CN203492018U - High-power C band scatter communication high-frequency device - Google Patents
High-power C band scatter communication high-frequency device Download PDFInfo
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- CN203492018U CN203492018U CN201320617028.0U CN201320617028U CN203492018U CN 203492018 U CN203492018 U CN 203492018U CN 201320617028 U CN201320617028 U CN 201320617028U CN 203492018 U CN203492018 U CN 203492018U
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Abstract
The utility model discloses a high-power C band scatter communication high-frequency device comprising a frequency converter, a sending switch filter, a receiving switch filter, a power amplifier, a waveguide switch, a low-noise amplifier and a diplexer; an intermediate-frequency input signal is up-converted to a radio-frequency signal by the frequency converter, the radio-frequency signal is subjected to a frequency selection process by the sending switch filter and then sent to the power amplifier, power amplification is carried out by the power amplifier for the radio-frequency signal after frequency selection, and the amplified signal is sent to the diplexer by the waveguide switch, feed in an antenna and transmitted by the antenna; and a radio-frequency small signal received by the antenna is subjected to a frequency selection process by the diplexer, sent to the low-noise amplifier for amplification, filtered by the receiving switch filter, and then sent to the frequency converter and down-converted to an intermediate-frequency signal, and the intermediate-frequency signal is sent to a demodulator after being amplified to an appropriate level. The high-power C band scatter communication high-frequency device operates in C band with transmitting power larger than 50dBm, standard waveguide connection related devices are used to achieve about 1dB reduction from a transmitting channel power amplifier outlet to an equipment outlet, a receiving channel noise factor is less than 1.5dB, and A and B type full-band operation is achieved by switching of the waveguide switch.
Description
Technical field
The utility model relates to a kind of high-power C-band scatter communication high-frequency apparatus in the communications field, is specially adapted to require the scatter communication system of large capacity, distant signal transmission.
Background technology
Scatter communication high-frequency apparatus extensive use on C-band at present.Along with the development in epoch, more and more higher to the requirement of high-frequency apparatus, such as volume is little, power is high, noise factor is low etc.If it is little that high-frequency apparatus inside adopts coaxial duplexer, coaxial switch to adopt coaxial cable connection to realize volume, but receive path noise factor is larger, approximately 3dB left and right, and power exports from power amplifier delivery outlet to equipment and will reduce about 3dB.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of transmitting of optimization, the high-power C-band scatter communication high-frequency apparatus of the full frequency band work of receive path performance index.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A high-power C-band scatter communication high-frequency apparatus, comprises frequency converter, sends out switch filter, receives switch filter, power amplifier, waveguide switch, LNA and duplexer; It is characterized in that: first intermediate frequency input signal upconverts to radiofrequency signal through frequency converter, radiofrequency signal is sent into power amplifier after sending out switch filter frequency-selecting, the radiofrequency signal of power amplifier after to frequency-selecting carried out after power amplification, the high-power signal of power amplifier output is sent into duplexer through waveguide switch, duplexer, by high-power signal feed antenna, is gone out by antenna transmission; From antenna reception to RF small signals first carry out frequency-selecting through duplexer, then enter LNA and carry out low noise amplification, then carry out, after filtering, entering the down-conversion of frequency converter through receiving switch filter, frequency conversion is intermediate-freuqncy signal, and delivers to demodulator after being amplified to suitable level.
Wherein, described duplexer is comprised of low section of filter, high section filter and circulator; The output port of power amplifier connects 1 port of waveguide switch, 2 ports of waveguide switch and 4 ports are connected respectively the input port of low section of filter and high section filter, low section of filter and the output port of high section filter are respectively connected an input port of circulator, and the output port of circulator connects antenna; 3 ports of waveguide switch connect the input port of LNA, and the SMA output port of LNA connects the input port of receiving switch filter.
Wherein, described power amplifier is two-port network, and its input port is SMA interface, and upper strata and the side of power amplifier are provided with heat abstractor.
Wherein, four ports of described waveguide switch are standard waveguide mouth, and the output port of power amplifier being connected with four ports of waveguide switch is respectively, the input port of low section of filter, the high section input port of filter and the input port of LNA are standard waveguide mouth.
Wherein, the output port of described LNA is SMA interface.
