CN105403898A - Radio frequency receiving channel circuit for realizing anti-interference antenna of satellite navigation and method - Google Patents
Radio frequency receiving channel circuit for realizing anti-interference antenna of satellite navigation and method Download PDFInfo
- Publication number
- CN105403898A CN105403898A CN201510875380.8A CN201510875380A CN105403898A CN 105403898 A CN105403898 A CN 105403898A CN 201510875380 A CN201510875380 A CN 201510875380A CN 105403898 A CN105403898 A CN 105403898A
- Authority
- CN
- China
- Prior art keywords
- electric capacity
- pin
- circuit
- ground connection
- amplifier
- 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.)
- Granted
Links
Classifications
-
- 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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/21—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Amplifiers (AREA)
Abstract
The invention relates to a radio frequency receiving channel circuit for realizing an anti-interference antenna of satellite navigation and a method. The radio frequency receiving channel circuit is integrated with functions of low-noise amplification, frequency mixing, and filtering. A radio frequency signal enters and passes through a low-noise amplifier filtering circuit; an amplifier N1 carries out low-noise amplifier and a filter Z1 carries out radio frequency filtering, and then a filter Z1 carries out radio frequency filtering, an amplifier 3 carries out low-noise amplification, and a filter Z2 carries out radio frequency filtering; the processed signal enters a down conversion circuit, a mixer carries out down conversion to generate an intermediate-frequency signal; a filter formed by an inductor L3, a capacitor C24, and an inductor L4 carries out filtering; the filtered signal enters an intermediate-frequency amplification and filtering circuit, an amplifier N6 carries out intermediate-frequency amplification, a filter N7 carries out intermediate-frequency filtering,, and then the signal enters a digital anti-interference circuit for processing. 1-dB compression points with sufficient sizes of amplifiers at all stages are selected, so that the high-interference signal with the signal-to-interference ratio of 70dB can be amplified linearly; and thus the signal can enter a circuit at a next stage effectively without any distortion.
Description
Technical field
The present invention relates to a kind of radio frequency reception channel circuit realizing anti-interference antenna of satellite navigation.
Background technology
Radio frequency reception channel circuit is a requisite part in anti-interference antenna of satellite navigation, and index request is high, should meet the requirement of sensitivity, adapts to jamproof demand again.Original radio frequency reception channel circuit receives signals scope is little, maximumly can receive the undesired signal that jamming-to-signal ratio is 65dB, and complex structure, and components and parts are various, debugging trouble, and noise figure is greater than 2, and the noise of introducing is comparatively large, affects the signal quality of complete machine.
Summary of the invention
In view of the deficiency that prior art exists, the invention provides radio frequency reception channel circuit and method that a kind of structure simply realizes anti-interference antenna of satellite navigation.This circuit can receive the weak satellite signal of-133dBm, also can receive the large undesired signal that jamming-to-signal ratio is 70dB, makes signal effectively and enter into next stage circuit without distortion.
The present invention for achieving the above object, the technical scheme taked is: a kind of radio frequency reception channel circuit realizing anti-interference antenna of satellite navigation, it is characterized in that: comprise LNA filtering circuit, lower frequency changer circuit, intermediate frequency filtering and amplifying circuit, power circuit, described LNA filtering circuit is connected with intermediate frequency filtering and amplifying circuit by lower frequency changer circuit, and power circuit is connected with LNA filtering circuit, lower frequency changer circuit, intermediate frequency filtering and amplifying circuit respectively;
Power circuit connects: 1 pin of voltage stabilizer N2 meets electric capacity C10, electric capacity C11, electric capacity C12, one end of electric capacity C13 and 3 pin of voltage stabilizer N2 and external power source+5V, the other end ground connection of electric capacity C10, electric capacity C11, electric capacity C12, electric capacity C13, the 2 pin ground connection of voltage stabilizer N2,4 pin connect one end of electric capacity C9, the other end of electric capacity C9 connects one end of 5 pin of voltage stabilizer N2, electric capacity C7, electric capacity C8 respectively, the other end ground connection of electric capacity C7, electric capacity C8;
