CN1835285B - RF sum-difference receiver - Google Patents
RF sum-difference receiver Download PDFInfo
- Publication number
- CN1835285B CN1835285B CN200610039717A CN200610039717A CN1835285B CN 1835285 B CN1835285 B CN 1835285B CN 200610039717 A CN200610039717 A CN 200610039717A CN 200610039717 A CN200610039717 A CN 200610039717A CN 1835285 B CN1835285 B CN 1835285B
- Authority
- CN
- China
- Prior art keywords
- reception device
- poor reception
- passage
- channel
- poor
- 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
Landscapes
- Superheterodyne Receivers (AREA)
Abstract
The receiver includes four pieces of sum-difference (SD) receiver. Each SD receiver includes sum-coupling piece, coupling window of difference signal, two input channels, difference channel and sum channel. Input channels of the first, second SD receivers are connected to four pieces of input ends. The input channel of the third SD receiver is connected to difference channel of the first, second SD receivers. The input channel of the fourth SD receiver is connected to the sum channels of the first, second SD receivers respectively. The sum channel of the third SD receiver is connected to port of sum of pitching difference; and difference channel of it is connected to load port. The sum channel and the difference channel of fourth SD receiver are connected to port of sum channel and port of azimuth difference. The sum-coupling piece and coupling window of difference signal are located at centerline of the sum channel. Features are: excellent performance and good size.
Description
Technical field
The present invention relates to a kind of radio frequency and poor reception device, horizontal radio frequency and poor reception device in the dull and stereotyped slot antenna of especially a kind of radar belong to microwave antenna feeder technical field.
Background technology
That the dull and stereotyped vertically slot array (antenna) antenna of waveguide is widely used in is airborne, missile-borne and satellite antenna, in order to carry out the bidimensional precision angle, usually adopt bidimensional pulse angle measurement system, that is front is divided into four quadrant: A, B, C, D, and A+B+C+D is that ∑ and channel, A+B-(C+D) are Δ β trim channel for Δ α gun parallax channel, A+C-(B+D).In order to realize extracting with difference signal, often adopt radio frequency and poor reception device (double T) to realize that the right and left homophase enters the H arm in the above waveguide transmission system of L-band, form and signal, the anti-phase E arm that enters of the right and left forms difference signal.
Do not have in the ground radar system under the restriction of volume size, adopt vertical radio frequency and poor reception device (double T) usually.In airborne, missile-borne PD radar flat slot antenna, because volume, size and weight are subjected to strict restriction, therefore do not allow to adopt vertical radio frequency and poor reception device (double T), can only adopt horizontal radio frequency and poor reception device (double T).
In horizontal double T, horizontal radio frequency of using in the past and poor reception device (double T) because the defective in the design is very dissatisfactory with difference isolation, Insertion Loss and volume in 5% absolute bandwidth, all have certain limitation.
Summary of the invention
The invention provides a kind of in 5% absolute bandwidth, radio frequency that excellent performance and volume size are good and poor reception device.
The present invention adopts following technical scheme to solve its technical problem: the present invention is a kind of radio frequency and poor reception device, it comprise first and poor reception device, second and poor reception device, the 3rd and poor reception device and the 4th and the poor reception device, first and the poor reception device, second and the poor reception device, the 3rd and the poor reception device and the 4th and the poor reception device include with coupling piece and difference signal coupling window, input channel, difference passage and and passage; First and two input channels of poor reception device connect the first input end and second input respectively, second and two input channels of poor reception device connect the 3rd input and four-input terminal respectively, the 3rd and two input channels of poor reception device connect first and the poor reception device respectively, second and the poor passage of poor reception device, the 4th and two input channels of poor reception device connect first and the poor reception device respectively, second and the poor reception device and passage, the 3rd and the connecing and the trim port of poor reception device with passage, the 3rd and the poor passage of poor reception device connect load port, the the 4th and the connecing and access port of poor reception device, the 4th with passage and the poor passage of poor reception device connect the gun parallax port; With coupling piece and difference signal coupling window all be positioned at channel centerline on and coupling piece be located at the intersection of two input channels, the difference signal coupling window is located on the contacted conduit wall of input channel and difference passage.
