CN109541554B - Multipoint positioning monitoring system transmitting device - Google Patents
Multipoint positioning monitoring system transmitting device Download PDFInfo
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- CN109541554B CN109541554B CN201811448239.XA CN201811448239A CN109541554B CN 109541554 B CN109541554 B CN 109541554B CN 201811448239 A CN201811448239 A CN 201811448239A CN 109541554 B CN109541554 B CN 109541554B
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- independent cavity
- power amplifier
- transmitting device
- box body
- monitoring system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/282—Transmitters
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Transmitters (AREA)
Abstract
The invention belongs to the field of radar electronic information communication, and particularly relates to a multipoint positioning monitoring system transmitting device which comprises a box body, a radio frequency amplifying circuit and a monitoring circuit, wherein the box body is provided with a plurality of first connecting wires; the front side of the box body is provided with an independent cavity I and an independent cavity II, the back side of the box body is provided with an independent cavity III, and the independent cavity II and the independent cavity III are arranged in a back-to-back mode; the radio frequency amplification circuit is arranged in the independent cavity I, and the monitoring circuits are respectively arranged in the independent cavity II and the independent cavity III; the radio frequency amplifying circuit and the monitoring circuit are integrated into the same component and are arranged in an isolated mode. The invention has the advantages of compact structure, good heat dissipation effect and strong electromagnetic compatibility, and improves the working performance of the transmitting device.
Description
Technical Field
The invention belongs to the field of radar electronic information communication, and particularly relates to a multipoint positioning monitoring system transmitting device.
Background
The radar transmitting device is one of the core systems of the radar, and has the function of amplifying the power of milliwatt-level micro radio frequency pulse transmitted from the excitation source to obtain kilowatt-level and megawatt-level strong radio frequency pulse, and transmitting the amplified kilowatt-level and megawatt-level strong radio frequency pulse to the antenna through the high-frequency feeder system to radiate the amplified milliwatt-level micro radio frequency pulse to a target.
The transmitting device of the multipoint positioning monitoring system is required to be capable of providing a correction signal and an interrogation signal, the two signals are different in power and are isolated from each other, and the transmitting device is required to be capable of reliably operating for a long time and is miniaturized in structure. In a conventional transmitter structure, a separate transmitter is designed for different excitation signals, and the rf amplifying circuit and the monitoring circuit are respectively located in different components, so that there are many components in the transmitter system, and problems such as system heat dissipation and electromagnetic compatibility are easily caused.
Disclosure of Invention
According to the problems in the prior art, the invention provides the multipoint positioning monitoring system transmitting device which is compact in structure, good in heat dissipation effect and strong in electromagnetic compatibility, and the working performance of the transmitting device is improved.
The invention adopts the following technical scheme:
a multipoint positioning monitoring system transmitting device comprises a box body, a radio frequency amplifying circuit and a monitoring circuit; the front side of the box body is provided with an independent cavity I and an independent cavity II, the back side of the box body is provided with an independent cavity III, and the independent cavity II and the independent cavity III are arranged in a back-to-back mode; the radio frequency amplification circuit is arranged in the independent cavity I, and the monitoring circuits are respectively arranged in the independent cavity II and the independent cavity III.
Preferably, the radio frequency amplifying circuit comprises a 3W power amplifier, a 180W power amplifier, a single-pole double-throw PIN switch and a 1000W power amplifier; the input end of the 3W power amplifier is a signal input end, the output end of the 3W power amplifier is connected with the input end of the 180W power amplifier through a transmission microstrip plate, the output end of the 180W power amplifier is connected with one microstrip plate interface of the single-pole double-throw PIN switch, and the other microstrip plate interface of the single-pole double-throw PIN switch is connected with the input end of the 1000W power amplifier; and the SMA interface of the single-pole double-throw PIN switch and the output end of the 1000W power amplifier are connected with a monitoring circuit.
Further preferably, an attenuator I is arranged between the single-pole double-throw PIN switch and the 1000W power amplifier, and an attenuator II is arranged between the 1000W power amplifier and the monitoring circuit.
More preferably, an isolator i is connected between the 180W power amplifier and the single-pole double-throw PIN switch, and an isolator ii is connected between the 1000W power amplifier and the attenuator ii.
Further preferably, the monitoring circuit comprises a detector, an FPGA module, a dual directional coupler I and a dual directional coupler II; the detector, the double-directional coupler I and the double-directional coupler II are all arranged in an independent cavity II, and the FPGA module is arranged in an independent cavity III.