1 pin of voltage stabilizer N5 meets electric capacity C19, electric capacity C20, electric capacity C21, one end of electric capacity C22 and 3 pin of voltage stabilizer N5 and external power source+5V, the other end ground connection of electric capacity C19, electric capacity C20, electric capacity C21, electric capacity C22, the 2 pin ground connection of voltage stabilizer N5,4 pin connect one end of electric capacity C18, the other end of electric capacity C18 connects one end of 5 pin of voltage stabilizer N5, electric capacity C16, electric capacity C17 respectively, the other end ground connection of electric capacity C16, electric capacity C17;
LNA filtering circuit connects: 1 pin of amplifier N1 is as signal input part, and 2 pin connect one end of electric capacity C1 and 5 pin of power circuit voltage stabilizer N2, the other end ground connection of electric capacity C1, and 3 pin of amplifier N1 connect 2 pin of wave filter Z1, the 4 pin ground connection of N1,
1 pin of wave filter Z1,3 pin, 4 pin, 6 pin ground connection, 5 pin connect 3 pin of amplifier N3 by electric capacity C2,1 pin of amplifier N3,4 pin ground connection, 2 pin connect one end of inductance L 1, electric capacity C3 respectively, the other end of inductance L 1 meets electric capacity C4, electric capacity C5, electric capacity C6 one end and power input+5V respectively, electric capacity C4, electric capacity C5, electric capacity C6 other end ground connection
2 pin of another termination wave filter Z2 of electric capacity C3,1 pin of wave filter Z2,3 pin, 4 pin, 6 pin ground connection, 5 pin are connected with interface T1;
Lower frequency changer circuit connects: 1 pin of frequency mixer N4 meets the interface T1 of LNA filtering circuit by electric capacity C14,2 pin, 4 pin, 5 pin ground connection, 3 pin connect outside source by electric capacity C15,6 pin connect electric capacity C25, electric capacity C26, one end of electric capacity C27 and 5 pin of power circuit voltage stabilizer N5 by inductance L 2, the other end ground connection of electric capacity C25, electric capacity C26, electric capacity C27
8 pin of frequency mixer N4 connect one end of electric capacity C24 and inductance L 4 by inductance L 3, electric capacity C24 other end ground connection, one end of another termination capacitor C23 of inductance L 4;
Intermediate frequency filtering and amplifying circuit connects: 1 pin of amplifier N6 connects the other end of lower frequency changer circuit electric capacity C23, 2 pin, 4 pin ground connection, 3 pin connect inductance L 5, one end of electric capacity C32, the other end of inductance L 5 meets electric capacity C28 respectively, electric capacity C29, electric capacity C30, one end of electric capacity C31 and resistance R1, another termination power input+5V of resistance R1, electric capacity C28, electric capacity C29, electric capacity C30, the other end ground connection of electric capacity C31, the other end connecting resistance R2 of electric capacity C32 and one end of resistance R3, the other end ground connection of resistance R2, the other end connecting resistance R4 of resistance R3 and one end of electric capacity C33, the other end ground connection of resistance R4, 1 pin of another termination wave filter N7 of electric capacity C33, 3 pin of wave filter N7, 4 pin, 5 pin, 6 pin, 7 pin, 8 pin, 9 pin, 10 pin, 11 pin, 12 pin ground connection, 2 pin connect signal output part by electric capacity C34, amplifier N1 model is WHM14-3020BE, the model of wave filter Z1, Z2 is SF2186E, and amplifier N3 model is PSA4-5043+, and frequency mixer N4 model is ADL5350ACPZ-R7, amplifier N6 model is AG303-86, and wave filter N7 model is WPSWB46M52-20.
A kind of method realizing the radio frequency reception channel circuit of anti-interference antenna of satellite navigation, it is characterized in that: implementation method is as follows, the amplification of this radio frequency reception channel circuit integrated low-noise, mixing, filter function, radiofrequency signal enters rear first through LNA filtering circuit, low noise amplification is carried out by amplifier N1, the noise figure of amplifier N1 is 0.5dB, rf filtering is carried out again by wave filter Z1, low noise amplification is carried out again by amplifier N3, the noise figure of amplifier N3 is 0.75dB, then carries out rf filtering by wave filter Z2; Because system noise factor determines primarily of circuit front-end, the noise of this radio frequency reception channel circuit introducing is very little as seen, has all added wave filter after every first stage amplifier, ensures filter effect; Then signal enters lower frequency changer circuit, first down-convert to intermediate-freuqncy signal by frequency mixer N4, wave filter through being made up of inductance L 3, electric capacity C24 and inductance L 4 carries out filtering, then signal enters intermediate frequency filtering and amplifying circuit, intermediate frequency amplification is carried out again by amplifier N6, carry out intermediate frequency filtering by wave filter N7, then send into digital anti-jamming circuit process; It is enough large that the 1dB compression point of amplifier at different levels is selected, and makes jamming-to-signal ratio be the large undesired signal energy Linear Amplifer of 70dB, so that satellite-signal is undistorted.
