CN214675129U

CN214675129U - Miniaturized wireless communication equipment with dual-mode system capable of carrying out microwave scattering

Info

Publication number: CN214675129U
Application number: CN202023241142.7U
Authority: CN
Inventors: 高丽丽; 陈强辉; 王新龙; 全亮; 王全意; 李雪姣; 刘娇; 赵强
Original assignee: CETC 54 Research Institute
Current assignee: CETC 54 Research Institute
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-09
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a miniaturized microwave scattering bimodulus system wireless communication equipment of can backing a burden belongs to communication technology field. The system consists of a service handle, a service processing unit, a modulation and demodulation unit, a radio frequency unit, a monitoring unit, a router module, an interphone gateway unit, a display unit, a combined antenna, an interphone antenna, a WI-FI antenna, a power module, a switch, a lithium battery and a charging and power supply unit; the wireless interphone can support two modes of microwave communication and scattering communication, has a regional wireless access function, supports voice and IP data services, integrates an interphone gateway and can be quickly accessed to a user interphone. The utility model discloses a miniaturized design, light in weight easily deploys, can erect fast and open, can bear by one and carry out the advantage that motor-driven was opened.

Description

Miniaturized wireless communication equipment with dual-mode system capable of carrying out microwave scattering

Technical Field

The utility model relates to the communication technology field, in particular to but miniaturization back of body microwave scattering bimodulus system wireless communication equipment.

Background

In the communication field, the existing miniaturized and back-loadable scattering communication equipment overcomes the defects of high cost, poor maneuverability, huge appearance and the like of the traditional scattering communication equipment, greatly improves the integration, flexibility and functional diversity and controls the cost to a certain extent. With the gradual increase of the requirements of customers on the scattering communication equipment, the single transmission means and the lower transmission rate of the existing miniaturized backscatter equipment cannot meet the use requirements of users.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a miniaturized wireless communication equipment of can bear microwave scattering bimodulus system. The equipment has the advantages of long transmission distance and capability of crossing obstacles; and is suitable for over-the-horizon communication; the microwave communication transmission rate and the communication reliability are high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a small-sized wireless communication device with a load-backed microwave scattering dual-mode system comprises a service handle 1, a modulation and demodulation unit 3, a monitoring unit 5, a router module 6, an interphone gateway unit 7, a display unit 8, a combined antenna 9, an interphone antenna 10, a WI-FI antenna 11, a power module 12, a switch 13, a lithium battery 14 and a charging power supply unit 15; the system also comprises a service processing unit 2 and a radio frequency unit 4;

a first port of the service handle 1 sends and receives voice; a first input port, a second output port and a third input port of the service processing unit 2 are respectively connected with a second output port, a third input port and a fourth output port of the service handle 1, a fourth port of the service processing unit 2 is connected to a second port of the lithium battery 14, a fifth input/output port of the service processing unit is connected to a second input/output port of the router module 6, a sixth output port and a seventh input port of the service processing unit are respectively connected to a second input port and a first output port of the monitoring unit 5, an eighth input port and a ninth output port of the service processing unit are respectively connected to a second output port and a first input port of the modem unit 3, and a tenth output port and an eleventh input port of the service processing unit are respectively connected to a fourth input port and a fifth output port of the radio frequency unit 4;

a third output port, a fourth input port and a fifth input port of the modulation and demodulation unit 3 are respectively connected with a first input port, a second output port and a third output port of the radio frequency unit 4; a sixth input/output port of the radio frequency unit 4 is connected with the first input/output port of the combined antenna 9; a third input/output port of the monitoring unit 5 is connected with a first input/output port of the router module 6, a fourth input/output port of the monitoring unit is connected with a first input/output port of the display unit 8, and a fifth input/output port of the monitoring unit is connected with a first input/output port of the interphone gateway unit 7; a second input/output port of the interphone gateway unit 7 is connected with a first input/output port of the interphone antenna 10; a fifth input/output port of the router module 6 is connected with a first input/output port of the WI-FI antenna 11, and a third port and a fourth port of the router module are both input/output ports of IP data;

a first port of the switch 13 is connected with a first port of the power module 12, a second port of the switch is connected with a first port of the lithium battery 14, and a third port of the switch is connected with a first port of the charging power supply unit 15; a second output port of the power module 12 is connected with a power supply port of each circuit unit; the second input port of the charging and power supplying unit 15 is connected to a 220V ac power supply.

