Patent Description:
Propelled by never-ending communications development, communications systems are updated rapidly. A single base station antenna form can hardly meet evolution requirements. In addition, with refined communications development, more specific requirements are imposed on an antenna form, to adapt to various complex and diversified communication scenarios. However, at present, an antenna delivered from the factory can adapt only to a single scenario, because a frequency band corresponding to the antenna is already fixed. When complex and diversified communication scenarios arise, an antenna apparatus cannot adapt to the scenarios. As a result, requirements in different scenarios cannot be met conveniently.

<CIT> relates to base station arrangements for diversity transmission and reception.

Embodiments and aspects not falling within the scope are exemplary.

This application provides an antenna apparatus, to improve adaptability of the antenna apparatus.

According to a first aspect, defined by claims <NUM> to <NUM>, an antenna apparatus is provided.

According to a third aspect, defined by claim <NUM>, a communications system is further provided. The communications system includes the antenna apparatus according to any one of claims <NUM> to <NUM>.

In the solutions of this application, the radio frequency unit and the antenna are connected by using an integrated signal processing module. The signal processing module may be integrated with components such as the filter, the duplexer, and the feeding network. Components for processing signals are integrated by using the signal processing module, to improve an integration degree of the antenna apparatus, thereby achieving a high integration degree. In addition, the signal processing module uses a pluggable manner to facilitate replacement. The antenna includes the spliceable antenna bay. Therefore, the antenna apparatus can use different signal processing modules based on requirements in different scenarios and matching antennas are replaced at the same time. For example, antenna replacement can be implemented by splicing antenna bays. This improves flexibility and adaptability of the antenna apparatus and also facilitates more convenient replacement of the antenna apparatus.

The following describes some terms in this application:.

An antenna apparatus provided in the embodiments of this application is applied to a network device and can adapt to different communication scenarios, featuring flexibility and adaptability.

Refer to <FIG> is a schematic structural diagram of an antenna apparatus <NUM> according to an embodiment of this application. <FIG> is a reference diagram illustrating a usage state of the antenna apparatus <NUM> according to this embodiment of this application. In the structure shown in <FIG>, the antenna apparatus <NUM> mainly includes a signal processing module <NUM> and an antenna <NUM>. The signal processing module <NUM> is at least configured to perform feeding for a signal received or to be sent by the antenna <NUM>. The antenna <NUM> is configured to send or receive the signal. Also referring to <FIG>, when the antenna apparatus <NUM> is being used, the signal processing module <NUM> is connected to a radio frequency unit <NUM>. When the antenna apparatus <NUM> is configured to transmit a signal, the radio frequency unit <NUM> is configured to provide a signal to be sent by the antenna <NUM>, the signal processing module <NUM> is configured to process the signal and transfer a processed signal to the antenna <NUM>, and the antenna <NUM> is configured to transmit the signal. When the antenna apparatus <NUM> receives a signal, the signal flows in a direction opposite to signal sending. In the antenna apparatus <NUM> provided in this embodiment of this application, some components, for example, passive components such as a feeding network and a filter, are integrated to form the signal processing module <NUM>. Different components may be disposed on the signal processing module <NUM> to adaptively process a signal between the radio frequency unit <NUM> and the antenna <NUM>. When the signal processing module <NUM> is specifically disposed, the signal processing module <NUM> includes a signal processing circuit <NUM>. The signal processing circuit <NUM> is separately connected to the radio frequency unit <NUM> and the antenna <NUM>.

It can be learned that the signal processing module is formed by integrating the passive components, and the module is pluggable. Different signal processing modules can be flexibly replaced, to adapt to different communication scenarios. In addition, when a component such as the feeding network or the filter is aged or damaged, only the signal processing module needs to be plugged out for repair or replacement, facilitating convenient repair or replacement. When the signal processing module <NUM> includes a feeding network <NUM>, different connection manners may be available. For example, in a first connection manner, the signal processing module includes only the feeding network. As shown in <FIG>, the signal processing circuit <NUM> includes only the feeding network <NUM> (where a dashed box in <FIG> indicates that a filter unit <NUM> is an optional component that may be provided or not provided). The feeding network <NUM> is separately connected to the radio frequency unit <NUM> and the antenna <NUM>. The feeding network <NUM> may include different components, for example, a phase shifter and a power splitter (not shown in the figure). In this way, the feeding network <NUM> can implement phase shifting and power splitting effects, and can implement power splitting and phase shifting for different antenna apparatuses when being connected to the antenna <NUM>. Certainly, alternatively, the feeding network <NUM> may include only the phase shifter, include only the power splitter, or may include another component such as a coupler. This is not limited in this application.