Feature of the present invention is: solve the radio frequency reception channel circuit be applied in anti-interference antenna of satellite navigation, can meet the requirement of sensitivity, can adapt to jamproof demand again.This radio frequency reception channel circuit has the ability that can receive from the weak satellite signal of-133dBm to jamming-to-signal ratio the large undesired signal being 70dB, low noise amplification, filtering, Frequency mixing processing are carried out to satellite-signal and undesired signal, then signal is sent into digital anti-jamming circuit.Circuit components is less, and debugging is simple, and noise figure is less than or equal to 1.5, and the noise of introducing is very little.
Accompanying drawing explanation
Fig. 1 is that circuit of the present invention connects block diagram;
Fig. 2 is power circuit diagram of the present invention;
Fig. 3 is LNA filtering circuit figure of the present invention;
Fig. 4 is lower frequency changer circuit figure of the present invention;
Fig. 5 is intermediate frequency filtering and amplifying circuit figure of the present invention.
Embodiment
As shown in Figures 1 to 5, realize the radio frequency reception channel circuit of anti-interference antenna of satellite navigation, comprise LNA filtering circuit, lower frequency changer circuit, intermediate frequency filtering and amplifying circuit, power circuit, LNA filtering circuit is connected with intermediate frequency filtering and amplifying circuit by lower frequency changer circuit, and power circuit is connected with LNA filtering circuit, lower frequency changer circuit, intermediate frequency filtering and amplifying circuit respectively.
Power circuit connects: 1 pin of voltage stabilizer N2 meets electric capacity C10, electric capacity C11, electric capacity C12, one end of electric capacity C13 and 3 pin of voltage stabilizer N2 and external power source+5V, the other end ground connection of electric capacity C10, electric capacity C11, electric capacity C12, electric capacity C13, the 2 pin ground connection of voltage stabilizer N2,4 pin connect one end of electric capacity C9, the other end of electric capacity C9 connects one end of 5 pin of voltage stabilizer N2, electric capacity C7, electric capacity C8 respectively, the other end ground connection of electric capacity C7, electric capacity C8.
1 pin of voltage stabilizer N5 meets electric capacity C19, electric capacity C20, electric capacity C21, one end of electric capacity C22 and 3 pin of voltage stabilizer N5 and external power source+5V, the other end ground connection of electric capacity C19, electric capacity C20, electric capacity C21, electric capacity C22, the 2 pin ground connection of voltage stabilizer N5,4 pin connect one end of electric capacity C18, the other end of electric capacity C18 connects one end of 5 pin of voltage stabilizer N5, electric capacity C16, electric capacity C17 respectively, the other end ground connection of electric capacity C16, electric capacity C17.
LNA filtering circuit connects: 1 pin of amplifier N1 is as signal input part, 2 pin connect one end of electric capacity C1 and 5 pin of power circuit voltage stabilizer N2, the other end ground connection of electric capacity C1, 3 pin of amplifier N1 connect 2 pin of wave filter Z1, the 4 pin ground connection of N1, 1 pin of wave filter Z1, 3 pin, 4 pin, 6 pin ground connection, 5 pin connect 3 pin of amplifier N3 by electric capacity C2, 1 pin of amplifier N3, 4 pin ground connection, 2 pin connect inductance L 1 respectively, one end of electric capacity C3, the other end of inductance L 1 meets electric capacity C4 respectively, electric capacity C5, electric capacity C6 one end and power input+5V, electric capacity C4, electric capacity C5, electric capacity C6 other end ground connection, 2 pin of another termination wave filter Z2 of electric capacity C3, 1 pin of wave filter Z2, 3 pin, 4 pin, 6 pin ground connection, 5 pin are connected with interface T1.
Lower frequency changer circuit connects: 1 pin of frequency mixer N4 meets the interface T1 of LNA filtering circuit by electric capacity C14,2 pin, 4 pin, 5 pin ground connection, 3 pin connect outside source by electric capacity C15,6 pin connect electric capacity C25, electric capacity C26, one end of electric capacity C27 and 5 pin of power circuit voltage stabilizer N5 by inductance L 2, the other end ground connection of electric capacity C25, electric capacity C26, electric capacity C27
8 pin of frequency mixer N4 connect one end of electric capacity C24 and inductance L 4 by inductance L 3, electric capacity C24 other end ground connection, one end of another termination capacitor C23 of inductance L 4.
Intermediate frequency filtering and amplifying circuit connects: 1 pin of amplifier N6 connects the other end of lower frequency changer circuit electric capacity C23, 2 pin, 4 pin ground connection, 3 pin connect inductance L 5, one end of electric capacity C32, the other end of inductance L 5 meets electric capacity C28 respectively, electric capacity C29, electric capacity C30, one end of electric capacity C31 and resistance R1, another termination power input+5V of resistance R1, electric capacity C28, electric capacity C29, electric capacity C30, the other end ground connection of electric capacity C31, the other end connecting resistance R2 of electric capacity C32 and one end of resistance R3, the other end ground connection of resistance R2, the other end connecting resistance R4 of resistance R3 and one end of electric capacity C33, the other end ground connection of resistance R4, 1 pin of another termination wave filter N7 of electric capacity C33, 3 pin of wave filter N7, 4 pin, 5 pin, 6 pin, 7 pin, 8 pin, 9 pin, 10 pin, 11 pin, 12 pin ground connection, 2 pin connect signal output part by electric capacity C34, amplifier N1 model is WHM14-3020BE, the model of wave filter Z1, Z2 is SF2186E, amplifier N3 model is PSA4-5043+, frequency mixer N4 model is ADL5350ACPZ-R7, amplifier N6 model is AG303-86, wave filter N7 model is WPSWB46M52-20, is a kind of LC wave filter by inductance and capacitor combination, is produced by He Xun Electronics Co., Ltd. of Shenzhen.
A kind of method realizing the radio frequency reception channel circuit of anti-interference antenna of satellite navigation, implementation method is as follows: the amplification of this radio frequency reception channel circuit integrated low-noise, mixing, filter function, radiofrequency signal enters rear first through LNA filtering circuit, low noise amplification is carried out by amplifier N1, the noise figure of amplifier N1 is 0.5dB, rf filtering is carried out again by wave filter Z1, low noise amplification is carried out again by amplifier N3, the noise figure of amplifier N3 is 0.75dB, then carries out rf filtering by wave filter Z2; Because system noise factor determines primarily of circuit front-end, the noise of this radio frequency reception channel circuit introducing is very little as seen, has all added wave filter after every first stage amplifier, ensures filter effect; Then signal enters lower frequency changer circuit, first down-convert to intermediate-freuqncy signal by frequency mixer N4, wave filter through being made up of inductance L 3, electric capacity C24 and inductance L 4 carries out filtering, then signal enters intermediate frequency filtering and amplifying circuit, intermediate frequency amplification is carried out again by amplifier N6, carry out intermediate frequency filtering by wave filter N7, then send into digital anti-jamming circuit process; It is enough large that the 1dB compression point of amplifier at different levels is selected, and makes jamming-to-signal ratio be the large undesired signal energy Linear Amplifer of 70dB, so that satellite-signal is undistorted.
The technical indicator that this circuit reaches is as follows:
Conversion gain: 55dB ± 1dB
Channel width: 25MHz ± 5MHz
Noise figure :≤1.5
Export P1dB:>10dBm50MHz
Out-of-band rejection: f0 ± 23MHz place >=55dB
Third order intermodulation IMD3: >=55dBc passage exports the tone signal of two-8dBm.
Claims (2)
1. one kind realizes the radio frequency reception channel circuit of anti-interference antenna of satellite navigation, it is characterized in that: comprise LNA filtering circuit, lower frequency changer circuit, intermediate frequency filtering and amplifying circuit, power circuit, described LNA filtering circuit is connected with intermediate frequency filtering and amplifying circuit by lower frequency changer circuit, and power circuit is connected with LNA filtering circuit, lower frequency changer circuit, intermediate frequency filtering and amplifying circuit respectively;
Power circuit connects: 1 pin of voltage stabilizer N2 meets electric capacity C10, electric capacity C11, electric capacity C12, one end of electric capacity C13 and 3 pin of voltage stabilizer N2 and external power source+5V, the other end ground connection of electric capacity C10, electric capacity C11, electric capacity C12, electric capacity C13, the 2 pin ground connection of voltage stabilizer N2,4 pin connect one end of electric capacity C9, the other end of electric capacity C9 connects one end of 5 pin of voltage stabilizer N2, electric capacity C7, electric capacity C8 respectively, the other end ground connection of electric capacity C7, electric capacity C8;
1 pin of voltage stabilizer N5 meets electric capacity C19, electric capacity C20, electric capacity C21, one end of electric capacity C22 and 3 pin of voltage stabilizer N5 and external power source+5V, the other end ground connection of electric capacity C19, electric capacity C20, electric capacity C21, electric capacity C22, the 2 pin ground connection of voltage stabilizer N5,4 pin connect one end of electric capacity C18, the other end of electric capacity C18 connects one end of 5 pin of voltage stabilizer N5, electric capacity C16, electric capacity C17 respectively, the other end ground connection of electric capacity C16, electric capacity C17;
LNA filtering circuit connects: 1 pin of amplifier N1 is as signal input part, 2 pin connect one end of electric capacity C1 and 5 pin of power circuit voltage stabilizer N2, the other end ground connection of electric capacity C1, 3 pin of amplifier N1 connect 2 pin of wave filter Z1, the 4 pin ground connection of N1, 1 pin of wave filter Z1, 3 pin, 4 pin, 6 pin ground connection, 5 pin connect 3 pin of amplifier N3 by electric capacity C2, 1 pin of amplifier N3, 4 pin ground connection, 2 pin connect inductance L 1 respectively, one end of electric capacity C3, the other end of inductance L 1 meets electric capacity C4 respectively, electric capacity C5, electric capacity C6 one end and power input+5V, electric capacity C4, electric capacity C5, electric capacity C6 other end ground connection, 2 pin of another termination wave filter Z2 of electric capacity C3, 1 pin of wave filter Z2, 3 pin, 4 pin, 6 pin ground connection, 5 pin are connected with interface T1,
Lower frequency changer circuit connects: 1 pin of frequency mixer N4 meets the interface T1 of LNA filtering circuit by electric capacity C14,2 pin, 4 pin, 5 pin ground connection, 3 pin connect outside source by electric capacity C15,6 pin connect electric capacity C25, electric capacity C26, one end of electric capacity C27 and 5 pin of power circuit voltage stabilizer N5 by inductance L 2, the other end ground connection of electric capacity C25, electric capacity C26, electric capacity C27,8 pin of frequency mixer N4 connect one end of electric capacity C24 and inductance L 4 by inductance L 3, electric capacity C24 other end ground connection, one end of another termination capacitor C23 of inductance L 4;
Intermediate frequency filtering and amplifying circuit connects: 1 pin of amplifier N6 connects the other end of lower frequency changer circuit electric capacity C23, 2 pin, 4 pin ground connection, 3 pin connect inductance L 5, one end of electric capacity C32, the other end of inductance L 5 meets electric capacity C28 respectively, electric capacity C29, electric capacity C30, one end of electric capacity C31 and resistance R1, another termination power input+5V of resistance R1, electric capacity C28, electric capacity C29, electric capacity C30, the other end ground connection of electric capacity C31, the other end connecting resistance R2 of electric capacity C32 and one end of resistance R3, the other end ground connection of resistance R2, the other end connecting resistance R4 of resistance R3 and one end of electric capacity C33, the other end ground connection of resistance R4, 1 pin of another termination wave filter N7 of electric capacity C33, 3 pin of wave filter N7, 4 pin, 5 pin, 6 pin, 7 pin, 8 pin, 9 pin, 10 pin, 11 pin, 12 pin ground connection, 2 pin connect signal output part by electric capacity C34, amplifier N1 model is WHM14-3020BE, the model of wave filter Z1, Z2 is SF2186E, and amplifier N3 model is PSA4-5043+, and frequency mixer N4 model is ADL5350ACPZ-R7, amplifier N6 model is AG303-86, and wave filter N7 model is WPSWB46M52-20.
