  7    shall be construed as a non-limiting example. 
       FIG.  8    is a front perspective diagram of the upper heat spreader  842  of an example wireless device implementing the compact spiraled slot antenna described herein. The upper heat spreader  842  includes cooling fins  850 , and a plurality of cavities  852  of varying sizes to accommodate the different spiraled slot antennas  700   a  and  700   b  ( FIG.  7   ). A hollowed space  854  is disposed on the surface of the upper heat spreader  842  to accommodate a cooling fan or other active cooling mechanism known in the art. 
     The cavities  852  are arranged along the outer circumference of the upper heat spreader  842 . The cavities  852  are adapted to both allow the antenna compliment ring, described further herein, to extend down into the cavities and be positioned above the PCB which is disposed below the upper heat spreader  842 . The cavities  852  include slot edges  856  which make up a portion of the slot when the components are fixed together. 
       FIG.  9    is a side perspective diagram of the upper heat spreader  942  of an example wireless device implementing the compact spiraled slot antenna described herein. The upper heat spreader  942  again includes cooling fins  950 , a plurality of cavities  952  of varying sizes to accommodate the different spiraled slot antennas  700   a  and  700   b  ( FIG.  7   ), and a hollowed space  954 . The cavities  952  can be seen disposed along the entire edge of the upper heat spreader  942  and can poses different dimensions and shapes. 
       FIG.  10    is a perspective diagram of the antenna compliment ring  1044  of an example wireless device implementing the compact spiraled slot antenna described herein. The antenna compliment ring  1044  includes various ground planes  1004 , elongate portions  1058 , and bridge members  1060 . The elongate portions  1058  further include flanges  1062  which act as a feeding point for the compact spiraled slot antenna. The antenna compliment ring  1044  forms a plurality of closed ends (shorting ends)  1012  which make up the closed ends of the plurality of compact spiraled slot antennas when the various components  736  ( FIG.  7   ) are assembled. 
     The ground planes  1004  are adapted to emulate an infinite ground sheet as is called for by a slot antenna. The various ground planes  1004  extend from the edges of the compact spiraled slot antennas and may extend straight or be folded to conserve space. The various ground planes  1004  are large enough as to allow the compact spiraled slot antenna to have adequate performance while conserving space inside of the wireless device. One or more bridge members  1060  are adapted to link the plurality of ground planes  1004  and elongate portions  1058 , allowing the antenna compliment ring  1044  to be installed as one single component. 
     The elongate portions  1058  extend to create a slot, described further herein, and provide a feeding point via the flanges  1062 . The flanges  1062  are adapted to be positioned in relation to a PCB as to receive a feeding mechanism from the PCB such as a spring clip  1164  ( FIG.  11   ) or other connection of the like. The flange  1062  being positioned as to allow the compact spiraled slot antenna to be fed at its most optimal location. 
       FIG.  11    is a perspective diagram of the compact spiraled slot antenna  1100  of an example wireless device of the present disclosure. The assembled components including the lower heat spreader  1138 , the PCB  1140 , the upper heat spreader  1142 , and the antenna compliment ring  1144  form the slot  1102  of the compact spiraled slot antenna  1100 . The slot  1102  may include a plurality of lengths (L 1 , L 2 , and L 3 ) as shown in  FIG.  3    creating the total length L of the slot. That is, the compact slot antenna can have a length that extends to a height and then to another length, to another height, etc. as to reduce the overall dimensions of the antenna while maintaining a necessary overall slot length. Also, the relative terminology here is meant in a logical sense since length and height are all relative as the corresponding wireless device can be moved. Again, showing the slot  1102  being located in multiple planes and having a plurality of lengths which make up a total length L. It will be appreciated that the plurality of lengths L may extend in any direction and any plane as to create a continuous slot  1102 . The slot includes an open end  1110  and a closed end  1112  (shorting end) making it perform as an open slot antenna. The various components such as the lower heat spreader  1138 , the PCB  1140 , the upper heat spreader  1142 , and the antenna compliment ring  1144  act as the ground plane  1104  of the antenna. A plurality of via holes  1166  are disposed through the PCB  1140  to allow the current to flow to the lower heat spreader  1138 . 
     The elongate portion  1158  extends into the cavity  952  ( FIG.  9   ) formed in the upper heat spreader  1142 , thus causing the slot  1102  to bend (spiral) similar to the open-slot antenna of  FIG.  3    and  FIG.  4   . The total length of the slot  1102  of the compact spiraled slot antenna  1100  is about a quarter of the wavelength λ. Because of the slot  1102  being spiraled, the overall length of the antenna is much smaller than a conventional open-slot antenna, thus taking up much less space inside of a wireless device. The elongate portion includes a flange  1162  with which the compact spiraled slot antenna  1100  is fed by a spring clip  1164  or other means of electrical connection of the like such as a screw or solder joint. The flange  1162  being positioned as to allow the compact spiraled slot antenna  1100  to be fed at its most optimal location. 
     The via holes  1166  allow the slot  1102  to extend down to the lower heat spreader  1138  thus widening the slot  1102 . The electric current flows around the perimeter of the slot  1102  and an electric field flows across the slot  1102 . The electric current is much stronger along the closed end  1112  (shorting end) of the slot  1102  and the electric current is considerably weaker towards the open end  1110  of the slot  1102 . Inversely, the electric field creates most of the radiation and is much stronger at the open end  1110  of the slot  1102  and much weaker towards the closed end  1112  of the slot  1102 . Because the total effective length L of the compact spiraled slot antenna  1100  is still about one quarter of the wavelength λ, and the slot is spiraled over itself, the overall footprint of the compact spiraled slot antenna  1100  is much smaller than a conventional open-slot antenna  200  ( FIG.  2   ). This allows more antennas to be placed in a wireless device while maintaining a small form factor. The slot  1102  is adapted to be wide enough to accommodate a wide range of bandwidth, for example, around 5 GHz to 6 GHz, or 6 GHz to 7 GHz for the new WiFi 6E band in some embodiments. 
       FIG.  12    is a perspective diagram of the compact spiraled slot antenna  1200  of an example wireless device of the present disclosure, the compact spiraled slot antenna  1200  including steps. The compact spiral slot antenna is again formed by the assembly of various components including the lower heat spreader  1238 , the PCB  1240 , the upper heat spreader  1242 , and the antenna compliment ring  1244 , all of which form the slot  1202  of the compact spiraled slot antenna  1100 . 
     The antenna compliment ring  1244  includes the elongated portion  1258  which further includes the flange  1262 . The antenna complement ring  1244  of the present illustrated embodiment further includes an air step  1214 . The air step  1214  is disposed in the ground plane  1204  and sized as to tune the length and/or width of the slot  1202 , thus tuning the antenna for a particular resonance. 
       FIG.  13    is a perspective diagram of the compact spiraled slot antenna  1300  of an example wireless device of the present disclosure, the compact spiraled slot antenna  1300  having components therein. As in previous illustrated embodiments, the compact spiral slot antenna  1300  is again formed by the assembly of various components including the lower heat spreader  1338 , the PCB  1340 , the upper heat spreader  1342 , and the antenna compliment ring  1344 , all of which form the slot  1302  of the compact spiraled slot antenna  1300 . A coaxial cable  1346  is disposed through of the slot  1302  of the compact spiraled slot antenna  1300  of the present illustrated embodiment. The cavity  952  ( FIG.  9   ) is sized as to accommodate the coaxial cable  1346 , allowing the coaxial cable  1346  and/or other electrical components to be electrically coupled to the PCB  1340  inside of the slot  1302 . 
