JPH06252628A - Transmitter-receiver for mobile body - Google Patents

Abstract

PURPOSE:To send a video image and an audio signal to a broadcast station in the center of a city or the like and to receive a contact signal being an audio signal from the broadcast station via a radio wave relay station by sending a radio wave from a mobile body to the radio wave relay station installed on an artificial satellite or the like. CONSTITUTION:A reception signal obtained by a transmission/reception common planar antenna 5 is demodulated to reproduce a contact use audio signal from a relay station side and a direction of the relay station is discriminated based on the reception signal. Based on the result of discrimination, a video audio transmitter 3 is activated and a television video signal or the like inputted to an input terminal 7 is received while operating a video audio transmitter 3 to control its radio wave emission direction and the video signal is modulated digitally and a transmission signal is generated through up-convert, power amplification and phase control. The transmission signal is emitted from a transmission planar antenna 6 being a peripheral part of the transmission/reception common planar antenna 5 and sent to the relay station.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmitting / receiving device for a mobile body, a transmitting / receiving antenna for a mobile body, which transmits a relay image or sound for a television program from a mobile body to a broadcasting station via an intermediary point such as a communication satellite. The present invention also relates to a tracking controller, and more particularly to a transmitting / receiving device for a mobile body, a transmitting / receiving antenna for a mobile body, and a tracking controller for dramatically improving the outdoor relay function of a television.

SUMMARY OF THE INVENTION The present invention has a simple structure and is moving or stationary from a moving object such as a relay vehicle, an aircraft, or a ship to a radio relay station installed on an artificial satellite, a helicopter, or a mountain peak. In the state of
A device that enables transmission of video and audio to a broadcasting station in the center of the city through an artificial satellite, a helicopter, or a radio relay station on the mountaintop, and reception of a contact signal such as an audio signal from the broadcasting station. Is.

[0003]

2. Description of the Related Art At present, a transmitting / receiving device for a mobile body has already been developed under the name of a satcom device or an omni-track device when transmitting / receiving a data signal having a small signal bandwidth. In addition, the telephone has been put into practical use in the form of a car telephone or a mobile telephone. However, a device capable of automatically tracking and transmitting a large amount of information such as a television signal has not been realized yet.

[0004]

That is, when a radio wave modulated by a video signal is transmitted to a relay station such as a communication satellite, since the band of the transmission radio wave is wide, a high power radio wave is transmitted unlike the case of data transmission. Need to send.

Therefore, in order to prevent interference with other communications, the radiation directivity characteristic of the transmitting antenna must be set to a low side lobe. In this case, a parabolic antenna can be used to obtain low sidelobe characteristics, but on the other hand, when transmitting radio waves from a moving body to a distant repeater, the tracking mechanism becomes extremely large. .

In view of the above-mentioned circumstances, the present invention is a planar antenna capable of spatially synthesizing many low-power transmission elements, in which radiating elements for transmission and reception are formed on the same substrate surface, and Taking advantage of the large difference in the number of elements required for transmission and the number of elements required for reception of radio waves, the radiating element for reception is placed only in the central part of the planar antenna to transmit and receive waves. At the same time as reducing the wave interference, it is possible to reduce the deterioration of the transmission pattern caused by the receiving power supply line when the receiving element is used as a transmission / reception shared element that is also used for transmission, and move the receiving element by the spread spectrum method. It is possible to reduce the deterioration of the tracking carrier reproduction characteristic that is caused by the deterioration of the reception level caused by arranging only in the center of the body transmitting / receiving antenna, to the extent that it does not affect the video signal. It can, thereby moving body receiving apparatus capable of receiving strong enough necessary for the operation of the tracking device, and its object is to provide a moving object receiving antenna and tracking controller.