Compare with prior art, the present invention has following advantage:
Because among the present invention and coupling piece and difference signal coupling window all be positioned at channel centerline on, be located at the intersection of two input channels with coupling piece, the difference signal coupling window is located on the contacted conduit wall of input channel and difference passage, such design is more reasonable. through the Ansoft simulation optimization, in 5% absolute bandwidth, V.S.W.R≤2, be better than 30dB with the difference isolation, Insertion Loss is less than 0.1dB, unbalance in phase is less than 1 °, from Fig. 5～Fig. 8 as seen, clearly should be more excellent with the performance that the differential receiver produces, when input channel and the difference signal coupling window near when being provided with the difference channel match block performance further excellent stable. and in this radio frequency and the differential receiver and channel, the difference channel outlet is in the same side, two-layer up and down relying on recently, institute takes up space very little, and volume size is more good, be particularly useful for airborne and missile-borne PD radar flat slot array antenna and difference pulse network, carry out the angle measurement of bidimensional pulse.
Description of drawings
Fig. 1 is the structural network schematic diagram of the embodiment of the invention.
Fig. 2 is that the embodiment of the invention is the part figure of radio frequency and poor reception device.
Fig. 3 is that the embodiment of the invention is another local figure of radio frequency and poor reception device.
Fig. 4 is that the embodiment of the invention is the A-A profile in radio frequency and the poor reception device.
Fig. 5 is a trim channel voltage standing-wave ratio of the present invention.
Fig. 6 is gun parallax of the present invention and trim isolation.
Fig. 7 is a gun parallax channel voltage standing wave of the present invention.
Fig. 8 is of the present invention and the channel voltage standing wave.
Embodiment
A kind of radio frequency and poor reception device, it comprises first and poor reception device 1, second and poor reception device 2, the 3rd and poor reception device 3 and the 4th and poor reception device 4, first and poor reception device 1, second and poor reception device 2, the 3rd and poor reception device 3 and the 4th and poor reception device 4 include with coupling piece 5 and difference signal coupling window 6, input channel 7,8, difference passage and and path 10; First and two input channels of poor reception device 1 connect the first input end 11 and second input 12 respectively, second and two input channels of poor reception device 2 connect the 3rd input 13 and four-input terminal 14 respectively, the 3rd and two input channels of poor reception device 3 connect first and poor reception device 1 respectively, second and the poor passage 91 of poor reception device 2,92, the 4th and two input channels of poor reception device 4 connect first and the poor reception device respectively, second and the poor reception device with passage 15,16, the 3rd and poor reception device 3 connect trim port one 7 with passage, the 3rd and the poor passage 93 of poor reception device connect load port 18, the 4th and the poor passage 94 that connects with access port 19, the four and poor reception device with passage of poor reception device 4 connect gun parallax port 20; With coupling piece 5 and difference signal coupling window 6 all be positioned at channel centerline on and coupling piece be located at the intersection of two input channels, the difference signal coupling window is located on the contacted conduit wall of input channel and difference passage.Input channel and the difference signal coupling window near be provided with difference channel match block 21.Input channel 7,8, the difference passage 9 and and path 10 be waveguide.
Claims (3)
1. radio frequency and poor reception device, it comprises first and poor reception device (1), second and poor reception device (2), the 3rd and poor reception device (3) and the 4th and poor reception device (4), first and poor reception device (1), second and poor reception device (2), the 3rd and poor reception device (3) and the 4th and poor reception device (4) includes and coupling piece (5) and difference signal coupling window (6), input channel (7,8), difference passage and and passage (10); First and two input channels of poor reception device (1) connect first input end (11) and second input (12) respectively, second and two input channels of poor reception device (2) connect the 3rd input (13) and four-input terminal (14) respectively, the 3rd and two input channels of poor reception device (3) connect first and the poor passage (91) of poor reception device (1) respectively, second and the poor passage (92) of poor reception device (2), the 4th and two input channels of poor reception device (4) connect respectively first and the poor reception device and passage (15), second and the poor reception device and passage (16), the 3rd and poor reception device (3) connect trim port (17) with passage, the 3rd and the poor passage (93) of poor reception device connect load port (18), the the 4th and the connecing with passage and access port (19) of poor reception device (4), the 4th and the poor passage (94) of poor reception device connect gun parallax port (20); It is characterized in that: and coupling piece (5) and difference signal coupling window (6) all be positioned at channel centerline on and coupling piece be located at the intersection of two input channels, the difference signal coupling window is located on the contacted conduit wall of input channel and difference passage.
2. radio frequency according to claim 1 and poor reception device is characterized in that: be positioned at difference signal coupling window on the input channel near be provided with difference channel match block (21).
3. radio frequency according to claim 1 and poor reception device is characterized in that: input channel (7,8), the difference passage (9) and and passage (10) be waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610039717A CN1835285B (en) | 2006-04-21 | 2006-04-21 | RF sum-difference receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610039717A CN1835285B (en) | 2006-04-21 | 2006-04-21 | RF sum-difference receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1835285A CN1835285A (en) | 2006-09-20 |
| CN1835285B true CN1835285B (en) | 2010-05-12 |
Family
ID=37002950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610039717A Expired - Fee Related CN1835285B (en) | 2006-04-21 | 2006-04-21 | RF sum-difference receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1835285B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3790941A (en) * | 1971-03-31 | 1974-02-05 | Secr Defence | Antenna tracking systems |
| CN2032763U (en) * | 1987-11-28 | 1989-02-15 | 西北电讯工程学院 | Millimeter wave polarizing separator |
| CN2073632U (en) * | 1990-03-29 | 1991-03-20 | 机械电子工业部石家庄第五十四研究所 | Network device of antenna feeding source |
| CN2932829Y (en) * | 2006-04-21 | 2007-08-08 | 南京璇星科技发展有限公司 | Radio frequency difference receiver |
-
2006
- 2006-04-21 CN CN200610039717A patent/CN1835285B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3790941A (en) * | 1971-03-31 | 1974-02-05 | Secr Defence | Antenna tracking systems |
| CN2032763U (en) * | 1987-11-28 | 1989-02-15 | 西北电讯工程学院 | Millimeter wave polarizing separator |
| CN2073632U (en) * | 1990-03-29 | 1991-03-20 | 机械电子工业部石家庄第五十四研究所 | Network device of antenna feeding source |
| CN2932829Y (en) * | 2006-04-21 | 2007-08-08 | 南京璇星科技发展有限公司 | Radio frequency difference receiver |
Non-Patent Citations (1)
| Title |
|---|
| JP昭59-23902A 1984.02.07 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1835285A (en) | 2006-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10886634B2 (en) | Filter feeding network and base station antenna | |
| CN107394395B (en) | Dual-polarized horn antenna based on plane orthogonal mode coupler | |
| CN104852150A (en) | Dual-frequency/dual-polarized base station antenna with parallel double line feed | |
| CN104079307A (en) | Electronic device capable of eliminating interference | |
| CN201663237U (en) | Antenna and mobile terminal | |
| CN105006635B (en) | The opening ridge ripple waveguide array antennas of integrated interior correction channel | |
| CN103700947B (en) | Substrate integration wave-guide circular polarized antenna | |
| CN106252872A (en) | Same polarization micro-strip duplexed antenna array | |
| CN107508040A (en) | Recall array in a kind of polarized rotation direction | |
| CN202268462U (en) | TD smart antenna and built-in micro-strip combiner thereof | |
| CN203340293U (en) | Low-power multi-antenna tunnel distribution coverage system | |
| KR100982968B1 (en) | Ortho-mode transducer for transmitting and receiving circular polarization in high frequency band | |
| CN2932829Y (en) | Radio frequency difference receiver | |
| CN1835285B (en) | RF sum-difference receiver | |
| CN106443591B (en) | A kind of multi-functional submatrix beam-forming network of phased-array radar | |
| CN111786127A (en) | Phased array circuit with changeable polarization | |
| CN101916913A (en) | Ultra-wide band microstrip patch antenna | |
| CN201725873U (en) | UWB microstrip patch antenna | |
| CN107394417A (en) | Ridge waveguide series feed network | |
| CN114709627B (en) | Multi-band configurable receiving antenna | |
| CN116111312A (en) | Broadband double-directional coupler based on main and auxiliary different ridge waveguides and vector network analyzer | |
| CN115764261A (en) | Element feeding device, communication antenna and base station antenna | |
| CN101807951A (en) | Communication distance extender of wireless sensor network and extension method | |
| CN211017408U (en) | Double-circular polarized antenna | |
| CN205141137U (en) | Integrated microstrip antenna of millimeter wave |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20170421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |