Wireless signal transceiver device with dual-polarized antenna with at least two feed zones

A wireless signal transceiver device includes a dual-polarized antenna, a transmission circuit and a reception circuit. The dual-polarized antenna is used to transmit a first wireless signal and receive a second wireless signal at the same time. The dual-polarized antenna includes a first feed zone and a second feed zone. The first feed zone is used to receive a transmission signal, and the first wireless signal is related to the transmission signal. The second feed zone is used to output a reception signal, and the reception signal is related to the second wireless signal. The transmission circuit is used to generate the transmission signal. The reception circuit is used to generate a processing signal, and the processing signal is related to the reception signal.

TECHNICAL FIELD

The invention is related to a wireless signal transceiver device, and more particularly, a wireless signal transceiver device including a dual-polarized antenna with at least two feed zones.

BACKGROUND

In the field of wireless communications, dual-polarized antennas are widely used to perform wireless signal reception and transmission. However, in order to perform transmitting and receiving functions of a dual-polarized antenna, a common method is to receive an external wireless signal into a system using a reception antenna, and transmit a wireless signal outwards from the system to an external environment using a transmission antenna. Although such a structure can be used to transmit and receive wireless signals, two antennas such as the reception antenna and the transmission antenna are required. The two antennas occupy a large space, thereby it is difficult to reduce an overall size of the system.

SUMMARY

An embodiment provides a wireless signal transceiver device comprising a dual-polarized antenna, a transmission circuit and a reception circuit. The dual-polarized antenna is configured to transmit a first wireless signal and receive a second wireless signal substantially at the same time, wherein the first wireless signal is reflected by an object to generate the second wireless signal. The dual-polarized antenna comprises an antenna shape centroid; a first feed zone comprising a first zone shape centroid, and configured to receive a first transmission signal, wherein the first wireless signal is generated according to at least the first transmission signal; and a second feed zone comprising a second zone shape centroid, and configured to output a first reception signal generated according to the second wireless signal. A first direction defined from the first zone shape centroid to the antenna shape centroid is substantially orthogonal to a second direction defined from the second zone shape centroid to the antenna shape centroid. The transmission circuit is configured to generate the first transmission signal. The reception circuit is configured to generate a processing signal according to the first reception signal.

Another embodiment provides a wireless signal transceiver device comprising a dual-polarized antenna. The dual-polarized antenna is configured to transmit a first wireless signal and receive a second wireless signal substantially at the same time, and comprises an antenna shape centroid; a first feed zone comprising a first zone shape centroid, and configured to receive a first transmission signal, wherein the first wireless signal is generated according to at least the first transmission signal; and a second feed zone comprising a second zone shape centroid, and configured to output a first reception signal generated according to the second wireless signal. A first direction defined from the first zone shape centroid to the antenna shape centroid is substantially orthogonal to a second direction defined from the second zone shape centroid to the antenna shape centroid.

Another embodiment provides a wireless signal transceiver device comprising a first dual-polarized antenna, a first transmission circuit, a first reception circuit, a second dual-polarized antenna, a second transmission circuit and a second reception circuit. The first dual-polarized antenna is configured to transmit a first wireless signal and receive a second wireless signal substantially at the same time, and comprises an first antenna shape centroid; a first feed zone comprising a first zone shape centroid and configured to receive a first transmission signal wherein the first wireless signal is generated according to at least the first transmission signal; and a second feed zone comprising a second zone shape centroid and configured to output a first reception signal generated according to the second wireless signal. The first transmission circuit is configured to generate the first transmission signal. The first reception circuit is configured to generate a first processing signal related to the first reception signal. The second dual-polarized antenna is configured to transmit the second wireless signal and receive the first wireless signal substantially at the same time, and comprises an second antenna shape centroid; a third feed zone comprising a third zone shape centroid and configured to receive a second transmission signal wherein the second wireless signal is generated according to at least the second transmission signal; and a fourth feed zone comprising a fourth zone shape centroid and configured to output a second reception signal generated according to the first wireless signal. The second transmission circuit is configured to generate the second transmission signal. The second reception circuit is configured to generate a second processing signal related to the second reception signal. A first direction defined from the first zone shape centroid to the first antenna shape centroid is substantially orthogonal to a second direction defined from the second zone shape centroid to the first antenna shape centroid; a third direction defined from the third zone shape centroid to the second antenna shape centroid is substantially orthogonal to a fourth direction defined from the fourth zone shape centroid to the second antenna shape centroid; the first direction is substantially orthogonal to the third direction; and the second direction is substantially orthogonal to the fourth direction.