[0007]

In order to achieve the above-mentioned object, a transmitting / receiving apparatus for a mobile body according to the present invention divides a central portion of a planar antenna formed on the same plane into four parts, and that portion is used as a transmitting / receiving common plane. A transmission / reception antenna for a mobile body which uses an antenna and a peripheral portion thereof as a transmission plane antenna, and a phase control signal which indicates the direction of a reception radio wave based on a plurality of signals received by the transmission / reception common plane antenna of the transmission / reception antenna for the mobile body. A tracking controller that generates a signal, a contact signal receiver that reproduces a contact signal by demodulating a signal received by the transmitting / receiving shared planar antenna of the mobile transmitting / receiving antenna, and a video signal or audio signal to be transmitted. While generating at least one of the plurality of transmission signals, and based on the phase control signal output from the tracking controller It is characterized in that a video and audio transmitter to adjust the phase of the signal the signal is emitted from at least the transmitting planar antenna elements of the mobile body receiving antenna.

[0008]

In the above structure, the central portion of the planar antenna formed on the same plane is divided into four, the portion is made into the transmitting / receiving shared planar antenna, and the peripheral portion thereof is made into the transmitting planar antenna. A plurality of signals are generated by the receiving operation of the transmission / reception shared planar antenna, the communication signal is demodulated by the communication signal receiver to reproduce a communication signal, and the direction of the received radio wave from the signal is further acquired by the tracking controller. Is generated, and at least one of a video signal and an audio signal to be transmitted is captured by the video and audio transmitter to generate a plurality of transmission signals, which are then output from the tracking controller. The phase of each of the transmission signals is adjusted based on a phase control signal for transmission of at least the transmission / reception antenna for the mobile object. Emitted from the surface antenna.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an embodiment of a transmitting / receiving apparatus for a mobile object according to the present invention.

The mobile transmitting / receiving apparatus shown in this figure comprises a mobile transmitting / receiving antenna 1, a tracking controller 2, a video / audio transmitter 3 and a contact signal receiver 4, and the mobile transmitting / receiving device is provided. The reception signal obtained by the transmission / reception plane antenna 5 forming the central portion of the antenna 1 is demodulated to reproduce the communication voice signal from the relay station (not shown) side, and relayed based on the reception signal. The direction of the station is determined, and the video / audio transmitter 3 is operated based on the result of the determination to control the radio wave emission direction thereof, and the television video signal input to the input terminal 7 and the television audio signal, The communication voice signal is taken in, and after this is digitally modulated, up-conversion, power amplification, and phase control are performed to generate a transmission signal, which is generated in the peripheral portion of the mobile transmission / reception antenna 1. Is emitted from the transmitting planar antenna elements 6 constituting the by transmitting to the relay station.

The mobile transmitting / receiving antenna 1 is composed of four transmitting / receiving subarrays 8 and is composed of a transmitting / receiving planar antenna 5 arranged in the central portion of the mobile transmitting / receiving antenna 1 and twelve transmitting subarrays 9. The transmission / reception flat antenna 6 arranged around the transmission / reception shared flat antenna 5 is provided, and the reception signal obtained by the reception operation by receiving the radio wave from the relay station by each transmission / reception shared sub-array 8 Is output from the reception terminal 10 provided on the back surface of each transmission / reception subarray 8 and supplied to the tracking controller 2 and the communication signal receiver 4. Also,
Each transmission sub array 9 and each transmission / reception shared sub array 8
Each transmission signal output from the video / audio transmitter 3 is taken in by a transmission terminal 11 provided on the back surface of the device, emitted from the transmission / reception common plane antenna 5 and the transmission plane antenna 6, and transmitted to the relay station.

The detailed structure of the mobile unit transmitting / receiving antenna 1 will be described after the description of the whole mobile unit transmitting / receiving apparatus.

Further, the contact signal receiver 4 includes four transmission / reception sub-arrays 8 constituting the mobile transmission / reception antenna 1.
An in-phase synthesizing circuit 15 for synthesizing received signals output from the same in-phase to generate one received signal;
And a digital receiver 16 for reproducing the communication voice signal from the relay station by digitally demodulating the received signal output from the digital signal No. 5 by a preset digital demodulation system, for example, a QPSK demodulation system. The reception signals output from the transmission / reception shared sub-arrays 8 that compose the transmission / reception shared planar antenna 5 are taken in and combined in phase, and the received signals obtained by this combining operation are converted by a preset digital demodulation method. Digitally demodulate and reproduce the contact voice signal from the relay station.