Preferably, the main channel interface of the double-directional coupler I is connected with the SMA interface of the single-pole double-throw PIN switch, and the main channel interface of the double-directional coupler II is connected with the output end of the attenuator II; and coupling interfaces of the dual directional coupler I and the dual directional coupler II are connected with the input end of the detector, and the output end of the detector is connected with the input end of the FPGA module.
Preferably, the box body is provided with a heat dissipation structure on the back of the independent cavity I; the heat dissipation structure is composed of a plurality of evenly distributed fins.
Preferably, the openings of the independent cavity I and the independent cavity II are covered with large cover plates, and the opening of the independent cavity III is covered with a small cover plate; a front cover plate is arranged at one end part of the box body close to the independent cavity I.
Preferably, the box body, the large cover plate, the small cover plate and the front cover plate are all made of aluminum alloy materials, and the surfaces of the plates are subjected to conductive oxidation treatment.
The invention has the advantages and beneficial effects that:
1) the common transmitting device is designed to be a single transmitting device for different excitation signals, and the radio frequency amplifying circuit and the monitoring circuit are respectively positioned in different components; the radio frequency amplifying circuit and the monitoring circuit are integrated into the same component and are arranged in an isolated mode; under the condition that the mutual influence of the radio frequency amplifying circuit and the monitoring circuit is small, the compact miniaturization of the transmitting device is realized, and the applicability of the transmitting device is improved.
2) The invention combines partial links (3W power amplifier, 180W power amplifier) of the inquiry channel and the whole link of the correction channel, and through setting a single-pole double-throw PIN switch, when the input signal is the inquiry signal, the inquiry signal is output from the inquiry output port of the single-pole double-throw PIN switch through the selection of the single-pole double-throw PIN switch and is sent to the inquiry channel output stage amplifier. When the input signal is a correction signal, the correction signal is output from a correction output port of the single-pole double-throw PIN switch through the selection of the single-pole double-throw PIN switch; therefore, the amplifier module provided by the invention has the advantages that the structural arrangement reduces the number of modules, promotes the miniaturization of the structure, and reduces the influence of the problems of heat dissipation and electromagnetic compatibility on the working performance of the transmitting device.
3) An attenuator I is arranged between the single-pole double-throw PIN switch and a 1000W power amplifier, and an attenuator II is arranged between the 1000W power amplifier and a monitoring circuit; the input ends of the 1000W power amplifier and the single-pole double-throw PIN switch are ensured to have proper power level.
4) An isolator I is connected between a 180W power amplifier and a single-pole double-throw PIN switch, and an isolator II is connected between a 1000W power amplifier and an attenuator II; the forward non-attenuation of the signal is ensured to be transmitted to a single-pole double-throw PIN switch by a 180W power amplifier and to a monitoring circuit by a 1000W power amplifier.
Drawings
Fig. 1 is a partial structural diagram of a transmitting device of the present invention.
Fig. 2 is a partial structural diagram of a transmitting device of the present invention.
Fig. 3 is a partial structural view of a transmitting apparatus according to the present invention.
Fig. 4 is a partial structural view of a transmitting apparatus of the present invention.
Fig. 5 is a schematic diagram of the rf amplifier circuit according to the present invention.
Fig. 6 is a schematic diagram of the transmitting device of the present invention.
Reference numerals:
the device comprises a box 1, a radio frequency amplification circuit 2, a monitoring circuit 3, a heat dissipation structure 4, an independent cavity I11, an independent cavity II 12, an independent cavity III 13, an independent cavity III 14, a large cover plate 15, a small cover plate 16, a front cover plate 21-3W power amplifier 22-180W power amplifier 23, a single-pole double-throw PIN switch 24-1000W power amplifier 25-attenuator I, an attenuator II 26, an isolator I27, an isolator II 28, a detector 31, an FPGA module 32, a double-directional coupler I33, a double-directional coupler II 34, and fins 41.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a multipoint positioning monitoring system transmitting device includes a box 1, a radio frequency amplifying circuit 2 and a monitoring circuit 3; the front side of the box body 1 is provided with an independent cavity I11 and an independent cavity II 12, the back side of the box body 1 is provided with an independent cavity III 13, and the independent cavity II 12 and the independent cavity III 13 are arranged in a back-to-back mode; the radio frequency amplifying circuit 2 is arranged in the independent cavity I11, and the monitoring circuit 3 is respectively arranged in the independent cavity II 12 and the independent cavity III 13.
