CN2338882Y - Combination type suppressor for anti-radio interference - Google Patents
Combination type suppressor for anti-radio interference Download PDFInfo
- Publication number
- CN2338882Y CN2338882Y CN 98228388 CN98228388U CN2338882Y CN 2338882 Y CN2338882 Y CN 2338882Y CN 98228388 CN98228388 CN 98228388 CN 98228388 U CN98228388 U CN 98228388U CN 2338882 Y CN2338882 Y CN 2338882Y
- Authority
- CN
- China
- Prior art keywords
- circulator
- filter
- screw
- connector
- terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a combined suppressor for the radio interference resistance. The utility model comprises a circulator, a connector, an absorbing load, and a screw filter. The circulator comprises three terminal ports A, B, C. The circuit direction of the circulator is A to B to C. The output terminal of a transmitter is connected to the A terminal of the circulator. The absorbing load is connected to the C terminal of the circulator. The connector is connected between the B terminal of the circulator and the input terminal of the screw filter. An antenna is connected to the output terminal of the screw filter. The utility model has the advantages of effective suppression of the external interference, effective absorption of the external interference, small size, and manufacturing cost saving. The utility model is suitable for the technical field of the wireless communication, the radar, and the electronic countermeasure.
Description
The utility model belongs to anti-radio interference device technique field.
Along with the development of radio communication cause, the radio interference problem becomes more and more serious.For example, the paging board usually influences the communication on the machine to the interference of aviation, can cause the aircraft grounding when serious even causes the accident.Reduce radio interference, become an important research project.Radio interference mainly contains Intermodulation Interference, barrage jamming and receiver and disturbs.Wherein the most serious is Intermodulation Interference, disturbs to very so that frequency spectrum is intensive especially.In order to reduce Intermodulation Interference, in prior art, adopted independent isolator or independent filter, but effect is all undesirable, disturb still bigger.
The purpose of this utility model is to provide a kind of combined suppressor of the anti-interference better effects if by circulator, load and screw-filter combination.
The purpose of this utility model is achieved in that a kind of anti-radio interference combined suppressor, comprises circulator, connector, screw-filter and absorbing load.Circulator is ferrite lumped parameter three end circulators, and A, B, three ports of C are arranged, and its belt direction is to be held by A end → B end → C.Screw-filter can also can be many resonant cavitys screw-filter for single resonance chamber screw-filter, and band limits is the 100-500 megahertz, and resonant cavity cylindrical cavity diameter is Φ=30-70mm, square chamber length of side S=Φ/1.2, and connector is the very little good conductor of resistance value.Absorbing load is connected forms isolator on the C end of circulator, the transmitter output is connected the A end of circulator, connector one end is connected on the B end of circulator, the other end is connected on the input of screw-filter, signal on the circulator B end can directly be exported through connector, and the output of screw-filter is connected with antenna.
In the work, the flow direction of forward signal is, by transmitter output → circulator A end → B end → connector → screw-filter → antenna, forward loss is very little and can the harmonic wave in the transmitter output signal be suppressed.Reverse signal one road flows to and is, antenna → screw-filter → connector → circulator B end → C end → absorbing load, and another road flows to transmitter.The isolation that flows to the reverse signal of transmitter improves because of the amplitude-frequency characteristic and the comprehensive of isolator reverse characteristic of screw-filter, thereby can be suppressed to the interference signal of transmitter effectively.
The utility model has the advantages that, both can increase inhibition to harmonic wave in the forward transmitted signal of transmitter, also can increase transmitting power, raising is to the isolation of the reverse transfer signal of external interference, absorb effectively and suppress and disturb, volume is little, and cost is low, is applicable to fields such as radio communication, radar, electronic countermeasures.
Fig. 1 is a structure chart of the present utility model.Fig. 1 is described as follows, and among Fig. 1,1 is circulator, and 2 is connector, and 4 is absorbing load, and 3 is screw-filter.
An embodiment of the present utility model is as follows: circulator adopts ferrite lumped parameter three end circulators, and connector is diameter of phi=2mm, the silver-coated copper wire of long 20mm, and the B that is welded to circulator holds and the screw-filter input.And the receipts load is 50 Europe ohmic loads.Screw-filter is the dual resonant cavity screw-filter, and its centre frequency is 150 megahertzes, and three dB bandwidth is 2.5 megahertzes, resonant cavity diameter of phi=38mm.