The tracking controller 2 also includes four transmission / reception shared sub-arrays 8 constituting the transmission / reception shared planar antenna 5.
A carrier wave regenerator 17, which takes in each received signal output from the device, multiplies each received signal by a pre-specified pseudo-random noise code to reproduce a plurality of tracking carrier signals, and a microwave IC balance. A phase detector 18 that has a modulator or the like and detects a relative phase difference between the tracking carrier signals output from the carrier regenerator 17 to generate phase difference information, and an output from the phase detector 18. The direction of the incident radio wave is calculated on the basis of the phase difference information, and the transmission / reception common plane antenna 5 and the transmission plane antenna 6 emit based on the calculation result and the characteristic information of the video / audio transmitter 3. A phase controller 19 for generating a plurality of phase control signals necessary to match the emission direction of the radio wave with the direction of the incident radio wave.

The tracking controller 2 takes in each reception signal output from the four transmission / reception shared sub-arrays 8 and despreads each spectrum by a prespecified pseudo random noise signal to obtain four reception signals. The tracking carrier signal is reproduced, and the phase relationship of each of these tracking carrier signals is detected to generate phase difference information. Based on this phase difference information and the characteristic information of the video / audio transmitter 3, the A plurality of phase control signals necessary to make the emission directions of the radio waves emitted from the transmission / reception common plane antenna 5 and the transmission plane antenna 6 coincide with the directions of the incident radio waves are generated, and the phase control signals are transmitted to the video / audio transmitter 3. Supply.

In this case, in the relay station, the spectrum of the carrier required for tracking control is widened and the level of the line spectrum of the carrier is increased by spreading the spectrum 10 to 100 times with a pseudo random noise signal designated in advance. The radio wave is lowered to emit radio waves, which are received by each of the transmission / reception shared sub-arrays 8, and the reception signal obtained by this reception operation is spectrum-despread and tracked by the carrier regenerator 17 with the same pseudo random noise as the pseudo random noise signal. Since the carrier signal for use is reproduced, even when each sub-array 8 for both transmission and reception is small, it is possible to obtain a sufficient carrier level, and even when a large level carrier is transmitted from the relay station, this is used for both transmission and reception. The transmission radio waves emitted from the plane antenna 5 and the transmission plane antenna 6 are projected. It can be prevented from interfering with the signal.

Further, the video / audio transmitter 3 takes in the television video signal and the television audio signal inputted to the input terminal 7, and the audio signal for the communication line (communication audio signal) and is preset. A digital modulator 20 for converting into a digital modulation wave by a digital modulation system, for example, a QPSK modulation system, and a transmission signal in a transmission band preset by taking in a digital modulation signal output from the digital modulator 20, for example, a 14 GHz band Up-converter 2 which converts to the transmission signal of
1 and a transmission signal output from the up-converter 21 having a FET amplifier and the like, respectively, and power-amplified into a transmission signal of the same level set in advance 1
The phase of each transmission signal is adjusted based on each phase control signal output from the phase controller 19 of the tracking controller 2 while taking in the transmission signals output from the six power amplifiers 22 and each power amplifier 22. 16 phase shifters 23 are provided.

The video / audio transmitter 3 takes in the television video signal, the television audio signal, and the contact audio signal input to the input terminal 7, and uses these signals in a preset digital modulation system. After being digitally modulated into a digitally modulated signal, up-conversion processing and power amplification processing are performed to obtain a transmission signal having a preset transmission band and a preset same level, and the phase control of the tracking controller 2 is performed. The phase of each transmission signal is adjusted based on each phase control signal output from the device 19, and is supplied to each transmission terminal 11 of the transmission / reception common plane antenna 5 and the transmission plane antenna 6.