2. one kind realizes the method for the radio frequency reception channel circuit of anti-interference antenna of satellite navigation, it is characterized in that: implementation method is as follows, the amplification of this radio frequency reception channel circuit integrated low-noise, mixing, filter function, radiofrequency signal enters rear first through LNA filtering circuit, low noise amplification is carried out by amplifier N1, the noise figure of amplifier N1 is 0.5dB, rf filtering is carried out again by wave filter Z1, low noise amplification is carried out again by amplifier N3, the noise figure of amplifier N3 is 0.75dB, then carries out rf filtering by wave filter Z2; Because system noise factor determines primarily of circuit front-end, the noise of this radio frequency reception channel circuit introducing is very little as seen, has all added wave filter after every first stage amplifier, ensures filter effect; Then signal enters lower frequency changer circuit, first down-convert to intermediate-freuqncy signal by frequency mixer N4, wave filter through being made up of inductance L 3, electric capacity C24 and inductance L 4 carries out filtering, then signal enters intermediate frequency filtering and amplifying circuit, intermediate frequency amplification is carried out again by amplifier N6, carry out intermediate frequency filtering by wave filter N7, then send into digital anti-jamming circuit process; It is enough large that the 1dB compression point of amplifier at different levels is selected, and makes jamming-to-signal ratio be the large undesired signal energy Linear Amplifer of 70dB, so that satellite-signal is undistorted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875380.8A CN105403898B (en) | 2015-12-03 | 2015-12-03 | A kind of radio frequency reception channel circuit for realizing anti-interference antenna of satellite navigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875380.8A CN105403898B (en) | 2015-12-03 | 2015-12-03 | A kind of radio frequency reception channel circuit for realizing anti-interference antenna of satellite navigation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105403898A true CN105403898A (en) | 2016-03-16 |
| CN105403898B CN105403898B (en) | 2017-12-19 |
Family
ID=55469497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510875380.8A Active CN105403898B (en) | 2015-12-03 | 2015-12-03 | A kind of radio frequency reception channel circuit for realizing anti-interference antenna of satellite navigation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105403898B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124180A (en) * | 2017-06-22 | 2017-09-01 | 天津七六四通信导航技术有限公司 | A kind of improved frequency synthesis circuit implementation method for producing bifrequency signal |
| CN107181538A (en) * | 2017-06-22 | 2017-09-19 | 天津七六四通信导航技术有限公司 | A kind of intermediate-freuqncy signal power-sensing circuit and detection method |
| CN108254765A (en) * | 2018-04-02 | 2018-07-06 | 成都维星科技有限公司 | A kind of microminiature aviation type GPS anti-interference antennas |
| CN113541771A (en) * | 2021-07-15 | 2021-10-22 | 广西金网通电子科技有限公司 | Satellite down converter for receiving Beidou signal for households |
| CN113992224A (en) * | 2021-10-18 | 2022-01-28 | 安徽蓝讯通信技术有限公司 | Sub-6G-LTCC radio frequency front end microsystem module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101090290A (en) * | 2006-06-16 | 2007-12-19 | 郑州威科姆电子科技有限公司 | Plough time service integral receive antenna |
| CN101275995A (en) * | 2008-03-28 | 2008-10-01 | 西安华迅微电子有限公司 | Global position system GPS receiver radio frequency chip |
| CN102207549A (en) * | 2010-05-05 | 2011-10-05 | 北京泰豪联星技术有限公司 | Integrated anti-interference satellite navigation receiving system and anti-interference processing method thereof |
| CN203217080U (en) * | 2012-11-30 | 2013-09-25 | 北京振兴计量测试研究所 | Radio frequency front end of broadband satellite navigation receiver |
| CN205301589U (en) * | 2015-12-03 | 2016-06-08 | 天津七六四通信导航技术有限公司 | Realize satellite navigation anti -interference antenna's radio frequency receiver channel circuit |
-
2015
- 2015-12-03 CN CN201510875380.8A patent/CN105403898B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101090290A (en) * | 2006-06-16 | 2007-12-19 | 郑州威科姆电子科技有限公司 | Plough time service integral receive antenna |
| CN101275995A (en) * | 2008-03-28 | 2008-10-01 | 西安华迅微电子有限公司 | Global position system GPS receiver radio frequency chip |
| CN102207549A (en) * | 2010-05-05 | 2011-10-05 | 北京泰豪联星技术有限公司 | Integrated anti-interference satellite navigation receiving system and anti-interference processing method thereof |
| CN203217080U (en) * | 2012-11-30 | 2013-09-25 | 北京振兴计量测试研究所 | Radio frequency front end of broadband satellite navigation receiver |
| CN205301589U (en) * | 2015-12-03 | 2016-06-08 | 天津七六四通信导航技术有限公司 | Realize satellite navigation anti -interference antenna's radio frequency receiver channel circuit |
Non-Patent Citations (2)
| Title |
|---|
| 戴治洪: "北斗二号导航系统抗干扰接收机的研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 郇浩 等: "GPS/BD接收机抗干扰实验平台开发", 《实验技术与管理》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124180A (en) * | 2017-06-22 | 2017-09-01 | 天津七六四通信导航技术有限公司 | A kind of improved frequency synthesis circuit implementation method for producing bifrequency signal |
| CN107181538A (en) * | 2017-06-22 | 2017-09-19 | 天津七六四通信导航技术有限公司 | A kind of intermediate-freuqncy signal power-sensing circuit and detection method |
| CN107124180B (en) * | 2017-06-22 | 2023-12-29 | 天津七六四通信导航技术有限公司 | Improved frequency synthesis circuit implementation method for generating dual-frequency signals |
| CN108254765A (en) * | 2018-04-02 | 2018-07-06 | 成都维星科技有限公司 | A kind of microminiature aviation type GPS anti-interference antennas |
| CN113541771A (en) * | 2021-07-15 | 2021-10-22 | 广西金网通电子科技有限公司 | Satellite down converter for receiving Beidou signal for households |
| CN113541771B (en) * | 2021-07-15 | 2022-10-28 | 广西金网通电子科技有限公司 | Satellite down converter for receiving Beidou signal for households |
| CN113992224A (en) * | 2021-10-18 | 2022-01-28 | 安徽蓝讯通信技术有限公司 | Sub-6G-LTCC radio frequency front end microsystem module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105403898B (en) | 2017-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105403898A (en) | Radio frequency receiving channel circuit for realizing anti-interference antenna of satellite navigation and method | |
| CN109525203B (en) | Intermediate frequency amplifier based on GaAs pHEMT process | |
| CN109120289A (en) | A kind of short-wave radio frequency front end processing block and method | |
| CN105429656B (en) | The signal processing apparatus of demodulation front end is received based on short wave bandwidth | |
| CN102437859A (en) | Radio frequency front end anti-interference circuit of wireless communication receiver | |
| CN205356276U (en) | Broadband power amplification circuit | |
| CN107786221B (en) | Low-noise amplification circuit and receiver | |
| CN205301589U (en) | Realize satellite navigation anti -interference antenna's radio frequency receiver channel circuit | |
| CN204272098U (en) | Shortwave frequency conversion channel | |
| CN205029654U (en) | Processing apparatus is received to shortwave | |
| WO2017000732A1 (en) | Television signal processing device and television set top box | |
| CN205039805U (en) | End device before shortwave is received | |
| CN204376883U (en) | A kind of miniaturized receiver circuit | |
| CN216649672U (en) | 1.8GHz attenuation filtering and amplifying circuit | |
| CN116683874A (en) | Low noise amplifier | |
| CN210246725U (en) | C-band receiving channel assembly | |
| CN207096458U (en) | Realize the radio frequency reception channel circuit of anti-interference antenna of satellite navigation | |
| WO2006097033A1 (en) | A base-band signal demodulation preprocess system and method | |
| CN216056944U (en) | Low-noise amplifying circuit | |
| CN107167818A (en) | A kind of radio frequency reception channel circuit for realizing anti-interference antenna of satellite navigation | |
| CN110336573A (en) | A kind of X-band Larger Dynamic receiver | |
| CN203301464U (en) | Receiver front-end filter for improving rejection ratio index of image frequency and intermediate frequency | |
| CN203151651U (en) | Single-output Ku-waveband high-frequency head with four local oscillators | |
| CN211046872U (en) | Transmission line direct current bias structure capable of optimizing noise coefficient | |
| CN213461729U (en) | Superheterodyne cubic frequency conversion broadband receiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |