Wireless signal transmitting and receiving device

Abstract

The wireless signal transmitting and receiving device comprises an antenna, a transmitting circuit and a processing unit. The transmitting circuit generates a transmitting signal according to an input signal. The antenna receives a second wireless signal when transmitting a first wireless signal according to the transmitting signal, and outputs a receiving signal according to the second wireless signal and the transmitting signal. The second wireless signal includes a wireless signal reflected from the object. The processing unit receives the receiving signal from the antenna and generates spatial information of the object according to the receiving signal and not receiving the input signal.

Description

Technical Field

[0001] The present invention relates to a wireless signal transceiver device, in particular to a wireless signal transceiver device comprising an antenna and the antenna has two feeding areas. Background Art

[0002] In the field of wireless communications, it is common to use antennas to perform the reception and transmission of wireless signals. However, in order to perform the transmission and reception functions of the antenna, a common method is to use a receiving antenna to receive external wireless signals into the system, and use a transmitting antenna to send wireless signals from the system to the outside. Although this architecture can perform the transmission and reception of wireless signals, since two antennas, namely a receiving antenna and a transmitting antenna, are required, the volume occupied by the antenna is relatively large, making it difficult to reduce the volume of the overall system. Summary of the invention

[0003] The embodiment provides a wireless signal transceiver, comprising a transmitting circuit, an antenna and a processing unit. The transmitting circuit is used to generate a transmitting signal according to an input signal. The antenna is used to transmit a first wireless signal according to the transmitting signal, receive a second wireless signal when transmitting the first wireless signal, the second wireless signal includes a wireless signal reflected from an object, and output a receiving signal according to the second wireless signal and the transmitting signal. The processing unit is used to receive a receiving signal from the antenna, and generate spatial information of the object according to the receiving signal and without receiving the input signal.

[0004] The embodiment provides a wireless signal transceiver, comprising a transmitting circuit, an antenna, a sensing circuit and a processing unit. The transmitting circuit is used to generate a transmitting signal. The antenna is used to transmit a first wireless signal according to the transmitting signal, and when transmitting the first wireless signal, receives a second wireless signal, wherein the second wireless signal comprises a wireless signal reflected from an object. The sensing circuit is used to receive the transmitting signal and a receiving signal from the antenna, the sensing circuit comprises a receiving circuit for receiving the receiving signal, and the antenna outputs the receiving signal according to the second wireless signal. The processing unit is used to generate spatial information of the object according to a processed signal output by the sensing circuit.

[0005] The embodiment provides a wireless signal transceiver, comprising a transmitting circuit, an antenna and a processing unit. The transmitting circuit is used to generate a transmitting signal. The antenna is used to transmit a first wireless signal according to the transmitting signal, and when transmitting the first wireless signal, receive a second wireless signal, the second wireless signal comprising a wireless signal reflected from an object, and output a receiving signal according to the second wireless signal and the transmitting signal. The processing unit is used to receive a receiving signal from the antenna, and generate spatial information of the object according to the receiving signal. An isolation between the transmitting signal and the receiving signal is not greater than 60 decibels. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figures 1 to 14 Schematic diagram of a wireless signal transceiver in different embodiments.

[0007] Fig.15 for Fig.14 The isolation between the antenna receiving and transmitting signals is Fig.14 Correlation graph for the angles shown.

[0008] Fig.16 FIG. 4 is a schematic diagram of a wireless signal transceiver in an embodiment.

[0009] Figures 17 to 48 Schematic diagram of antennas in different embodiments.

[0010] Fig.49 2 is a waveform diagram of return loss and isolation when the angle formed by the two directions is substantially 90 degrees in an embodiment.

[0011] Fig.50 In the embodiment, the acute angle formed by the two directions is substantially between 45 degrees and 90 degrees, which is a waveform diagram of return loss and isolation.

[0012] Figure 51 to Figure 5 6 is a schematic diagram of a wireless signal transceiver in a different embodiment.

[0013] Figure 57 to Figure 58 Schematic diagram of the layout of the wireless signal transceiver in different embodiments.

[0014] Fig.59 Schematic diagram of a wireless signal transceiver in different embodiments.

[0015] Explanation of symbols:

[0016] 100,200,300,400,500,600,700,800,900,1000,1300,4800,4900,5000,5100: Wireless signal transceiver

[0017] 110,710,1010,1030: Transmitter circuit

[0018] 115: Combiner

[0019] 120,720,1020,1040: receiving circuit

[0020] 125: Coupler

[0021] 140: Combined Node

[0022] 150: Sensing element

[0023] 162: Envelope detection circuit

[0024] 1622: Rectifier

[0025] 1624:Low-pass filter

[0026] 164: Motion Detector

[0027] 310: Circuit

[0028] 5200,5300,5302,5400,5500,5600: transceiver

[0029] 5410,5420,5430,5560,5580: Matching network

[0030] 5405,5407,5510,5520:Port

[0031] a1,a2,b1: curve

[0032] A1, A31, A2, A42: Amplifier

[0033] AA1,AA2,θ,θ1,θ2: Angle

[0034] AN,AN1,AN2,ANA,ANB:Antenna

[0035] APA: Additional Sections

[0036] CL: Conductive Thread

[0037] CPW: Coplanar Waveguide

[0038] CT: Antenna Shape Center

[0039] CT0: Shape Center

[0040] D1,D11,D21,D2,D12,D22,D3,D4: Side

[0041] 111,112,DR10,DR20: Reference lines

[0042] DR1,DR2:Direction

[0043] E1, E2: Radiated electric field

[0044] F1, F2, F3, F4, F111, F112, FE: Feeding elements

[0045] F1A, F111A, F112A: Strip conductor

[0046] F1B, F111B, F112B: Transmission lines

[0047] fa1,fa2,fb:frequency

[0048] FZ1, FZ2, FZ3, FZ4, FZ111, FZ112: Feeder area

[0049] FP1, FP2: Feed point

[0050] FZC1, FZC2: Area Shape Center

[0051] GND: ground terminal

[0052] GP: Gap

[0053] HL,H1,H2: Holes

[0054] L1,L2,L10,DT:Distance

[0055] LC1, LC2, LC3: Conductive layer

[0056] LI, LI1, LI2: Insulation layer

[0057] MP1,MP2: midpoint

[0058] OBJ: Object

[0059] PA:Patch

[0060] PA1,PA2,PA3:Partial

[0061] PB, PB1, PB2: needle body

[0062] PU: Processing Unit

[0063] SA: Processing Signals

[0064] SC: Induction Circuit

[0065] SF: Spatial Information

[0066] SI1, SI2, SI: input signal

[0067] SL,SL1,SL2,SL3,SL4,SSL1,SSL2: slotted

[0068] SO,SO1,SO2: output signal

[0069] SR1,SR1A,SR2A,SR2: Receive signal

[0070] SR1': Signal

[0071] ST1, ST1A, ST2A, ST2: Transmit signal

[0072] STX,SX1,SRX,SX2: Wireless signal

[0073] TP: Conductive Top DETAILED DESCRIPTION

[0074] The antenna described herein may be a dual-polarized antenna, and the shape of its cross section or cross section may be rectangular (e.g., rectangular, square), circular, elliptical, etc. The ellipse described herein may be an ellipse precisely defined mathematically, but may also be an oval, round, or oblong similar to an ellipse. Related engineering simulations and device fine-tuning may be used to optimize the signal transmission and reception effect in practice. Figure 1 Schematic diagram of a wireless signal transceiver 100 of an embodiment. The wireless signal transceiver 100 may include an antenna AN, a transmitting circuit 110 and a receiving circuit 120. The antenna AN may be used to transmit a wireless signal STX and substantially simultaneously receive a wireless signal SRX. The wireless signal STX is used to generate a wireless signal SRX after being reflected by an object. In one embodiment, the wireless signal STX and the wireless signal SRX are, for example, radio frequency signals. Over a period of time, since the wireless signal STX is continuously transmitted by the antenna AN and reflected by an object, the wireless signal SRX is also continuously received by the antenna AN, that is, when the antenna AN is continuously transmitting the wireless signal STX, it substantially simultaneously and continuously receives the wireless signal SRX. In one embodiment, the waveform of the wireless signal STX may be fixed or may vary over time.

[0075] The antenna AN may include feed zones FZ1 and FZ2. The antenna AN may have an antenna shape center CT, the feed zone FZ1 has a zone shape center FZC1, the feed zone FZ2 has a zone shape center FZC2, the line connecting the zone shape center FZC1 and the antenna shape center CT forms a direction DR1, the line connecting the zone shape center FZC2 and the antenna shape center CT forms a direction DR2, and the direction DR1 is substantially orthogonal to the direction DR2.

[0076] At Figures 1 to 10 ,and Fig.13In the embodiment, the antenna is a rectangular dual-polarized antenna to illustrate the embodiment of the present case. Therefore, the feeding area FZ1 of the antenna AN may include a first side D1 of the rectangle, and the feeding area FZ2 may include a second side D2 of the rectangle, that is, the first side D1 may be orthogonal to the second side D2, and the area shape center FZC1 and the area shape center FZC2 are respectively located at the center points of the first side D1 and the second side D2. According to the embodiment, the antenna AN may include a first antenna plane and a second antenna plane. The first antenna plane and the second antenna plane are opposite to each other. The thickness of the antenna AN is between the first antenna plane and the second antenna plane. The first antenna plane or the second antenna plane may be coplanar with the reference plane. In other words, the antenna AN may be a rectangular antenna with thickness. However, as mentioned above, the dual-polarized antenna is not limited to a rectangle, which will be described below. Fig.11 and Fig.12 , with diagrams and texts illustrating embodiments of dual-polarized antennas in other shapes.

[0077] Figure 1 In the embodiment, the first side D1 may be used to receive the first transmit signal ST1, and the wireless signal STX may be related to the first transmit signal ST1. The second side D2 may be substantially orthogonal to the first side D1. According to an embodiment, the first side D1 may be adjacent to the second side D2, and the first side D1 may have substantially the same length as the second side D2. The shape of the antenna AN may be a square.

[0078] According to an embodiment, the antenna AN may be a dual-polarized antenna, and the polarity direction of the wireless signal wave received and transmitted by the antenna AN may be orthogonal to the direction of travel of the induced current, so that the wireless signal STX and the wireless signal SRX are not easy to interfere with each other on the antenna AN. The length of the first side D1 and the second side D2 may be approximately half the wavelength of the first transmit signal ST1 or the wireless signal STX.

[0079] The second side D2 may be used to output a first receive signal SR1, and the first receive signal SR1 may be related to the wireless signal SRX. The transmitting circuit 110 and the receiving circuit 120 may be coupled to the antenna AN, or may be substantially insulated from the antenna AN. In one embodiment, the transmitting circuit 110 and the receiving circuit 120 are coupled to the antenna AN. The transmitting circuit 110 may be coupled to the first side D1 to generate a first transmit signal ST1. The receiving circuit 120 may be coupled to the second side D2 to generate a processed signal SA, wherein the processed signal SA may be related to the first receive signal SR1. According to an embodiment, the wireless signal STX may be generated based on at least the first transmit signal ST1, and the first receive signal SR1 may be generated based on the wireless signal SRX.

[0080] Figure 2 FIG. 2 is a schematic diagram of a wireless signal transceiver device 200 in another embodiment. The wireless signal transceiver device 200 may be an embodiment of the wireless signal transceiver device 100, such as Figure 2 As shown, the transmitting circuit 110 may include a first amplifier A1, wherein the first transmitting signal ST1 may correspond to the output signal SO output by the first amplifier A1. The receiving circuit 120 may include a second amplifier A2, and the second amplifier A2 may be used to amplify the first receiving signal SR1 and output the processed signal SA. According to an embodiment, the output signal SO may be a single signal or a pair of signals with a specific phase difference, the first amplifier A1 may be a power amplifier, and the second amplifier A2 may be a low noise amplifier.

[0081] Figure 3 FIG. 1 is a schematic diagram of a wireless signal transceiver device 300 in another embodiment. The wireless signal transceiver device 300 may be an embodiment of the wireless signal transceiver device 100, such as Figure 3 As shown, the transmitting circuit 110 may include a combiner 115 and a first amplifier A31. The combiner 115 may be coupled between the first side D1 of the antenna AN and the first amplifier A31, and is used to receive the first output signal SO1 and the second output signal SO2 output by the first amplifier A31, combine the first output signal SO1 and the second output signal SO2 to generate a first transmitting signal ST1, and output the first transmitting signal ST1 to the first side D1. Figure 3 In the embodiment, the first amplifier A31 has two output terminals. The output signal of the first amplifier A31 includes a first output signal SO1 and a second output signal SO2. The first output signal SO1 and the second output signal SO2 can be differential signals to each other.

[0082] Figure 4 FIG. 4 is a schematic diagram of a wireless signal transceiver device 400 in another embodiment. The wireless signal transceiver device 400 may be an embodiment of the wireless signal transceiver device 100, such as Figure 4 As shown, the receiving circuit 120 may include a coupler 125 and a second amplifier A42. The coupler 125 may be coupled between the second side D2 of the antenna AN and the second amplifier A42 to receive the first receiving signal SR1, convert the first receiving signal SR1 into a first input signal SI1 and a second input signal SI2, and output the first input signal SI1 and the second input signal SI2 to the second amplifier A42. Figure 4 In the embodiment, the second amplifier A42 can generate the processed signal SA according to the first input signal SI1 and the second input signal SI2, and the first input signal SI1 and the second input signal SI2 can be differential signals to each other.

[0083] Figure 5 FIG. 5 is a schematic diagram of a wireless signal transceiver device 500 in another embodiment. The wireless signal transceiver device 500 may be an embodiment of the wireless signal transceiver device 100. Figure 5 The transmitting circuit 110 may be as follows Figure 3 , comprising a combiner 115 and a first amplifier A31, Figure 5 The receiving circuit 120 may be as follows Figure 4 , including a coupler 125 and a second amplifier A42, the principle of which will not be elaborated.