Further, the service processing unit 2 includes a voice codec 16, a monitor 17, an interface conversion module 18 and an auxiliary complex tap 19; wherein, the first input port and the second output port of the voice codec 16 are respectively connected with the second input port and the third input port of the service handle 1, and the third input/output port of the voice codec 16 is connected with the second input/output port of the auxiliary complex tap 19; a first input port and a second output port of the monitor 17 are respectively connected with a fifth output port and a fourth input port of the radio frequency unit 4, a third input port and a fourth output port of the monitor 17 are respectively connected with a first output port and a second input port of the monitor unit 5, a fifth port of the monitor 17 is connected with a second port of the lithium battery 14, a sixth input/output port of the monitor 17 is connected with a first input/output port of the auxiliary complex tap 19, and a seventh input port of the monitor 17 is connected with a fourth output port of the service handle;

the first input/output port of the interface conversion module 18 is connected with the second input/output port of the router module 6, and the second input/output port of the interface conversion module is connected with the third input/output port of the auxiliary complex tap 19; the fourth and fifth output ports of the auxiliary complex tap 19 are connected to the first and second input ports of the modem unit 3, respectively.

Further, the radio frequency unit 4 includes a pre-amplifier 20, a first band selection switch 21, a second band selection switch 22 and a third band selection switch 23, a first filter 24 and a second filter 25, a first final amplifier 26 and a second final amplifier 27, a first circulator 28 and a second circulator 29, a duplexer 30, a directional coupler 31, the combined antenna 9, a first limiter 33 and a second limiter 34, a first low-noise amplifier 35 and a second low-noise amplifier 36, a third filter 37 and a fourth filter 38, a fourth band selection switch 39, a frequency converter 40, a VCO41, a crystal oscillator 42, a fifth filter 43, an amplifier 44, and a monitor 17;

a first input port of the preamplifier 20 is a radio frequency signal inlet; a first input port of the first section selecting switch 21 is connected with a second output port of the preamplifier 20, a second output port of the first section selecting switch 21 is connected with a first input port of the second section selecting switch 22, and a third output port of the first section selecting switch 21 is connected with a first input port of the third section selecting switch 23; a first input port of the first filter 24 is connected to a second output port of the second switch 22, and a second output port of the first filter 24 is connected to a first input port of the first final amplifier 26; a first input port of the second filter 25 is connected to a second output port of the third switch 23, and a second output port of the second filter 25 is connected to a first input port of the second final amplifier 27; a first input port of the first circulator 28 is connected to a second output port of the first final amplifier 26, a second input/output port of the first circulator 28 is connected to a first input/output port of the duplexer 30, and a third output port of the first circulator 28 is connected to a first input port of the first limiter 33; a first input port of the second circulator 29 is connected to a second output port of the second final amplifier 27, a second input/output port of the second circulator 29 is connected to a second input/output port of the duplexer 30, and a third output port of the second circulator 29 is connected to a first input port of the second limiter 34; a first input/output port of the directional coupler 31 is connected to a third input/output port of the duplexer 30, a second input/output port of the directional coupler 31 is connected to a first input/output port of the combined antenna 9, and a third output port of the directional coupler 31 is a coupled signal output; a first input port of the first low noise amplifier 35 is connected to the second output port of the first amplitude limiter 33, and a second output port of the first low noise amplifier 35 is connected to a first input port of the third filter 37; a first input port of the second low noise amplifier 36 is connected to the second output port of the second amplitude limiter 34, and a second output port of the second low noise amplifier 36 is connected to the first input port of the fourth filter 38; a first input port of the fourth switch 39 is connected to a second output port of the third filter 37, a second input port of the fourth switch 39 is connected to a second output port of the fourth filter 38, and a third output port of the fourth switch 39 is connected to a first input port of the frequency converter 40; a first input port of the VCO41 is connected to a second output port of the crystal oscillator 42, and a second output port of the VCO41 is connected to a third input port of the frequency converter 40; a first output port of the crystal oscillator 42 is a clock signal output port; a first input port of the fifth filter 43 is connected to a second output port of the frequency converter 40, a second output port of the fifth filter 43 is connected to a first input port of the amplifier 44, and a second output port of the amplifier 44 outputs an intermediate frequency signal; the first output port of the monitor 17 is a signal transmitting port, the second input port of the monitor 17 is a signal receiving port, and the third input/output port is connected to each circuit control port.