As shown in fig. 5, the radio frequency amplifying circuit 2 includes a 3W power amplifier 21, a 180W power amplifier 22, a single-pole double-throw PIN switch 23, a 1000W power amplifier 24; the input end of the 3W power amplifier 21 is a signal input end, the output end of the 3W power amplifier 21 is connected with the input end of the 180W power amplifier 22 through a transmission microstrip plate, the output end of the 180W power amplifier 22 is connected with one microstrip plate interface of the single-pole double-throw PIN switch 23, and the other microstrip plate interface of the single-pole double-throw PIN switch 23 is connected with the input end of the 1000W power amplifier 24; the SMA interface of the single-pole double-throw PIN switch 23 and the output end of the 1000W power amplifier 24 are both connected with the monitoring circuit 3.
An attenuator I25 is arranged between the single-pole double-throw PIN switch 23 and the 1000W power amplifier 24, and an attenuator II 26 is arranged between the 1000W power amplifier 24 and the monitoring circuit 3.
An isolator I27 is connected between the 180W power amplifier 22 and the single-pole double-throw PIN switch 23, and an isolator II 28 is connected between the 1000W power amplifier 24 and the attenuator II 26.
The monitoring circuit 3 comprises a detector 31, an FPGA module 32, a bi-directional coupler I33 and a bi-directional coupler II 34; the detector 31, the double-directional coupler I33 and the double-directional coupler II 34 are all arranged in an independent cavity II 12, and the FPGA module 32 is arranged in an independent cavity III 13.
The main channel interface of the double-directional coupler I33 is connected with the SMA interface of the single-pole double-throw PIN switch 23, and the main channel interface of the double-directional coupler II 34 is connected with the output end of the attenuator II 26; the coupling interfaces of the first bi-directional coupler 33 and the second bi-directional coupler 34 are both connected with the input end of the detector 31, and the output end of the detector 31 is connected with the input end of the FPGA module 32.
The box body 1 is provided with a heat dissipation structure 4 on the back of the independent cavity I11; the heat dissipation structure 4 is composed of a plurality of evenly distributed fins 41.
The openings of the independent cavity I11 and the independent cavity II 12 are covered with a large cover plate 14, and the opening of the independent cavity III 13 is covered with a small cover plate 15; a front cover plate 16 is arranged at one end part of the box body 1 close to the independent cavity I11.
The box body 1, the large cover plate 14, the small cover plate 15 and the front cover plate 16 are all made of aluminum alloy materials, and the surfaces of the plates are all subjected to conductive oxidation treatment.
As shown in fig. 6, when the transmitter of the present invention works, an interrogation rf excitation signal and a calibration rf excitation signal are input from an input end of a 3W power amplifier 21, the interrogation rf excitation signal enters a 180W power amplifier 22 after being amplified by the 3W power amplifier 21, is re-amplified by the 180W power amplifier 22, is partially attenuated by an attenuator i 25, outputs a 50W rf signal, enters a 1000W power amplifier 24 after being selected by a single-pole double-throw PIN switch 23, is re-amplified by the 1000W power amplifier 24 and modulated and attenuated by an attenuator ii 26, outputs a 750W interrogation signal to a detector 31 through a bidirectional coupler ii 34 of an interrogation channel, and is transmitted to a feeder system after being detected by the detector 31 and AD sampled by an FPGA module.
The input correction radio frequency excitation signal enters the 180W power amplifier 22 after being amplified by the 3W power amplifier 21, is re-amplified by the 180W power amplifier 22, is partially attenuated by the attenuator I25 and then outputs a 50W radio frequency signal, enters the double-directional coupler I33 of the correction channel after being selected by the single-pole double-throw PIN switch 23 and outputs a correction signal to the detector 31, and is sent to the feeder system after being detected by the detector 31 and AD (analog-to-digital) sampled by the FPGA (field programmable gate array) module.
In summary, the invention provides a multipoint positioning monitoring system transmitting device which has the advantages of compact structure, good heat dissipation effect and strong electromagnetic compatibility, and improves the working performance of the transmitting device.
Claims (8)
1. A multipoint positioning monitoring system transmitting device, characterized by: comprises a box body (1), a radio frequency amplifying circuit (2) and a monitoring circuit (3); the front side of the box body (1) is provided with an independent cavity I (11) and an independent cavity II (12), the back side of the box body (1) is provided with an independent cavity III (13), and the independent cavity II (12) and the independent cavity III (13) are arranged in a back-to-back mode; the radio frequency amplification circuit (2) is arranged in the independent cavity I (11), and the monitoring circuit (3) is respectively arranged in the independent cavity II (12) and the independent cavity III (13);
the radio frequency amplification circuit (2) comprises a 3W power amplifier (21), a 180W power amplifier (22), a single-pole double-throw PIN switch (23) and a 1000W power amplifier (24); the input end of the 3W power amplifier (21) is a signal input end, the output end of the 3W power amplifier (21) is connected with the input end of the 180W power amplifier (22) through a transmission microstrip plate, the output end of the 180W power amplifier (22) is connected with one microstrip plate interface of the single-pole double-throw PIN switch (23), and the other microstrip plate interface of the single-pole double-throw PIN switch (23) is connected with the input end of the 1000W power amplifier (24); the SMA interface of the single-pole double-throw PIN switch (23) and the output end of the 1000W power amplifier (24) are connected with the monitoring circuit (3).