[0084] Figure 6 FIG. 6 is a schematic diagram of a wireless signal transceiver 600 in an embodiment. In this embodiment, the transmitting circuit 110 and the receiving circuit 120 are substantially insulated from the antenna AN. Figure 6 As shown, the wireless signal transceiver device may include feeding elements F1 and F2. Either of the feeding elements F1 and F2 may be a T-shaped element. Taking the feeding element F1 as an example, the feeding element F1 may include a strip conductor F1A and a transmission line F1B. Similarly, the feeding element F2 may also include these two parts. The feeding element F1 may be disposed on the first side D1 of the antenna AN to receive the first transmission signal ST1 generated by the transmitting circuit 110, and feed the first transmission signal ST1 into the antenna AN through electromagnetic induction, wherein the feeding element F1 and the transmitting circuit 110 may be substantially insulated from the antenna AN. The feeding element F2 may be disposed on the second side D2 of the antenna AN to feed the first receiving signal SR1 through electromagnetic induction and output it to the receiving circuit 120, wherein the feeding element F2 and the receiving circuit 120 may be substantially insulated from the antenna AN.

[0085] According to an embodiment, the feeding element F1 may be, for example (but not limited to), a T-shaped feeding element, the strip conductor F1A may be a straight strip, and is disposed correspondingly at the edge of the antenna AN, and the strip conductor F1A of the feeding element F1 and the first side D1 of the antenna AN may be disposed parallel to each other and have a first distance L1, and the length of the strip conductor F1A is approximately 0.5 to 1 times the length of the first side D1. This first distance L1 is related to the impedance corresponding to the first transmission signal ST1. Among them, the feeding element F1 can be used to receive the first transmission signal ST1 via the transmission line F1B at the middle position of the strip conductor F1A. The feeding element F2 may be, for example (but not limited to), a T-shaped feeding element, and the strip conductor of the feeding element F2 and the second side D1 of the antenna AN may be disposed parallel to each other and have a second distance L2, and the length of the strip conductor of the feeding element F2 is approximately 0.5 to 1 times the length of the second side D2. This second distance L2 is related to the impedance corresponding to the first receiving signal SR1. The feeding element F2 may be used to output the first receiving signal SR1 via the transmission line at the middle position of the strip conductor.

[0086] Figure 7 FIG. 7 is a schematic diagram of a wireless signal transceiver 700 in an embodiment. The wireless signal transceiver 700 may include an antenna AN, a transmitting circuit 710 and a receiving circuit 720 . Figure 7The antenna AN may include a third side D3 relative to the first side D1 in addition to the first side D1 and the second side D2. The third side D3 is substantially orthogonal to the second side D2 and is coupled to the transmitting circuit 710, and may be used to receive the second transmitting signal ST2, wherein the wireless signal STX may be generated according to the first transmitting signal ST1 and the second transmitting signal ST2. The transmitting circuit 710 may be used to output the first transmitting signal ST1 and the second transmitting signal ST2. Figure 7 As shown, the antenna AN may further include a fourth side D4 relative to the second side D2, and the fourth side D4 may be substantially orthogonal to the first side D1 and coupled to the receiving circuit 720 to output the second receiving signal SR2, wherein the first receiving signal SR1 and the second receiving signal SR2 may be generated according to the wireless signal SRX. The receiving circuit 720 may be used to receive the first receiving signal SR1 and the second receiving signal SR2, and generate a processing signal SA according to the first receiving signal SR1 and the second receiving signal SR2. The first transmitting signal ST1 and the second transmitting signal ST2 may be differential signals to each other, and the first receiving signal SR1 and the second receiving signal SR2 may be differential signals to each other. The relationship between the third side D3, the fourth side D4 and their respective corresponding feeding areas and the antenna shape center CT is as follows: Figure 1 The relationship between the first side D1 and the second side D2 and the corresponding feed areas FZ1 and FZ2 and the antenna shape center CT is similar and will not be described again. However, the third reference line formed by the line connecting the area shape center of the feed area corresponding to the third side D3 and the antenna shape center CT will be opposite to the first direction DR1; the fourth reference line formed by the line connecting the area shape center of the feed area corresponding to the fourth side D4 and the antenna shape center CT will be opposite to the second direction DR2.

[0087] Figure 8 is a schematic diagram of a wireless signal transceiver 800 in an embodiment. The wireless signal transceiver 800 is similar to Figure 7 I will not go into details here, but if Figure 8 As shown, the wireless signal transceiver device 800 may include feeding elements F1 to F4. Figure 1 and Figure 6, the bipolar antenna AN may include feeding areas FZ1 to FZ4, including the first side D1 to the fourth side D4 respectively. The feeding elements F1 and F2 may be as described above, and the feeding element F3 is similar to the feeding element F1 and may be disposed on the third side D3 of the antenna AN to receive the second transmission signal ST2 and feed the second transmission signal ST2 into the antenna AN through electromagnetic induction. The feeding element F3 may be substantially insulated from the antenna AN, and the distance between the feeding element F3 and the antenna AN may be related to the impedance corresponding to the second transmission signal ST2. The feeding element F4 is similar to the feeding element F2 and may be disposed on the fourth side D4 of the antenna AN to feed the second reception signal SR2 through electromagnetic induction and output the second reception signal SR2 to the receiving circuit 720. The feeding element F4 may be substantially insulated from the antenna AN, and the distance between the feeding element F4 and the antenna AN may be related to the impedance corresponding to the second reception signal SR2. The first transmission signal ST1 and the second transmission signal ST2 can be differential signals, and the first reception signal SR1 and the second reception signal SR2 can be differential signals. The relationship between the third side D3, the fourth side D4 and their corresponding feeding areas FZ3, FZ4 and the antenna shape center CT is as follows: Figure 1 The relationship between the first side D1 and the second side D2 and the corresponding feed areas FZ1 and FZ2 and the antenna shape center CT is similar and will not be described again. However, the third direction formed by the line connecting the area shape center of the feed area corresponding to the third side D3 and the antenna shape center CT will be opposite to the first direction DR1; the fourth reference line formed by the line connecting the area shape center of the feed area corresponding to the fourth side D4 and the antenna shape center CT will be opposite to the second direction DR2.

[0088] Fig. 9 FIG. 9 is a schematic diagram of a wireless signal transceiver 900 in an embodiment. Fig. 9 As shown, the wireless signal STX can be used to generate a wireless signal SRX after being reflected by the object OBJ. The transmitting circuit 110 can be used to generate a first transmitting signal ST1 according to the input signal SI. The wireless signal transceiver 900 can include a processing unit PU, which can be coupled to the transmitting circuit 110 and the receiving circuit 120 to generate spatial information of the object OBJ according to the input signal SI and the processing signal SA. In other words, the wireless signal transceiver 900 can be used to detect the spatial information of the object OBJ, such as the distance, moving speed, moving angle, or the time point of detection.

[0089] Fig.10 1 is a schematic diagram of a wireless signal transceiver 1000 in an embodiment. The wireless signal transceiver 1000 may include antennas AN1 and AN2, transmitting circuits 1010 and 1030, and receiving circuits 1020 and 1040.

[0090] Antenna AN1 can be used to transmit the first wireless signal SX1 and receive the second wireless signal SX2 substantially at the same time. Figure 1 Antenna AN is similar, so the first antenna AN1 includes a first feeding area, a second feeding area and an antenna shape center, the first feeding area includes a first side D11, and the second feeding area includes a second side D12. The first feeding area has a first area shape center, the second feeding area has a second area shape center, the line connecting the first area shape center and the antenna shape center forms a first reference line, the line connecting the second area shape center and the first antenna shape center forms a second reference line, and the first reference line is substantially orthogonal to the second reference line. The first side D11 can be used to receive a first transmission signal ST1A, wherein the first wireless signal SX1 can be generated in relation to the first transmission signal ST1A, and the second side D12 can be used to output a first reception signal SR1A, wherein the first reception signal SR1A can be generated in relation to the second wireless signal SX2. The transmission circuit 1010 can be coupled to the first side D11 of the antenna AN1 to generate the first transmission signal ST1A. The receiving circuit 1020 may be coupled to the second side D12 of the antenna AN1 to generate a processed signal SA1 , wherein the processed signal SA1 may be generated in relation to the first receiving signal SR1A.

[0091] The antenna AN2 may be used to transmit the second wireless signal SX2 and receive the first wireless signal SX1 substantially simultaneously. Similarly, the antenna AN2 may include a first feeding area, a second feeding area and an antenna shape center, the first feeding area includes a first side D21, and the second feeding area includes a second side D22. The first feeding area has a first area shape center, the second feeding area has a second area shape center, the line connecting the first area shape center and the antenna shape center forms a first reference line, the line connecting the second area shape center and the antenna shape center forms a second reference line, and the first reference line is substantially orthogonal to the second reference line. The first side D21 may be used to receive a second transmitting signal ST2A, wherein the second wireless signal SX2 may be generated in relation to the second transmitting signal ST2A, and the second side D22 may be used to output a second receiving signal SR2A, wherein the second receiving signal SR2A may be generated in relation to the first wireless signal SX1. The transmitting circuit 1030 may be coupled to the first side D21 of the antenna AN2 to generate the second transmitting signal ST2A, and the receiving circuit 1040 may be coupled to the second side D22 of the antenna AN2 to generate the processing signal SA2, wherein the processing signal SA2 may be generated in relation to the second receiving signal SR2A. According to an embodiment, the first reference line of the antenna AN1 is orthogonal to the first reference line of the antenna AN2, or the second reference line of the antenna AN1 is orthogonal to the second reference line of the antenna AN2. According to an embodiment, the first reference line of the antenna AN1 is orthogonal to the first reference line of the antenna AN2, and the second reference line of the antenna AN1 is orthogonal to the second reference line of the antenna AN2.

[0092] According to an embodiment, the first wireless signal SX1 and the second wireless signal SX2 are, for example, radio frequency signals. Over a period of time, since the first wireless signal SX1 is continuously transmitted by the antenna AN1, it is also continuously received by the antenna AN2; and the second wireless signal SX2 is continuously transmitted by the antenna AN2, it is also continuously received by the antenna AN1. That is, when the antenna AN1 continuously transmits the first wireless signal SX1, it substantially continuously receives the second wireless signal SX2 at the same time; conversely, when the antenna AN2 continuously transmits the second wireless signal SX2, it substantially continuously receives the first wireless signal SX1 at the same time. According to an embodiment, the waveform of the first wireless signal SX1 and the waveform of the second wireless signal SX2 may be fixed or may vary over time, depending on the wireless data communication content contained in the processed signal SA1 or SA2.

[0093] According to an embodiment, antenna AN1 and antenna AN2 may be separated by a distance L10, the first side D11 of antenna AN1 may be substantially orthogonal to the second side D12, the first side D11 of antenna AN1 may be substantially orthogonal to the first side D21 of antenna AN2, and the first side D21 of antenna AN2 may be substantially orthogonal to the second side D22 of antenna AN2.

[0094] According to an embodiment, the first side D11 of the antenna AN1 may be adjacent to the second side D12 , and the first side D21 of the antenna AN2 may be adjacent to the second side D22 .

[0095] like Fig.10 As shown, wireless data communication can be achieved using the wireless signal transceiver 1000. For example, if the distance L10 is 100 meters, wireless communication within a distance of 100 meters can be performed through the antenna AN1 and the antenna AN2.

[0096] According to an embodiment, the first wireless signal SX1 can be generated based on at least the first transmission signal ST1A, the first reception signal SR1A can be generated based on the second wireless signal SX2, the second wireless signal SX2 can be generated based on at least the second transmission signal ST2A, and the second reception signal SR2A can be generated based on the first wireless signal SX1.

[0097] According to the embodiment, since the first side D11 of the antenna AN1 and the second side D22 of the antenna AN2 can be corresponding antenna parts to each other when sending and receiving wireless signals, and the first side D21 of the antenna AN2 can be corresponding antenna parts to the second side D12 of the antenna AN1, the first side D11 of the antenna AN1 can have substantially the same length as the second side D22 of the antenna AN2 and can be substantially parallel / overlapping with each other, and the first side D21 of the antenna AN2 can have substantially the same length as the second side D12 of the antenna AN1 and can be substantially parallel / overlapping with each other.

[0098] According to an embodiment, the first side D11 and the second side D12 of the antenna AN1 may have substantially the same length. For example, since the length of the antenna side for feeding a signal may be related to the frequency of the fed signal, when time-division transmission is performed using the same frequency, the first side D11 and the second side D12 of the antenna AN1 may be designed to have the same length.

[0099] According to another embodiment, the first side D11 of the antenna AN1 may have a different length from the second side D12. For example, when frequency division transmission is performed using different frequencies, the first side D11 and the second side D12 of the antenna AN1 may be designed to have different lengths. According to another embodiment, the first side D11 of the antenna AN1 and the second side D22 of the antenna AN2 may have substantially the same first length. The second side D12 of the antenna AN1 and the first side D21 of the antenna AN2 may have substantially the same second length. The first length may be different from the second length.

[0100] According to the embodiment, the shape of the antenna AN1 and the antenna AN2 may include a square or a rectangle. A feeding element may be disposed on each side of the antenna AN1 and the antenna AN2, for example Figure 6 , Figure 8The feeding element shown feeds the signal into or out of the antenna by electromagnetic induction.

[0101] According to an embodiment, antenna AN1 and antenna AN2 may be connected to Figure 6 , Figure 8 Similar to the example shown, a differential signal is transmitted or received.

[0102] Figures 1 to 10 ,and Fig.13 In the example, the antenna is rectangular. Fig.11 The elliptical antenna can be a dual-polarized antenna, which can also be applied to Figures 1 to 10 ,and Fig.13 Configuration.

[0103] Fig.11 FIG. 4 is a partial schematic diagram of a wireless signal transceiver in an embodiment. Fig.11 Omit Figure 1 The transmitting circuit 110 and the receiving circuit 120 in FIG. 1 only show the antenna ANB and the feeding elements F111 and F112. The feeding elements F111 and F112 can be respectively arranged corresponding to the feeding zones FZ111 and FZ112. Figures 1 to 10 ,and Fig.13 The rectangular antenna of the antenna ANB may be elliptical or circular as described above. The feeding element F111 may include a strip conductor F111A and a transmission line F111B. The strip conductor F111A may extend parallel to the edge of the antenna ANB. In other words, when the antenna AN11 is elliptical or circular, the strip conductor F111A may be arc-shaped (ARC). Similarly, the feeding element F112 may include a strip conductor F112A and a transmission line F112B, and their shapes are the same. There may be a distance DT1 between the strip conductor F111A and the edge of the antenna ANB. The distance DT1 may be related to the impedance corresponding to the transmitted signal. For example, if the antenna ANB is applied to Figure 6 For example, the transmission line F111B can be disposed at the middle position of the strip conductor F111A to receive the first transmission signal ST1. Similarly, the transmission line F112B of the feeding element F112 can be used to output the first receiving signal SR1. Figure 1Similarly, the antenna ANB may include feed zones FZ111 and FZ112. The antenna ANB may have an antenna shape center CT, the feed zone FZ111 has a regional shape center, the feed zone FZ112 has a regional shape center, the line connecting the regional shape center of the feed zone FZ111 and the antenna shape center CT forms a first direction DR1, the line connecting the regional shape center of the feed zone FZ112 and the antenna shape center CT forms a second direction DR2, and the first direction DR1 is substantially orthogonal to the second direction DR2. The angle AA1 between the feed zone FZ111 and the antenna shape center CT is approximately 22.5 degrees to 120 degrees, and the angle AA2 between the feed zone FZ112 and the antenna shape center CT is approximately 22.5 degrees to 120 degrees, and the sum of the angle AA1 and the angle AA2 is not greater than 180 degrees.

