CN207382291U - A kind of S-band transmitter system for Radio-Frequency Wireless Communication - Google Patents
A kind of S-band transmitter system for Radio-Frequency Wireless Communication Download PDFInfo
- Publication number
- CN207382291U CN207382291U CN201721351072.6U CN201721351072U CN207382291U CN 207382291 U CN207382291 U CN 207382291U CN 201721351072 U CN201721351072 U CN 201721351072U CN 207382291 U CN207382291 U CN 207382291U
- Authority
- CN
- China
- Prior art keywords
- signal
- power
- frequency
- amplifier
- wireless communication
- 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.)
- Active
Links
Landscapes
- Transmitters (AREA)
Abstract
The utility model is related to a kind of S-band transmitter system for Radio-Frequency Wireless Communication, local oscillation circuit connection MCU and frequency mixer；IF AGC control circuit connects frequency mixer, exports the intermediate-freuqncy signal after filter and amplification；Frequency mixer is mixed, and obtains radio frequency low-power level signal；Frequency mixer is sequentially connected bandpass filter, fixed gain amplifier；Fixed gain amplifier is sequentially connected bandpass filtering and power amplifier, the output signal of fixed gain amplifier is filtered and power amplification；Power amplifier is divided into two-way by connecting power splitter after isolator, by the signal that isolator exports, respectively by being exported after low-pass filter.The utility model solves the problems, such as to have saved the manpower and materials time because the low antenna of signal frequency can not design short with transmission range in wireless communication, ensure that the reliability that information is transferred in wireless communication, realize remote wireless communication.
Description
Technical field
The utility model is related to wireless communication field, specifically a kind of S-band for Radio-Frequency Wireless Communication emits
Machine system.
Background technology
In Modern Communication System, Radio-Frequency Wireless Communication system is closely bound up with us, such as our daily mobile phone, bases
It stands, WIFI products, radar, bluetooth, national defence and aerospace etc., all be unable to do without radio frequency sending set system in these products and application
System, to the performance requirement higher of transmitter particularly in terms of radar, national defence and aerospace, and there is integrated level it is low,
The problems such as poor reliability.In the emission process of signal, since frequency is low, cause reception antenna length long, it is oversized；And
And transmission power is not big enough, and the transmission range of signal is caused not reach requirement, these are all Radio-Frequency Wireless Communication system transmitters
The faced difficulty of design and challenge.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of S-band transmitter system for Radio-Frequency Wireless Communication
System, solves the problems, such as that emission signal frequency is low, transmission power is not big enough, improves the reliability and transmission range of product.
The utility model technical solution used for the above purpose is：
A kind of S-band transmitter system for Radio-Frequency Wireless Communication, local oscillation circuit connect MCU, receive the frequency of MCU
Rate control signal；Local oscillation circuit connects frequency mixer, and local oscillation signal is exported to frequency mixer；
IF AGC control circuit connects frequency mixer, exports the intermediate-freuqncy signal after filter and amplification；
Frequency mixer receives the intermediate-freuqncy signal after filter and amplification and local oscillation signal is mixed, and obtains radio frequency small-power letter
Number；The output terminal of frequency mixer is sequentially connected the second bandpass filter, the first fixed gain amplifier, the 3rd bandpass filter and
Two fixed gain amplifiers filter out local oscillator leakage signal and image signal, and carry out gain-adjusted；
Second fixed gain amplifier is sequentially connected the first power amplifier, the 4th bandpass filtering and the second power amplification
Device, is filtered the output signal of the second fixed gain amplifier and power amplification；
Second power amplifier is divided into two-way by connecting the second power splitter after isolator, by the signal that isolator exports,
Respectively by being exported after low-pass filter.
The local oscillation circuit includes：
Temperature-compensating crystal oscillator is sequentially connected attenuator and low-noise amplifier, adjusts the power of temperature-compensating crystal oscillator output；
The output terminal of low-noise amplifier connects the input terminal of the first power splitter, and the output terminal of the first power splitter connects all the way
By output signal after the first low-pass filter, sine-wave clock signal, the first work(are provided to outside for first low-pass filter
Divide the reference frequency input terminal of the another way connection phaselocked loop of the output terminal of device.