The utility model adopts the beneficial effect that above-mentioned technical scheme produced lies in:

1. the utility model discloses a microwave, the dual mode communication means of scattering can satisfy more application scenes.

2. The utility model discloses the clock that modem unit adopted is by original modem unit from supplying 30.72MHz replacement for the 20MHz that radio frequency unit provided, and the clock stability is higher, and data transmission rate promotes to 34M.

3. The utility model discloses signal processing method further optimizes on original basis, and the threshold promotes to-98 dBm by original-95 dBm under the scattering mode 2Mbps speed, and communication ability is promoted by a wide margin.

4. The utility model discloses monitor function has increased the service and has called the warning function, has promoted user experience effect.

Drawings

Fig. 1 is an electrical schematic diagram of an embodiment of the present invention.

Fig. 2 is an electrical schematic diagram of a service processing unit according to an embodiment of the present invention.

Fig. 3 is an electrical schematic diagram of the rf unit in an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 3, the service handle in fig. 1 is used for sending and receiving voice signals and sending voice call reminding signals, a first port of the service handle sends and receives voice signals with the outside, the voice signals are transmitted to a port of a service processing unit through a second output port to be encoded, an input port of the service handle receives decoded voice signals sent by the port of the service processing unit, an output port of the service handle sends voice call reminding signals to the port of the service processing unit for monitoring data processing, and the service handle is manufactured by SP3.844.024 type waterproof handle manufactured by ge' an electronics limited company.

The service processing unit is used for completing the coding and decoding of voice, the multiple division of interphone voice, wired data and wireless data WI-FI, and the collection and calculation of the electric quantity information of the lithium battery. The traffic processing unit consists of a speech codec 16, a supervision 17, an interface conversion 18 and an auxiliary complex tap 19. Fig. 2 is an electrical schematic diagram of a service processing unit in an embodiment, which connects the lines according to fig. 2. The voice codec 16 completes the amplification of the voice signal input from the output port of the service handle 1, D/A, A/D, PCM coding and 4kb/s voice compression codec, and has the echo cancellation processing function; the monitoring unit 17 completes interaction with monitoring information of the radio frequency unit 4 and the monitoring unit 5 and collection and calculation of electric quantity information of the lithium battery 14, receives control information from an output port of the radio frequency unit according to an RS485 bus protocol input port, simultaneously sends the control information to the input port of the radio frequency unit through the output port, receives control information from the output port of the monitoring unit 5 according to an RS232 bus protocol input port, simultaneously sends the control information to the input port of the monitoring unit 5 through the output port, reads and analyzes voltage data of the port of the lithium battery 14 through the port, and reports the electric quantity information; the interface conversion 18 completes the mutual conversion between the interface level of the router module 6 and the TTL level of the auxiliary multiplexer-demultiplexer 19; the auxiliary multiplexing 19 multiplexes the voice codes output by the voice coding/decoding input/output port, the control data output by the monitoring 17 input/output port, the wired data and the wireless data WI-FI output by the interface conversion 18 input/output port, the multiplexing information code stream is output to the input port of the modulation and demodulation unit 3 for modulation, the information code stream sent by the output port of the modulation and demodulation unit 3 is received and multiplexed, the multiplexing information code stream is respectively restored to the voice information and sent to the voice coding/decoding 16 input/output port, the monitoring information is sent to the monitoring 17 input/output port, and the wired data and the wireless data WI-FI are sent to the interface conversion 18 input/output port;

the utility model discloses modem unit 3's effect is that the multiple access information code stream to the output of business processing unit 2 output port carries out channel coding, QPSK 16QAM modulation, frequency conversion, signal amplification forms radio frequency signal and inputs to radio frequency unit 4 input ports by its output port, and receive the receipt intermediate frequency signal by the output of radio frequency unit 4 output port, will receive intermediate frequency signal and carry out automatic gain control, QPSK 16QAM demodulation and channel decoding, output shunting information code stream to business processing unit 2 output port by the output port.