2. The multipoint positioning monitoring system transmitting device of claim 1, wherein: an attenuator I (25) is arranged between the single-pole double-throw PIN switch (23) and the 1000W power amplifier (24), and an attenuator II (26) is arranged between the 1000W power amplifier (24) and the monitoring circuit (3).
3. The multipoint positioning monitoring system transmitting device of claim 2, wherein: an isolator I (27) is connected between the 180W power amplifier (22) and the single-pole double-throw PIN switch (23), and an isolator II (28) is connected between the 1000W power amplifier (24) and the attenuator II (26).
4. A multipoint positioning monitoring system transmitting device as claimed in claim 3 wherein: the monitoring circuit (3) comprises a detector (31), an FPGA module (32), a bidirectional coupler I (33) and a bidirectional coupler II (34); the detector (31), the double-directional coupler I (33) and the double-directional coupler II (34) are all arranged in the independent cavity II (12), and the FPGA module (32) is arranged in the independent cavity III (13).
5. The multipoint positioning monitoring system transmitting device of claim 4, wherein: a main channel interface of the double-directional coupler I (33) is connected with an SMA interface of the single-pole double-throw PIN switch (23), and a main channel interface of the double-directional coupler II (34) is connected with an output end of the attenuator II (26); the coupling interfaces of the first bi-directional coupler (33) and the second bi-directional coupler (34) are connected with the input end of the detector (31), and the output end of the detector (31) is connected with the input end of the FPGA module (32).
6. The multipoint positioning monitoring system transmitting device of claim 1, wherein: the box body (1) is provided with a heat dissipation structure (4) on the back of the independent cavity I (11); the heat dissipation structure (4) is composed of a plurality of uniformly distributed fins (41).
7. The multipoint positioning monitoring system transmitting device of claim 1, wherein: the openings of the independent cavity I (11) and the independent cavity II (12) are covered with a large cover plate (14), and the opening of the independent cavity III (13) is covered with a small cover plate (15); a front cover plate (16) is arranged at one end part of the box body (1) close to the independent cavity I (11).
8. The multipoint positioning monitoring system transmitting device of claim 7, wherein: the box body (1), the large cover plate (14), the small cover plate (15) and the front cover plate (16) are all made of aluminum alloy materials, and the surfaces of the plates are all subjected to conductive oxidation treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448239.XA CN109541554B (en) | 2018-11-30 | 2018-11-30 | Multipoint positioning monitoring system transmitting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448239.XA CN109541554B (en) | 2018-11-30 | 2018-11-30 | Multipoint positioning monitoring system transmitting device |
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| Publication Number | Publication Date |
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| CN109541554A CN109541554A (en) | 2019-03-29 |
| CN109541554B true CN109541554B (en) | 2020-06-30 |
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| CN201811448239.XA Active CN109541554B (en) | 2018-11-30 | 2018-11-30 | Multipoint positioning monitoring system transmitting device |
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| CN112034224B (en) * | 2020-08-25 | 2023-07-14 | 中国电子科技集团公司第三十六研究所 | Coupling detector |
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| US6686875B1 (en) * | 2002-10-04 | 2004-02-03 | Phase Iv Systems, Inc. | Bi-directional amplifier module for insertion between microwave transmission channels |
| CN201048371Y (en) * | 2007-06-28 | 2008-04-16 | 中国电子科技集团公司第五十四研究所 | Miniaturization second frequency conversion transceiver |
| CN205484779U (en) * | 2016-02-23 | 2016-08-17 | 安徽四创电子股份有限公司 | Electron emission machine |
| CN205945654U (en) * | 2016-08-29 | 2017-02-08 | 成都川美新技术股份有限公司 | C wave band pulse power amplifier |
| CN108375757B (en) * | 2018-02-01 | 2021-02-05 | 深圳市华讯方舟微电子科技有限公司 | Mounting structure for a transmit assembly of a phased array transmit system |
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