The beneficial effect that adopts technique scheme to produce is:
The utility model is operated in C-band, and transmitting power is greater than 50dBm; The utility model adopts standard waveguide join dependency device, has realized transmission channel power amplifier delivery outlet and has reduced 1dB left and right to equipment outlet, and receive path noise factor is less than 1.5dB, realizes the function of A, the work of B type full frequency band by the switching of waveguide switch.
Accompanying drawing explanation
Fig. 1 is the utility model signal flow graph;
Fig. 2 is diplexer structure schematic diagram of the present utility model;
Fig. 3 is frequency changer schematic diagram of the present utility model;
In figure: 1, waveguide switch, 2, high section filter, 3, low section of filter, 4, circulator.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the utility model is a kind of high-power C-band scatter communication high-frequency apparatus, comprises frequency converter, sends out switch filter, receives switch filter, power amplifier, waveguide switch, LNA and duplexer; First intermediate frequency input signal upconverts to radiofrequency signal through frequency converter, radiofrequency signal is sent into power amplifier after sending out switch filter frequency-selecting, the radiofrequency signal of power amplifier after to frequency-selecting carried out after power amplification, the high-power signal of power amplifier output is sent into duplexer through waveguide switch, duplexer, by high-power signal feed antenna, is gone out by antenna transmission; From antenna reception to RF small signals first carry out frequency-selecting through duplexer, then enter LNA and carry out low noise amplification, then carry out, after filtering, entering the down-conversion of frequency converter through receiving switch filter, frequency conversion is intermediate-freuqncy signal, and delivers to demodulator after being amplified to suitable level.
Above-mentioned switch filter and receive the height passage that switch filter is same switch filter, the input and output of switch filter all adopt SMA interface ,+12V power supply.Above-mentioned duplexer is high-isolation waveguide device, low section of filter, high section filter and circulator, consists of; Power amplifier is two-port network, employing+10V power supply, and about 50A, power output is greatly about 51dBm; Upper strata and the side of power amplifier are provided with heat abstractor; The input port of power amplifier is SMA interface, the output port of power amplifier connects 1 port of waveguide switch, 2 ports of waveguide switch and 4 ports are connected respectively the input port of low section of filter and high section filter, low section of filter and the output port of high section filter are respectively connected an input port of circulator, and the output port of circulator connects antenna; 3 ports of waveguide switch connect the input port of LNA, and the output port of LNA connects the input port of receiving switch filter.Four ports of waveguide switch are standard waveguide mouth, and the output port of power amplifier being connected with four ports of waveguide switch is respectively, the input port of low section of filter, the high section input port of filter and the input port of LNA are standard waveguide mouth; The output port of LNA is SMA interface, employing+12V power supply.
Be illustrated in figure 2 the structural representation of duplexer.Duplexer is comprised of high section filter 2, low section of filter 3 and circulator 4, and the effect of waveguide switch 1 has been the switching of A, B type.
Be illustrated in figure 3 the structural representation of frequency converter, frequency converter is divided into three parts from function: up-conversion, down-conversion and synthesizer.The function of up-conversion is that intermediate-freuqncy signal is converted to radiofrequency signal, and the function of down-conversion is that radiofrequency signal is converted to intermediate-freuqncy signal, the down-conversion about 40dB left and right of gaining, and synthesizer provides local oscillator for Up/Down Conversion.The input and output port of frequency converter all adopts SMA.
The utility model is standard 6U cabinet, takes rear outlet structure, and electric connector is installed in the rear portion of equipment.The front panel of equipment is provided with monitoring unit, by operation keyboard, can carry out running parameter setting to equipment.Grooved guide rail is equipped with in cabinet both sides, by grooved guide rails assembling, in communication cabinet, by the captive screw on front panel, is fixed on communication cabinet.Power supply provides required direct current for each module of high-frequency apparatus inside.
The utility model, within the scope of limited 6U chassis space, has been realized transmitting power and has been greater than 50dBm continuous wave, and receive path noise factor is less than 1.5dB; Waveguide switch is four port devices, utilizes the function of its dpdt double-pole double-throw (DPDT), by monitored instruction, changes transmitting, receive frequency, and waveguide switch automatically switches according to set of frequency, has realized the function of A, B type full frequency band work.
Claims (5)
1. high-power C-band scatter communication high-frequency apparatus, comprises frequency converter, sends out switch filter, receives switch filter, power amplifier, waveguide switch, LNA and duplexer; It is characterized in that: first intermediate frequency input signal upconverts to radiofrequency signal through frequency converter, radiofrequency signal is sent into power amplifier after sending out switch filter frequency-selecting, the radiofrequency signal of power amplifier after to frequency-selecting carried out after power amplification, the high-power signal of power amplifier output is sent into duplexer through waveguide switch, duplexer, by high-power signal feed antenna, is gone out by antenna transmission; From antenna reception to RF small signals first carry out frequency-selecting through duplexer, then enter LNA and carry out low noise amplification, then carry out, after filtering, entering the down-conversion of frequency converter through receiving switch filter, frequency conversion is intermediate-freuqncy signal, and delivers to demodulator after being amplified to suitable level.
2. high-power C-band scatter communication high-frequency apparatus according to claim 1, is characterized in that: described duplexer is comprised of low section of filter, high section filter and circulator; The output port of power amplifier connects 1 port of waveguide switch, 2 ports of waveguide switch and 4 ports are connected respectively the input port of low section of filter and high section filter, low section of filter and the output port of high section filter are respectively connected an input port of circulator, and the output port of circulator connects antenna; 3 ports of waveguide switch connect the input port of LNA, and the SMA output port of LNA connects the input port of receiving switch filter.
3. high-power C-band scatter communication high-frequency apparatus according to claim 2, is characterized in that: described power amplifier is two-port network, and its input port is SMA interface, and upper strata and the side of power amplifier are provided with heat abstractor.
4. high-power C-band scatter communication high-frequency apparatus according to claim 2, it is characterized in that: four ports of described waveguide switch are standard waveguide mouth, and the output port of power amplifier being connected with four ports of waveguide switch is respectively, the input port of low section of filter, the high section input port of filter and the input port of LNA are standard waveguide mouth.
5. high-power C-band scatter communication high-frequency apparatus according to claim 2, is characterized in that: the output port of described LNA is SMA interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617028.0U CN203492018U (en) | 2013-10-08 | 2013-10-08 | High-power C band scatter communication high-frequency device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617028.0U CN203492018U (en) | 2013-10-08 | 2013-10-08 | High-power C band scatter communication high-frequency device |
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| Publication Number | Publication Date |
|---|---|
| CN203492018U true CN203492018U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320617028.0U Expired - Fee Related CN203492018U (en) | 2013-10-08 | 2013-10-08 | High-power C band scatter communication high-frequency device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203805A (en) * | 2015-07-17 | 2015-12-30 | 上海卫星工程研究所 | Wired transmission support equipment for data transmitting radio-frequency signals in vacuum thermal environment |
| CN106788573A (en) * | 2017-04-01 | 2017-05-31 | 中国电子科技集团公司第五十四研究所 | A kind of C-band high-power radio-frequency receiving-transmitting equipment |
| CN106961285A (en) * | 2017-03-23 | 2017-07-18 | 中国电子科技集团公司第五十四研究所 | A kind of scatter communication high-frequency apparatus of full frequency band work |
| CN109361406A (en) * | 2018-12-18 | 2019-02-19 | 中国电子科技集团公司第五十四研究所 | A kind of FDD full frequency band transceiver |
-
2013
- 2013-10-08 CN CN201320617028.0U patent/CN203492018U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203805A (en) * | 2015-07-17 | 2015-12-30 | 上海卫星工程研究所 | Wired transmission support equipment for data transmitting radio-frequency signals in vacuum thermal environment |
| CN106961285A (en) * | 2017-03-23 | 2017-07-18 | 中国电子科技集团公司第五十四研究所 | A kind of scatter communication high-frequency apparatus of full frequency band work |
| CN106961285B (en) * | 2017-03-23 | 2019-03-29 | 中国电子科技集团公司第五十四研究所 | A kind of scatter communication high-frequency apparatus of full frequency band work |
| CN106788573A (en) * | 2017-04-01 | 2017-05-31 | 中国电子科技集团公司第五十四研究所 | A kind of C-band high-power radio-frequency receiving-transmitting equipment |
| CN106788573B (en) * | 2017-04-01 | 2018-12-25 | 中国电子科技集团公司第五十四研究所 | A kind of C-band high-power radio-frequency receiving-transmitting equipment |
| CN109361406A (en) * | 2018-12-18 | 2019-02-19 | 中国电子科技集团公司第五十四研究所 | A kind of FDD full frequency band transceiver |
| CN109361406B (en) * | 2018-12-18 | 2024-03-15 | 中国电子科技集团公司第五十四研究所 | FDD full-frequency band transceiver |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20211008 |