CN107181516B

CN107181516B - Antenna signal transmission device and antenna signal transmission method

Info

Publication number: CN107181516B
Application number: CN201610134010.3A
Authority: CN
Inventors: 陈鸿图
Original assignee: Mitac Computer Kunshan Co Ltd; Getac Technology Corp
Current assignee: Mitac Computer Kunshan Co Ltd; Getac Technology Corp
Priority date: 2016-03-10
Filing date: 2016-03-10
Publication date: 2021-02-12
Anticipated expiration: 2036-03-10
Also published as: CN107181516A

Abstract

The invention relates to an antenna signal transmission device and an antenna signal transmission method. By the antenna signal transmission device and the antenna signal transmission method, the transmission angle information corresponding to the radio frequency input signal is quickly obtained by searching the transmission angle information according to the incident angle of the radio frequency input signal, and the antenna array is controlled to transmit the radio frequency output signal along the opposite direction of the incident direction of the radio frequency input signal, so that the direction of the communication device sending the radio frequency input signal can be obtained without waiting for the stage of processing the fundamental frequency signal, and the online action between the antenna signal transmission device and the communication device sending the radio frequency input signal can be quickly completed.

Description

Antenna signal transmission device and antenna signal transmission method

[ technical field ] A method for producing a semiconductor device

The present invention relates to an antenna, and more particularly, to an antenna signal transmission apparatus and an antenna signal transmission method.

[ background of the invention ]

Antennas are indispensable components of many wireless communication systems, and are widely seen in daily life with the advancement of communication technology. Generally, antennas are classified into an omni-directional (omni-directional) antenna, and a directional antenna according to directivity. Among them, a directional antenna transmits and receives electromagnetic energy in a specific direction, and thus can be widely and definitely applied to a wireless communication system mainly having directivity (fixed direction).

However, generally, when two wireless communication devices communicate with each other through an antenna, the received rf signal is usually converted into a baseband signal, and the direction of the other wireless communication device is known only at the stage of processing the baseband signal, so as to return the signal to complete the connection. Thus, the arrival direction of the rf signal can be known only after the baseband signal processing, and the direction of the opposite party cannot be known in real time and the transmitting angle of the return signal cannot be adjusted quickly, which may cause pointing error and unstable connection.

[ summary of the invention ]

The invention provides an antenna signal transmission device and an antenna signal transmission method, which can quickly transmit a radio frequency output signal corresponding to the incident direction of a radio frequency input signal so as to quickly finish the on-line action of the antenna signal transmission device.

The antenna signal transmission device comprises a plurality of antennas and a signal transmission control module. The plurality of antennas form an antenna array for receiving the rf input signal. The signal transmission control module searches the transmission angle information corresponding to the incident angle of the radio frequency input signal and controls the antenna array to transmit the radio frequency output signal corresponding to the incident direction of the radio frequency input signal according to the transmission angle information.

In an embodiment of the invention, the signal transmission control module includes a plurality of phase adjustment units, each of the phase adjustment units includes a lookup table unit, and the lookup table unit searches for transmission angle information of each antenna corresponding to an incident angle according to the incident angle of the radio frequency input signal, so that the phase adjustment units respectively output the feed-in signal to excite the antenna to generate a radiation beam according to the transmission angle information, and the antenna array transmits the radio frequency output signal.

In an embodiment of the invention, the transmission angle information includes phase difference information between the radiation beams generated by the antennas, and the phase difference information is determined according to phase differences between the rf input signals received by the antennas.

In an embodiment of the invention, each of the phase adjusting units further includes a feed-in signal generating unit, which is coupled to the corresponding look-up table unit and converts the power signal into a feed-in signal of the antenna corresponding to the power signal according to the transmission angle information provided by the look-up table unit.