In this case, even if there is a level difference in the power amplification factor of each power amplifier 23, the information indicating the level difference is input to the phase controller 19 of the tracking controller 2 as the characteristic information of the video / audio transmitter 3. Therefore, the radio waves emitted from the transmission / reception planar antenna 5 and the transmission planar antenna 6 can be always matched with the direction of the incident radio wave.

As described above, in this embodiment, the reception signal obtained by the transmission / reception common plane antenna 5 forming the central portion of the mobile transmission / reception antenna 1 is demodulated to reproduce the communication voice signal from the relay station side. At the same time, the direction of the relay station is determined based on the received signal, and the video / audio transmitter 3 is operated based on the determination result to control the radio wave emission direction thereof, and the television input to the input terminal 7 is controlled. A video signal, a television audio signal, and a communication audio signal are taken in, and after digitally modulating this, a transmission signal is generated by up-conversion, power amplification, and phase control, and the transmission / reception antenna for the mobile body is generated. A transmitting / receiving planar antenna 5 forming a central portion of the mobile terminal 1 and a transmitting planar antenna 6 forming a peripheral portion of the mobile transmitting / receiving antenna 1. Since then emitted so that to transmit to the relay station, it is possible to obtain the described below effect.

First, in a planar antenna capable of spatially synthesizing many low power transmitting elements, there is a large difference between the number of elements required for transmitting radio waves and the number of elements required for receiving radio waves. In addition to utilizing this, the radiation element for reception is arranged only in the central portion of the planar antenna, so that the interference between the transmitted wave and the received wave is reduced and at the same time,
When the reception element is a transmission / reception shared element that is also used for transmission, the deterioration of the transmission pattern caused by the reception power supply line can be reduced.

Further, since the radio wave transmitted from the relay station is spread spectrum by the spread spectrum method, the tracking caused by the deterioration of the reception level caused by disposing the receiving element only in the central portion of the mobile transmitting / receiving antenna 1 The deterioration of the carrier reproduction characteristic can be reduced to the extent that it does not affect the video signal, and thus a sufficient signal level necessary for the operation of the tracking controller 2 can be secured.

In the above-mentioned embodiments, the explanation has been made on the premise that the modulation signal is a digital signal. However, even in the case of an analog signal such as an FM signal or an AM signal, the transmitting / receiving device for a mobile object according to the present invention The transmitting / receiving method according to the present invention can be applied as long as the distance between the mobile transmitting / receiving device and the repeater of the communication partner is within a preset range. In this case, carrier regenerator 1
Of course, it suffices to replace 7 with the digital receiver 16 and the digital modulator 20 with equipment that can handle analog signals.

Further, in the above-mentioned embodiment, the mobile transmitting / receiving antenna 1 is composed of 16 sub-arrays, of which the outer 12 are the transmission-only sub-arrays 9 and the central 4 are transmitting / receiving. Although the present invention has been described by taking the case where the shared sub-array 8 is used as an example, the number of the transmitting sub-arrays 9 can be arbitrarily selected according to the request of the pattern of the transmission radio wave, and the reception signal can be received. Transmit / receive sub-array 8 depending on level strength requirements
Can be arbitrarily selected.

However, the number of received signals input to the tracking controller 2 is always four, and the number of received signals input to the contact signal receiver 4 is made equal to the number of transmission / reception shared sub-arrays, and the audio / video is transmitted. It is necessary to make the number of transmission signals output from the transmitter 3 the sum of the number of transmission sub-arrays 9 and the number of transmission / reception shared sub-arrays 8.

Further, in the above-described embodiment, each phase shifter 23 is arranged on the output side of each power amplifier 22, but each phase shifter 23 is arranged on the input side of each power amplifier 22. Alternatively, the output of the up-converter 21 may be collectively power-amplified by one power amplifier and then distributed to the respective phase shifters 23, or the output of the up-converter 21 may be appropriately adjusted. It is also possible to divide each of the electric powers into a plurality of electric powers, amplify the electric powers of the respective electric powers, and further distribute the electric powers of the electric powers to input them to the phase shifters 23.