[0104] The antenna ANB may have a first antenna surface and a second antenna surface, and a thickness may be formed between the first antenna surface and the second antenna surface. One of the first antenna surface and the second antenna surface may be located on a reference plane, and the positions where the strip conductor F111A and the strip conductor F112A are projected onto the reference plane may be located outside the antenna ANB, rather than overlapping. The strip conductor F111A and the transmission line F111B may be parallel and coincident with the reference plane (COPLANAR), and the strip conductor F111A may be parallel to the edge of the antenna ANB and have a distance DT1. Similarly, the strip conductor F112A and the transmission line F112B are also the same, and may be parallel to the edge of the antenna ANB and have a distance DT2. For example, the antenna ANB may be manufactured on a metal layer of a circuit board (such as but not limited to a printed circuit board), and the feeding element may be manufactured on the same metal layer of the circuit board, thereby forming Fig.11 In another embodiment, the antenna body and the feeding element can be manufactured in different metal layers, and can also be formed Fig.11 Antenna.

[0105] Fig.12 FIG. 1 is a partial schematic diagram of a wireless signal transceiver in an embodiment. Fig.11 Similarly, only antenna ANB, feed elements F111 and F112 are shown, however Fig.12 In the figure, the position of the strip conductors F111A and F112A projected on the reference plane may be located inside the antenna ANB and overlap with the antenna ANB in ​​the vertical direction. The strip conductor of any one of the feeding elements F111 and F112 may be arranged in the same plane (COPLANAR) as the transmission line. The strip conductor may be parallel to the reference plane and have a vertical distance. For example, the antenna ANB may be manufactured on a metal layer of a circuit board (for example, but not limited to, a printed circuit board), and the feeding element may be manufactured on another metal layer of the circuit board, and the two metal layers may have the vertical distance between them to form Fig.12The antenna ANB can be a dual-polarized antenna, and the relationship between its feed areas FZ111 and FZ112 and the antenna shape center CT is Fig.11 The embodiments are similar and will not be described repeatedly.

[0106] Fig.11 and Fig.12 In the example, an antenna having two feeding elements is used for illustration, but according to the embodiment, an elliptical antenna may also be Figure 8 As shown, four feeding elements are respectively arranged in the four feeding areas, and similar parts in application are not described repeatedly.

[0107] Fig.13 FIG. 1 is a schematic diagram of a wireless signal transceiver device 1300 in another embodiment. The wireless signal transceiver device 1300 may be an embodiment of the wireless signal transceiver device 100, such as Fig.13 As shown, the main difference between the wireless signal transceiver device 1300 and the wireless signal transceiver device 100 is that it further includes an antenna AN2. Antenna AN2 may be a dual-polarized antenna, which may be coupled to the transmitting circuit 110 and the receiving circuit 120 together with antenna AN1, and may be used to receive the first transmitting signal ST1 and substantially simultaneously receive the wireless signal SRX (not shown). Antenna AN1 and antenna AN2 may form a 1×2 antenna array. In other embodiments, one or more antennas may be coupled to the transmitting circuit 110 and the receiving circuit 120 together, which may all be dual-polarized antennas, to form an M×N antenna array with antennas AN2 and AN1. The M×N antenna array may be used to receive a signal (such as the first transmitting signal ST1) from the transmitting circuit (such as 110), and output a signal (such as the first receiving signal SR1) to the receiving circuit (such as 120). Parameters M and N may be positive integers greater than zero. For example, in an M×N antenna array, one of M and N may be 1, and the other may be an integer greater than 1. Therefore, the M×N antenna array may be a 1×N antenna array or an M×1 antenna array. In another example, M and N may be positive integers greater than 1.

[0108] Fig.14 FIG. 1 is a partial schematic diagram of a wireless signal transceiver in an embodiment. Fig.11 , omitted here Figure 1 Or the transmitting circuit 110 and the receiving circuit 120 mentioned in other embodiments, only the antenna ANB and the feeding elements F111 and F112 are drawn.

[0109] Similar to Fig.11 ,At Fig.14 In the embodiment, the feeding elements F111 and F112 may be disposed corresponding to the feeding zones FZ111 and FZ112. Fig.14In the embodiment, the line connecting the area shape center of the feed area FZ111 and the antenna shape center CT may form a first direction DR1, and the line connecting the area shape center of the feed area FZ112 and the antenna shape center CT may form a second direction DR2. The acute angle θ formed by the first direction DR1 and the second direction DR2 may be not less than 45 degrees; in other words, 45°≤θ<90°. For example, if the first direction DR1 and the second direction DR2 form two angles, 85 degrees and 95 degrees, the acute angle θ is 85 degrees.

[0110] Fig.14 The antenna ANB may be a dual-polarized antenna, and the shape of its cross section or cross section may be circular or elliptical.

[0111] For example, Fig.14 The feeding elements F111 and F112 can be as follows Fig.11 , disposed beside the antenna ANB, wherein the projection area of ​​the antenna ANB may not overlap with the projection areas of the feeding elements F111 and F112.

[0112] For example, Fig.14 The feeding elements F111 and F112 can be as follows Fig.11 , disposed above or below the antenna ANB, wherein the projection area of ​​the antenna ANB may overlap with the projection areas of the feeding elements F111 and F112.

[0113] The feeding elements F111 and F112 may be insulated from the antenna ANB. Signals may be transmitted and received between the antenna ANB and the feeding elements F111 and F112 due to a coupling effect. Fig.15 for Fig.14 , a graph showing the acute angle θ relative to the signal isolation. The signal isolation mentioned here refers to the isolation of the wireless signals transmitted and received by the antenna ANB.

[0114] like Fig.15 As shown, when the acute angle θ is greater than or equal to 45 degrees (that is, 45°≤θ), the isolation can be greater than 8 decibels (dB) and fall within the acceptable range. When the acute angle θ increases from 45 degrees to 90 degrees, the isolation can increase to about 24 dB, and then rise to about 32 dB, so the signal quality can be better guaranteed.

[0115] like Fig.15 As shown, when the acute angle θ increases to 75 degrees, the isolation can be significantly increased with the increase in the slope of the curve. Therefore, according to an embodiment, the acute angle θ may be not less than 75 degrees. In other words, the acute angle θ may be set to 75°≤θ<90° to obtain better isolation.

[0116] By adopting the wireless signal transceiver provided in the embodiment, only a single radiator antenna can be used to perform signal reception and signal transmission at the same time, thereby realizing the application of detecting objects or transmitting signals over long distances. In addition, the external coupling element or duplexer between the antenna and the amplifier circuit can be omitted, which is beneficial for reducing the antenna area and simplifying the structure and volume of the overall system.

[0117] Fig.16 1 is a schematic diagram of a wireless signal transceiver 100 in an embodiment. The wireless signal transceiver 100 may include an antenna AN, a transmitting circuit 110, a receiving circuit 120, and a processing circuit PU. The antenna AN may be a dual-polarized antenna, which may be used to transmit a wireless signal STX and receive a wireless signal SRX substantially simultaneously. The wireless signal STX may be reflected by an object OBJ to generate a wireless signal SRX.

[0118] The antenna AN includes feed zones FZ1 and FZ2. The feed zone FZ1 is used to receive a transmission signal ST1, and a wireless signal STX can be generated according to at least the transmission signal ST1. The feed zone FZ2 is used to output a reception signal SR1, and the reception signal SR1 can be generated according to the wireless signal SRX.

[0119] The antenna AN can be used to form radiated electric fields E1 and E2. The radiated electric field E1 can have a first co-polarization direction according to the wireless signal STX, and the radiated electric field E2 can have a second co-polarization direction according to the wireless signal SRX. The first co-polarization direction and the second co-polarization direction can form a non-orthogonal angle θ1. In the far-field, the non-orthogonal angle θ1 can be between 45 degrees and 135 degrees.

[0120] The transmitting circuit 110 can generate a transmitting signal ST1 according to the input signal SI, and the receiving circuit 120 can generate a processing signal SA according to the receiving signal SRI. The processing unit PU is coupled to the transmitting circuit 220 and the receiving circuit 120 to generate spatial information of the object OBJ according to the processing signal SA and the input signal SI.

[0121] Fig.16 In the embodiment, the wireless signal transceiver device 100 may be a radar device. In a period of time, the wireless signal STX may be continuously transmitted, and the wireless signal SRX may be continuously received. When the object OBJ moves, a frequency shift (FREQUENCY SHIFT) may be generated according to the Doppler effect. Therefore, the processing unit PU may determine whether the object OBJ moves according to the frequency difference between the wireless signals STX and SRX. When the frequency difference between the wireless signals STX and SRX is substantially zero, it may be determined that the object OBJ is stationary.

[0122] like Fig.16As shown, the direction DR1 can be formed by connecting the shape center FZC1 of the feeding area FZ1 and the antenna shape center CT of the antenna AN, and the direction DR2 can be formed by connecting the shape center FZC2 of the feeding area FZ2 and the antenna shape center CT of the antenna AN. The non-orthogonal angle θ2 formed by the directions DR1 and DR2 can be between 45 and 135 degrees (45°≤θ2≤135°, θ2≠90°), so that the signals received and sent by the feeding areas FZ1 and FZ2 have sufficient isolation, and the above-mentioned radiated electric fields E1 and E2 (having the first co-polarization direction and the second co-polarization direction, respectively) are generated in the far field. In other words, the non-orthogonal angle θ2 formed by the directions DR1 and DR2 is not less than 45 degrees (45°≤θ2<90°), so that the first co-polarization direction and the second co-polarization direction form a non-orthogonal acute angle θ1 in the far field, and 45°≤θ1<90°, so as to achieve a similar Fig.14 and Fig.15 The effect of the corresponding embodiment. However, Fig.16 In the figure, the positions of the feeding zones FZ1 and FZ2 are just examples, and the positions of the feeding zones FZ1 and FZ2 can be adjusted according to the structure and performance of the antenna.

[0123] Fig.17 and Fig.18 2 is a top view and a side view of the antenna AN in the embodiment. Fig.17 and Fig.18 As shown, the antenna AN may be a dual-polarized antenna, which may include a patch PA, a conductive line CL, a ground terminal GND and an insulating layer LI. The patch PA is formed on the first conductive layer LC1. The conductive line CL is formed on the first conductive layer LC1 and coupled to one of the feed zones FZ1 and FZ2, for transmitting and receiving a transmission signal ST1 or a reception signal SR1. The ground terminal GND is formed on the second conductive layer LC2. The insulating layer LI is located between the first conductive layer LC1 and the second conductive layer LC2. According to an embodiment, the first conductive layer LC1 and the second conductive layer LC2 may be insulated from each other or not. Fig.17 and Fig.18 In the present invention, the conductive line CL may be a microstrip line, and the insulating layer mentioned in this article may be a substrate.

[0124] Fig.19 and Fig. 20 2 is a top view and a side view of the antenna AN in the embodiment. Fig.19 and Fig. 20As shown, the antenna AN may be a dual-polarized antenna, which may include a patch PA, a ground terminal GND, a conductive line CL, a first insulating layer LI1, and a second insulating layer LI2. The patch PA is formed on the first conductive layer LC1, and the ground terminal GND is formed on the second conductive layer LC2. The conductive line CL is formed on the third conductive layer LC3 and overlaps one of the feed areas FZ1 and FZ2, and is used to send and receive the transmission signal ST1 or the reception signal SR1. The first insulating layer LI1 is located between the first conductive layer LC1 and the third conductive layer LC3. The second insulating layer LI2 is located between the second conductive layer LC2 and the third conductive layer LC3. As shown in FIG. Fig. 20 As shown, the third conductive layer LC3 is located between the first conductive layer LC1 and the second conductive layer LC2. According to an embodiment, the conductive layers LC1, LC2 and LC3 may be insulated from each other or not. Fig.19 and Fig. 20 In the embodiment, the conductive line CL may be a microstrip line.

[0125] Fig.21 and Fig. 22 1 is a top view and a side view of an antenna AN in an embodiment. The antenna AN may be a dual-polarized antenna, which may include a patch PA, a conductive line CL, a ground terminal GND, a slot SL, a first insulating layer LI1, and a second insulating layer LI2. The patch PA is formed on the first conductive layer LC1. The conductive line CL is formed on the second conductive layer LC2, overlaps one of the feed areas FZ1 and FZ2, and is used to transmit and receive a transmission signal ST1 or a reception signal SR1. The ground terminal GND is formed on the third conductive layer LC3. The slot SL is generated in the third conductive layer LC3 and is located between the conductive line CL and the patch PA. The first insulating layer LI1 is located between the first conductive layer LC1 and the third conductive layer LC3, and the second insulating layer LI2 is located between the third conductive layer LC3 and the second conductive layer LC2. The third conductive layer LC3 is between the first conductive layer LC1 and the second conductive layer LC2. According to the embodiment, the conductive layers LC1, LC2, and LC3 may be insulated from each other or not. Fig.21 and Fig. 22 In the embodiment, by means of coupling effect, the signal can be transmitted between the patch PA and the conductive line CL through the slot SL.

[0126] According to the embodiment, the shape of the slot SL may be a narrow rectangle, a rectangle, an H-shape, a circle, an ellipse or an irregular shape. The feed regions FZ1 and FZ2 may be adjacent to the edge, the center or the corner of the patch PA. For example, when the feed region FZ1 is adjacent to the lower right corner of the patch PA, the slot SL may be formed at the lower right corner of the patch PA, and the conductive line CL may overlap at the lower right corner of the patch PA.

[0127] Figures 17 to 22In the embodiment, the conductive line CL may be a line (such as a microstrip line) coupled to the transmitting circuit 110 and the receiving circuit 120; however, in the antenna AN, the conductive element used to couple the transmitting circuit 110 and the receiving circuit 120 may also be a probe, rather than being limited to a line.