The microwave-based data transmission line can support two systems of a microwave mode and a scattering mode, the rate in the microwave mode is 2Mbps/4Mbps/8Mbps/16Mbps/34Mbps, the rate in the scattering mode is 4Kbps/64Kbps/128Kbps/256Kbps/1024Kbps/2048Kbps, a 16QAM modulation mode is adopted for 34Mbps, and other rates are QPSK modulation modes. The modem unit 3 of the embodiment is fabricated using a Cyclone series digital field programmable chip manufactured by Alterna corporation and an AD9361 chip manufactured by AD corporation.

The utility model discloses radio frequency unit 4 accomplishes and carries out the filtering to the radio frequency signal 4400MHz ~ 5000MHz of the 3 output port outputs of modem unit, amplifies rated power and sends to 9 input/output ports of combined antenna and carry out frequency conversion output intermediate frequency signal 1250MHz to the radio frequency signal that receiving antenna sent simultaneously and send for modem unit 3 input port, provides the high stability clock signal of 20MHz all the way for modem unit 3 input port through the output port.

The radio frequency unit 4 is composed of a preamplifier 20,

band selection switches

21, 22, and 23,

filters

24 and 25,

final amplifiers

26 and 27,

circulators

28 and 29, a duplexer 30, a directional coupler 31, a combined antenna 32,

limiters

33 and 34, low-noise amplifiers 35 and 36,

filters

37 and 38, a band selection switch 39, a frequency converter 40, a VCO41, a crystal oscillator 42, a filter 43, an amplifier 44, and a monitor 45. Fig. 3 is an electrical schematic diagram of the rf unit 4 in the present embodiment, which is connected to the circuit according to fig. 3.

And in a transmitting channel, an input port of a pre-amplifier receives a radio frequency signal output from an output port of a modulation and demodulation unit, the radio frequency signal is transmitted to

section selection switches

21, 22 and 23 through the port to select high and low frequency sections of the radio frequency signal, the high and low frequency section signals respectively enter input ports of

filters

24 and 25 to filter out-of-band spurious and harmonic waves, then enter final-

stage amplifiers

26 and 27 to be amplified, the amplified radio frequency signal respectively enters

circulators

28 and 29, then enters a duplexer 30 to be filtered and isolated, then passes through a directional coupler 31 and then is transmitted to a free space through a port of a combined antenna 32, and the port of the directional coupler outputs a transmission power detection signal. In the receiving channel, the rf signal received by the combined antenna 32 from the free space passes through the directional coupler 31, and then is sent to the duplexer 30 for filtering and isolating to select the high and low frequency bands, the signal after selection and filtering passes through the

circulators

28, 29 and then enters the

limiters

33, 34 to limit the amplitude of the signal, the signal is output from the limiter port and enters the low noise amplifiers 35, 36 to amplify the signal, and is output to the

filters

37, 38 to filter out-of-band spurious and harmonic, and then is sent to the selector switch 39 to further select the high and low frequency bands, and then is sent to the input port of the frequency converter 40 to mix frequency, after mixing with the local oscillator signal output from the output port of the VCO41, the output of the frequency converter 40 port outputs the intermediate frequency signal 1250MHz, and is sent to the input port of the amplifier 44 to output the input port of the modulation and demodulation unit 3 after amplifying the signal, the port of the crystal oscillator 42 outputs the 20MHz clock signal to the VCO for generating the local oscillator signal, the port outputs 20MHz clock signal to the port 3 of the modulation and demodulation unit, the output port of the monitoring 45 sends control data to the input port of the service processing unit 2, the input port receives the control data from the output port of the service processing unit 2, and the input/output port monitors and reports data to the circuit of the unit. In the embodiments, the

power amplifiers

20, 26, and 27 are fabricated using gan power amplifiers.

The utility model discloses the effect of monitoring unit 5 is control business processing unit 2, modem unit 3, radio frequency unit 4, router module 6, intercom gateway unit 7, display element 8 operating condition, gather duty handle 1 duty call reminder information and lithium cell 14 electric quantity information, carry out the operating frequency setting to equipment, the mode selection, the operating rate selection, output power control, the error code detects, equipment fault detection, equipment working parameter's memory, the operating instruction input and the control information inquiry that provide operational environment support user.

The utility model discloses router module 6 is used for receiving and sending wired data, receives and sends wireless data through WI-FI antenna 11. The module outputs monitoring information sent by an input/output port of the monitoring unit 5 to the WI-FI antenna 11 and a port through the input/output port and sends the monitoring information to terminal equipment, and outputs control information received by the WI-FI antenna 11 and the port to the input/output port of the monitoring unit 5 through the input/output port; and the service data sent by the input/output port of the service processing unit 2 is output to the WI-FI antenna 11 and the port is sent to the terminal equipment through the input/output port, and the service data received by the port of the WI-FI antenna 11 is output to the input/output port of the service processing unit 2 through the input/output port.

The utility model discloses intercom gateway unit 7 effect is through intercom antenna 10 receipt and send the intercom voice, accomplishes functions such as conversion, calling of wireless intercom voice and digital signal.

The utility model discloses display element 8's effect is the control data who sends and receive the monitor cell through input/output port, can set up and inquire equipment parameter, and equipment state can be through LED display screen visual display.

The utility model discloses combined antenna 9's effect is that the radio frequency signal who sends local end radio frequency unit 4 input/output port transmission through input/output port arrives the free space and receives the radio frequency signal who comes from the miniaturized radio frequency signal that can bear the back microwave scattering dual-mode system wireless communication equipment antenna transmission of opposite terminal through input/output port, and combined antenna amplifies transmitted signal and received signal simultaneously. The combined antenna 9 of the embodiment adopts a BXSS120 type scattering antenna manufactured by sienna star exhibition technologies and technologies ltd.

The function of the interphone antenna 10 of the present invention is to transmit the voice signal transmitted from the I/O port of the interphone gateway unit 7 to the free space through the I/O port and to receive the RF signal transmitted from the handheld interphone antenna through the I/O port.

The utility model discloses the effect of WI-FI antenna 11 is through the wireless signal of I/O port transmission of I/O port receiving local router module 6, sends free space through I/O port, receives the wireless signal who comes from the terminal through I/O port, sends for router 6 through I/O port.

The utility model discloses power module 12's effect is to convert +24V direct current into +12V, +5V, for whole equipment provides direct current operating voltage, and the embodiment adopts the preparation of DC/DC converter power module DSD90D-24F4-J1 that the capital science and technology limited company of Shijiazhuang city produced.

The utility model discloses switch 13's effect is when using lithium cell 14 to supply power to equipment, the on-off of the whole platform equipment power supply of control.

The utility model discloses lithium cell 14's effect is through switch 13 for equipment provides the power, guarantees that equipment can normally work under the condition that does not have the alternating current supply.

The utility model discloses the effect of charging power supply unit 15 is to convert the 220V alternating current into +24V direct current, for power module 12 provides input voltage, charges for lithium cell 14.

The device has the following brief working principle:

when the device is in a transmission state, the service processing unit 2 receives a voice signal from the service handle 1 and carries out voice coding processing on the voice signal, and multiplexes the voice coded signal, wired data and wireless data WI-FI output by the router module 6, interphone voice and monitoring information output by the monitoring unit 5 into an information code stream which is input into the modulation and demodulation unit 3 for QPSK/16QAM modulation, shifted and amplified into a radio frequency signal, and the radio frequency signal is output to the radio frequency unit 4, filtered, amplified and transmitted outwards through the combined antenna 9; meanwhile, the combined antenna 9 also receives a radio frequency signal sent by opposite-end miniaturized wireless communication equipment with a back-to-back microwave scattering dual-mode system, the signal is input into the radio frequency unit 4, the radio frequency unit 4 amplifies and down-converts the radio frequency signal into a received intermediate frequency signal and then inputs the signal into the modulation and demodulation unit 3 for QPSK/16QAM demodulation processing, a demodulated information code stream is input into the service processing unit 2 for tapping, voice decoding is restored from the information code stream and then output to the service handle 1, wired data and wireless data WI-FI are output to the router module 6, the processed wired data are directly output to the outside through a port, the wireless data WI-FI are output to the WI-FI antenna through the port for sending, interphone voice data are output to the interphone gateway unit 7 through the monitoring unit 5, the monitoring data are transmitted to the display unit 8 or are transmitted to a terminal webpage control page through the router, completing the sending and receiving communications.

The utility model discloses mounting structure as follows:

the internal structure layout of the host is as follows: the radio frequency unit 4 is tightly attached to the bottom surface of the case, a stud is adopted on the radio frequency unit 4 to support a partition plate, a monitoring unit 5 is installed on the partition plate through a stud, and an interphone gateway unit 7 is installed on the monitoring unit 5 through a stud; the power supply module 12 is tightly attached to the right side surface of the case; the modulation and demodulation unit 3 is tightly attached to the bottom surface of the case, and the service processing unit 2 is installed on the modulation and demodulation unit 3 by adopting a stud; the router module 5 is tightly attached to the bottom surface of the case; the lithium battery 14 is mounted in a battery compartment push-in type behind the chassis.

Then, the eight modules are installed in an equipment case comprising a handle and a corner protector, a display unit 8, a switch 13, a connecting service handle 1, a combined antenna 9, an interphone antenna 10, a WI-FI antenna 11 and a wall penetrating seat of a router module are installed on a front panel of the case, a battery input end socket is installed at the back of the case, the interphone antenna 10 and the WI-FI antenna 11 are connected with the wall penetrating seat of the front panel of the case, and the combined antenna 9 and a charging power supply unit 15 are connected with the wall penetrating seat of the front panel of the case through cables.

Claims

1. A small-sized wireless communication device with a load-backed microwave scattering dual-mode system comprises a service handle (1), a modulation and demodulation unit (3), a monitoring unit (5), a router module (6), an interphone gateway unit (7), a display unit (8), a combined antenna (9), an interphone antenna (10), a WI-FI antenna (11), a power module (12), a switch (13), a lithium battery (14) and a charging and power supply unit (15); the system is characterized by also comprising a service processing unit (2) and a radio frequency unit (4);

a first port of the service handle (1) sends and receives voice; a first input port, a second output port and a third input port of the service processing unit (2) are respectively connected with a second output port, a third input port and a fourth output port of the service handle (1), a fourth port of the service processing unit (2) is connected with a second port of the lithium battery (14), a fifth input/output port of the service processing unit is connected with a second input/output port of the router module (6), a sixth input port and a seventh input port of the service processing unit are respectively connected with a second input port and a first output port of the monitoring unit (5), an eighth input port and a ninth output port of the service processing unit are respectively connected with a second output port and a first input port of the modulation and demodulation unit (3), and a tenth output port and an eleventh input port of the service processing unit are respectively connected with a fourth input port and a fifth output port of the radio frequency unit (4);

a third output port, a fourth input port and a fifth input port of the modulation and demodulation unit (3) are respectively connected with a first input port, a second output port and a third output port of the radio frequency unit (4); a sixth input/output port of the radio frequency unit (4) is connected with the first input/output port of the combined antenna (9); a third input/output port of the monitoring unit (5) is connected with a first input/output port of the router module (6), a fourth input/output port of the monitoring unit is connected with a first input/output port of the display unit (8), and a fifth input/output port of the monitoring unit is connected with a first input/output port of the interphone gateway unit (7); the second input/output port of the interphone gateway unit (7) is connected with the first input/output port of the interphone antenna (10); a fifth input/output port of the router module (6) is connected with a first input/output port of the WI-FI antenna (11), and a third port and a fourth port of the router module are both input/output ports of IP data;

a first port of the switch (13) is connected with a first port of the power supply module (12), a second port of the switch is connected with a first port of the lithium battery (14), and a third port of the switch is connected with a first port of the charging power supply unit (15); a second output port of the power supply module (12) is connected with a power supply port of each circuit unit; and a second input port of the charging power supply unit (15) is connected with 220V alternating current power supply.

2. The miniaturized wireless communication device with dual-mode system capable of backscattering microwave scattering according to claim 1, wherein the service processing unit (2) comprises a voice codec (16), a monitor (17), an interface conversion module (18) and an auxiliary complex tap (19); wherein, the first input port and the second output port of the voice codec (16) are respectively connected with the second input port and the third input port of the service handle (1), and the third input/output port of the voice codec (16) is connected with the second input/output port of the auxiliary complex tap (19); a first input port and a second output port of the monitor (17) are respectively connected with a fifth output port and a fourth input port of the radio frequency unit (4), a third input port and a fourth output port of the monitor (17) are respectively connected with a first output port and a second input port of the monitor unit (5), a fifth port of the monitor (17) is connected with a second port of the lithium battery (14), a sixth input/output port of the monitor (17) is connected with a first input/output port of the auxiliary complex branch (19), and a seventh input port of the monitor (17) is connected with a fourth output port of the service handle;

the first input/output port of the interface conversion module (18) is connected with the second input/output port of the router module (6), and the second input/output port of the interface conversion module is connected with the third input/output port of the auxiliary complex tap (19); the fourth output port and the fifth input port of the auxiliary complex tap (19) are respectively connected with the first input port and the second output port of the modulation and demodulation unit (3).

3. The miniaturized two-mode radio communication device with microwave scattering capable of being carried out in a negative-backed manner according to claim 1, wherein the radio frequency unit (4) comprises a preamplifier (20), a first band-selection switch (21), a second band-selection switch (22), a third band-selection switch (23), a first filter (24), a second filter (25), a first final amplifier (26), a second final amplifier (27), a first circulator (28), a second circulator (29), a duplexer (30), a directional coupler (31), a combined antenna (9), a first limiter (33), a second limiter (34), a first low-noise amplifier (35), a second low-noise amplifier (36), a third filter (37), a fourth filter (38), a fourth band-selection switch (39), a frequency converter (40), a VCO (41), a crystal oscillator (42), a fifth filter (43), a VCO (43), and a third filter (43), An amplifier (44) and a monitor (17);

a first input port of the preamplifier (20) is a radio frequency signal inlet; a first input port of the first section selecting switch (21) is connected with a second output port of the preamplifier (20), a second output port of the first section selecting switch (21) is connected with a first input port of the second section selecting switch (22), and a third output port of the first section selecting switch (21) is connected with a first input port of the third section selecting switch (23); a first input port of the first filter (24) is connected to a second output port of the second switch (22), and a second output port of the first filter (24) is connected to a first input port of the first final amplifier (26); a first input port of the second filter (25) is connected with a second output port of the third section selecting switch (23), and a second output port of the second filter (25) is connected with a first input port of the second final-stage amplifier (27); a first input port of the first circulator (28) is connected to a second output port of the first final amplifier (26), a second input/output port of the first circulator (28) is connected to a first input/output port of the duplexer (30), and a third output port of the first circulator (28) is connected to a first input port of the first limiter (33); a first input port of the second circulator (29) is connected to a second output port of the second final amplifier (27), a second input/output port of the second circulator (29) is connected to a second input/output port of the duplexer (30), and a third output port of the second circulator (29) is connected to a first input port of the second limiter (34); the first input/output port of the directional coupler (31) is connected with the third input/output port of the duplexer (30), the second input/output port of the directional coupler (31) is connected with the first input/output port of the combined antenna (9), and the third output port of the directional coupler (31) is a coupled signal output; a first input port of the first low noise amplifier (35) is connected with a second output port of the first amplitude limiter (33), and a second output port of the first low noise amplifier (35) is connected with a first input port of the third filter (37); a first input port of a second low noise amplifier (36) is connected with a second output port of the second amplitude limiter (34), and a second output port of the second low noise amplifier (36) is connected with a first input port of a fourth filter (38); a first input port of the fourth section selecting switch (39) is connected with a second output port of the third filter (37), a second input port of the fourth section selecting switch (39) is connected with a second output port of the fourth filter (38), and a third output port of the fourth section selecting switch (39) is connected with a first input port of the frequency converter (40); a first input port of the VCO (41) is connected with a second output port of the crystal oscillator (42), and a second output port of the VCO (41) is connected with a third input port of the frequency converter (40); a first output port of the crystal oscillator (42) is a clock signal output port; a first input port of the fifth filter (43) is connected with a second output port of the frequency converter (40), a second output port of the fifth filter (43) is connected with a first input port of the amplifier (44), and a second output port of the amplifier (44) is used for outputting intermediate frequency signals; the first output port of the monitor (17) is a signal transmitting port, the second input port of the monitor (17) is a signal receiving port, and the third input/output port is connected with each circuit control port.