     The compact spiral slot antenna  1300  is tuned, by way of sizing the slot and/or moving the location of the feeding point, i.e., the location of the spring clip  1364  and flange  1362 . The slot  1302  is tuned to cancel out any disturbance caused by the introduction of the coaxial cable  1346  in the slot  1302 . The compact spiraled slot antenna  1300  of the present embodiment may also use a matching network to cancel out any impact introduced by components such as the coaxial cable  1346  disposed through the slot  1302 . This configuration allows the compact spiraled slot antenna  1300  to radiate while also carrying its own feed. 
       FIG.  14    is a perspective diagram of the elongated portion  1458  of the compact spiraled slot antenna of an example wireless device of the present disclosure. The elongated portion  1458  and flange  1462  act as both the perimeter of the slot  1402  and as a feeding point for the compact spiraled slot antenna of the present disclosure. The flange  1462  makes contact with a spring clip  1464  which feeds the antenna via the PCB  1440 . The spring clip  1464  may be replaced by any other form of electrical connection such as a screw, solder joint, or other connection of the like. In various embodiments the flange  1462  may also make direct contact with the PCB  1440  to electrically couple and feed the compact spiraled slot antenna. 
       FIG.  15    is a perspective diagram of the spring clip  1564  and cavity  1552  of the compact spiraled slot antenna of an example wireless device of the present disclosure. A plurality of cavities  1552  are arranged along the outer circumference of the upper heat spreader  1542 . The cavities  1552  are adapted to both allow the antenna compliment ring  744  ( FIG.  7   ), described further herein, to extend down into the cavities  1552  and be positioned above the PCB  1540  which is disposed below the upper heat spreader  1542 . The cavities  1552  are sized to accommodate various embodiments of the compact spiraled slot antenna, for example, allowing room for components such as coaxial cables to be disposed on the PCB  1540  inside of the cavities  1552 . The cavities  1552  include slot edges  1556  which make up a portion of the slot when various components are fixed together. The spring clip  1564  contacts the flange (not shown) to feed the compact spiraled slot antenna from the PCB  1540 . The spring clip  1564  may be replaced by any other form of electrical connection such as a screw, solder joint, or other connection of the like. 
       FIG.  16    is a side perspective diagram of the spring clip  1664  of the compact spiraled slot antenna of an example wireless device of the present disclosure. The spring clip  1664  may be replaced by any other form of electrical connection such as a screw, solder joint, or other connection of the like. The present illustrated embodiment including the spring clip  1664  shall be construed as a non-limiting example. 
       FIG.  17    is a top perspective diagram of the spring clip  1764  and cavity  1752  of the compact spiraled slot antenna of an example wireless device of the present disclosure. The cavities  1752  are sized to accommodate various embodiments of the compact spiraled slot antenna, for example, allowing room for components such as coaxial cables to be disposed on the PCB  1740  inside of the cavities  1752 . 
       FIG.  18    is a top perspective diagram of the compact spiraled slot antenna  1800  of an example wireless device of the present disclosure. The top portion of the antenna compliment ring  1844  includes the ground planes  1804  which may be in plane with the slot of the antenna or bent. A secondary slot  1868  is formed by the various bent portions of the ground planes  1804 . The secondary slot  1868  can be fed through the same elongated portion  1858  and flange  1862  used by the compact spiraled slot antenna of the present disclosure. The secondary slot  1868  may be a different length than the primary antenna (compact spiraled slot antenna) thus allowing additional frequencies to be radiated. 
     Although the present disclosure has been illustrated and described herein with reference to preferred embodiments and specific examples thereof, it will be readily apparent to those of ordinary skill in the art that other embodiments and examples may perform similar functions and/or achieve like results. All such equivalent embodiments and examples are within the spirit and scope of the present disclosure, are contemplated thereby, and are intended to be covered by the following claims. Moreover, it is noted that the various elements, operations, steps, methods, processes, algorithms, functions, techniques, etc. described herein can be used in any and all combinations with each other.