[0128] Fig.23 and Fig.24 2 is a top view and a side view of the antenna AN in the embodiment. Fig.23 and Fig.24 As shown, the antenna AN may be a dual-polarized antenna, which may include a patch PA, a ground terminal GND, a hole HL, a needle body PB and an insulating layer LI. The patch PA is formed on the first conductive layer LC1, and the ground terminal GND is formed on the second conductive layer LC2. The hole HL is formed on the second conductive layer LC2 and overlaps one of the feed areas FZ1 and FZ2. The needle body PB is disposed in the hole HL, including a first end coupled to the patch PA, and a second end, and coupled to the transmitting circuit 110 or the receiving circuit 120, so as to receive and transmit the transmitting signal ST1 or the receiving signal SR1. The insulating layer LI is located between the first conductive layer LC1 and the second conductive layer LC2. The conductive layers LC1 and LC2 may be insulated from each other or not.

[0129] Fig.23 In the figure, the shape of the patch PA is circular, but this is just an example, and the patch PA may also have other shapes, such as Fig.17 The rectangle shown, etc.

[0130] Fig.25 FIG. 4 is a top view of the antenna AN in the embodiment. Fig.25 The patch PA is similar to Fig.23 The patch PA further includes slots (SLOT) SL1, SL2, SL3 and SL4. The slots SL1, SL2, SL3 and SL4 may be formed in the patch PA, and cut off the first part, the second part, the third part and the fourth part of the edge of the patch PA respectively. The feed zone FZ1 may be located between the slots SL1 and SL2, and the feed zone FZ2 may be located between the slots SL2 and SL3. The positions of the slots SL2 and SL4 may be opposite to each other, and the positions of the slots SL1 and SL3 may be opposite to each other.

[0131] exist Fig.25 In the example, each slot has a straight line shape; however, the embodiment is not limited thereto, and the shape of the slot may also be a triangle, or an L-shape as shown in FIG. 26 .

[0132] Fig.26 FIG. 4 is a top view of the antenna AN in the embodiment. Fig.26As shown, the slots SL1, SL2, SL3 and SL4 may be formed in the patch PA and arranged symmetrically around the shape center CT of the patch PA. The positions of the slots SL2 and SL4 may be opposite to each other, and the positions of the slots SL1 and SL3 may be opposite to each other.

[0133] According to an embodiment, the shape of the slots SL1 to SL4 may be (but not limited to) an I-shape or a non-linear shape. For example, the non-linear shape may be an arc shape or an L-shape. Fig.26 In the embodiment, the shapes of the slots SL1 to SL4 are L-shaped, which is only an example and not intended to limit the embodiment. In addition, according to the antenna shape center CT, the slots SL1 and SL3 can be point-symmetrical (ie, rotationally symmetrical) to each other, and the slots SL2 and SL4 can be point-symmetrical to each other.

[0134] exist Fig.26 In the example of, each of the slots SL1, SL2, SL3 and SL4 may have an L-shape, thereby having a first portion, a second portion and a turning point, wherein the turning point connects the first portion and the second portion. For example, the first portion and the second portion of the slot SL1 may be perpendicular to each other.

[0135] like Fig.26 As shown, reference line 111 may be a line connecting the turning points of slots SL1 and SL3, and reference line 112 may be a line connecting the turning points of slots SL2 and SL4. The antenna shape center CT may be located at the intersection of reference lines 111 and 112. However, Fig.26 Just for example, if the performance of the antenna is acceptable, the positions of the slots do not need to be exactly symmetrical.

[0136] According to an embodiment, when the shape of the patch PA is rectangular, the first portion and / or the second portion of the slots SL1 to SL4 may be parallel to one side of the patch PA. According to other embodiments, the first portion and / or the second portion of the slots SL1 to SL4 may not be parallel to one side of the patch PA.

[0137] Since the patch PA has slots cut out, the current can flow along the edges of the slots, thus extending the current flow path, thereby reducing the area of ​​the patch PA to access signals of the same frequency. In other words, the size of the antenna can be reduced.

[0138] Fig. 27 FIG. 4 is a top view of the antenna AN in the embodiment. Fig. 27 Similar to Fig.23 ; however, with Fig.23 The difference is, Fig. 27The patch PA is a triangle. The direction DR1 may be a line connecting the shape center FZC1 of the feeding zone FZ1 and the shape center CT of the patch PA, and the direction DR2 may be a line connecting the shape center FZC2 of the feeding zone FZ2 and the shape center CT of the patch PA. The directions DR1 and DR2 may form an angle θ2, and the angle θ2 may be between 45 degrees and 135 degrees.

[0139] Fig.28 FIG. 4 is a top view of an antenna AN in another embodiment. Fig.28 Similar to Fig.23 ; however, with Fig.23 The difference is, Fig.28 The patch PA is rectangular, and Fig.28 The slots SL1, SL2, SL3 and SL4 are formed at the ground terminal GND, wherein the ground terminal GND is formed in the second metal layer LC2 (the second metal layer LC2 may be as shown in FIG. Fig.24 The shape center FZC1 of the feeding zone FZ1 may overlap with the area between two adjacent slots (eg, slots SL3 and SL4), and the shape center FZC2 of the feeding zone FZ2 may overlap with the area between another two adjacent slots (eg, slots SL2 and SL3).

[0140] Fig.29 and Fig.30 FIG. 2 is a top view and a partial side view of an antenna AN in another embodiment. Fig.29 and Fig.30 As shown, the antenna AN may be a dual-polarized antenna, which may include a patch PA, a ground terminal GND, an insulating layer LI, a conductive upper portion TP and a needle body PB. The patch PA is formed on the first conductive layer LC1 and has a hole H1. The ground terminal GND is formed on the second conductive layer LC2 and has a hole H2. The insulating layer LI is located between the first conductive layer LC1 and the second conductive layer LC2. The conductive upper portion TP is formed on the first conductive layer LC1 and is located at the hole H1. The needle body PB penetrates the hole H2, and includes a first end coupled to the conductive upper portion TP, and a second end coupled to the transmitting circuit 110 or the receiving circuit 120, so as to receive and transmit the transmitting signal ST1 or the receiving signal SR1. The holes H1 and H2 may overlap in one of the feeding areas FZ1 and FZ2, and the needle body PB and the conductive upper portion TP are insulated from the conductive layers LC1 and LC2. According to an embodiment, the conductive layers LC1 and LC2 may be insulated from each other or not. As Fig.29 and Fig.30 As shown, the conductive upper portion TP1 and the needle body PB can form a "thumbnail" shape, and can transmit signals to the patch PA and receive signals from the patch PA through a coupling effect.

[0141] Fig.31 and Fig.32 1 is a top view and a perspective view of an antenna AN in another embodiment. Fig.31 and Fig.32 The antenna AN can be similar to Fig.29 and Fig.30 Antenna AN; however, Fig.31 and Fig.32 The antenna AN may not have a conductive upper portion TP. Fig.29 and Fig.30 , Fig.31 and Fig.32 In the process, the needle body PB and the patch PA can send and receive signals through the coupling effect.

[0142] Fig.33 and Fig.34 1 is a top view and a partial side view of an antenna AN in another embodiment. Fig.33 and Fig.34 The antenna AN can be similar to Fig.29 and Fig.30 Antenna AN; however, Fig.33 and Fig.34 The conductive upper portion TP in the embodiment may be located above the hole H1 and the first conductive layer LC1, rather than being located in the hole H1. Fig.33 and Fig.34 The diameter of the conductive upper portion TP may be greater than the diameter of the hole H1. For example, the conductive upper portion TP may be made of another conductive layer higher than the conductive layers LC1 and LC2.

[0143] Fig.35 and Fig.36 1 is a top view and a partial side view of an antenna AN in another embodiment. Fig.35 The antenna AN can be similar to Fig.29 antenna; however, Fig.35 In the embodiment, the conductive top portion TP may be located between the first conductive layer LC1 and the second conductive layer LC2, rather than in the hole of the conductive layer LC1. Fig.35 and 21 As shown in the figure, the conductive layer LC2 may have a hole H2, but the conductive layer LC2 may not have a hole. The conductive upper portion TP may be formed using a conductive layer between the conductive layer LC1 and the conductive layer LC2.

[0144] like Fig.35 and Fig.36 As shown, the conductive top portion TP may be circular; however, the conductive top portion TP may also be other shapes. For example, the conductive top portion TP may be rectangular, square, oval, circular or irregular. The conductive top portion TP may have a first side and a second side, and the first end of the needle PB may be coupled to the second side of the conductive top portion TP.

[0145] Fig.37 and Fig.38 1 is a top view and a partial side view of an antenna AN in another embodiment. Fig.37and Fig.38 The antenna AN can be similar to Fig.35 and Fig.36 antenna; however, Fig.37 and Fig.38 In the embodiment, the conductive top portion TP may have a first end and a second end, wherein the second end is coupled to the first end of the needle PB. In addition, the conductive top portion TP may be substantially perpendicular to the needle PB. In other words, the conductive top portion TP and the needle PB may form an inverted L-shaped structure.

[0146] Fig.39 FIG. 4 is a top view of an antenna AN in another embodiment. Fig.39 The antenna AN can be similar to Fig.29 , Fig.31 , Fig.33 , Fig.35 or Fig.37 However, Fig.39 In the embodiment, the patch PA can be rectangular, and the pins PB1 and PB2 of the antenna AN can be disposed at two corners of the patch PA. The pins PB1 and PB2 can be used to transmit signals to the receiving circuit 120 or receive signals from the transmitting circuit 110, and the pins PB1 and PB2 can transmit and receive signals with the patch PA by coupling effect.

[0147] Fig.40 FIG. 4 is a side view of an antenna AN in another embodiment. Fig.40 The antenna AN can be similar to Fig.35 and Fig.36 . Fig.40 The antenna AN may include a conductive upper portion TP and a needle body PB coupled to each other, so as to transmit a signal to the patch PA or receive a signal from the patch PA by a coupling effect. Fig.40 The antenna AN may include an insulating layer LI1, an insulating layer LI2, and a gap (GAP) GP. The insulating layer LI1 is located between the conductive layer LC1 and the conductive layer LC2. The insulating layer LI2 is located between the insulating layer LI1 and the conductive layer LC2 and includes a first side and a second side, wherein the conductive layer LC2 is located on the second side. The gap GP is located between the insulating layer LI1 and the insulating layer LI2. Fig.35 As shown, the conductive layer LC2 may have a hole, and the needle PB may penetrate the hole to be coupled to the transmitting circuit 110 or the receiving circuit 120 .

[0148] The insulating layer mentioned herein may be a substrate or a layer formed of an insulating material. For example, when the insulating layer is an air layer, the insulating layer may be a gap. The conductive line mentioned herein may be a microstrip line or other types of conductive line bodies.

[0149] Figures 17 to 40 Various conductive paths are described for antenna AN to receive signals from transmit circuit 110 and / or transmit signals to receive circuit 120. As described above, conductive lines can be used to transmit and receive signals. Fig.16 The transmitting signal ST1 and / or receiving signal SR1 are shown, and the conductive line can be coupled to the patch, the needle, the needle and the conductive upper part, and / or insulated from the patch.

[0150] The above structures can be mixed with each other (IN HYBRID), Figure 41 to Figure 45 It is a top view of an antenna AN with a hybrid structure in other embodiments.

[0151] Fig.41 The antenna AN may be a dual-polarized antenna, wherein, from the upper layer to the lower layer, it may include conductive layers LC1, LC3 and LC2, similar to Fig. 22 As shown. The ground terminal GND may be formed in the conductive layer LC2, and the conductive line CL1 may be coupled to the patch PA and formed in the conductive layer LC1. The slot SL may be formed in the conductive layer LC3; for example, the slot SL may be H-shaped, but the embodiment is not limited thereto. The conductive line CL2 may be formed in the conductive layer LC2, and is used to receive a signal from the patch PA or transmit a signal to the patch PA through the slot SL by a coupling effect. In other words, in Fig.41 In the example, the conductive line CL1 may be similar to Fig.17 The conductive line CL2 may be similar to Fig.21 The conductive line CL, therefore, Fig.41 The structure may be a mixed structure.

[0152] Fig.42 The antenna AN may be a dual-polarization antenna, which includes a conductive line CL and a coplanar waveguide CPW. The conductive line CL and the coplanar waveguide CPW may be two conductive paths, respectively coupled to one and the other of the transmitting circuit 110 and the receiving circuit 120. Fig.42 The antenna AN may include conductive layers LC1 and LC2, the patch PA may be formed on the conductive layer LC1, and the ground terminal GND may be formed on the conductive layer LC2. An insulating layer may be provided between the conductive layers LC1 and LC2. A slot SL may be formed on the conductive layer LC2 and overlap the feeding region FZ1 or FZ2.

[0153] exist Fig.42 In the example, the slot SL overlaps the feeding area FZ2, and the two linear slots SSL1 and SSL2 can be generated in the insulating layer LC2 and extend inward from the edge or inner part of the ground terminal GND to the slot SL. According to the embodiment, the conductive layers LC1 and LC2 can be insulated from each other or not. The two linear slots SSL1 and SSL2 can be parallel to each other or form an angle, and the portion between the two linear slots SSL1 and SSL2 is used as a coplanar waveguide to transmit the transmission signal ST1 or the reception signal SR1. Fig.42For example only, the linear slots SSL1 and SSL2 may also be extended to a position where they can be coupled to a chip pin (PIN). The linear slots SSL1 and SSL2 may be designed to be tapered. Considering the resistance conversion, the linear slots SSL1 and SSL2 may be designed to be parallel to another coplanar waveguide.

[0154] Fig.43 FIG. 4 is a schematic diagram of an antenna AN including a feeding element FE and a coplanar waveguide CPW in another embodiment. Fig.43 The antenna AN may be a dual-polarized antenna, which may include conductive layers LC1 and LC2, such as Fig.17 , Fig.18 and Fig.42 As shown. Patch PA and coplanar waveguide CPW can be similar to Fig.42 The feeding element FE may be formed in the conductive layer LC1 and insulated from the patch PA. The position of the feeding element FE may correspond to the feeding zone FZ1 or FZ2; Fig.43 In the example of FIG. 1 , the position of the feeding element FE corresponds to the feeding zone FZ1. Signals can be transmitted and received between the feeding element FE and the patch PA by coupling effect. The conductive line CL can be formed in the conductive layer LC1 and coupled to the feeding element FE, so as to transmit and receive the transmission signal ST1 or the reception signal SR1. The feeding element FE and the coplanar waveguide CPW can be coupled to one of the transmitting circuit 110 and the receiving circuit 120 and the other, respectively.