Next, the transmitting / receiving antenna 1 for a mobile body according to the present invention will be described in detail with reference to the front view of FIG. 2 to the front view of FIG.

As shown in FIG. 2, the mobile transmitting / receiving antenna 1 is composed of four transmitting / receiving subarrays 8,
The transmission / reception shared sub-arrays 8 are placed in close contact with each other, and the transmission / reception shared planar antennas 5 arranged in the central portion of the mobile transmission / reception antenna 1 are arranged so that their surfaces are flush with each other, and twelve transmission antennas. And a transmission flat antenna 6 arranged in the peripheral portion of the transmission / reception shared flat antenna 5 such that the transmission sub arrays 9 are arranged in close contact with each other and are arranged so that their surfaces are flush with each other. Consists of
The outer dimensions L, M, the number of transmission / reception patches 25 forming each transmission / reception shared sub-array 8, and the number of transmission patches 26 forming each transmission sub-array 9 are determined by the gain required for the antenna.

As shown in FIG. 3, each of the transmission / reception shared sub-arrays 8 has an antenna substrate 2 formed of a dielectric substrate having external dimensions of L / 4 and M / 4.
7, a ground plane 28 composed of a metal foil provided on the back surface of the antenna substrate 27 as shown in FIGS. 4A and 4B, and formed on the front surface of the antenna substrate 27 by etching or the like. Formed on the surface of the antenna substrate 27 so as to connect a plurality of transmitting / receiving patches (antenna elements for transmitting / receiving) 25 and a feeding point 29 for extracting a received signal of each transmitting / receiving patch 25 by etching or the like. And a power supply line 30 for reception configured by a microstrip line.

Further, each of the transmission / reception shared sub-arrays 8 penetrates the front surface and the back surface of the antenna substrate 27 at the synthesis point of the reception signal output from each transmission / reception patch 25 on the reception power supply line 30. And a plurality of metal pins 31 provided so as to penetrate the front surface and the back surface of the antenna substrate 27 at the power feeding point for transmission of each of the transmission / reception patches 25. A plurality of feed line substrates 32 formed of a plurality of dielectric substrates vertically provided on the back surface of the antenna substrate 27 so as to come into contact with the respective sets of the metal pins 31, and as shown in FIG. The power feeding lines 33 for transmission formed on the power feeding line substrate 32 so as to connect the metal pins 31 and the power feeding lines 33 for connecting to the distribution points of the power feeding lines 33 for transmission. And a transmission terminal 11 provided on the use substrate 32.

When the transmission / reception patch 25 formed on the transmission / reception shared sub-array 8 receives the radio wave from the relay station, the reception signal obtained by this reception operation is combined by the reception power supply line 30. The signal is output from the reception terminal 10 provided on the back surface of each transmission / reception subarray 8. When a transmission signal is input from the outside, the transmission signal is taken in by each transmission terminal 11 provided on the back side of each transmission / reception shared sub-array 8 and formed on the transmission / reception shared sub-array 8 by the transmission power supply line 33. Power is sent to each of the transmitting / receiving patches 25 to emit a radio wave.

In this case, in satellite communication, at different frequencies,
In addition, since transmission and reception communication is often performed with linearly polarized waves that are orthogonal to each other, a rectangular patch antenna or the like can be used as the transmission / reception patch 25, and the polarization directions of the two are orthogonal to each other. Therefore, it is possible to perform transmission and reception with one transmitting / receiving patch 25 by using the vertical excitation and the lateral excitation of the rectangular element.

Therefore, in the transmission / reception shared sub-array 8, the transmission frequency f1 and the reception frequency f2 are f1> f2.
Then, as shown in FIG. 6, the position of the metal pin 31 serving as the feeding point of the transmission wave and the position of the feeding point 29 of the reception wave are set so that the sizes a and b of the transmission / reception patch 25 are a <b. ,
The sizes a and b of the transmission / reception patch 25 are determined.