The IF AGC control circuit includes：
The input terminal of the output terminal connection automatic gain control amplifier of first bandpass filter, receiving intermediate frequency signal are laggard
Filtered intermediate-freuqncy signal is output to automatic gain control amplifier and carries out power regulation by row filtering；Automatic growth control is put
The output terminal connection frequency mixer of big device, by the intermediate-freuqncy signal after filter and amplification, is output to frequency mixer.
First power amplifier is driving stage power amplifier.
Power supply is further included as system power supply, power supply includes DC power supply all the way and powers for power amplifier, another way direct current
Power supply is the other power elements of system after linear voltage regulator.
The utility model has the advantages that and advantage：
1. the utility model uses reference clocks of the TCXO as PLL, clock accuracy is high, and also outside by power splitter
The homologous timing reference input of high-precision 100MHz all the way is provided；
2. the utility model uses intermediate frequency AGC amplifier, can be in certain scope according to different input signals
Its gain of Power auto-adjustment；
3. the utility model realizes the amplification of RF small signals, the transmission power of signal is improved, solves communication distance
The problem of short；
4. the utility model employs wide band PLL, can have more to the frequency after frequency conversion by the control of MCU
Selection；
5. a practicality employs domestic efficient PA, power added efficiency reaches 50%, reduces entire transmitter system
The power consumption of system.
Description of the drawings
Fig. 1 is the hardware structure diagram of the utility model；
Wherein, 1 be frequency mixer, 2 be the second bandpass filter, 3 be the first fixed gain amplifier, 4 be the 3rd band logical filter
Ripple device, 5 be the second fixed gain amplifier, 6 be the first power amplifier, 7 be the 4th bandpass filter, 8 be that the second power is put
Big device, 9 be isolator, 10 be the second power splitter, 11 be the second low-pass filter, 12 be the 3rd low-pass filter.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
The utility model is connected to intermediate frequency AGC amplifier including if bandpas filter, and band logical filter is carried out to intermediate-freuqncy signal
Ripple and automatic growth control；AGC amplifier connects upper frequency mixer, and local oscillated signal connects upper frequency mixer and intermediate-freuqncy signal is carried out
Uppermixing processing；Upper frequency mixer is followed by BPF, AMP, PA etc. and is amplified RF small signals, amplified signal carry out every
Divide from work(, become two-way rf large-signal and emitted.The intermediate-freuqncy signal of input can be filtered and automatic gain control
System.Intermediate frequency small-signal all the way is received, exports two-way rf large-signal.Upconversion process can be carried out to intermediate-freuqncy signal, and can
To control frequency point by MCU.The high-precision reference clock of 100MHz can also be exported.The clutter that transmitting terminal antenna can be received
Signal is isolated, and prevents circuit self-excitation from burning.
It is the hardware structure diagram of the utility model as shown in Figure 1.
Temperature-compensating crystal oscillator TCXO connection attenuators (ATT) and low noise (LNA) adjust the power of crystal oscillator output, Ran Houjing
It crosses power splitter and is divided into two-way, be provided out the high-precision sine wave clock of 100MHz by low-pass filter (LPF) all the way, in addition
Reference input clock as PLL all the way；PLL passes through the control of MCU, output local oscillation signal (LO).
The intermediate-freuqncy signal of input is filtered out by bandpass filter with outer clutter, then connects if agc amplifier
(AGC), the intermediate-freuqncy signal of input is adjusted to the watt level to setting.
Filtered and amplified intermediate-freuqncy signal and local oscillation signal are mixed by frequency mixer, obtain the small letter of radio frequency
Number.
Signal after mixing filters out local oscillator leakage signal and image signal by bandpass filter, then by two fixations
Gain amplifier adjusts gain, promotion signal power.
Then driving stage power amplifier (PA1) is connect, further promotes RF signal power.
Driving stage power amplifier (PA1) is connected with bandpass filter, filters out the outer clutter of amplified band.
Then signal is subjected to power amplification by last power amplifier (PA2), amplified signal power is more than
6W, PA2 are followed by isolator.
Signal after isolator is divided into the rf large-signal of two-way 3W by power splitter, finally by low-pass filter
Filter out high frequency spurs and adjusting standing wave ratio.
Power supply：Input direct-current 10VDC and 5VDC, 10VDC aim at power amplifier power supply, and 5VDC passes through linear voltage regulator
LDO changes into the 3.3V of needs, for power supplys such as MCU, TCXO.
MCU：The control core of transmitter realizes the frequency control of transmitter system.
Claims (5)
1. a kind of S-band transmitter system for Radio-Frequency Wireless Communication, it is characterised in that：Local oscillation circuit connects MCU, connects
Receive the frequency control signal of MCU；Local oscillation circuit connects frequency mixer, and local oscillation signal is exported to frequency mixer；
IF AGC control circuit connects frequency mixer, exports the intermediate-freuqncy signal after filter and amplification；
Frequency mixer receives the intermediate-freuqncy signal after filter and amplification and local oscillation signal is mixed, and obtains radio frequency low-power level signal；It is mixed
It is solid that the output terminal of frequency device is sequentially connected the second bandpass filter, the first fixed gain amplifier, the 3rd bandpass filter and second
Determine gain amplifier, filter out local oscillator leakage signal and image signal, and carry out gain-adjusted；
Second fixed gain amplifier is sequentially connected the first power amplifier, the 4th bandpass filtering and the second power amplifier, right
The output signal of second fixed gain amplifier is filtered and power amplification；
Second power amplifier is divided into two-way by connecting the second power splitter after isolator, by the signal that isolator exports, and passes through
It is exported after low-pass filter.
2. the S-band transmitter system according to claim 1 for Radio-Frequency Wireless Communication, it is characterised in that：Described
Ground oscillating circuit includes：
Temperature-compensating crystal oscillator is sequentially connected attenuator and low-noise amplifier, adjusts the power of temperature-compensating crystal oscillator output；
The output terminal of low-noise amplifier connects the input terminal of the first power splitter, and the output terminal of the first power splitter connects first all the way
By output signal after the first low-pass filter, sine-wave clock signal, the first power splitter are provided to outside for low-pass filter
Output terminal another way connection phaselocked loop reference frequency input terminal.
3. the S-band transmitter system according to claim 1 for Radio-Frequency Wireless Communication, it is characterised in that：In described
Frequency automatic gain control circuit includes：
The output terminal of first bandpass filter connects the input terminal of automatic gain control amplifier, is filtered after receiving intermediate frequency signal
Filtered intermediate-freuqncy signal is output to automatic gain control amplifier and carries out power regulation by ripple；Automatic gain control amplifier
Output terminal connection frequency mixer, by the intermediate-freuqncy signal after filter and amplification, be output to frequency mixer.
4. the S-band transmitter system according to claim 1 for Radio-Frequency Wireless Communication, it is characterised in that：Described
One power amplifier is driving stage power amplifier.
5. the S-band transmitter system according to claim 1 for Radio-Frequency Wireless Communication, it is characterised in that：It further includes
Power supply is system power supply, and power supply includes DC power supply all the way and powers for power amplifier, and another way DC power supply is by linear steady
It is the other power elements of system after depressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351072.6U CN207382291U (en) | 2017-10-19 | 2017-10-19 | A kind of S-band transmitter system for Radio-Frequency Wireless Communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351072.6U CN207382291U (en) | 2017-10-19 | 2017-10-19 | A kind of S-band transmitter system for Radio-Frequency Wireless Communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207382291U true CN207382291U (en) | 2018-05-18 |
Family
ID=62335663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721351072.6U Active CN207382291U (en) | 2017-10-19 | 2017-10-19 | A kind of S-band transmitter system for Radio-Frequency Wireless Communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207382291U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120286A (en) * | 2018-10-12 | 2019-01-01 | 南京屹信航天科技有限公司 | It is a kind of for minimizing the radio circuit of ODU transmission channel |