[0155] Fig.44 FIG. 4 is a schematic diagram of an antenna AN in another embodiment. Fig.44 The antenna AN may be a dual-polarized antenna, wherein the conductive layers LC1, LC3 and LC2 may be included from the upper layer to the lower layer, similar to Fig. 22 shown. Fig.44 In the embodiment, the conductive line CL1 may be formed in the conductive layer LC2. The conductive upper portion TP may overlap the feed zone FZ1 or FZ2 and be located between the conductive layers LC1 and LC3. The needle PB may have a first end and a second end, wherein the first end is coupled to the conductive upper portion TP, and the second end is coupled to the conductive line CL1. The needle PB may penetrate the hole formed in the conductive layer LC2. In other words, Fig.44 In the example, the conductive path formed by the conductive upper portion TP, the needle body PB and the conductive line CL1 can be similar to Fig.35 and Fig.36 As shown, the conductive line CL2 may be similar to Fig.21 and Fig. 22 The conductive line CL.

[0156] Fig.45 FIG. 4 is a schematic diagram of an antenna AN in another embodiment. Fig.45The antenna AN may be a dual-polarized antenna, which may include conductive layers LC1, LC3 and LC2 from the upper layer to the lower layer, similar to Fig.21 shown. Fig.45 In the embodiment, the antenna AN may include conductive lines CL1 and CL2. The conductive line CL1 may be formed in the conductive layer LC2 and coupled to the pin PB. The pin PB may penetrate the conductive layer LC3 through a hole formed in the conductive layer LC3. A hole H1 may be formed in the conductive layer LC1 to insulate the pin PB from the conductive layers LC1 and LC3. Fig.45 The conductive line CL2 may be similar to Fig.44 The conductive line CL2 is not described again.

[0157] Figure 41 to Figure 45 The antenna AN may have a hybrid structure because it includes two different types of conductive paths, corresponding to the feeding zones FZ1 and FZ2 respectively.

[0158] Figure 41 to Figure 45 The antenna AN is only an example and does not limit the scope of the embodiment. If the structure allows, two or more conductive paths can be used in the antenna AN to form a hybrid structure to send and receive the transmission signal ST1 and / or the reception signal SR1.

[0159] Figure 16 to Figure 45 The positions of the feed zones FZ1 and FZ2 shown are only examples. According to an embodiment, the antenna AN may include a patch PA, and the position of either the feed zones FZ1 and FZ2 may be adjacent to a side of the patch PA, the center of the patch PA, or a corner of the patch PA. The positions of the feed zones FZ1 and FZ2 may be adjusted to improve the performance of the antenna matching. Initially, the performance of the feed signal may be insufficient, but some techniques may be used to improve the matching of the feed zones FZ1 and FZ2 and to improve the performance of the feed signal. The techniques may include adjusting the bill of materials (BOM) or using open / short stubs (STUBs), etc.

[0160] Fig.46 FIG. 4 is a top view of an antenna AN in another embodiment. Fig.46 The antenna AN may be a dual-polarized antenna, which may include a patch PA, a conductive line CL1, a conductive line CL2, a feeding element FE1, a feeding element FE2, a ground terminal GND, and an insulating layer LI. The patch PA, the conductive line CL1, the conductive line CL2, the feeding element FE1, and the feeding element FE2 may be formed on the conductive layer LC1, and the ground terminal GND may be formed on the conductive layer LC2. The position of the feeding element FE1 may correspond to the feeding zone FZ1, and the position of the feeding element FE2 may correspond to the feeding zone FZ2. In other words, Fig.46 In the example, the conductive lines CL1 and CL2 may be similar to Fig.43Conductive lines CL. By means of coupling effect, signals can be sent and received between the feeding elements FE1 / FE2 and the patch PA. The conductive lines CL1 and CL2 can be formed in LC1 and coupled to the feeding elements FE1 and FE2 respectively, so as to send and receive the transmission signal ST1 or the reception signal SR1. The insulating layer LI can be located between the conductive layers LC1 and LC2. The conductive layers LC1 and LC2 can be insulated or not. The conductive lines CL1 and CL2 can be microstrip lines. The patch PA can include an additional portion APA, and / or a slot (SLOT) / opening (APERTURE) SL, such as Fig.46 As shown. Direction DR1 may be a line connecting the shape center of the feed zone FZ1 and the shape center of the patch PA, and direction DR2 may be a line connecting the shape center of the feed zone FZ2 and the shape center of the patch PA, and directions DR1 and DR2 may form an angle θ. In addition, the structure of the antenna AN without the additional portion APA and / or the slot (SLOT) / opening (APERTURE) SL may be replaced with the above-mentioned FIG. 1~ Fig.13 ,as well as Fig.16 The antenna, and Figure 17 to Figure 45 A dipole antenna with a regularly shaped patch.

[0161] In some use scenarios of the wireless transceiver 100, the frequency corresponding to the best performance of the return loss (RETURNLOSS) of the wireless signal STX, the frequency corresponding to the best performance of the return loss of the wireless signal SRX, and the frequency corresponding to the best performance of the isolation between the wireless signal STX and the wireless signal SRX may be different. For example, due to the design of the printed circuit board of the wireless signal transceiver 100, the trace length (TRACE LENGTH) corresponding to the transmitting circuit 110 and the trace length corresponding to the receiving circuit 120 may be different. Therefore, if Fig.46 As shown, the shape of the patch PA can be adjusted by adding an additional portion APA (e.g., a smaller rectangle) to the original portion (e.g., a larger regular shape, such as a rectangle), and / or removing a portion from the original portion to generate a slot / opening SL (e.g., a smaller irregular trapezoid), thereby changing the position of the shape center CT of the patch PA so that the first direction DR1 and the second direction DR2 are non-orthogonal to each other, and the non-orthogonal angle θ is not equal to 90 degrees. The effect of this embodiment will be Fig.50 Further explanation. Regular shapes are, for example, circles, ellipses, rectangles, regular polygons (such as regular triangles, regular quadrilaterals, etc.). For example, the non-orthogonal angle θ may be between 45 degrees and 90 degrees (45°≤θ<90°) or the non-orthogonal angle θ may be between 90 degrees and 135 degrees (90°<θ≤135°). In other words, the acute angle θ formed by the first direction DR1 and the second direction DR2 is not less than 45 degrees (45°≤θ<90°) to simultaneously achieve similar Fig.14In other embodiments, Figures 1 to 13 ,as well as Fig.16 An antenna having a regular shape, and Figures 17 to 45 The patch of the antenna with a regular shape can change the position of the shape center of the patch of the antenna by adding an additional part APA and / or removing a part to form a slot / opening SL, so that the acute angle θ formed by the first direction DR1 and the second direction DR2 is not less than 45 degrees (45°≤θ<90°), so as to achieve similar Fig.14 , Fig.15 and Fig.46 The effects of the corresponding embodiments.

[0162] Fig.46 In the embodiment of removing a smaller portion from the original larger regular shape to produce a slot / opening, other effects can be further produced. Please refer to Fig.47 Schematic diagram of antenna AN and circuit element 310. In a compact device, the area occupied by the circuit element may interfere with the area occupied by the patch or antenna with a regular shape. Fig.47 As shown, the antenna AN may be a dual-polarized antenna, and its shape, or the shape of its patch PA, may be a non-convex shape (NON-CONVEX SHAPE), such as a concave shape (CONCAVE SHAPE). Fig.47 As shown, the patch PA may be a concave hexagon, wherein the concave hexagon may be generated by removing a portion (eg, a smaller rectangle) from an original portion (eg, a larger regular shape, such as a rectangle). Fig.47 This is just an example and does not limit the scope of the embodiment. Similarly, a portion of the circular patch, a portion of the triangular patch, or a portion of the rectangular patch can be removed, and the resulting space can be used to set the circuit 310. Fig.47 The antenna AN can be similar to Fig.29 Although a needle body is provided, this is only an example and is not intended to limit the present invention.

[0163] Fig.47 , the shape center FZC1 of the feed zone FZ1 and the shape center CT of the antenna AN may be connected to form a direction DR1, and the shape center FZC2 of the feed zone FZ2 and the shape center CT of the antenna AN may be connected to form a direction DR2. Because the shape of the patch PA is not a regular shape (such as a complete rectangle, triangle or circle), the position of the shape center CT is not located at the shape center of the regular shape, and the directions DR1 and DR2 are not perpendicular to each other. For example, the angle θ between the directions DR1 and DR2 may not be equal to 90 degrees, for example, 45°≤θ<90° or 90°<θ≤135°.

[0164] Fig.48Schematic diagram of antenna AN in an embodiment. Antenna AN may be a dual-polarized antenna, which has a first part PA1, a second part PA2 and a third part PA3. The first part PA may have a larger regular shape (such as a rectangle), and the second part PA2 and the third part PA3 are connected to the first part PA1, so that the antenna shape center CT is not located at the shape center CT0 of the regular shape. The regional shape centers FZC1 and FZC2 of the feeding areas FZ1 and FZ2 may form directions DR10 and DR20 with the shape center CT0 of the regular shape, respectively, and the directions DR10 and DR20 are substantially perpendicular to each other. The regional shape centers FZC1 and FZC2 of the feeding areas FZ1 and FZ2 may form directions DR1 and DR2 with the antenna shape center CT, respectively, and the non-orthogonal angle θ formed by the directions DR1 and DR2 may be between 45 degrees and 90 degrees, that is, the acute angle θ is not less than 45 degrees (45°≤θ<90°). Since the antenna shape center CT is no longer located at the shape center CT0 of the regular shape, the angle θ formed by the directions DR1 and DR2 may be changed.

[0165] As described above, the positions of the area shape centers FZC1 and FZC2 of the feeding areas FZ1 and FZ2 can be adjusted so that the acute angle formed by the directions DR1 and DR2 is not less than 45 degrees (for example Fig.14 The antenna AN may also have a notch so that the acute angle formed by the directions DR1 and DR2 is not less than 45 degrees (as shown in FIG. Fig.46 and Fig.47 and / or the antenna AN may have at least a first portion and a second portion, wherein the first portion has a regular shape and the second portion is connected to the first portion, so that the acute angle formed by the directions DR1 and DR2 is not less than 45 degrees (such as Fig.47 and Fig.48 shown).

[0166] As mentioned above, the shape centers of the two feeding areas of the antenna and the shape center of the antenna can form two directions, and the two directions can form an angle; Fig.49 and Fig.50 It is a waveform diagram of S-parameters corresponding to the case where the angles formed by the two directions are different.

[0167] Fig.49 FIG. 1 is a waveform diagram of return loss and isolation when the angle formed by the two directions is substantially 90 degrees in an embodiment. Figure 6 For example, Figure 6 The antenna AN has a regular shape (such as a rectangle), and the angle formed by the two directions is substantially 90 degrees; in this case, Fig.49 As shown, curve a1 is a waveform corresponding to the return loss of transmission / reception (Tx / Rx), and curve a2 is a waveform corresponding to the isolation between transmission and reception. Fig.49As shown, the best return loss corresponds to the frequency fa1, the best isolation corresponds to the frequency fa2, and there is an offset (for example, 75 MHz) between the frequencies fa1 and fa2.

[0168] Fig.50 In the embodiment, the acute angle formed by the two directions is substantially between 45 degrees and 90 degrees, showing the waveform of return loss and isolation. Fig.14 , Fig.46 , Fig.47 and Fig.48 In this case, the two directions are not perpendicular, but may form an acute angle ranging from 45 to 90 degrees. Fig.50 As shown, curve b1 is a waveform corresponding to the return loss of transmission / reception (Tx / Rx), and curve b2 is a waveform corresponding to the isolation between transmission and reception. Fig.50 As shown, the best return loss corresponds to the frequency fb, and the best isolation may also correspond to a frequency close to the frequency fb. Therefore, the frequencies corresponding to the best return loss and isolation may have a small offset or no offset. Therefore, according to the embodiment, by adjusting the antenna shape center CT of the antenna AN, the angle between the two directions may be between 45 degrees and 90 degrees, and the performance of the antenna may be improved accordingly.

[0169] In summary, the embodiments provide various solutions for designing the conductive paths and patches of the antenna AN, so as to transmit signals to the receiving circuit 120 and receive signals from the transmitting circuit 110. The size and performance of the antenna AN can be more easily adjusted, which helps improve design flexibility.

[0170] like Figures 1 to 50 The present invention is also related to the following embodiments as shown in one or more of the embodiments.

[0171] Fig.51 4 is a schematic diagram of a wireless signal transceiver 4800 in an embodiment. The wireless signal transceiver 4800 may include an antenna AN, a transmitting circuit 110, and a receiving circuit 120. The antenna AN may be a dual-polarized antenna, which may include a first side D1 and a second side D2. The first side D1 and the second side D2 include a first concave portion and a second concave portion, respectively. The transmitting circuit 110 is coupled to a feed point FP1 of the first concave portion of the first side D1. The receiving circuit 120 is coupled to a feed point FP2 of the second concave portion of the second side D2. The wireless signal transceiver 4800 may be an embodiment of the wireless signal transceiver 100 having a first concave portion and a second concave portion, and the operation of the wireless signal transceiver 4800 may be similar to that of the wireless signal transceiver 100. Fig.51 In, with Figure 1 Elements with the same reference numerals may operate as above. Figure 1The first concave portion and the second concave portion may be defined as any inwardly concave portion, for example, they may be a slot, a groove or have a U-shape.

[0172] exist Fig.51 In the wireless signal transceiver 4800, the feed point FP1 may be the midpoint MP1 between the first side D1 and the first concave portion. When the transmitting circuit 110 feeds the transmitting signal ST1 to the feed point FP1, a feeding area FZ1 may be formed. The feeding area FZ1 may have an area shape center FZC1. Fig.51 As shown, the area shape center FZC1 may overlap the feed point FP1 and the midpoint MP1 at the first side D1. The feed point FP2 may be the midpoint MP1 of the second side D2 and the second concave portion. When the antenna AN feeds the receiving signal SR1 to the receiving circuit 120, a feeding area FZ2 may be formed, and the feeding area FZ2 may have an area shape center FZC2. Fig.51 As shown, the zone shape center FZC2 may overlap the feed point FP2 and the midpoint MP2 at the second side D2.

[0173] exist Figure 1 In the wireless signal transceiver 100, the area shape center FZC1 may be the feeding point and the midpoint of the first side D1 of the antenna AN, and the area shape center FZC2 may be the feeding point and the midpoint of the second side D2 of the antenna AN. Therefore, in this article, the feeding point or the midpoint of the first side D1 and the second side D2 of the antenna AN of the wireless signal transceiver 100 may be respectively Figure 1 The area shape centers FZC1 and FZC2.

[0174] According to an embodiment, for example, Figure 1 The wireless signal transceiver 100 and Fig.51The wireless signal transceiver 4800 can be used to transmit a wireless signal STX according to a transmission signal ST1 in at least one time period, and substantially simultaneously receive a wireless signal SRX. The wireless signal SRX may include a wireless signal STX reflected by an object OBJ. For example, after a round trip time, the wireless signal STX may be transmitted from the antenna AN to the object OBJ and reflected back to the antenna AN, so that the antenna AN starts to receive the wireless signal SRX. At the same time, the antenna AN may continue to transmit the wireless signal STX. From then on, the antenna AN may simultaneously transmit the wireless signal STX and receive the wireless signal SRX. Before the antenna AN stops transmitting the wireless signal STX, the antenna AN may simultaneously transmit the wireless signal STX and receive the wireless signal SRX within a time period, and the time period may be 0.2, 0.5, 1 or 5 seconds. The length of the time period may be determined according to the application scenario, or may be other time lengths. The transmitting circuit 110 may be used to generate the transmitting signal ST1 and output the transmitting signal ST1 to the first side D1 of the antenna AN. The receiving circuit 120 may be used to receive the receiving signal SR1 from the second side D2 of the antenna AN. The antenna AN may output a receiving signal SR1 according to the wireless signal SRX. The first side D1 of the antenna AN may be different from the second side D2 of the antenna AN.

[0175] According to an embodiment, Figure 1 The wireless signal transceiver 100 and Fig.51 The wireless signal transceiver 4800 may further include a processing unit, such as Fig. 9 Processing unit PU or Fig.16 The processing unit PU may be coupled to the transmitting circuit 110 and the receiving circuit 120. Figure 1 or Fig.51 The transmitting circuit 110 can be used to generate a transmitting signal ST1 according to an input signal SI. The input signal SI can also be input to a processing unit. Figure 1 or Fig.51 The receiving circuit 120 can be further configured to generate a processing signal SA according to the receiving signal SR1, and output the processing signal SA to the processing unit. The processing unit can be configured to generate spatial information of the object OBJ according to the values ​​of the processing signal SA and the input signal SI, wherein the processing signal SA and the input signal SI can correspond to a signal received and a signal transmitted substantially simultaneously, respectively.

[0176] According to an embodiment, for example, Figure 1 The wireless signal transceiver 100 and Fig.51 In the wireless signal transceiver 4800, the direction from the midpoint MP1 of the first side D1 to the antenna shape center CT of the antenna AN can be defined as the direction DR1, and the direction from the midpoint MP2 of the second side D2 to the antenna shape center CT of the antenna AN can be defined as the direction DR2. Figure 1 and Fig.51As shown, direction DR1 may be orthogonal to direction DR2.

[0177] According to an embodiment, for example, Figure 1 The wireless signal transceiver 100 and Fig.51 In the wireless signal transceiver 4800, the first side D1 of the antenna AN may be adjacent to the second side D2 of the antenna AN, wherein the transmitting circuit 110 may feed the transmitting signal ST1 to the first side D1, and the second side D2 may feed the receiving signal SR1 to the receiving circuit 120.

[0178] According to an embodiment, for example, Figure 1 The wireless signal transceiver 100 and Fig.51 In the wireless signal transceiver 4800, the first side D1 of the antenna AN can be orthogonal to the second side D2 of the antenna AN, wherein the transmitting circuit 110 can feed the transmitting signal ST1 to the first side D1, and the second side D2 can feed the receiving signal SR1 to the receiving circuit 120.

[0179] According to an embodiment, for example, Figure 1 The wireless signal transceiver 100 and Fig.51 In the wireless signal transceiver 4800, the transmitting circuit 110 can be used to output a transmitting signal ST1 to feed into a feeding point FP1 on a first side D1 of the antenna AN, and the receiving circuit 120 can be used to receive a receiving signal SR1 from a feeding point FP2 on a second side D2 of the antenna AN.

[0180] According to an embodiment, for example, Figure 1 The wireless signal transceiver 100 and Fig.51 In the wireless signal transceiver 4800, the direction from the feed point FP1 of the first side D1 to the antenna shape center CT of the antenna AN can be defined as the direction DR1, and the direction from the feed point FP2 of the second side D2 to the antenna shape center CT of the antenna AN can be defined as the direction DR2. Figure 1 and Fig.51 As shown, direction DR1 may be orthogonal to direction DR2.

[0181] According to an embodiment, for example, Figure 1 The wireless signal transceiver 100 and Fig.51 In the wireless signal transceiver 4800, the first side D1 of the antenna AN may include a concave portion, and the feed point FP1 is located therein. The second side D2 of the antenna AN may include a concave portion, and the feed point FP2 is located therein.

[0182] Fig.52Schematic diagram of a wireless signal transceiver 4900 in another embodiment. The wireless signal transceiver 4900 may include an antenna AN, a feed element F1, a feed element F2, a transmitting circuit 110, and a receiving circuit 120. The antenna AN may be a dual-polarized antenna, which may include a first side D1 and a second side D2, and the first side D1 and the second side D2 may include a first concave portion and a second concave portion, respectively. The transmitting circuit 110 may be coupled to a feed point FP1 of the feed element F1 corresponding to the first side D1 of the antenna AN. The receiving circuit 120 may be coupled to a feed point FP2 of the feed element F2 corresponding to the second side D2 of the antenna AN. The wireless signal transceiver 4900 may be Figure 6 The wireless signal transceiver device 600 also has an example of a first concave portion and a second concave portion, and the operation of the wireless signal transceiver device 4900 can be similar to that of the wireless signal transceiver device 600. Fig.52 In, with Figure 6 Elements with the same reference numerals may be operated as described above. Figure 6 described.

[0183] exist Fig.52 In the wireless signal transceiver 4900, the feed point FP1 may be located at the feed element F1. When the transmitting circuit 110 feeds the transmission signal ST1 to the feed point FP1, the feed element F1 may feed the transmission signal ST1 to the first side D1 of the antenna AN through electromagnetic induction, and may form a feeding area FZ1. The feeding area FZ1 may have an area shape center FZC1. Fig.52 As shown, the area shape center FZC1 may overlap the midpoint MP1 of the first concave portion and the first side D1. The feed point FP2 may be located at the feed element F2. When the antenna AN feeds the receiving signal SR1 from the second side D2 to the feeding element F2 through electromagnetic induction, the receiving circuit 120 may receive the receiving signal SR1 from the feed point FP2, and a feeding area FZ2 may be formed. The feeding area FZ2 may have an area shape center FZC2. Fig.52 As shown, the zone shape center FZC2 may overlap the second concave portion and the midpoint MP2 of the second side D2.

[0184] According to an embodiment, for example, Figure 6 The wireless signal transceiver 600 and Fig.52In the wireless signal transceiver 4900, the feeding element F1 may correspond to the first side D1 of the antenna AN, and the feeding element F2 may correspond to the second side D2 of the antenna AN. The transmitting circuit 110 may be used to output the transmitting signal ST1 to the feeding point FP1 of the feeding element F1. The feeding element F1 may feed the transmitting signal ST1 to the first side D1 of the antenna AN through electromagnetic induction. The receiving signal SR1 may be fed to the feeding element F2 from the second side D2 of the antenna AN. The receiving circuit 120 may be used to receive the receiving signal SR1 from the feeding point FP2 of the feeding element F2.

[0185] According to an embodiment, for example, Figure 6 The wireless signal transceiver 600 and Fig.52 In the wireless signal transceiver 4900, the antenna AN can be used to transmit the wireless signal STX according to the transmission signal ST1 in at least one time period, and substantially simultaneously receive the wireless signal SRX. The wireless signal SRX may include the wireless signal STX reflected by the object OBJ. For example, after a round trip time, the wireless signal STX may be transmitted from the antenna AN to the object OBJ and reflected back to the antenna AN, so that the antenna AN starts to receive the wireless signal SRX. At the same time, the antenna AN may continue to transmit the wireless signal STX. From then on, the antenna AN can simultaneously transmit the wireless signal STX and receive the wireless signal SRX. Before the antenna AN stops transmitting the wireless signal STX, the antenna AN can simultaneously transmit the wireless signal STX and receive the wireless signal SRX within a time period, and the time period can be 0.2, 0.5, 1 or 5 seconds. The length of the time period may be determined according to the application scenario, or it may be other time lengths.

[0186] According to an embodiment, Figure 6 The wireless signal transceiver 600 and Fig.52 The wireless signal transceiver 4900 may further include a processing unit, such as Fig. 9 Processing unit PU, or Fig.16 The processing unit PU may be coupled to the transmitting circuit 110 and the receiving circuit 120. Figure 6 or Fig.52 The transmitting circuit 110 can be used to generate a transmitting signal ST1 according to an input signal SI. The input signal SI can also be input to a processing unit. Figure 6 or Fig.52 The receiving circuit 120 can be further configured to generate a processing signal Sa according to the receiving signal SR1, and output the processing signal SA to the processing unit. The processing unit can be configured to generate spatial information of the object OBJ according to the values ​​of the processing signal SA and the input signal SI, wherein the processing signal SA and the input signal SI can correspond to a signal received and a signal transmitted substantially simultaneously, respectively.

[0187] According to an embodiment, for example, Fig.52In the wireless signal transceiver 4900, the first side D1 of the antenna AN includes a first concave portion, and the second side D2 of the antenna AN includes a second concave portion. The feeding element F1 can be used to feed the transmission signal ST1 to the first concave portion of the first side D1 through electromagnetic induction, and the reception signal SR1 can be fed to the feeding element F2 from the second concave portion of the second side D2.

[0188] Fig.53 1 is a schematic diagram of a wireless signal transceiver 5000 in another embodiment. The wireless signal transceiver 5000 may include an antenna AN, a transmitting circuit 110, and a receiving circuit 120. The antenna AN may be a dual-polarized antenna. The transmitting circuit 110 may be coupled to a feed point FP1 at a corner of the antenna AN, and the receiving circuit 120 may be coupled to a feed point FP2 at a corner of the antenna AN. Figure 1 The present invention is an alternative embodiment of the wireless signal transceiving device 100, and its operation may be similar to that of the wireless signal transceiving device 100. Fig.53 In, with Figure 1 Elements with the same reference numerals may be operated as described above. Figure 1 described.

[0189] In the wireless signal transceiver 5000, when the transmitting circuit 110 feeds the transmitting signal ST1 to the feeding point FP1, a feeding zone FZ1 may be formed, and the feeding zone FZ1 may have a zone shape center FZC1. Fig.53 As shown, the area shape center FZC1 may overlap the feeding point FP1. When the antenna AN feeds the receiving signal SR1 to the receiving circuit 120, a feeding area FZ2 may be formed, and the feeding area FZ2 may have an area shape center FZC2. Fig.53 As shown, the zone shape center FZC2 may overlap the feeding point FP2.

[0190] According to an embodiment, for example, Figure 1 The wireless signal transceiver 100 and Fig.53The wireless signal transceiver 5000 can be used to transmit a wireless signal STX according to a transmission signal ST1 in at least one time period, and substantially simultaneously receive a wireless signal SRX. The wireless signal SRX may include a wireless signal STX reflected by an object OBJ. For example, after a round trip time, the wireless signal STX may be transmitted from the antenna AN to the object OBJ and reflected back to the antenna AN, so that the antenna AN starts to receive the wireless signal SRX. At the same time, the antenna AN may continue to transmit the wireless signal STX. From then on, the antenna AN may simultaneously transmit the wireless signal STX and receive the wireless signal SRX. Before the antenna AN stops transmitting the wireless signal STX, the antenna AN may simultaneously transmit the wireless signal STX and receive the wireless signal SRX within a time period, and the time period may be 0.2, 0.5, 1 or 5 seconds. The length of the time period may be determined according to the application scenario, or may be other time lengths.

[0191] According to an embodiment, the wireless signal transceiver device 5000 may further include a processing unit, such as Fig. 9 Processing unit PU or Fig.16 The processing unit PU may be coupled to the transmitting circuit 110 and the receiving circuit 120. Fig.53 The transmitting circuit 110 can be used to generate a transmitting signal ST1 according to an input signal SI. The input signal SI can also be input to a processing unit. Fig.53 The receiving circuit 120 can be further configured to generate a processing signal SA according to the receiving signal SR1, and output the processing signal SA to the processing unit. The processing unit can be configured to generate spatial information of the object OBJ according to the values ​​of the processing signal SA and the input signal SI, wherein the processing signal SA and the input signal SI can correspond to a signal received and a signal transmitted substantially simultaneously, respectively.

[0192] The transmitting circuit 110 may be used to generate a transmitting signal ST1 and output the transmitting signal ST1 to a feed point FP1 of an antenna AN. The receiving circuit 120 may be used to receive a receiving signal SR1 from a feed point FP2 of the antenna AN. The antenna AN may output the receiving signal SR1 according to the wireless signal SRX. A direction DR1 may be defined from the feed point FP1 to the antenna shape center CT of the antenna AN, and a direction DR2 may be defined from the feed point FP2 to the antenna shape center CT of the antenna AN. The direction DR1 may be orthogonal to the direction DR2. According to other embodiments, for example, similar to Fig.14 , the acute angle formed by direction DR1 and direction DR2 may not be less than 45 degrees.

[0193] According to an embodiment, for example, Figure 1 The wireless signal transceiver 100 and Fig.53 In the wireless signal transceiver 5000, the feeding point FP1 may be located at the antenna AN, and the feeding point FP2 may be located at the antenna AN.

[0194] Fig.54 Schematic diagram of a wireless signal transceiver 5100 in another embodiment. The wireless signal transceiver 5100 may include an antenna AN, a feed element F1, a feed element F2, a transmitting circuit 110, and a receiving circuit 120. The antenna AN may be a dual-polarization antenna, which may include a first side D1 and a second side D2. The transmitting circuit 110 may be coupled to a feed point FP1 of the feed element F1 corresponding to the first side D1 of the antenna AN. The receiving circuit 120 may be coupled to a feed point FP2 of the feed element F2 corresponding to the second side D2 of the antenna AN. The wireless signal transceiver 5100 may be Figure 6 The example of the wireless signal transceiver 600 in which the feeding elements F1 and F2 are placed below the antenna AN, and its operation is similar to that of the wireless signal transceiver 600. Fig.54 In, with Figure 6 Elements with the same reference numerals may be operated as described above. Figure 6 described.

[0195] exist Fig.54 In the wireless signal transceiver 5100, the feed point FP1 may be located at the feed element F1. When the transmitting circuit 110 feeds the transmission signal ST1 to the feed point FP1, the feeding element F1 may feed the transmission signal ST1 to the antenna AN through electromagnetic induction, and a feeding area FZ1 may be formed. The feeding area FZ1 may have a regional shape center FZC1. The feed point FP2 may be located at the feeding element F2. When the antenna AN feeds the receiving signal SR1 to the feeding element F2 through electromagnetic induction, the receiving circuit 120 may receive the receiving signal SR1 from the feed point FP2, and a feeding area FZ2 may be formed. The feeding area FZ2 may have a regional shape center FZC2.

[0196] According to an embodiment, for example, Figure 6 The wireless signal transceiver 600, Fig.54 The wireless signal transceiver 5100 and Fig.14 The wireless signal transceiver may include feeding elements F1 and F2. The feeding element F1 may include a feeding point FP1 and is used to feed the transmission signal ST1 to the antenna AN through electromagnetic induction. The feeding element F2 may include a feeding point FP2, and the receiving signal SR1 may be fed from the antenna AN to the feeding element F2 through electromagnetic induction.

[0197] According to an embodiment, for example, Fig.54In the wireless signal transceiver 5100, the antenna AN can be used to transmit the wireless signal STX according to the transmission signal ST in at least one time period, and substantially simultaneously receive the wireless signal SRX. The wireless signal SRX may include the wireless signal STX reflected by the object OBJ. For example, after a round trip time, the wireless signal STX may be transmitted from the antenna AN to the object OBJ and reflected back to the antenna AN, so that the antenna AN starts to receive the wireless signal SRX. At the same time, the antenna AN may continue to transmit the wireless signal STX. From then on, the antenna AN can simultaneously transmit the wireless signal STX and receive the wireless signal SRX. Before the antenna AN stops transmitting the wireless signal STX, the antenna AN can simultaneously transmit the wireless signal STX and receive the wireless signal SRX within a time period, and the time period can be 0.2, 0.5, 1 or 5 seconds. The length of the time period can be determined according to the application scenario, or it can be other time lengths.

[0198] According to an embodiment, the wireless signal transceiver device 5100 may further include a processing unit, such as Fig. 9 Processing unit PU or Fig.16 The processing unit PU may be coupled to the transmitting circuit 110 and the receiving circuit 120. Fig.54 The transmitting circuit 110 can be used to generate a transmitting signal ST1 according to an input signal SI. The input signal SI can also be input to a processing unit. Fig.54 The receiving circuit 120 can be further configured to generate a processing signal SA according to the receiving signal SR1, and output the processing signal SA to the processing unit. The processing unit can be configured to generate spatial information of the object OBJ according to the values ​​of the processing signal SA and the input signal SI, wherein the processing signal SA and the input signal SI can correspond to a signal received and a signal transmitted substantially simultaneously, respectively.

[0199] Fig.55 Schematic diagram of a wireless signal transceiver 5200 in another embodiment. The wireless signal transceiver 5200 may include an antenna AN, a transmitting circuit 110, a sensing circuit SC, and a processing unit PU. The antenna AN may be a dual-polarized antenna, which may receive a transmitting signal ST1 and output a receiving signal SR1. The antenna AN may be used to transmit a wireless signal STX according to the transmitting signal ST1, and to receive a wireless signal SRX, wherein the wireless signal SRX may include a wireless signal STX reflected by an object OBJ. The antenna AN may transmit a wireless signal STX and receive a wireless signal SRX at the same time. The antenna AN may output a receiving signal SR1 according to the wireless signal SRX.

[0200] For example, the antenna AN may include a feed zone FZ1 and a feed zone FZ2. The antenna AN may receive a transmission signal ST1 through the feed zone FZ1 and output a reception signal SR1 through the feed zone FZ2.

[0201] The transmitting circuit 110 may be used to generate a transmitting signal ST1. The transmitting circuit 110 may include a first terminal and a second terminal, wherein the first terminal may be coupled to the antenna AN, the first terminal may output the transmitting signal ST1, and the second terminal may receive the input signal SI. The transmitting signal ST1 may be generated according to the input signal SI, for example, the transmitting circuit 110 amplifies the input signal SI to generate the transmitting signal ST1.

[0202] The sensing circuit SC may be used to receive a transmission signal ST1 from the transmitting circuit 110, receive a reception signal SR1 from the antenna AN, and output a processing signal SA. The sensing circuit SC may have a first terminal, a second terminal, and a third terminal. The first terminal of the sensing circuit SC may be coupled to the first terminal of the transmitting circuit 110 and the antenna AN to receive the transmission signal ST1 from the transmitting circuit 110. The second terminal of the sensing circuit SC may be coupled to the antenna AN to receive the reception signal SR1. The third terminal of the sensing circuit SC may be coupled to the processing unit PU and send the processing signal SA.

[0203] The processing unit PU may be configured to generate spatial information SF of the object OBJ according to the processed signal SA from the sensing circuit SC.

[0204] Since the sensing circuit SC can generate the processing signal SA according to the transmission signal ST1 and the receiving signal SR1, the processing unit PU can simply generate the spatial information SF of the object OBJ according to the processing signal SA without using the input signal SI. That is to say, excluding the power signal, bias signal or control signal, etc., which are used to maintain the normal operation of the processing unit PU, when the wireless signal transceiver 5200 has the input signal SI, the processing unit PU simply generates the spatial information SF of the object OBJ according to the processing signal SA without using the input signal SI. Further, if the wireless signal transceiver 5200 has an oscillator (not shown) to generate the input signal SI (for example, a continuous wave signal), the processing unit PU does not need to be connected to or directly coupled to the oscillator to reduce interference between the processing unit PU and the oscillator. According to an embodiment, the processing unit PU can generate the spatial information SF of the object OBJ according to an envelope signal, wherein the envelope signal can be generated according to the processing signal SA from the sensing circuit SC. For example, a filtering operation may be performed on the processed signal SA to generate the envelope signal, wherein the filtering operation may include a low-pass filtering and / or a square root filtering operation. The envelope signal may change according to the Doppler shift caused by the movement of the object OBJ, so the processing unit PU may generate the spatial information SF of the object OBJ according to the change of the envelope signal.

[0205] Fig.56AFIG. 5 is a schematic diagram of a wireless signal transceiver 5300 in another embodiment. Fig.55 and Fig.56A The similarities are not repeated here. Fig.56A As shown, the sensing circuit SC may include a receiving circuit 120 for receiving a receiving signal SR1. The receiving circuit 120 may include a first terminal and a second terminal, wherein the first terminal may be coupled to the second terminal of the sensing circuit SC to receive the receiving signal SR1.

[0206] For example, the antenna AN may be a dual-polarized antenna, the transmitting circuit 110 may be coupled to the feeding zone FZ1 of the antenna AN, and the receiving circuit 120 may be coupled to the feeding zone FZ2 of the antenna AN. Therefore, the transmitting circuit 110 may output the transmitting signal ST1 to the feeding zone FZ1, and the receiving circuit 120 may receive the receiving signal SR1 from the feeding zone FZ2.

[0207] Fig.56A In the embodiment, the transmitting circuit 110 may include an amplifier A1, and the amplifier A1 may include an input terminal and an output terminal, wherein the input terminal may receive an input signal SI, and the output terminal may output a transmitting signal ST1. The amplifier A1 may be a power amplifier (PA).

[0208] Fig.56A In the embodiment, the sensing circuit SC may further include a combining node 140. The combining node 140 may be coupled to the second end of the receiving circuit 120, the first end of the transmitting circuit 110 (that is, the end of the transmitting circuit 110 coupled to the antenna AN), and the third end of the sensing circuit SC. The combining node 140 may receive the transmitting signal ST1 and the signal SR' to generate a processing signal SA, wherein the signal SR' may be generated by the receiving circuit 120 according to the receiving signal SR1.

[0209] Fig.56A In the embodiment, the sensing circuit SC may further include a sensing element 150, and the sensing element 150 may be coupled to the transmitting circuit 110 and the combining node 140. The sensing element 150 may be a conductive line between the transmitting circuit 110 and the combining node 140, and may be used to transmit the transmitting signal ST1 to the combining node 140. The sensing element 150 may be used to selectively provide matching impedance for the antenna AN. According to other embodiments, the sensing element 150 may include a resistor, an inductor, and / or a capacitor to form a network to provide matching impedance for the antenna AN.

[0210] For example, the combining node 140 may include a conductive node coupled between the sensing element 150, the receiving circuit 120 and the processing unit PU. In this structure, the combining node 140 may be used to perform an addition operation to add the transmission signal ST1 and the signal SR' from the receiving circuit 120 to generate the processing signal SA.

[0211] According to an embodiment, the receiving circuit 120 may be a conductive line, including a first end and a second end. The first end of the receiving circuit 120 may be coupled to the antenna 120 through the second end of the sensing circuit SC. The second end of the receiving circuit 120 may be coupled to the combining node 140. When the receiving circuit 120 is a conductive line, the signal SR' may be equal to the receiving signal SR1, and the combining node 140 may combine the transmitting signal ST1 with the receiving signal SR1 to generate the processing signal SA.

[0212] The spatial information SF may be related to the movement of the object OBJ and may be generated by the processing unit PU. According to an embodiment, the processing unit PU may include an envelope detection circuit 162 and a motion detector 164. The input signal SI may be a continuous wave (CW) signal generated by an oscillator. The processing signal SA may be a self-envelope modulation (SEM) signal. The amplifier A1 may be used to amplify the input signal SI (continuous wave signal) and output the transmission signal ST1 to the antenna AN and the sensing circuit SC. When the object OBJ moves, a Doppler shift may be induced, and the Doppler shift may cause the envelope of the processing signal SA (self-envelope modulation signal) to change accordingly. In other words, the Doppler shift caused by the movement of the object OBJ may be modulated on the envelope of the processing signal SA (self-envelope modulation signal) at the junction node 140. The envelope detection circuit 162 may be used to capture the signal envelope of the processing signal SA (self-envelope modulation signal). The motion detector 164 can be used to determine whether the motion of the object OBJ is detected according to the change of the captured signal envelope. According to an embodiment, the processing unit PU can determine whether the motion of the object OBJ is detected according to at least one threshold, wherein the motion detector 164 can determine whether the motion of the object OBJ is detected according to whether the envelope change of the processed signal SA (self-envelope modulation signal) exceeds the threshold.

[0213] For example, the envelope detection circuit 162 may include a rectifier 1622 and a low pass filter (LPF) 1624. The rectifier 1622 may be a rectifier circuit or a processor. When the rectifier 1622 is a processor, it may execute instructions stored in a memory to rectify the processing signal SA (self-envelope modulation signal). The low pass filter 1624 may be a low pass filter circuit or a processor. When the low pass filter 1624 is a processor, it may execute instructions stored in a memory to perform low pass filtering on the rectified processing signal SA (self-envelope modulation signal).

[0214] Fig.56B Schematic diagram of the wireless signal transceiver 5302 in an embodiment. Fig.56A and Fig.56BThe similarities are not repeated. Fig.56B As shown, the receiving circuit 120 may include an amplifier A2, and the amplifier A2 may include an input terminal and an output terminal. The input terminal of the amplifier A2 may be coupled to the first terminal of the receiving circuit 120, and the output terminal of the amplifier A2 may be coupled to the second terminal of the receiving circuit 120. The input terminal of the amplifier A2 may be coupled to the antenna AN and used to receive the receiving signal SR1. The output terminal of the amplifier A2 may be coupled to the combining node 140 and used to output the amplified receiving signal, that is, the signal SR1'. The combining node 140 may combine the transmitting signal ST1 with the amplified receiving signal (that is, the signal SR1') to generate a processing signal SA. The amplifier A2 may be a low noise amplifier (LNA)

[0215] Fig.55 , Fig.56A and Fig.56B In the embodiment, the sensing circuit SC, the transmitting circuit 110 and the processing unit PU may be disposed in an integrated circuit (IC), such as a radar chip. In addition, the transmitting circuit 110 and the processing unit PU may be disposed in the same chip.

[0216] Fig.57 FIG. 5 is a schematic diagram of the layout of the wireless signal transceiver 5400 in another embodiment. Fig.55 , Fig.56A , Fig.56B and Fig.57 The port 5405 and the port 5407 may be coupled to the antenna AN. The transmission signal ST1 may be transmitted to the antenna AN through the port 5405 and the feeding zone FZ1. The reception signal SR1 may be transmitted from the antenna AN to the receiving circuit 120 through the feeding zone FZ2 and the port 5407. Fig.57 In the embodiment, the receiving circuit 120 may include a conductive line and / or an amplifier (eg, a low noise amplifier). Fig.57 , the wireless signal transceiver 5400 may include a matching network 5410, and the matching network 5410 may be coupled between the antenna AN and the sensing element 150. The wireless signal transceiver 5400 may further include a matching network 5420, and the matching network 5420 may be coupled between the sensing element 150 and the transmitting circuit 110. The wireless signal transceiver 5400 may further include a matching network 5430, and the matching network 5430 may be coupled between the antenna AN and the processing unit PU.

[0217] The matching network 5410 may provide appropriate antenna matching impedance, the matching circuit 5420 may provide appropriate transmit matching impedance, and the matching circuit 5430 may provide appropriate receive matching impedance. Fig.57In the wireless signal transceiver 5400, a matching network 5410, 5420 and 5430 is included. Fig.57 For example only, each of the matching networks 5410 , 5420 , and 5430 may be selectively omitted as required.