Certainly, except the structure shown in <FIG>, the signal processing module may include a plurality of feeding networks. The plurality of feeding networks may be connected to each other in series and/or in parallel.

Optionally, the signal processing circuit <NUM> may further include another module in addition to the feeding network <NUM>. Still referring to <FIG>, the signal processing circuit <NUM> includes the feeding network <NUM> and the filter unit <NUM>. When the filter unit <NUM> is specifically disposed, different filter components may be used, for example, a filter or a duplexer (not shown in the figure). In actual disposition, different filter units <NUM> may be selected based on a required scenario and connected to the feeding network <NUM>.

When the signal processing module includes the feeding network and the filter unit, the following three optional connection solutions are illustrated: Solution <NUM>: A feeding network and a filter unit included in the signal processing circuit are connected in a one-to-one manner. For example, the antenna, the feeding network, and the filter unit are connected in sequence; or the antenna, the filter unit, and the feeding network are connected in sequence. As shown in <FIG>, when the signal processing circuit <NUM> includes one filter unit <NUM> and one feeding network <NUM>, the feeding network <NUM> is connected to the antenna <NUM>, and the corresponding filter unit <NUM> is connected to the radio frequency unit <NUM>. Certainly, except the connection manner shown in <FIG>, alternatively, the feeding network <NUM> may be connected to the radio frequency unit <NUM>, and the corresponding filter unit <NUM> may be connected to the antenna <NUM>. In addition, the feeding network <NUM> and the filter unit <NUM> in the signal processing circuit <NUM> may alternatively be connected in another manner. For example, a feeding network and a plurality of filter units included in the signal processing circuit are connected in a one-to-many manner. In a specific one-to-many connection manner, two specific connection manners are available. In one manner, the feeding network is separately connected to the plurality of filter units. As shown in <FIG>, a signal processing circuit 22a includes one feeding network 21a and two filter units: a first filter unit 23a1 and a second filter unit 23a2. During connection, the feeding network 21a is connected to the antenna 30a, the first filter unit 23a1 and the second filter unit 23a2 are disposed in parallel, and two ends of each of the first filter unit 23a1 and the second filter unit 23a2 are separately connected to the feeding network 21a and the radio frequency unit 10a. During specific signal connection, the feeding network 21a may be connected to the first filter unit 23a1 and the second filter unit 23a2 by using selective switches, or directly connected to the first filter unit 23a1 and the second filter unit 23a2 separately. In this case, the feeding network 21a includes a power splitter. Optionally, the feeding network may be connected to the plurality of filter units in any sequence.

Besides the foregoing one-to-many manner between the feeding network and the filter units, a filter unit and feeding networks may further be connected in a one-to-many manner. In other words, in this case, one filter unit corresponds to a plurality of feeding networks. Correspondingly, in a manner, the filter unit is separately connected to the plurality of feeding networks. As shown in <FIG>, when a filter unit included in a signal processing circuit <NUM> is a duplexer, with reference to <FIG>, as an example for description, a filter unit 23a included in a signal processing circuit 22a in <FIG> is a duplexer. For example, the signal processing module <NUM> includes one signal processing circuit 22a, and the signal processing circuit 22a includes a duplexer 23a and a feeding network 21a. The feeding network 21a can be configured to receive a signal and send a signal at the same time. Alternatively, the feeding network 21a includes a feeding subnetwork 21a1 and a feeding subnetwork 21a2. Two channels of the duplexer are separately connected to the feeding subnetwork 21a1 and the feeding subnetwork 21a2. The feeding subnetwork 21a1 is configured to process the received signal, and the feeding subnetwork 21a2 is configured to process a to-be-sent signal. Alternatively, the feeding subnetwork 21a1 is configured to process a to-be-sent signal, and the feeding subnetwork 21a2 is configured to process the received signal.

It can be learned that when the filter unit included in the signal processing circuit <NUM> is a duplexer, signal receiving and signal sending of the antenna apparatus are processed separately in the signal processing module <NUM>. Compared with the prior art in which a duplexer is integrated into a radio frequency unit, this can reduce a volume of the radio frequency unit <NUM>. In addition, a duplexer is a main component that generates heat in the radio frequency unit <NUM>. Therefore, when the radio frequency unit <NUM> does not include a duplexer, heat of the radio frequency unit <NUM> can be reduced. This is conducive to heat dissipation of the radio frequency unit <NUM>. Moreover, this reduces design requirements on the radio frequency unit <NUM> and also reduces power consumption of the radio frequency unit <NUM>. Furthermore, the signal processing module in this application is pluggable. Therefore, when the duplexer is damaged or aged, the signal processing module can be plugged out, facilitating convenient repair or replacement. Alternatively, the signal processing module may be replaced based on an applicable scenario.

When the filter unit 23a is a wideband filter or a dual-band filter, still referring to <FIG>, for example, the filter unit 23a may work in a first frequency band and a second frequency band. The signal processing module <NUM> includes one signal processing circuit 22a. The signal processing circuit 22a includes the filter unit 23a and the feeding network 21a. The feeding network 21a can work in the first frequency band and the second frequency band at the same time. Alternatively, the feeding network 21a includes the feeding subnetwork 21a1 and the feeding subnetwork 21a2. The feeding subnetwork 21a1 works in the first frequency band, the feeding subnetwork 21a2 works in the second frequency band, and the filter is separately connected to the feeding subnetwork 21a1 and the feeding subnetwork 21a2. That the filter can work in two frequency bands illustrated in this embodiment of this application is merely an example. The filter 23a may alternatively work in one frequency band or a plurality of frequency bands.

<FIG> shows only a case in which the signal processing module <NUM> includes one signal processing circuit 22a. The signal processing module <NUM> may alternatively include a plurality of signal processing circuits. The signal processing circuits may be identical or different in terms of included components and quantities of the components. This is not limited in this application.

In addition, the filter unit may alternatively be connected to the plurality of feeding networks in any sequence.

It should be noted that the signal processing circuit provided in this application uses any one of the foregoing connection manners or uses any combination of the foregoing connection manners.

For example, the signal processing circuit includes a plurality of feeding networks and a plurality of filter units. The filter units and the feeding networks are connected in sequence in an alternate manner. In addition, components located at ends of the signal processing circuit are separately connected to the radio frequency unit and the antenna. If two filter units are located at the ends, the two filter units are separately connected to the radio frequency unit and the antenna. If two feeding networks are located at the ends, the two feeding networks are separately connected to the radio frequency unit and the antenna. If a feeding network and a filter unit are located at the ends, the feeding network may be connected to the radio frequency unit (or the antenna) and the filter unit may be correspondingly connected to the antenna (or the radio frequency unit) as required. Optionally, the filter units and the feeding networks are separately connected, specifically in the following sequence: "a filter unit <NUM>, a filter unit <NUM>,. , a filter unit k, a feeding network <NUM>, a feeding network <NUM>,. , and a feeding network g". In other words, the filter unit <NUM> to the filter unit k are connected in sequence, the filter unit k and the feeding network <NUM> are connected to each other, and the feeding network <NUM> to the feeding network g are connected in sequence, where both k and g are greater than or equal to <NUM>, and k and g may be equal or may be unequal. Optionally, the signal processing circuit further includes a filter unit and a plurality of feeding networks that are connected in a one-to-many manner, and/or a feeding network and filter units that are connected in a one-to-many manner.

Optionally, when the signal processing circuit includes a plurality of filter units and a plurality of feeding networks, the filter units and the feeding networks may be arranged as required. For example, the filter units and the feeding networks are arranged in an alternate manner. For example, there is one feeding network <NUM> and two filter units <NUM>, there are two feeding networks <NUM> and one filter unit <NUM>, or there are two or more feeding networks <NUM> and two or more filter units <NUM>. A feeding network <NUM> and a filter unit <NUM> are disposed in an alternate manner. In addition, components located at ends of the signal processing circuit <NUM> are connected to the radio frequency unit <NUM> and the antenna <NUM>. As shown in <FIG>, an ellipsis on each signal processing circuit represents an omitted intermediate component, including a filter unit and a feeding unit. Two filter units 23a are located at ends of a first signal processing circuit 22a, and the two filter units 23a are separately connected to a radio frequency unit 10a and the antenna <NUM>. Two feeding networks 21b are located at ends of a second signal processing circuit 22b, and the two feeding networks 21b are separately connected to a radio frequency unit 10b and the antenna <NUM>. When a feeding network 21c and a filter unit 23c are located at ends of a third signal processing circuit 22c, the feeding network 21c is connected to the antenna <NUM> and the filter unit 23c is connected to a radio frequency unit 10c. Optionally, alternatively, the feeding network 21c may be connected to the radio frequency unit 10c, and the filter unit 23c may be correspondingly connected to the antenna <NUM> as required. Alternatively, for example, in another arrangement manner, a filter unit <NUM>, a filter unit <NUM>, and a feeding network <NUM> are arranged in sequence. Alternatively, for example, in another arrangement manner, a filter unit <NUM>, a feeding network <NUM>, a filter unit <NUM>, and a filter unit <NUM> are arranged in sequence. These are merely examples here. Quantities and arrangements of filter units <NUM> and feeding networks <NUM> are not limited in this application. As shown in <FIG>, the antenna <NUM> provided in this embodiment of this application may include an antenna bay 30a and an antenna bay 30b. The antenna <NUM> here is merely an example. The antenna <NUM> may further include an antenna bay 30c, an antenna bay 30d, an antenna bay 30e, and so on. The antenna bays may be identical or different. This is not limited in this application. The antenna bays are spliceable. A plurality of antenna bays may be spliced based on requirements in different scenarios to form the antenna <NUM>.

Optionally, the signal processing module <NUM> includes two or more signal processing circuits <NUM>. For example, as shown in <FIG>, the signal processing module <NUM> includes two signal processing circuits <NUM>: the first signal processing circuit 22a and the second signal processing circuit 22b. The feeding network 21a included in the first signal processing circuit 22a is connected to the antenna <NUM>, and the filter unit 23a included in the first signal processing circuit 22a is connected to the radio frequency unit 10a. The feeding network 21b in the second signal processing circuit 22b is connected to the radio frequency unit 10b, and the filter unit 23b in the second signal processing circuit 22b is connected to the antenna <NUM>. The feeding network 21a and the feeding network 21b may be identical or different in terms of structures, and/or the filter unit 23a and the filter unit 23b may be identical or different in terms of structures. This is not limited in this application. For example, the filter unit 23a is a filter, and the filter unit 23b is a duplexer. Optionally, the antenna <NUM> shown in <FIG> includes an antenna bay 30a and an antenna bay 30b. The antenna bay 30a and the antenna bay 30b may be identical or different. In addition, the antenna <NUM> may further include other antenna bays. This is not in this application. The antenna bays are spliceable. A plurality of antenna bays may be spliced based on requirements in different scenarios to form the antenna <NUM>.

Optionally, when the signal processing module <NUM> includes a plurality of signal processing circuits <NUM>, different signal processing circuits may be identical or different in terms of component types and component arrangement sequences. This can be disposed as required. As shown in <FIG>, the signal processing module <NUM> includes four signal processing circuits <NUM>. A first signal processing circuit 22a includes only a feeding network 21a, and the feeding network 21a is separately connected to the antenna <NUM> and a radio frequency unit 10a. A second signal processing circuit 22b includes a feeding network 21b and a filter unit 23b. The feeding network 21b is connected to the antenna <NUM>, and the filter unit 23b is connected to a radio frequency unit 10b. A third signal processing circuit 22c includes two feeding networks 21c and one filter unit 23c that is located between the two feeding networks 21c. The two feeding networks 21c are separately connected to the antenna <NUM> and a radio frequency unit 10c. That the two feeding networks are both feeding networks 21c is merely an example. The two feeding networks may be designed based on an actual requirement. The two feeding networks may be identical or different in terms of structures. A fourth signal processing circuit 22d includes two filter units 23d and a feeding network 21d that is located between the two filter units 23d. The filter units 23d are separately connected to the antenna <NUM> and a radio frequency unit 10d. It should be understood that <FIG> only lists implementations of several different signal processing circuits. In actual application, different signal circuits may be selected based on a specific requirement, to process a signal. For example, a signal processing circuit in which a filter unit and feeding networks are connected in a one-to-many manner may be further included. Implementations are not limited to the examples in the accompanying drawings. Feeding networks <NUM> of different signal processing circuits <NUM> may be identical or different in terms of structures. Alternatively, filter units <NUM> of different signal processing circuits <NUM> may be identical or different in terms of structures. When a same signal processing circuit <NUM> includes a plurality of feeding networks <NUM>, the feeding networks <NUM> in the signal processing circuit <NUM> may be identical or different in terms of structures. Alternatively, when a same signal processing circuit <NUM> includes a plurality of filter units <NUM>, the filter units <NUM> in the signal processing circuit <NUM> may be identical or different in terms of structures. Optionally, as shown in <FIG>, the antenna <NUM> may include an antenna bay 30a, an antenna bay 30b, an antenna bay 30c, and an antenna bay 30d. The antenna <NUM> here is merely an example. The antenna <NUM> may further include other antenna bays. The antenna bays may be identical or different. This is not limited in this application. Optionally, the antenna bays are spliceable. A plurality of antenna bays may be spliced based on requirements in different scenarios to form the antenna <NUM>.

It can be learned that different signal processing modules <NUM> and a matching antenna <NUM> are selected based on an actual situation. The signal processing module <NUM> is connected to the antenna <NUM> and the radio frequency unit <NUM> in a pluggable manner. In this way, the signal processing module <NUM> can be replaced conveniently, to meet requirements in different scenarios. The antenna <NUM> includes a plurality of spliceable antenna bays, so that the antenna bays and the signal processing module <NUM> are matched to adapt to a required scenario. A spliceable antenna bay means that the antenna bay uses a modular design structure. The antenna bay can work independently as an antenna or a plurality of antenna bays can be spliced to work coordinately. Antennas corresponding to different signal processing modules may include different or identical antenna bays. In this way, the antenna bays can be flexibly spliced as required, to adapt to requirements in different scenarios. For example, referring to <FIG>, in a multiple-input multiple-output (Multiple-Input Multiple-Output, MIMO) scenario, antenna bays 30a can be spliced to form an N x M antenna, to adapt to a scenario in which a quantity of sending and receiving channels is increased. Each antenna bay 30a includes n x m antenna units <NUM>, where m, n, M, and N are all integers greater than or equal to <NUM>, m and n may be identical or different, and/or M and N may be identical or different. For ease of description, the antenna bays 30a in <FIG> include only one type of antenna units <NUM>. The antenna <NUM> is formed by splicing N x M antenna bays.

It can be learned that antenna bays can be spliced randomly to form an antenna, and a matching signal processing module is replaced at the same time, to meet requirements in different scenarios. It should be noted that the antenna bay 30a may include a plurality of types of different antenna units. <FIG> is merely an example. Antenna units and a periodic antenna bay arrangement manner shown in <FIG> are also merely examples. Antenna units and an arrangement manner of antenna bays are not limited in this application. A quantity of antenna units included in an antenna bay is not limited in this application, and a quantity of antenna bays included in an antenna is not limited either.

The antenna bay includes a plurality of antenna units of different types. For example, the antenna units of different types may work in different frequencies. For another example, the antenna units of different types may be antenna structures in different forms, for example, a die-casting antenna structure and a dielectric antenna structure. The antenna bay may be arranged in a spatially compact manner based on dimensional characteristics of different antenna units, so as to accommodate as many antenna units as possible in a unit volume, thereby saving space resources of the antenna bay. A plurality of antenna bays can be spliced to form different antennas, so as to adapt to different scenarios.

An antenna unit is a dual-band antenna unit, or a multi-band antenna unit. During specific disposition, a choice can be made as required. When the antenna bay includes a dual-band antenna unit or a multi-band antenna unit, a single antenna unit can process signals of two or more frequencies. Compared with an antenna bay that includes only single-band antenna units, the antenna bay in this application works in more diversified frequency bands. It can be understood that antennas in a unit volume have a stronger service capability. This is equivalent that the space resources of the antenna bay are further fully utilized.

The following describes the antenna bay and the antenna unit provided in the embodiments of this application with reference to a specific embodiment. As shown in <FIG>, an antenna <NUM> includes one antenna bay. The antenna bay includes three different types of antenna units: a first antenna unit <NUM>, a second antenna unit <NUM>, and a third antenna unit <NUM>. During specific disposition, the three different types of antenna units may be different types of antennas, or may be antennas of a same type, for example, all the three different types of antenna units are dipole antennas. It can be learned from <FIG> that heights of different antenna units are different, so that the antennas may be arranged in a more compact manner, and space resources of the antenna bay are fully utilized. It can be seen from <FIG> and a top view in <FIG> that the antenna units overlap in a same vertical space, so that space resources are fully utilized, the antennas is arranged in a more compact manner, and the antennas in a unit volume have a stronger service capability. As shown in <FIG>, the first antenna unit <NUM> located in the middle is the highest, and the second antenna unit <NUM> and the third antenna unit <NUM> that are relatively low in height are both located at two sides of the first antenna unit <NUM>. In this way, space is properly used, density of the antenna <NUM> is improved, and space occupied by the antenna <NUM> is reduced.

It can be learned that when a signal processing module <NUM> is replaced, different antenna bays of the antenna <NUM> can be connected as required, so as to adapt to different scenarios.

To further improve understanding of the antenna apparatus in this application, the following provides description with reference to a specific embodiment.

As shown in <FIG>, a signal processing module <NUM> of an antenna apparatus includes two processing circuits <NUM>.

One signal processing circuit <NUM> includes a duplexer and two feeding networks connected to the duplexer. In use, an <NUM> duplex filter is used to separately feed <NUM> uplink and downlink frequency band signals. 4T is used in the <NUM> downlink frequency band by using a high-gain feeding network, and 4R is used in the <NUM> uplink frequency band by using a feeding network <NUM>. "T" represents transmit (transmit), and "R" represents receive (receive). For example, 4T4R or 8T8R is well known to a person skilled in the art, and details are not described in this application again.

The other signal processing circuit <NUM> includes a filter and two feeding networks connected to the filter. Signals with a center frequency of <NUM> and signals with a center frequency of <NUM> are obtained from an antenna <NUM> through filtering and frequency division by using the filter. The signals with a center frequency of <NUM> are processed as 8T8R signals by using an 8T8R feeding network. The signals with a center frequency of <NUM> are processed into two 2T channels by using a two-beam feeding network. An <NUM> RRU excluding a diplexer may reduce the size, weight, and heat, and improve an RF indicator of the RRU.

The high-gain feeding network represents a relatively high gain of a feeding network, the 4R feeding network represents a <NUM>-receive feeding network, the 8T8R feeding network represents an <NUM>-transmit/<NUM>-receive feeding network, and the <NUM>-beam feeding network represents a feeding network in which an antenna can radiate two beams. The feeding network included in the signal processing module shown in <FIG> is merely an example, and a name of the feeding network is not limited in this application.

In addition, this application provides a signal processing module. The signal processing module is any one of the foregoing signal processing modules. The signal processing module includes at least a feeding network. That is, the signal processing module may at least be configured to feed an antenna, and may further include a filter unit, so that filtering may be performed on a signal received or sent by the antenna. The signal processing module provided in this application may further include another component, such as another passive component, for example, a combiner. Any combination of a feeding network and/or a component such as a filter into a pluggable module falls within the protection scope of this application. The signal processing module provided in this application may be in a form of a chip.

In addition, an embodiment of this application further provides a communications system. The communications system includes the antenna apparatus according to any one of the embodiments described above, and/or the signal processing module according to any one of the embodiments described above.

In the solutions of this application, by using the antenna apparatus and the communications system provided in this application, an integration degree of the signal processing module is improved, in particular, integration of passive components can be enhanced, and a pluggable manner is used to facilitate replacement. In addition, antenna bays included in an antenna may be spliceable, so that the antenna bays may be flexibly spliced based on requirements in different scenarios, to match different signal processing modules, so as to adapt to a required scenario. It can be learned that the antenna apparatus can use different signal processing modules flexibly and conveniently as required by an actual scenario, and flexibly adapt to different scenarios by splicing antenna bays.

The foregoing descriptions are merely specific implementations of this application, but are not intended to limit the protection scope of this application. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in this application shall fall within the protection scope of this application as well as it falls withint the terms of the appended claims.

Claim 1:
An antenna apparatus, comprising an antenna (<NUM>) and a signal processing module (<NUM>), wherein the signal processing module is pluggablely connected to the antenna;
the signal processing module comprises a signal processing circuit configured to correspondingly connect a radio frequency unit to the antenna; and
the signal processing circuit comprises a feeding network (<NUM>);
characterized in that the antenna comprises a plurality of spliceable antenna bays (30a, 30b, 30c, 30d);
wherein the antenna bay comprises a plurality of antenna units of different types; and
wherein each antenna unit is a dual-band antenna unit or a multi-band antenna unit.