Further, as shown in FIG. 2, each transmitting sub-array 9 has an antenna substrate 35 formed of a dielectric substrate having external dimensions of L / 4 and M / 4.
And the antenna substrate 3 as shown in FIGS.
5, a ground plane 36 made of metal foil or the like provided on the back side of the substrate 5, a plurality of transmitting patches (transmitting antenna elements) 26 formed on the surface of the antenna substrate 35 by etching or the like, and Patch 2 for each transmission
6, a plurality of metal pins 37 provided at the power feeding point for transmission 6 so as to penetrate the front surface and the back surface of the antenna substrate 35.
It has and.

Further, each of the transmitting sub-arrays 9 is composed of a plurality of dielectric substrates vertically provided on the back surface of the antenna substrate 35 so that one surface thereof contacts each set of the metal pins 37. Of the power supply line 38, a power supply line 39 for transmission formed on the power supply line substrate 38 so as to connect the metal pins 37 by etching as shown in FIG. 8, and the power supply line for transmission. The transmission terminals 11 are provided on the respective power supply line substrates 38 so as to be connected to the distribution points 39.

In this case, the transmitting patch 26 has a structure in which the feeding point 29 for extracting the received signal is removed from the transmitting / receiving patch 25.

When a transmission signal is input from the outside, the transmission signal is taken in by each transmission terminal 11 provided on the back side of each transmission sub-array 9, and the transmission sub-array 9 is transferred by the transmission power supply line 39. Electric power is emitted to each of the transmission patches 26 formed in the above by feeding power.

As described above, the transmitting / receiving antenna 1 for the mobile body
In the above, the transmission / reception patch 25 is arranged only in the central portion of the planar antenna by utilizing the fact that there is a large difference between the number of patches required to transmit radio waves and the number of patches required to receive radio waves. At the same time, since power is supplied to the transmission / reception patch 25 and the transmission patch 26 from the back surface of each antenna substrate 27, 35, interference between the transmission wave and the reception wave is reduced, and at the same time, the patch is also used for transmission. In this case, it is possible to reduce the deterioration of the transmission pattern caused by the reception power supply line 30 and the deterioration of the reception level.

Further, in the above-mentioned embodiment, although the transmitting / receiving patch 25 and the transmitting patch 26 have a rectangular shape, a circular patch may be used.

When the radio wave transmitted / received by the mobile transmitting / receiving antenna 1 is a circularly polarized wave, an arbitrary circularly polarized wave single-point feeding patch, for example, a dimension in which opposing corners are cut off by a dimension α as shown in FIG. A patch for transmission / reception in which a rectangular patch 40 of c is formed, one of the feeding points of this rectangular patch 40 is set as the feeding point 41 of the transmitted wave, and a position substantially symmetrical to the axis of symmetry 43 is set as the feeding point 42 of the received wave. 44 is used.

As the transmitting patch, the transmitting / receiving patch 44 from which the feeding point 42 of the received wave is removed is used.

In each of the above-described embodiments, the transmission / reception common plane antenna 5 is arranged in the central portion of the mobile transmission / reception antenna 1, and the transmission plane antenna 6 is arranged in the peripheral portion of the transmission / reception common plane antenna 5. However, a plurality of transmitting / receiving patches 25 may be arranged on the entire one surface of the antenna substrates 27, 35 constituting the transmitting / receiving antenna 1 for a mobile body, and the entire antenna surface may be a common antenna for transmitting / receiving.

Further, in each of the above-mentioned embodiments, a shield mechanism such as a metal plate is not provided on the surface of the mobile transmitting / receiving antenna 1, but the transmitting / receiving planar antenna 5 is provided on the surface side for transmitting / receiving. A metal plate with a radio wave window may be arranged only on the front surface of the patch 25, and this metal plate may cover the portion of the receiving power supply line 30 connected to the transmitting / receiving patch 25 to reduce unnecessary radiation. .