In an embodiment of the invention, the feed-in signal generating unit includes a 90-degree multiplexer, a first adjustable gain amplifier, a second adjustable gain amplifier, a first 180-degree multiplexer, a second 180-degree multiplexer, a first switching unit, a second switching unit, and a third adjustable gain amplifier. The 90-degree combiner generates a first real part signal and a first imaginary part signal according to the power supply signal. The first adjustable gain amplifier is coupled to the 90-degree combiner and the look-up table unit, and is controlled by the look-up table unit to gain-amplify the first real part signal to generate a real part amplified signal. The second adjustable gain amplifier is coupled to the 90-degree combiner and the lookup table unit, and is controlled by the lookup table unit to gain-amplify the first imaginary part signal to generate an imaginary part amplified signal. The first 180-degree combiner is coupled to the first adjustable gain amplifier and generates a second real part signal and a third real part signal according to the real part amplified signal, wherein the phase difference between the second real part signal and the third real part signal is 180 degrees. The second 180-degree combiner is coupled to the second adjustable gain amplifier, and generates a second imaginary signal and a third imaginary signal according to the imaginary amplified signal, wherein the phase difference between the second imaginary signal and the third imaginary signal is 180 degrees. The first switching unit is coupled to the first 180-degree multiplexer and the lookup table unit, and is controlled by the lookup table unit to switch and output the second real part signal or the third real part signal. The second switching unit is coupled to the second 180-degree splitter and the lookup table unit, and is controlled by the lookup table unit to switch and output the second imaginary signal or the third imaginary signal. The synthesis unit is coupled to the first switching unit and the second switching unit, and synthesizes output signals of the first switching unit and the second switching unit to generate a synthesis signal. The third adjustable gain amplifier is coupled to the combining unit and the look-up table unit, and is controlled by the look-up table unit to amplify the combined signal so as to generate a feed-in signal for exciting each antenna to generate a radiation beam.

In an embodiment of the invention, the signal transmission control module further includes a plurality of switching units, a plurality of phase detecting units, and an adding unit. The switching unit is coupled to the corresponding antenna and the phase adjusting unit respectively. Each phase detection unit is respectively coupled with the two corresponding switching units and the two corresponding antennas, and the phase detection units control the switching states of the switching units according to the signal receiving and transmitting states of the antennas and generate a plurality of phase data according to the radio frequency input signals received by the antennas. The addition unit is coupled to the plurality of phase detection units and the lookup table unit, and performs addition operation on the plurality of phase data to generate incident angle information to the lookup table unit, so that the lookup table unit provides emission angle information according to the incident angle information.

In an embodiment of the invention, the phase detecting units switch states of the corresponding switching units after outputting the phase data, so that each antenna is connected to the corresponding phase adjusting unit, and after a predetermined period of time, the state of the switching unit is switched again, so that each antenna is connected to the corresponding phase detecting unit.

The antenna signal transmission method of the present invention includes the following steps. An rf input signal is received through an antenna array formed by a plurality of antennas. And searching the transmission angle information corresponding to the incident angle of the radio frequency input signal. And controlling the antenna array to transmit the radio frequency output signal corresponding to the incident direction of the radio frequency input signal according to the transmission angle information.

In an embodiment of the invention, the antenna signal transmission method includes looking up the transmission angle information of each antenna corresponding to the incident angle from the lookup table corresponding to each antenna corresponding to the incident angle of the rf input signal.

In an embodiment of the invention, the transmission angle information includes phase difference information between the radiation beams generated by the antennas, and the phase difference information is determined according to a phase difference between the rf input signals received by the antennas.

In an embodiment of the invention, the step of controlling the antenna array to transmit the rf output signal corresponding to the incident direction of the rf input signal according to the transmission angle information includes the following steps. And converting the power supply signal into feed-in signals corresponding to the antennas according to the transmitting angle information. The feed-in signals are respectively output to the corresponding antennas to excite the antennas to generate radiation beams, so that the antenna array transmits radio frequency output signals.

Based on the above, the embodiment of the invention searches the transmission angle information according to the incident angle of the rf input signal to quickly obtain the transmission angle information corresponding to the rf input signal, and controls the antenna array to transmit the rf output signal in the opposite direction of the incident direction of the rf input signal, so that the direction of the communication device sending the rf input signal can be obtained without waiting for the stage of processing the baseband signal, and the connection between the antenna signal transmission device and the communication device sending the rf input signal can be quickly completed.

In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.

[ description of the drawings ]

Fig. 1 is a schematic diagram of an antenna signal transmission apparatus according to an embodiment of the invention.

Fig. 2 is a schematic diagram of a phase detection unit according to an embodiment of the invention.

Fig. 3 is a schematic diagram of a phase adjustment unit according to an embodiment of the invention.

Fig. 4 is a flowchart illustrating an antenna signal transmission method according to an embodiment of the invention.

[ detailed description ] embodiments

Fig. 1 is a schematic diagram of an antenna signal transmission apparatus according to an embodiment of the present invention, and fig. 1 is referred to. The antenna signal transmission apparatus 100 includes a plurality of antennas a1 to A8, a signal transmission control module 102, a power divider D1, and a signal source SC 1. The antennas a 1-A8 form an antenna array for receiving rf signals (e.g., the antennas a 1-A8 in fig. 1 can receive rf input signals S1-S8 respectively and transmit them to corresponding switching units). When the antennas a 1-A8 receive the rf input signals, respectively, the signal transmission control module 102 may search the transmission angle information corresponding to the incident angle of the rf input signal, and control the antenna array to transmit the rf output signal in the opposite direction of the incident direction of the rf input signal according to the transmission angle information (e.g., the antennas a 1-A8 in fig. 1 may transmit the rf output signal in the opposite direction of the incident direction of the corresponding rf input signals S1-S8, respectively). Therefore, by searching the transmission angle information, the direction of the communication device for transmitting the radio frequency input signal can be found out in a short time, and the radio frequency output signal is transmitted.

In detail, the signal transmission control module 102 of the embodiment of FIG. 1 may include switching units SW 1-SW 8, phase detecting units 104-1-104-4, an adding unit 106, and a plurality of phase adjusting units 108-1-108-8. The switching units SW1 and SW8 are respectively coupled to the corresponding antennas a1 to a8 and the phase adjusting units 108-1 to 108-8, wherein the switching units SW1 and SW2 are further coupled to the phase detecting unit 104-1, the switching units SW3 and SW4 are further coupled to the phase detecting unit 104-2, the switching units SW5 and SW6 are further coupled to the phase detecting unit 104-3, and the switching units SW7 and SW8 are further coupled to the phase detecting unit 104-4. The phase detecting units 104-1 to 104-4 are further coupled to an adding unit 106, respectively, and the adding unit 106 is further coupled to phase adjusting units 108-1 to 108-8. In addition, the power divider D1 is coupled to the phase adjusting units 108-1 to 108-8 and the signal source SC 1.

The phase detection units 104-1 to 104-4 can respectively receive the radio frequency input signals from the two antennas corresponding thereto, and respectively generate a plurality of phase data according to the radio frequency input signals. For example, the phase detecting unit 104-1 may receive the rf input signals S1 and S2 from the antennas a1 and a2 through the switching units SW1 and SW2, respectively, and generate phase data according to the rf input signals S1 and S2, and the rest of the phase detecting units 104-2 to 104-4 are similar, and thus are not described herein again.

Fig. 2 is a schematic diagram of a phase detection unit according to an embodiment of the invention, please refer to fig. 2. In detail, the phase detection units 104-1 to 104-4 can be implemented, for example, in the manner of the embodiment shown in fig. 2. The phase detection unit may include a demultiplexer 202, 90-

degree demultiplexers

204, 206 and 208, and a processing circuit 210, wherein the demultiplexer 202 is coupled to the 90-degree demultiplexer 204 and the 90-degree demultiplexer 208, the 90-degree demultiplexer 206 is coupled to the 90-degree demultiplexer 204 and the 90-degree demultiplexer 208, the processing circuit 210 is coupled to the 90-degree demultiplexer 204 and the 90-degree demultiplexer 208, and the processing circuit 206 may be implemented by a microcontroller, for example, but not limited thereto.