[0218] Fig.58 This is a schematic diagram of the layout of the wireless signal transceiver 5500 in another embodiment. Fig.55 , Fig.56A ,and Fig.58 , the inductive element 150 may be coupled between the port 5510 and the port 5520, and may provide matching impedance for the antenna AN. According to an embodiment, the inductive element 150 may be further disposed between the port 5510 and the port 5520, and / or connected between the port 5510 and the port 5520. The port 5510 and the port 5520 may be coupled to the antenna AN. The transmission signal ST1 may be transmitted to the antenna AN through the port 5510. The reception signal SR1 may be transmitted from the antenna AN to the reception circuit 120 through the port 5520. Fig.58 In the embodiment, the inductive element 150 may include a conductive line, a resistor, a capacitor and / or an inductor to provide matching impedance. The receiving circuit 120 may be a conductive line. The wireless signal transceiver 5500 may include a matching network 5560 and a matching network 5580. The matching network 5560 may be coupled between the port 5510 and the transmitting circuit 110, and the matching network 5580 may be coupled between the receiving circuit 120 and the processing unit PU. The matching network 5560 may be a transmitting matching network, and the matching network 5580 may be a receiving matching network. The inductive element 150 may provide appropriate antenna impedance matching, the matching network 5560 may provide appropriate transmitting impedance matching, and the matching network 5580 may provide appropriate receiving impedance matching. Compared with the wireless signal transceiver 5400, the inductive element 150 of the wireless signal transceiver 5500 may also provide the function of the matching network 5410 of the wireless signal transceiver 5400, so Fig.58 The area occupied by the medium impedance network can be reduced. Fig.58 For example, each of the matching network 5560 and the matching network 5580 may be selectively omitted.

[0219] According to an embodiment, Fig.57 and Fig.58The antenna AN of the wireless signal transceiver device 5400 and 5500 may be formed on the first metal layer of the circuit board, and the circuit board may be, for example (but not limited to), a printed circuit board (PCB). Other parts of the wireless signal transceiver device 5400 and the wireless signal transceiver device 5500, such as the transmitting circuit 110, the receiving circuit 120, the combining node 140, the sensing element 150, the matching network 5410, the matching network 5420, the matching network 5430, the matching network 5560, the matching network 5580, the port 5405, the port 5407, the port 5510, the port 5520 and the processing unit PU may be formed on the second metal layer of the circuit board, wherein the first metal layer may be different from the second metal layer.

[0220] In another embodiment, the wireless signal transceiver device 5400 and other parts of the wireless signal transceiver device 5500, such as the transmitting circuit 110, the receiving circuit 120, the coupling node 140, the sensing element 150, the matching network 5410, the matching network 5420, the matching network 5430, the matching network 5560, the matching network 5580, the port 5405, the port 5407, the port 5510, the port 5520 and the processing unit PU can be formed on the second metal layer and / or the third metal layer of the circuit board, wherein the first metal layer may be different from the second metal layer and the third metal layer.

[0221] Fig.59 Schematic diagram of a wireless signal transceiver 5600 in another embodiment. The wireless signal transceiver 5600 may include an antenna AN, a transmitting circuit 110, and a processing unit PU. The transmitting circuit 110 may include a first end and a second end, wherein the first end may be coupled to a feeding area FZ1 of the antenna AN, and the second end may receive an input signal SI. The processing unit PU may include a first end and a second end, wherein the first end may be coupled to a feeding area FZ2 of the antenna AN, and the second end may output spatial information SF of the object OBJ.

[0222] Similar to Fig.55 , Fig.56A and Fig.56B ,exist Fig.59 In the embodiment, the antenna AN can be used to transmit a wireless signal STX according to a transmission signal ST1, and receive a wireless signal SRX, wherein the wireless signal SRX may include a wireless signal STX reflected by an object OBJ. The antenna AN can simultaneously transmit the wireless signal STX and receive the wireless signal SRX. The transmitting circuit 110 can generate the transmission signal ST1 according to the input signal SI, for example, the transmitting circuit 110 amplifies the input signal SI to generate the transmission signal ST1. Compared to Fig.55 , Fig.56A and Fig.56B ,exist Fig.59In the embodiment, the antenna AN can output the receiving signal SR1 according to the wireless signal SRX and the transmitting signal ST1. The isolation between the transmitting signal ST1 and the receiving signal SR1 can be not less than 7 decibels (dB). For example, the isolation can be greater than 8 decibels, such as Fig.14 and Fig.15 According to an embodiment, the isolation between the transmission signal ST1 and the reception signal SR1 may be no greater than 60 decibels, which is more suitable for a self-envelope modulation signal.

[0223] The position of the portion (e.g., the feeding area) of the antenna AN for transmitting and receiving the transmission signal ST1 and the reception signal SR1 can be adjusted to adjust the isolation to an appropriate value so that the transmission signal ST1 can leak from the feeding area FZ1 to the feeding area FZ2 through the antenna AN. Therefore, when the reception signal SR1 is generated, it can be affected by the transmission signal ST1, so the reception signal SR1 can be a combination of the wireless signal SRX and the leakage portion of the transmission signal ST1. In other words, the reception signal SR1 can be generated based on the wireless signal SRX and the transmission signal ST1, and the processing unit PU can simply generate the spatial information SF of the object OBJ based on the reception signal SR1 without using the input signal SI. In other words, excluding the power signal, bias signal or control signal... signals that maintain the normal operation of the processing unit PU, when the wireless signal transceiver 5600 has the input signal SI, the processing unit PU simply generates the spatial information SF of the object OBJ based on the processing signal SA without using the input signal SI. Furthermore, if the wireless signal transceiver 5600 has an oscillator (not shown) to generate the input signal SI (e.g., a continuous wave signal), the processing unit PU does not need to be connected to or directly coupled to the oscillator to reduce interference between the processing unit PU and the oscillator. Fig.59 The received signal SR1 may have Fig.55 , Fig.56A and Fig.56B According to another embodiment, the position of the portion of the antenna AN used for transmitting and receiving the transmission signal ST1 and the reception signal SR1 (e.g., the feeding area) can be adjusted to provide a proper antenna matching impedance, so that the matching network 5410 or the inductive element 150 can be selectively omitted to further reduce the circuit area.

[0224] For example, the isolation between the transmission signal ST1 and the reception signal SR1 may be between 10 dB and 15 dB. Fig.14 and Fig.15 As shown, the acute angle θ formed between the direction DR1 and the direction DR2 may be between 55 degrees and 70 degrees, which is more suitable for the self-envelope modulation signal.

[0225] Fig.59 In the embodiment, the processing unit PU can generate the spatial information SF of the object OBJ according to the received signal SR1 from the antenna AN, instead of Fig.55 , Fig.56A and Fig.56B As shown, the spatial information SF of the object OBJ is generated according to the processed signal SA. For example, the processing unit PU may generate the spatial information SF of the object OBJ according to the envelope signal of the received signal SR1 directly from the antenna AN.

[0226] According to an embodiment, a filtering operation (e.g., a low-pass filtering operation) may be performed on the received signal SR1 to generate an envelope signal. The envelope signal may change according to the Doppler shift caused by the movement of the object OBJ, so the processing unit PU may generate the spatial information SF of the object OBJ according to the change of the envelope signal.

[0227] Similar to Fig.55 , Fig.56A and Fig.56B ,exist Fig.59 In the example, the spatial information SF (e.g., the movement of the object OBJ) may be generated by the processing unit PU. The processing unit PU may include an envelope detection circuit 162 and a motion detector 164, which may be configured as follows: Fig.56A and Fig.56B As shown. The input signal SI may be a continuous wave (CW) signal generated by an oscillator, and the received signal SR1 may be a self-envelope modulation (SEM) signal. The transmitting circuit 110 may include an amplifier for amplifying the input signal SI (continuous wave signal) and outputting the transmitting signal ST1 to the antenna AN. When the object OBJ moves, a Doppler shift may be induced, and the Doppler shift may cause the envelope of the received signal SR1 (self-envelope modulation signal) to change accordingly. In other words, the Doppler shift caused by the movement of the object OBJ may be modulated on the envelope of the received signal SR1 (self-envelope modulation signal). The envelope detection circuit 162 may be used to capture the signal envelope of the received signal SR1 (self-envelope modulation signal). The motion detector 164 may be used to determine whether the motion of the object OBJ is detected based on the change in the captured signal envelope.

[0228] According to an embodiment, the processing unit PU may determine whether the motion of the object OBJ is detected according to at least one threshold, wherein the motion detector 164 may determine whether the motion of the object OBJ is detected according to whether the envelope change of the received signal SR1 (self-envelope modulation signal) exceeds the threshold.

[0229] For example, the envelope detection circuit 162 may include a rectifier 1622 and a low pass filter (LPF) 1624. The rectifier 1622 may be a rectifier circuit or a processor. When the rectifier 1622 is a processor, it may execute instructions stored in a memory to rectify the received signal SR1 (self-envelope modulation signal). The low pass filter 1624 may be a low pass filter circuit or a processor. The low pass filter 1624 may be a low pass filter circuit or a processor. When the low pass filter 1624 is a processor, it may execute instructions stored in a memory to perform low pass filtering on the rectified received signal SR1 (self-envelope modulation signal).

[0230] For example, in Fig.59 In the embodiment, the first end of the transmitting circuit 110 can be coupled to the feeding area FZ1 of the antenna AN, and the first end of the processing unit PU can be coupled to the feeding area FZ2 of the antenna AN. The transmitting circuit 110 can output the transmitting signal ST1 to the feeding area FZ1 of the antenna AN, and the processing unit PU can receive the receiving signal SR1 from the feeding area FZ2 of the antenna AN. The positions of the feeding area FZ1 and the feeding area FZ2 can be adjusted so that the transmitting signal ST1 affects the receiving signal SR1, so as to generate the receiving signal SR1 according to the wireless signal SRX and the transmitting signal ST1.

[0231] Fig.59 In the embodiment, the transmitting circuit 110 and the processing unit PU may be disposed in an integrated circuit (IC), such as a radar chip.

[0232] According to an embodiment, Figure 55 to Figure 59 Antenna AN can be used Figures 1 to 14 and Figure 16 to Figure 54 The antenna is realized.

[0233] Figure 55 to Figure 59 In the embodiment, the processing signal SA or the receiving signal SR1 can be generated according to the wireless signal SRX and the transmitting signal ST1, and the processing signal SA or the receiving signal SR1 can be used to generate an envelope signal, wherein the envelope signal includes information about the movement of the object OBJ. Therefore, the embodiment can provide a wireless signal transceiver with a simpler structure and a smaller size.

[0234] The above descriptions are only preferred embodiments of the present invention. All equivalent changes and modifications made according to the scope of the claims of the present invention should fall within the scope of the present invention.

Claims

1. A wireless signal transceiver, characterized in that: Include: A transmitting circuit, used for generating a transmitting signal according to an input signal; One antenna for: Transmitting a first wireless signal according to the transmission signal; When transmitting the first wireless signal, receiving a second wireless signal, the second wireless signal comprising a wireless signal reflected from an object; and Output a receiving signal according to the second wireless signal and the transmitting signal; and A processing unit is used for receiving a receiving signal from the antenna and generating spatial information of the object according to the receiving signal without receiving the input signal.

2. The wireless signal transceiver device according to claim 1, characterized in that: The transmitting circuit amplifies the input signal to generate the transmitting signal.

3. The wireless signal transceiver device according to claim 1, characterized in that: The processing unit is used to determine whether a movement of the object is detected according to an envelope signal.

4. The wireless signal transceiver device according to claim 3, characterized in that: The input signal is a continuous wave signal.

5. The wireless signal transceiver according to claim 3, characterized in that: The processing unit further includes an envelope detection circuit and a motion detector.

6. The wireless signal transceiver device according to claim 5, characterized in that: The envelope detection circuit includes a rectifier and a low-pass filter.

7. The wireless signal transceiver according to claim 1, characterized in that: The isolation between the transmitting signal and the receiving signal is not less than 7 decibels.

8. The wireless signal transceiver according to claim 7, characterized in that: The isolation between the transmitting signal and the receiving signal is 10 to 15 decibels.

9. The wireless signal transceiver according to claim 1, wherein: The transmitting circuit is used to output the transmitting signal to a first feeding area of ​​the antenna, and the receiving signal comes from a second feeding area of ​​the antenna.

10. A wireless signal transceiver, characterized in that: Include: A transmitting circuit, used to generate a transmitting signal; One antenna for: Transmitting a first wireless signal according to the transmission signal; and When transmitting the first wireless signal, receiving a second wireless signal, the second wireless signal comprising a wireless signal reflected from an object; an induction circuit for receiving the transmission signal and a reception signal from the antenna, the induction circuit comprising a reception circuit for receiving the reception signal, the antenna outputting the reception signal according to the second wireless signal; and A processing unit is used to generate spatial information of the object according to a processing signal output by the sensing circuit.

11. The wireless signal transceiver according to claim 10, characterized in that: The sensing circuit further comprises a combining node for receiving the transmitting signal and generating the processing signal.

12. The wireless signal transceiver according to claim 11, characterized in that: The receiving circuit is a conductive wire, comprising: a first end coupled to the antenna; and a second end coupled to the junction node; The combining node generates the processed signal by combining the transmitting signal and the receiving signal.

13. The wireless signal transceiver according to claim 11, characterized in that: The receiving circuit includes an amplifier, including: an input terminal coupled to the antenna for receiving the receiving signal; and an output terminal, coupled to the combining node, for outputting an amplified receiving signal; The combining node generates the processed signal by combining the transmitting signal and the amplified receiving signal.

14. The wireless signal transceiver according to claim 11, wherein: The device further comprises a sensing element coupled between the transmitting circuit and the combining node.

15. The wireless signal transceiver device according to claim 14, characterized in that: The combining node includes a conductive node coupled between the sensing element, the receiving circuit and the processing unit.

16. The wireless signal transceiver according to claim 14, characterized in that: Also includes: a first matching network coupled between the antenna and the inductive element; or A second matching network is coupled between the inductive element and the transmitting circuit.

17. The wireless signal transceiver according to claim 14, wherein: Also includes: A third matching network is coupled between the antenna and the processing unit.

18. The wireless signal transceiver according to claim 14, characterized in that: The sensing element includes a conductive circuit, a resistor, an inductor and / or a capacitor.

19. The wireless signal transceiver according to claim 14, characterized in that: in: The transmit signal is transmitted to the antenna via a first port and a feed region of the antenna, and the receive signal is transmitted via a second feed region and a second port of the antenna; and The sensing element is coupled between the first port and the second port.

20. A wireless signal transceiver, characterized in that: Include: A transmitting circuit, used to generate a transmitting signal; One antenna for: Transmitting a first wireless signal according to the transmission signal; When transmitting the first wireless signal, receiving a second wireless signal, the second wireless signal comprising a wireless signal reflected from an object; and Output a receiving signal according to the second wireless signal and the transmitting signal; and A processing unit is used to receive a receiving signal from the antenna and generate spatial information of the object according to the receiving signal; wherein an isolation between the transmitting signal and the receiving signal is not greater than 60 decibels.

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