[0044]

As described above, according to the present invention, a marathon runner or a landscape can be photographed while moving like a TV broadcasting vehicle, and the image can be directly transmitted in real time to an artificial satellite or a helicopter by transmitting radio waves. Moreover, since the side lobe of the transmitting antenna can be made extremely low, it can greatly contribute to diversification of broadcast program production without interfering with other wireless lines, and it is possible to transmit radio waves from a moving object. Since the entire device is suitable for reduction in size and weight, it can also be used for a portable SNG.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a transmitting / receiving device for a mobile object according to the present invention.

FIG. 2 is a detailed front view of the mobile transmitting / receiving antenna shown in FIG.

FIG. 3 is a detailed front view of the transmitting / receiving planar antenna shown in FIG.

FIG. 4 is a partially enlarged view and one side view showing a detailed configuration example of the transmission / reception shared sub-array shown in FIG.

5 is another side view showing a detailed configuration example of the transmission / reception shared sub-array shown in FIG. 3. FIG.

6 is a front view showing a detailed configuration example of the transmission / reception patch shown in FIG.

7A and 7B are a partially enlarged view and one side view showing a detailed configuration example of the transmission sub-array shown in FIG.

FIG. 8 is another side view showing a detailed configuration example of the transmission sub-array shown in FIG.

FIG. 9 is a front view showing an example of another transmitting / receiving patch used in the moving body transmitting / receiving apparatus according to the present invention.

[Explanation of symbols]

 1 Mobile transmission / reception antenna 2 Tracking controller 3 Video / audio transmitter 4 Contact signal receiver 5 Transmission / reception shared planar antenna 6 Transmission / reception planar antenna 8 Transmission / reception shared subarray 9 Transmission subarray 10 Reception terminal 11 Transmission terminal 25 Transmission / reception patch 26 Reception Patch 27,35 Antenna board 30 Receiving power supply line

Claims (6)

[Claims] 1. A transmission / reception antenna for a mobile body, wherein a central portion of an antenna configured on the same plane is divided into four parts, and that portion is used as a transmission / reception planar antenna and a peripheral portion thereof is used as a transmission planar antenna. A tracking controller that generates a phase control signal indicating the direction of the received radio wave based on a plurality of signals received by the transmission / reception shared plane antenna of the transmission / reception antenna, and received by the transmission / reception shared plane antenna of the mobile transmission / reception antenna. A contact signal receiver that demodulates the signal and reproduces a contact signal, generates at least one of a video signal or an audio signal to be transmitted to generate a plurality of transmission signals, and outputs from the tracking controller. The phase of each transmission signal is adjusted based on the phase control signal to A transmitter / receiver device for a mobile body, comprising: a video / audio transmitter to be emitted from the antenna. 2. The transmission / reception antenna for a mobile body is provided with a power supply line for transmitting signals of a common transmit / receive antenna on the back surface of the antenna and a power supply line for receiving signals on the front surface of an antenna substrate. The mobile transmission / reception device described. 3. The transmission / reception antenna for a mobile body has a transmission / reception antenna element arranged on the entire one surface of an antenna substrate,
The transmitting / receiving device for a mobile body according to claim 1, wherein the entire antenna surface is a plane antenna for both transmission and reception. 4. The transmission / reception antenna for a mobile body has a transmission / reception shared antenna element arranged in the central portion of the antenna according to claim 1 or on the entire surface of an antenna substrate, and a radio wave window is opened only on the front surface of the transmission / reception shared antenna element. The transmitter / receiver device for a mobile body according to claim 1, wherein a portion of the feeder line for reception connected to the antenna element for shared transmitter / receiver is covered with a metal plate to reduce unnecessary radiation. 5. The transmission / reception antenna for a mobile body, wherein a single-point feed type circular polarization element is arranged on one surface of an antenna substrate, and the single-point feed type circular polarization element is used as a radiating element. 1. The transmitting / receiving device for a mobile body according to 1. 6. The spread spectrum signal in which the tracking controller widens the band of the carrier required for tracking control by spread spectrum and lowers the level of the line spectrum of the carrier to reduce cross modulation generated in the repeater. The mobile transmission / reception device according to claim 1, further comprising a carrier regenerator for demodulating the signal.