Assume that the phase detecting unit of the present embodiment is the phase detecting unit 104-1, and the corresponding antennas are antenna a1 and antenna a 2. The demultiplexer 202 receives the rf input signal S1 corresponding to the antenna a1, and outputs the rf input signal S1 to the 90-degree demultiplexer 204 and the 90-degree demultiplexer 208, respectively. In addition, the 90-degree splitter 206 is used to receive the rf input signal S2, and the output signals of the through ports of the 90-

degree splitters

204, 206, and 208 have a phase difference of 90 degrees from the output signal of the coupled port. The processing circuit 210 generates a real signal SI1, an imaginary signal SQ1, and a plurality of signals SZ1 and SZ2 according to the output signals of the 90-degree combiner 204 and the 90-degree combiner 208, and the phase data (i.e., SI1, SQ1, SZ1, and SZ2) represent the phase difference between the rf input signal S1 and the rf input signal S2. Further, the rf input signal S1 and the rf input signal S2 are represented by real values a1 and a2, respectively, such that the real signal SI1 is (a1-a2), the imaginary signal SQ1 is (-j) (a1+ a2), the plurality of signals SZ1 is (a1-jA2), and the plurality of signals SZ2 is (-j) (a1+ jA 2). By analogy, the other phase detecting units 104-2 to 104-4 can also obtain phase data according to the two corresponding antennas, which is not described herein again.

The adding unit 106 is capable of adding the phase data corresponding to each of the phase detecting units 104-1 to 104-4, i.e., adding the real signal SI1 corresponding to each of the phase detecting units 104-1 to 104-4, adding the imaginary signal SQ1 corresponding to each of the phase detecting units 104-1 to 104-4, adding the signals SZ1 corresponding to each of the phase detecting units 104-1 to 104-4, and adding the signals SZ2 corresponding to each of the phase detecting units 104-1 to 104-4 to generate the incident angle information (including the added real signal SI1T, imaginary signal SQ1T, signals SZ1T, and signals SZ 2T). In this embodiment, since the phase difference between the two antennas corresponding to each phase detecting unit is the same, the phase data corresponding to each phase detecting unit 104-1 to 104-4 are added to improve the sensitivity of phase detection.

The power divider D1 divides an input signal from the signal source SC1 to generate a plurality of power signals SP 1-SP 8, and transmits the power signals SP 1-SP 8 to the phase adjusting units 108-1-108-8, respectively, and the phase adjusting units 108-1-108-8 generate the feeding signals SF 1-SF 8 according to the received power signals, respectively. The phase adjusting units 108-1 to 108-8 can respectively receive the incident angle information from the adding unit 106, so as to find out the corresponding transmitting angle information according to the incident angle information, and respectively output the feeding signals SF1 to SF8 to excite the corresponding antennas a1 to a8 to generate radiation beams according to the transmitting angle information and the corresponding output signals SP1 to SP8, so that the antenna array transmits rf output signals. The transmission angle information includes phase difference information between the radiation beams generated by the antennas A1-A8, which is determined according to the phase difference between the RF input signals received by the antennas A1-A8. For example, assuming that the phase difference of the received rf input signal between the adjacent antennas is θ, the rf input signal received by the antenna A8 leads the phase of the rf input signal received by the antenna a1 by 7 θ, and the phase adjustment unit 108-8 excites the phase of the rf output signal transmitted by the antenna A8 according to the transmission angle information to lag behind the phase of the rf output signal transmitted by the antenna a1 by 7 θ, so that the antenna array transmits the rf output signal in the direction opposite to the incident direction of the rf input signal.

Further, the phase adjusting units 108-1 to 108-8 can be implemented in the same manner as the phase adjusting unit 108-1 shown in FIG. 3, but the other phase adjusting units 108-2 to 108-8 can be implemented in the same manner. The phase adjustment unit 108-1 includes a feed signal generation unit 302 and a look-up table unit 304, wherein the feed signal generation unit 302 is coupled to the look-up table unit 304. The look-up table unit 304 includes a look-up table, the look-up table unit 304 can receive the incident angle information (including the added real signal SI1T, imaginary signal SQ1T, signals SZ1T, and SZ2T) from the adding unit 106, and look up the incident angle from the look-up table according to the incident angle information of the rf input signal, and then obtain the transmitting angle information of the corresponding antenna, and the feeding signal generating unit 302 can convert the power signal SP1 into the feeding signal SF of the corresponding antenna according to the transmitting angle information provided by the look-up table unit 304.

In detail, the feed signal generating unit 302 may include a 90-degree splitter 306, an adjustable gain amplifier 308, an adjustable gain amplifier 310, a 180-degree splitter 312, a 180-degree splitter 314, a switching unit 316, a switching unit 318, a synthesizing unit 320, and an adjustable gain amplifier 322. The adjustable gain amplifier 308 is coupled to the 90-degree splitters 306, the 180-degree splitters 312 and the lookup table unit 304, the adjustable gain amplifier 310 is coupled to the 90-degree splitters 306, the 180-degree splitters 314 and the lookup table unit 304, the switching unit 316 is coupled to the 180-degree splitters 312, the combining unit 320 and the lookup table unit 304, and the switching unit 318 is coupled to the 180-degree splitters 314, the combining unit 320 and the lookup table unit 304. The adjustable gain amplifier 322 is coupled to the synthesis unit 320 and the look-up table unit 304. (the coupling relationship between the adjustable gain amplifier 322 and the look-up table unit 304 is not shown)

The 90-degree combiner 306 receives the power signal SP1 and generates a real signal SI2 and an imaginary signal SQ2 accordingly. The

adjustable gain amplifiers

308 and 310 are controlled by the lookup table unit 304 to gain amplify the real signal SI1 and the imaginary signal SQ2, respectively, so as to generate the real amplified signal SI3 and the imaginary amplified signal SQ3, respectively. The 180-degree splitter 312 generates a real signal SI3 and a real signal SI3 according to the real amplified signal SI3, wherein the real signal SI3 is 180 degrees out of phase with the real signal SI 3. Similarly, the 180-degree splitter 314 generates an imaginary signal SQ3 and an imaginary signal-SQ 3 according to the imaginary amplified signal SQ3, wherein the imaginary signal SQ3 is 180 degrees out of phase with the imaginary signal-SQ 3. The switching unit 316 is controlled by the look-up table unit 304 to switch and output the real part signal SI3 or the real part signal-SI 3, and the switching unit 318 is controlled by the look-up table unit 304 to switch and output the imaginary part signal SQ3 or the imaginary part signal-SQ 3. The synthesizing unit 320 synthesizes the output signals of the switching unit 316 and the switching unit 318 to generate a synthesized signal SO. The synthesized signal SO may be used to excite the corresponding antenna to generate a radiation beam, SO that the antenna emits the rf output signal in the direction opposite to the incident direction of the received rf input signal, but the rf output signal excited by the synthesized signal SO may have too small amplitude, i.e., insufficient energy. In this case, the adjustable gain amplifier 322 controlled by the look-up table unit 322 may be utilized to amplify the synthesized signal SO to generate the feeding signal SF to the corresponding switching unit, and the rf output signal with sufficient energy is excited by the feeding signal SF.

The look-up table unit 304 may be implemented by a memory, for example, and further, the look-up table unit 304 may output the bit control signal to the adjustable gain amplifier 308, the adjustable gain amplifier 310, the switching unit 316, the switching unit 318 and the adjustable gain amplifier 322 according to the incident angle information (which includes the added real signal SI1T, imaginary signal SQ1T, signals SZ1T and signals SZ2T, in this embodiment, the incident angle information may be a 32-bit signal, for example). For example, in the present embodiment, the lookup table unit 304 may output 8-bit control signals SB1, SB2, SB3 to the

adjustable gain amplifiers

308, 310 and 322 to control the amplification factors of the

adjustable gain amplifiers

308, 310 and 322, and output 1-bit control signals SB4 and SB5 to the

switching unit

316 and 318 to control the switching states of the

switching unit

316 and 318. Wherein the bit data included in each bit control signal is determined according to the incident angle information.

In addition, the switching state of each switching unit is controlled by the corresponding phase detection unit, and each phase detection unit controls the switching state of the switching unit corresponding to each phase detection unit according to the signal receiving and transmitting state of the corresponding antenna. For example, in the embodiment of FIG. 1, the switching states of the switching unit SW1 and the switching unit SW2 are controlled by the phase detecting unit 104-1. After the phase detecting unit 104-1 outputs the phase data to the adding unit 106, the states of the switching unit SW1 and the switching unit SW2 are switched, that is, the state of the switching unit SW1 originally connecting the antenna a1 with the phase detecting unit 104-1 is switched to the state of connecting the antenna a1 with the phase adjusting unit 108-1, so that the antenna a1 transmits the rf input signal S1 through the switching unit SW1, and then receives the feed-in signal SF1 through the switching unit SW 1. After a predetermined time elapses after the phase detection unit 104-1 outputs the phase data to the adding unit 106, the state of the unit SW1 is switched again, so that the antenna a1 is connected to the corresponding phase detection unit 104-1. Similarly, the switching unit SW2 is similar to the switching unit SW1, and will not be described herein. In addition, the phase detecting units 104-1 to 104-4 and the corresponding switching units operate in a similar manner, and are not described herein again.

In addition, although the above embodiments have been described with the embodiments of the antenna array having 8 antennas a1 to A8, the number of antennas is not limited in practical applications, and in other embodiments, the number of antennas and the corresponding switching units, phase detecting units and phase adjusting units can be designed and adjusted according to practical applications.

Fig. 4 is a flowchart illustrating an antenna signal transmission method according to an embodiment of the invention, please refer to fig. 4. As can be seen from the above embodiments, the antenna signal transmission method of the antenna signal transmission apparatus may include the following steps. First, an rf input signal is received through an antenna array formed by a plurality of antennas (step S402). Then, the transmission angle information is searched for according to the incident angle of the rf input signal (step S404), that is, the transmission angle information of each antenna corresponding to the incident angle is searched for from the lookup table unit corresponding to each antenna corresponding to the incident angle of the rf input signal, where the transmission angle information includes phase difference information between the radiation beams generated by the antennas, and the phase difference information is determined according to the phase difference between the rf input signals received by the antennas. And finally, controlling the antenna array to transmit the radio frequency output signal in the incident direction of the radio frequency input signal corresponding to the transmission angle information (step S406), and further, converting the power signal into the feed-in signal corresponding to each antenna according to the transmission angle information, and then outputting the feed-in signal to the corresponding antenna respectively to excite the antenna to generate the radiation beam, so that the antenna array transmits the radio frequency output signal.

In summary, the embodiments of the present invention search the transmission angle information according to the incident angle of the rf input signal to quickly obtain the transmission angle information corresponding to the rf input signal, and accordingly control the antenna array to transmit the rf output signal according to the incident direction of the rf input signal.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. An antenna signal transmission apparatus, comprising:

a plurality of antennas forming an antenna array for receiving a radio frequency input signal; and

a signal transmission control module, which searches a transmission angle information corresponding to the incident angle of the rf input signal and controls the antenna array to transmit an rf output signal corresponding to the opposite direction of the incident direction of the rf input signal according to the transmission angle information, wherein the signal transmission control module comprises:

the phase adjusting units respectively comprise a lookup table unit, and the lookup table units search the transmitting angle information of each antenna corresponding to the incident angle according to the incident angle of the radio frequency input signal, so that the phase adjusting units respectively output feed-in signals according to the transmitting angle information to excite the antennas to generate radiation beams, and the antenna array transmits the radio frequency output signal; and

a feed-in signal generating unit, coupled to the corresponding look-up table unit, for converting a power signal into a feed-in signal of the antenna corresponding to the power signal according to the transmission angle information provided by the look-up table unit, wherein the feed-in signal generating unit includes:

a 90-degree combiner for generating a first real part signal and a first imaginary part signal according to a power signal;

a first adjustable gain amplifier coupled to the 90-degree multiplexer and the look-up table unit, and controlled by the look-up table unit to gain-amplify the first real signal to generate a real amplified signal;

a second adjustable gain amplifier coupled to the 90-degree combiner and the lookup table unit, and controlled by the lookup table unit to gain-amplify the first imaginary part signal to generate an imaginary part amplified signal;

a first 180-degree combiner coupled to the first adjustable gain amplifier for generating a second real signal and a third real signal according to the real amplified signal, wherein the phase difference between the second real signal and the third real signal is 180 degrees;