DETAILED DESCRIPTION

The dual-polarized antenna may have a rectangular, square, circular or oval shape. The mentioned oval shape may be an elliptical shape of an accurate mathematic definition, an oval shape similar to an elliptical shape, a round shape or an oblong shape. In practice, related engineering simulations and device fine-tuning may be used to optimize the effect of transceiving signals.FIG. 1illustrates a wireless signal transceiver device100according to an embodiment. The wireless signal transceiver device100may include a dual-polarized antenna AN, a transmission circuit110and a reception circuit120. The dual-polarized antenna AN may be used to transmit a first wireless signal STX and receive a second wireless signal SRX substantially at the same time. The first wireless signal STX may be reflected by an object to generate the second wireless signal SRX. In an embodiment, the first wireless signal STX and the second wireless signal SRX may be radio frequency (RF) signals. During a time interval, since the first wireless signal STX is constantly reflected by an object, the second wireless signal SRX may be constantly received by the dual-polarized antenna AN, so the dual-polarized antenna AN may constantly transmit the first wireless signal STX and also receive the second wireless signal SRX substantially at the same time. In an embodiment, the waveform of the first wireless signal STX may be fixed or varied by time.

The dual-polarized antenna AN may include a feed zone FZ1and a feed zone FZ2. The dual-polarized antenna AN may have an antenna shape centroid CT. The feed zone FZ1may have a zone shape centroid FZC1, and the feed zone FZ2may have a zone shape centroid FZC2. A direction DR1may be defined from the zone shape centroid FZC1to the antenna shape centroid CT. A direction DR2may be defined from the zone shape centroid FZC2to the antenna shape centroid CT. The direction DR1may be substantially orthogonal to the direction DR2.

According to embodiments ofFIG. 1toFIG. 10andFIG. 13, the dual-polarized antenna AN, AN1, AN2may have a rectangular shape as an example. Hence, the feed zone FZ1of the dual-polarized antenna AN may include a first side D1of the rectangle. The feed zone FZ2of the dual-polarized antenna AN may include a second side D2of the rectangle. The first side D1may be substantially orthogonal to the second side D2. The zone shape centroids FZC1and FZC2may be respectively at the middle points of the first side D1and the second side D2. According to the embodiment, the dual-polarized antenna AN may comprise a first antenna surface and a second antenna surface opposite to one another, the first antenna surface and the second antenna surface are separated by a thickness, the first antenna surface or the second antenna surface is coplanar with a reference plane. That is, the dual-polarized antenna AN may be a rectangular antenna with a thickness. However, as described above, the dual-polarized antenna AN may be not limited to a rectangular shape. InFIG. 11andFIG. 12, embodiments of dual-polarized antennas ANB with another shape are described.

InFIG. 1, the first side D1is used to receive a first transmission signal ST1, and the first wireless signal STX may relate to the first transmission signal ST1. The first side D1and the second side D2may be orthogonal to one another. According to embodiments, the first side D1and the second side D2may be adjacent to one another and have substantially the same length. The dual-polarized antenna AN may have a square shape.