| CN109150214A (en) * | 2018-10-12 | 2019-01-04 | 南京屹信航天科技有限公司 | A kind of miniaturization ODU transmission channel circuit |
| CN113009438A (en) * | 2021-05-25 | 2021-06-22 | 成都雷通科技有限公司 | Emission type radio frequency injection type broadband multi-target simulator |
| CN113872622A (en) * | 2021-10-15 | 2021-12-31 | 上海航天测控通信研究所 | Variable frequency point satellite measurement and control transmitter |
-
2017
- 2017-10-19 CN CN201721351072.6U patent/CN207382291U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120286A (en) * | 2018-10-12 | 2019-01-01 | 南京屹信航天科技有限公司 | It is a kind of for minimizing the radio circuit of ODU transmission channel |
| CN109150214A (en) * | 2018-10-12 | 2019-01-04 | 南京屹信航天科技有限公司 | A kind of miniaturization ODU transmission channel circuit |
| CN109120286B (en) * | 2018-10-12 | 2024-01-23 | 南京屹信航天科技有限公司 | Radio frequency circuit for miniaturized ODU transmitting channel |
| CN109150214B (en) * | 2018-10-12 | 2024-05-28 | 南京屹信航天科技有限公司 | Miniaturized ODU emission channel circuit |
| CN113009438A (en) * | 2021-05-25 | 2021-06-22 | 成都雷通科技有限公司 | Emission type radio frequency injection type broadband multi-target simulator |
| CN113872622A (en) * | 2021-10-15 | 2021-12-31 | 上海航天测控通信研究所 | Variable frequency point satellite measurement and control transmitter |
| CN113872622B (en) * | 2021-10-15 | 2022-05-27 | 上海航天测控通信研究所 | Variable frequency point satellite measurement and control transmitter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207382291U (en) | A kind of S-band transmitter system for Radio-Frequency Wireless Communication | |
| CN201966902U (en) | Multi-channel radio frequency circuit with high consistency | |
| CN102970053B (en) | Wireless sensor network application-oriented low-power consumption radio frequency receiving and sending device | |
| KR20210068071A (en) | Load Line Switching for Push-Pull Power Amplifiers | |
| CN103117707B (en) | Lower power consumption high gain upper mixer | |
| CN102694556A (en) | Second local oscillator circuit of ultra short wave receiver with low-power consumption and high phase noise index | |
| CN207623509U (en) | Radar receiver under a kind of L-band fixed ampllitude | |
| CN206894589U (en) | A kind of Ka wave bands quadruple chip | |
| CN101262258B (en) | Demodulation device for microwave signal transmitter | |
| CN101944882A (en) | Mixer | |
| CN204906384U (en) | GSM system many carrier frequency of digit are selected and automatic tracking apparatus | |
| CN107359957A (en) | Cellular phone signal shielding device | |
| CN204119356U (en) | A kind of single output satellite signal high-frequency tuner | |
| CN202565254U (en) | Ultrashort wave receiver second local oscillator circuit with low power consumption and high phase noise index | |
| CN105259535A (en) | Method for generating frequency source of vehicle radar radio frequency front end | |
| CN206759431U (en) | A kind of 3mm ripples integrate receiving unit | |
| CN204290941U (en) | Dielectric oscillator and medium oscillation module | |
| CN110289822A (en) | A kind of broadband Larger Dynamic auto-gain circuit | |
| CN210183288U (en) | High-power radio frequency VCO circuit | |
| CN111130472B (en) | Radar microwave assembly | |
| CN210986048U (en) | Millimeter wave frequency multiplier based on IMPATT diode | |
| CN212305778U (en) | C frequency channel circuit board structure | |
| CN210351099U (en) | Low-noise amplifying circuit | |
| CN220820216U (en) | L wave band modulation receiving and transmitting assembly | |
| CN214544241U (en) | Microwave single-path frequency demultiplier circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 861-3 (201) e03-230-17, shangshengou village, Hunnan District, Shenyang City, Liaoning Province Patentee after: Shenyang Zhonghong Internet of things Technology Co., Ltd Address before: At 110179 Shenyang Road, Liaoning Province Hunnan New District No. 6 Patentee before: AOWEI FEIYUE COMMUNICATION Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 861-3 (201) e03-230-17, shangshengou village, Hunnan District, Shenyang City, Liaoning Province Patentee after: Zhonghong Huilian Technology Co.,Ltd. Address before: No. 861-3 (201) e03-230-17, shangshengou village, Hunnan District, Shenyang City, Liaoning Province Patentee before: Shenyang Zhonghong Internet of things Technology Co., Ltd |
|
| CP01 | Change in the name or title of a patent holder |