a second 180 degree combiner, coupled to the second adjustable gain amplifier, for generating a second imaginary signal and a third imaginary signal according to the imaginary amplified signal, wherein the phase difference between the second imaginary signal and the third imaginary signal is 180 degrees;

a first switching unit, coupled to the first 180-degree multiplexer and the look-up table unit, controlled by the look-up table unit to switch and output the second real signal or the third real signal;

a second switching unit, coupled to the second 180-degree splitter and the lookup table unit, controlled by the lookup table unit to switch and output the second imaginary signal or the third imaginary signal;

a synthesis unit, coupled to the first switching unit and the second switching unit, for synthesizing the output signals of the first switching unit and the second switching unit to generate a synthesized signal;

a third adjustable gain amplifier coupled to the combining unit and the look-up table unit, controlled by the look-up table unit to amplify the combined signal to generate a feed-in signal for exciting each antenna to generate a radiation beam.

2. The antenna signal transmission device according to claim 1, wherein the transmission angle information includes phase difference information between the radiation beams generated by the antennas, the phase difference information being determined based on the phase difference between the radio frequency input signals received by the antennas.

3. The antenna signal transmission apparatus of claim 1, wherein the signal transmission control module further comprises:

a plurality of switching units respectively coupled to the corresponding antennas and the phase adjusting units;

the phase detection units are respectively coupled with the two corresponding switching units and the two corresponding antennas, control the switching states of the switching units according to the signal receiving and transmitting states of the antennas and generate a plurality of phase data according to the radio frequency input signals received by the antennas; and

and the addition unit is coupled with the phase detection units and the lookup table units and is used for adding the phase data to generate incident angle information to the lookup table units so that the lookup table units provide the transmitting angle information according to the incident angle information.

4. The antenna signal transmission device according to claim 3, wherein the phase detecting units switch the states of the corresponding switching units after outputting the phase data, so that each antenna is connected to the corresponding phase adjusting unit, and switch the states of the switching units again after a predetermined time period elapses, so that each antenna is connected to the corresponding phase detecting unit.

5. An antenna signal transmission method, comprising:

receiving a radio frequency input signal by an antenna array formed by a plurality of antennas;

searching the transmission angle information of each antenna corresponding to the incidence angle from a lookup table corresponding to each antenna corresponding to the incidence angle of the radio frequency input signal; and

controlling the antenna array to transmit a radio frequency output signal in the opposite direction of the incident direction of the radio frequency input signal according to the transmission angle information; converting a power signal into a feed-in signal corresponding to each antenna according to the transmitting angle information, wherein the feed-in signal generating method comprises the following steps:

the 90-degree combiner generates a first real part signal and a first imaginary part signal according to the power signal;

the first adjustable gain amplifier performs gain amplification on the first real part signal to generate a real part amplified signal;

the second adjustable gain amplifier performs gain amplification on the first imaginary part signal to generate an imaginary part amplified signal;

the first 180-degree multiplexer generates a second real part signal and a third real part signal according to the real part amplified signal, wherein the phase difference between the second real part signal and the third real part signal is 180 degrees;

the second 180-degree combiner generates a second imaginary signal and a third imaginary signal according to the imaginary part amplified signal, wherein the phase difference between the second imaginary signal and the third imaginary signal is 180 degrees;

the first switching unit switches and outputs the second real part signal or the third real part signal;

the second switching unit switches and outputs the second imaginary part signal or the third imaginary part signal;

the synthesis unit synthesizes output signals of the first switching unit and the second switching unit to generate a synthesized signal;

a third adjustable gain amplifier amplifies the synthesized signal to generate a feed-in signal for exciting each antenna to generate a radiation beam; and

the feed-in signals are respectively output to the corresponding antennas so as to excite the antennas to generate radiation beams, and the antenna array emits the radio frequency output signals.

6. The antenna signal transmission method according to claim 5, wherein the transmission angle information includes phase difference information between the radiation beams generated by the antennas, the phase difference information being determined according to the phase difference between the RF input signals received by the antennas.