According to the embodiment, a polarity of a wireless signal transmitted or received by the dual-polarized antenna AN may be orthogonal to a direction of an induced current. Hence, the first wireless signal STX and the second wireless signal SRX may hardly interfere with one another on the dual-polarized antenna AN. The length of each of the first side D1and the second side D2may be approximately half a wavelength of the first wireless signal STX or the second wireless signal SRX.

The second side D2may be used to transmit the first reception signal SR1related to the second wireless signal SRX. The transmission circuit110and the reception circuit120may be coupled to the dual-polarized antenna AN or substantially insulated from the dual-polarized antenna AN. In an embodiment, the transmission circuit110and the reception circuit120may be coupled to the dual-polarized antenna AN, the transmission circuit110is coupled to the first side D1and used to generate the first transmission signal ST1, and the reception circuit120is coupled to the second side D2and used to generate a processing signal SA related to the first reception signal SR1. According to the embodiment, the first wireless signal STX may be generated according to at least the first transmission signal ST1, and the first reception signal SR1may be generated according to the second wireless signal SRX.

FIG. 2illustrates a wireless signal transceiver device200according to another embodiment. The wireless signal transceiver device200may be an embodiment of the wireless signal transceiver device100. As shown inFIG. 2, the transmission circuit110may include a first amplifier A1. The first transmission signal ST1may be corresponding to an output signal SO outputted by the first amplifier A1. The reception circuit120may include a second amplifier A2, and the second amplifier A2may be used to amplify the first reception signal SR1and output the processing signal SA. According to the embodiment, the output signal SO may include a single signal or a pair of signals having a specific phase difference. The first amplifier A1may be a power amplifier, and the second amplifier A2may be a low noise amplifier (LNA).

FIG. 3illustrates a wireless signal transceiver device300according to another embodiment. The wireless signal transceiver device300may be an embodiment of the wireless signal transceiver device100. As shown inFIG. 3, the transmission circuit110may include a combiner115and a first amplifier A31. The combiner115may be coupled between the first side D1of the dual-polarized antenna AN and the first amplifier A31, and used to receive a first output signal SO1and a second output signal SO2outputted from the first amplifier A31, generate the first transmission signal ST1by combining the first output signal SO1and the second output signal SO2, and output the first transmission signal ST1to the first side D1. InFIG. 3, the first amplifier A31may have two output terminals for outputting the first output signal SO1and the second output signal SO2which may form a pair of differential signals.

FIG. 4illustrates a wireless signal transceiver device400according to another embodiment. The wireless signal transceiver device400may be an embodiment of the wireless signal transceiver device100. As shown inFIG. 4, the reception circuit120may include a coupler125and a second amplifier A42. The coupler125may be coupled between the second side D2of the dual-polarized antenna AN and the second amplifier A42, and used to receive the first reception signal SR1, convert the first reception signal SR1to a first input signal SI1and a second input signal SI2, and transmit the first input signal SI1and the second input signal SI2to the second amplifier A42. As shown inFIG. 4, the second amplifier A42may be used to generate the processing signal SA according to the first input signal SI1and the second input signal SI2, and the first input signal SI1and the second input signal SI2may form a pair of differential signals.

FIG. 5illustrates a wireless signal transceiver device500according to another embodiment. The wireless signal transceiver device500may be an embodiment of the wireless signal transceiver device100. The transmission circuit110inFIG. 5may include a combiner115and a first amplifier A31as shown inFIG. 3, and the reception circuit120ofFIG. 5may include a coupler125and a second amplifier A42as shown inFIG. 4. The related operations are not described repeatedly.

FIG. 6illustrates a wireless signal transceiver device600according to another embodiment. In this embodiment, the transmission circuit110and the reception circuit120may be substantially insulated from the dual-polarized antenna AN. As shown inFIG. 6, the wireless signal transceiver device600may include feed elements F1and F2. Each of the feed elements F1and F2may have a T shape. For example, the feed element F1may have a strip conductor FlA and a conductive line FIB. Similarly, the feed element F2may have the two portions. The feed element F1may be disposed corresponding to the first side D1and used to receive the first transmission signal ST1generated by the transmission circuit110and feed the first transmission signal ST1to the dual-polarized antenna AN through electromagnetic induction. The feed element F1and the transmission circuit110may be substantially insulated from the dual-polarized antenna AN. The feed element F2may be disposed corresponding to the second side D2, and used to be fed with the first reception signal SR1from the dual-polarized antenna AN through electromagnetic induction and transmit the first reception signal SR1to the reception circuit120. The feed element F2and reception circuit120may be substantially insulated from the dual-polarized antenna AN.

According to embodiments, the feed element F1may be (but not limited to) a T shape feed element, and the strip conductor F1A is formed as a straight strip disposed along an edge of the dual-polarized antenna AN correspondingly. The strip conductor F1A and the first side D1of the dual-polarized antenna AN may be in parallel and be separated by a first distance L1. The strip conductor F1A may have a length 0.5 to 1 times a length of the first side D1. The first distance L1may be related to impedance corresponding to the first transmission signal ST1. The feed element F1may receive the first transmission signal ST1through a middle position of the strip conductor F1A and the conductive line FIB. The feed element F2may be (but not limited to) a T shape feed element. The strip conductor of the feed element F2and the second side D2of the dual-polarized antenna AN may be in parallel and be separated by a second distance L2. The strip conductor of the feed element F2may have a length 0.5 to 1 times a length of the second side D2. The second distance L2may be related to impedance corresponding to the first reception signal SR1. The feed element F2may transmit the first reception signal SR1through a middle position of the strip conductor and the conductive line of the feed element F2.

FIG. 7illustrates a wireless signal transceiver device700according to another embodiment. The wireless signal transceiver device700may include a dual-polarized antenna AN, a transmission circuit710and a reception circuit720. In addition to the first side D1and the second side D2described above, the dual-polarized antenna AN may further include a third side D3opposite to the first side D1. The third side D3may be substantially orthogonal to the second side D2, coupled to the transmission circuit710, and used to receive a second transmission signal ST2. The first wireless signal STX may be generated according to the first transmission signal ST1and the second transmission signal ST2. The transmission circuit710may be used to transmit the first transmission signal ST1and the second transmission signal ST2. As shown inFIG. 7, the dual-polarized antenna AN may further include a fourth side D4opposite to the second side D2. The fourth side D4may be substantially orthogonal to the first side D1, coupled to the reception circuit720, and used to transmit a second reception signal SR2. The first reception signal SR1and the second reception signal SR2may be generated according to the second wireless signal SRX. The reception circuit720may be used to receive the first reception signal SR1and the second reception signal SR2and generate the processing signal SA according to the first reception signal SR1and the second reception signal SR2. The first transmission signal ST1and the second transmission signal ST2may form a pair of differential signals. The first reception signal SR1and the second reception signal SR2may forma pair of differential signals. The relationship among the third side D3, the fourth side D4, feed zones corresponding to the sides D3and D4, and the antenna shape centroid CT may be similar to the relationship among the first side D1, the second side D2, the feed zones FZ1and FZ2, and the antenna shape centroid CT shown inFIG. 1, so it is not described repeatedly. However, a third direction defined from a third zone shape centroid corresponding to the third side D3to the antenna shape centroid CT may be opposite to the first direction DR1. A fourth direction defined from a fourth zone shape centroid corresponding to the fourth side D4to the antenna shape centroid CT may be opposite to the second direction DR2.

FIG. 8illustrates a wireless signal transceiver device800according to another embodiment. Similarities betweenFIG. 8andFIG. 7are not described repeatedly. As shown inFIG. 8, the wireless signal transceiver device800may include feed elements F1to F4. LikeFIG. 1andFIG. 6, the dual-polarized antenna AN may have four feed zones FZ1to FZ4respectively including the first side D1to the fourth side D4. The feed elements F1and F2may be as described above. The third feed element F3may be similar to the feed element F1and be disposed corresponding to the third side D3of the dual-polarized antenna AN for receiving the second transmission signal ST2and feeding the second transmission signal ST2to the dual-polarized antenna AN through electromagnetic induction. The feed element F3may be substantially insulated from the dual-polarized antenna AN, and a distance between the feed element F3and the dual-bipolarized antenna AN may be related to impedance corresponding to the second transmission signal ST2. The fourth feed element F4may be similar to the feed element F2and be disposed corresponding to the fourth side D4of the dual-polarized antenna AN for being fed with the second reception signal SR2through electromagnetic induction and transmitting the second reception signal SR2to the reception circuit720. The feed element F4may be substantially insulated from the dual-polarized antenna AN, and a distance between the feed element F4and the dual-bipolarized antenna AN may be related to impedance corresponding to the second reception signal SR2. The first transmission signal ST1and the second transmission signal ST2may form a pair of differential signals, and the first reception signal SR1and the second reception signal SR2may forma pair of differential signals. The relationship among the third side D3, the fourth side D4, the feed zones FZ3and FZ4corresponding to the sides D3and D4, and the antenna shape centroid CT may be similar to the relationship among the first side D1, the second side D2, the corresponding feed zones FZ1and FZ2, and the antenna shape centroid CT shown inFIG. 1, so it is not described repeatedly. However, a third direction defined from a third zone shape centroid of the third feed zone FZ3to the antenna shape centroid CT may be opposite to the first direction DR1. A fourth direction defined from a fourth zone shape centroid of the fourth feed zone FZ4to the antenna shape centroid CT may be opposite to the second direction DR2.

FIG. 9illustrates a wireless signal transceiver device900according to another embodiment. As shown inFIG. 9, the first wireless signal STX may be reflected by an object OBJ to generate the second wireless signal SRX. The transmission circuit110may be used to generate the first transmission signal ST1according to an input signal SI. The wireless signal transceiver device900may further include a processing unit PU. The processing unit PU may be coupled to the transmission circuit110and the reception circuit120and used to generate spatial information of the object OBJ according to the processing signal SA and the input signal SI. In other words, the wireless signal transceiver device900may be used to detect the spatial information of the object OBJ such as at least one of a distance between the wireless signal transceiver device900and the object OBJ, a moving speed of the object OBJ, a moving angle of the object OBJ and time of detecting the object OBJ.

FIG. 10illustrates a wireless signal transceiver device1000according to another embodiment. The wireless signal transceiver device1000may include two dual-polarized antennas AN1and AN2, two transmission circuits1010and1030, and two reception circuits1020and1040.

The dual-polarized antenna AN1may be used to transmit a first wireless signal SX1and receive a second wireless signal SX2substantially at the same time. Each of the dual-polarized antennas AN1and AN2may be designed to be similar to the dual-polarized antennas AN ofFIG. 1. The dual-polarized antenna AN1may include a first feed zone, a second feed zone and a first antenna shape centroid. The first feed zone may include a first side D11and a first zone shape centroid, and the second feed zone may include a second side D12and a second zone shape centroid. A first direction defined from the first zone shape centroid to the first antenna shape centroid may be substantially orthogonal to a second direction defined from the second zone shape centroid to the first antenna shape centroid. The first side D11may be used to receive a first transmission signal ST1A where the first wireless signal SX1is related to the first transmission signal ST1A. The second side D12may be used to transmit the first reception signal SR1A related to the second wireless signal SX2. The transmission circuit1010may be coupled to the first side D11of the dual-polarized antenna AN1and used to generate the first transmission signal ST1A. The reception circuit1020may be coupled to the second side D12of the dual-polarized antenna AN1and used to generate a processing signal SA1related to the first reception signal SR1A.

The dual-polarized antenna AN2may be used to transmit the second wireless signal SX2and receive the first wireless signal SX1substantially at the same time. Like the dual-polarized antenna AN1, the dual-polarized antenna AN2may include a first feed zone, a second feed zone and a second antenna shape centroid. The first feed zone may include a first side D21and a first zone shape centroid, and the second feed zone may include a second side D22and a second zone shape centroid. A third direction defined from the first zone shape centroid of the dual-polarized antenna AN2to the second antenna shape centroid may be substantially orthogonal to a fourth direction defined from the second zone shape centroid of the dual-polarized antenna AN2to the second antenna shape centroid. The first side D21may be used to receive a second transmission signal ST2A where the second wireless signal SX2is related to the second transmission signal ST2A. The second side D22may be used to transmit the second reception signal SR2A related to the first wireless signal SX1. The transmission circuit1030may be coupled to the first side D21and used to generate the second transmission signal ST2A. The reception circuit1040may be coupled to the second side D22and used to generate a processing signal SA2related to the second reception signal SR2A. As shown inFIG. 10, The first direction may be substantially orthogonal to the third direction, and the second direction may be substantially orthogonal to the fourth direction.

According to embodiments, the first wireless signal SX1and the second wireless signal SX2may be radio frequency signals. During a time interval, since the first wireless signal SX1may be constantly transmitted by the dual-polarized antenna AN1, the first wireless signal SX1may be constantly received by the dual-polarized antenna AN2; and since the second wireless signal SX2may be constantly transmitted by the dual-polarized antenna AN2, the second wireless signal SX2may be constantly received by the dual-polarized antenna AN1. In other words, the dual-polarized antenna AN1may be used to constantly transmit the first wireless signal SX1and receive the second wireless signal SX2substantially at the same time. Conversely, the dual-polarized antenna AN2may be used to constantly transmit the second wireless signal SX2and receive the first wireless signal SX1substantially at the same time. According to embodiments, the waveforms of the first wireless signals SX1and the second wireless signal SX2may be fixed or varied by time, and the waveforms may be determined according to data included in the processing signals SA1and SA2.

According to an embodiment, the dual-polarized antennas AN1and AN2may be separated by a distance L10. The first side D11of the dual-polarized antenna AN1may be orthogonal to the second side D12of the dual-polarized antenna AN1. The first side D11of the dual-polarized antenna AN1may be orthogonal to the first side D21of the dual-polarized antenna AN2. The first side D21of the dual-polarized antenna AN2may be orthogonal to the second side D22of the dual-polarized antenna AN2.

According to embodiments, the first side D11and the second side D12of the dual-polarized antenna AN1may be adjacent to one another. The first side D21and the second side D22of the dual-polarized antenna AN2may be adjacent to one another.

As shown inFIG. 10, wireless data communications may be performed by means of the wireless signal transceiver device1000. For example, when the distance L10is 100 meters, wireless data communications of 100 meters between the dual-polarized antennas AN1and AN2may be performed.

According to embodiments, the first wireless signal SX1may be generated according to at least the first transmission signal ST1A. The first reception signal SR1A may be generated according to the second wireless signal SX2. The second wireless signal SX2may be generated according to at least the second transmission signal ST2A. The second reception signal SR2A may be generated according to the first wireless signal SX1.

According to embodiments, the first side D11of the dual-polarized antenna AN1and the second side D22of the dual-polarized antenna AN2may be dual-polarized antenna portions corresponding to one another when transceiving wireless signals. The first side D21of the dual-polarized antenna AN2and the second side D12of the dual-polarized antenna AN1may be dual-polarized antenna portions corresponding to one another when transceiving wireless signals. Hence, the first side D11and the second side D22may have a substantially same length, and be in parallel/overlapped in projection with one another. The first side D21and the second side D12may have a substantially same length, and be in parallel/overlapped in projection with one another.

According to embodiments, the first side D11and the second side D12may have a substantial same length. For example, because lengths of sides of a dual-polarized antenna for feeding a signal may relate to a frequency of the signal, the first side D11and the second side D12may be designed to have a substantial same length when using a fixed frequency to perform time-division data transmission.

According to another embodiment, the first side D11and the second side D12of the dual-polarized antenna AN1may have different lengths. For example, when using different frequencies to perform time-division data transmission, the first side D11and the second side D12may be designed to have different lengths. According to another embodiment, the first side D11of the dual-polarized antenna AN1and the second side D22of the dual-polarized antenna AN2may have substantially the same first length, the second side D12of the dual-polarized antenna AN1and the first side D21of the dual-polarized antenna AN2may have substantially the same second length, and the first length is different with the second length.

According to embodiments, each of the dual-polarized antennas AN1and AN2may have a square or rectangular shape. A feed element may be disposed corresponding to each side of the dual-polarized antennas AN1and AN2as shown inFIG. 6andFIG. 8to feed a signal to or from an antenna through electromagnetic induction.

According to embodiments, the dual-polarized antennas AN1and AN2may be used to transmit or receive a pair of differential signals as shown inFIG. 6andFIG. 8.

InFIG. 1toFIG. 10andFIG. 13, each of the dual-polarized antennas has a rectangular shape.FIG. 1toFIG. 10andFIG. 13are merely examples, and a dual-polarized antenna with an oval shape as shown inFIG. 11may be coupled and configured as shown inFIG. 1toFIG. 10andFIG. 13.

FIG. 11illustrates a portion of a wireless signal transceiver device according to an embodiment. InFIG. 11, the transmission circuit110and the reception circuit120ofFIG. 1are omitted, and a dual-polarized antenna ANB and feed elements F111and F112are illustrated. The feed elements F111and F112may be disposed corresponding to feed zones FZ111and FZ112. The dual-polarized antenna ANB may have an oval shape and be different from the rectangular antennas inFIG. 1toFIG. 10andFIG. 13. The feed element F111may include a strip conductor F111A and a conductive line F111B. The strip conductor F111A may be disposed along an edge of the dual-polarized antenna ANB, and the strip conductor F111A and the edge of the dual-polarized antenna ANB may be in parallel. In other words, when the dual-polarized antenna ANB have an oval shape or a circle shape, the strip conductor F111A may have an arc shape. Likewise, the feed element F112may include a strip conductor F112A and a conductive line F112B with a shape described above. The strip conductor F111A and the edge of the dual-polarized antenna ANB may be separated by a distance DT1. The distance DT1may be related to impedance corresponding to a transmitted signal. When the dual-polarized antenna ANB is applied in a scenario ofFIG. 6as an example, the conductive line F111B may be coupled to a middle position of the strip conductor F111A to receive the first transmission signal ST1. Similarly, the conductive line F112B of the feed element F112may be used to transmit the first reception signal SR1. LikeFIG. 1, the dual-polarized antenna ANB inFIG. 11may have feed zones FZ111and FZ112, and an antenna shape centroid CT. Each of the feed zones FZ111and FZ112may have a zone shape centroid. A first direction DR1may be defined from the zone shape centroid of the feed zone FZ111to the antenna shape centroid CT, and a second direction DR2may be defined from the zone shape centroid of the feed zone FZ112to the antenna shape centroid CT. The first direction DR1may be orthogonal to the second direction DR2. An angle AA1formed with the feed zone FZ111and the antenna shape centroid CT may be approximately in a range of 22.5 to 120 degrees. An angle AA2formed with the feed zone FZ112and the antenna shape centroid CT may be approximately in a range of 22.5 to 120 degrees. A sum of the angles AA1and AA2may be less than or equal to 180 degrees.

The dual-polarized antenna ANB may have a first antenna surface and a second antenna surface opposite to one another, the first antenna surface and the second antenna surface are separated by a thickness. The first antenna surface or the second antenna surface may be coplanar with a reference plane. Projection areas of the strip conductors F111A and F112A onto the reference plane may be outside a projection area of the dual-polarized antenna ANB onto the reference plane without overlapping. The strip conductor F111A, the conductive line F111B and the reference plane may be coplanar with one another. The strip conductor F111A and the edge of the dual-polarized antenna ANB may be in parallel and be separated by a distance DT1. The strip conductor F112A and the conductive line F112B may be similar to the strip conductor F111A and the conductive line F112B, and the strip conductor F112A and the edge of the dual-polarized antenna ANB may be in parallel and be separated by a distance DT2. For example, the dual-polarized antenna ANB may be formed on a metal layer of a circuit board such as (but not limited to) a printed circuit board, and the feed elements may be formed on a same metal layer. According to other embodiments, an antenna and feed elements may be formed on different metal layers to be disposed asFIG. 11.

FIG. 12illustrates a portion of a wireless signal transceiver device according to an embodiment. LikeFIG. 11,FIG. 12merely illustrates the dual-polarized antenna ANB and the feed elements F111A and F111B. However, inFIG. 12, projection areas of the strip conductors F111A and F112A onto a reference plane may be within a projection area of the dual-polarized antenna ANB onto the reference plane, so the projection areas of the strip conductors F111A and F112A may overlap the projection area of the dual-polarized antenna ANB in a vertical direction. The strip conductor and the conductive line of each of the feed elements F111and F112may be coplanar with one another. The strip conductor may be on a plane which is parallel with the reference plane and is separated from the reference plane by a vertical distance. For example, the dual-polarized antenna ANB may be formed on a metal layer of a circuit board such as (but not limited to) a printed circuit board, and the feed elements may be formed on another metal layer to form the antenna structure shown inFIG. 12. The two metal layers may be separated by the vertical distance. The relationship among the feed zones FZ111and FZ112and the antenna shape centroid CT inFIG. 12may be similar to the embodiment ofFIG. 11, so it is not described repeatedly.

FIG. 11andFIG. 12illustrate examples with two feed elements, but it is allowed to respectively dispose four feed elements corresponding to four feed zones of an oval dual-polarized antenna as shown inFIG. 8. The similarities of application are not described repeatedly.

FIG. 13illustrates a wireless signal transceiver device1300according to another embodiment. The wireless signal transceiver device1300may be an embodiment of the wireless signal transceiver device100. As shown inFIG. 13, a main difference between the wireless signal transceiver devices100and1300may be that the wireless signal transceiver device1300further includes a dual-polarized antenna AN2. Both the dual-polarized antennas AN2and AN1may be coupled to the transmission circuit110and the reception circuit120, and be used to receive the first transmission signal ST1and transmit the second wireless signal SRX (not shown inFIG. 13) substantially at the same time. The dual-polarized antennas AN2and AN1may form a 1×2 antenna matrix. According to another embodiment, one or more additional dual-polarized antennas may be coupled to the transmission circuit110and the reception circuit120to form an M×N antenna matrix with the dual-polarized antennas AN2and AN1. The M×N antenna matrix may be used for receiving signals (e.g. the first transmission signal ST1) from a transmission circuit (e.g.110) and outputting signals (e.g. first reception signal SR1) to a reception circuit (e.g.120). The parameters M and N may be positive integers larger than zero. For example, in an M×N antenna matrix, one of M and N may be 1, and another may be an integer larger than one. Hence, the M×N antenna matrix may be a 1×N antenna matrix or an M×1 antenna matrix. In another example, both of M and N may be integers larger than one.

By means of a wireless signal transceiver device provided by an embodiment, a dual-polarized antenna which is a single radiator may be used to transceive signals. Applications of object detection or long distance signal transmission may therefore be practiced. In addition, an external coupling element or duplexer between a dual-polarized antenna and an amplifier circuit could be omitted according to embodiments. It is beneficial for reducing size of a dual-polarized antenna and a related system and simplifying a structure of the system.