Claims (1)
1, a kind of anti-radio interference combined suppressor is characterized in that comprising circulator (1), connector (2), absorbing load (4) and screw-filter (3); Circulator (1) is ferrite lumped parameter three end circulators, has A, B, C three ports, and its belt direction is to be held by A end → B end → C; Connector (2) is the very little good conductor of resistance value; Screw-filter (3) can also can be with many resonant cavitys screw-filter with single resonance chamber screw-filter, and its band limits is the 100-500 megahertz; Absorbing load (4) is connected the C end of circulator (1), the transmitter output is connected the A end of circulator, connector (2) one ends are connected on the B end of circulator (1), the other end is connected on the input of screw-filter (3), make the signal on the B end of circulator (1) can be directly through connector (2) output, antenna be connected on the output of screw-filter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228388 CN2338882Y (en) | 1998-03-03 | 1998-03-03 | Combination type suppressor for anti-radio interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228388 CN2338882Y (en) | 1998-03-03 | 1998-03-03 | Combination type suppressor for anti-radio interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2338882Y true CN2338882Y (en) | 1999-09-15 |
Family
ID=33978505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98228388 Expired - Fee Related CN2338882Y (en) | 1998-03-03 | 1998-03-03 | Combination type suppressor for anti-radio interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2338882Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924608B (en) * | 2006-09-15 | 2010-04-21 | 中国舰船研究设计中心 | Radar antenna electromagnetic interference suppressor and shielding device |
| CN101251596B (en) * | 2008-03-21 | 2010-09-22 | 北京理工大学 | Wind profile radar non-phase parameter radio interference inhibition method |
| CN103220043A (en) * | 2013-03-27 | 2013-07-24 | 广州飞瑞敖电子科技有限公司 | Combiner or shunt way of double-line WiFi signal mixed transmission |
| CN108183297A (en) * | 2018-02-02 | 2018-06-19 | 电子科技大学 | A kind of lumped-parameter circulator |
-
1998
- 1998-03-03 CN CN 98228388 patent/CN2338882Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924608B (en) * | 2006-09-15 | 2010-04-21 | 中国舰船研究设计中心 | Radar antenna electromagnetic interference suppressor and shielding device |
| CN101251596B (en) * | 2008-03-21 | 2010-09-22 | 北京理工大学 | Wind profile radar non-phase parameter radio interference inhibition method |
| CN103220043A (en) * | 2013-03-27 | 2013-07-24 | 广州飞瑞敖电子科技有限公司 | Combiner or shunt way of double-line WiFi signal mixed transmission |
| CN103220043B (en) * | 2013-03-27 | 2015-08-26 | 广州飞瑞敖电子科技有限公司 | Conjunction road/shunt the mode of two-way WiFi signal mixed transport |
| CN108183297A (en) * | 2018-02-02 | 2018-06-19 | 电子科技大学 | A kind of lumped-parameter circulator |
| CN108183297B (en) * | 2018-02-02 | 2020-02-14 | 电子科技大学 | Centralized parameter circulator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103633400B (en) | A kind of micro-strip duplexer based on electromagnetism hybrid coupled | |
| CN110148816B (en) | Multi-pass zero-reflection filter | |
| CN110266284A (en) | The negative group delay microwave circuit of double frequency with low signal attenuation and optional frequency ratio | |
| CN2338882Y (en) | Combination type suppressor for anti-radio interference | |
| CN201142359Y (en) | GPS time service active antenna | |
| CN201408842Y (en) | Double-frequency active receiving antenna of GPS and No.1 beidou system | |
| CN2322326Y (en) | Anti radio interference double-filter combination type inhibitor | |
| CN202275900U (en) | S-band diplexer | |
| CN205723901U (en) | A kind of L-band microstrip directional coupler circuit | |
| CN107196676A (en) | FDD multi-standard high-temperature superconductor radio-frequency front-end adapters | |
| CN210431370U (en) | Switch filtering module | |
| CN209787130U (en) | High-power band-pass filter | |
| CN203883094U (en) | Micro-strip diplexer based on electromagnetic mixed coupling | |
| CN207150570U (en) | A kind of multipath reception passage | |
| CN111565031A (en) | Absorption type amplitude limiter | |
| CN2369423Y (en) | Multiplexer with isolator at output | |
| CN202550044U (en) | Band-stop filter based on coaxial cavities | |
| CN212343741U (en) | Absorption type amplitude limiter | |
| CN216597927U (en) | Miniaturized high-isolation duplex device | |
| CN210897594U (en) | Anti high overload source antenna | |
| CN219107432U (en) | Antenna module and electronic equipment | |
| CN218679063U (en) | X-waveband double-channel transceiving component | |
| CN107483062A (en) | A kind of multipath reception passage | |
| CN210129863U (en) | Multifunctional X-band transceiving component | |
| CN213816385U (en) | Filter with transmission zero |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |