CN211296701U - High-isolation multichannel switch frequency selection circuit for meteorological radar - Google Patents
High-isolation multichannel switch frequency selection circuit for meteorological radar Download PDFInfo
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- CN211296701U CN211296701U CN202020277222.9U CN202020277222U CN211296701U CN 211296701 U CN211296701 U CN 211296701U CN 202020277222 U CN202020277222 U CN 202020277222U CN 211296701 U CN211296701 U CN 211296701U
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Abstract
The utility model discloses a meteorological radar high-isolation multichannel switch frequency selection circuit, which comprises at least two switching circuits and a power synthesizer; the switch circuit comprises at least two stages of single-pole double-throw switches connected with each other; and the output end of the switching circuit is connected with the input end of the power synthesizer. The utility model discloses a binary channels and every passageway include at least two-stage single-pole double-throw switch and get into power combiner, can improve greatly and improve the isolation, reduce the signal influence between the different passageways of frequency selection circuit, satisfy the requirement of circuit design isolation index.
Description
Technical Field
The utility model relates to a signal processing technology field especially relates to meteorological radar high isolation multichannel switch frequency-selecting circuit.
Background
A calibration unit in the weather radar system supports an online radar calibration function, various test signals in the weather radar system are connected into a receiving main channel through a control link, real-time online performance test and feedback are achieved, the requirements of automatic correction and the like of a radar system detection accuracy system are met, and high channel isolation is required to be met for selection of various test signals in the weather radar system. The existing frequency selection circuit has large signal influence among different channels and can not meet the requirement of circuit design isolation index.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provide a high-isolation multichannel switch frequency selection circuit of a meteorological radar, which comprises at least two switching circuits and a power synthesizer; the switch circuit comprises at least two stages of single-pole double-throw switches connected with each other; and the output end of the switching circuit is connected with the input end of the power synthesizer.
The beneficial effects of the utility model reside in that: the utility model discloses a binary channels and every passageway include at least two-stage single-pole double-throw switch and get into power combiner, can improve greatly and improve the isolation, reduce the signal influence between the different passageways of frequency selection circuit, satisfy the requirement of circuit design isolation index.
Drawings
FIG. 1 is a schematic diagram of the present invention;
fig. 2 is a circuit diagram of the present invention.
In the figure: u1-first single pole double throw switch; u2-second single pole double throw switch; u3-third single pole double throw switch; u4-fourth single pole double throw switch; U5-Power combiner.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in the attached figure 1, the utility model discloses a meteorological radar high-isolation multichannel switch frequency-selecting circuit, including at least two ways of switching circuit and power synthesizer; the switch circuit comprises at least two stages of single-pole double-throw switches connected with each other; and the output end of the switching circuit is connected with the input end of the power synthesizer.
Specifically, the model of the single-pole double-throw switch is HMC232ALP 4E.
Specifically, the power combiner employs an EP2C + power combiner.
As shown in fig. 2, a dual channel switching circuit and power combiner are used. The dual-channel switch circuit comprises a first channel switch circuit and a second channel switch circuit; the first channel switch circuit comprises a first single-pole double-throw switch and a second single-pole double-throw switch which are connected in series; the second channel switch circuit comprises a third single-pole double-throw switch and a fourth single-pole double-throw switch which are connected in series; the output end of the second single-pole double-throw switch and the output end of the fourth single-pole double-throw switch are respectively connected with the input end of the power synthesizer.
The radio frequency signal enters the power combiner through a two-stage single-pole double-throw switch, and the power combiner adopts a high-isolation power combiner EP2C +. The single-pole double-throw switch is adopted, the HMC232ALP4E with high isolation is adopted, the switch function is realized through TTL control, and each channel can be controlled independently. The isolation of the single-pole double-throw switch in an X wave band is-55 dBc, and the two-stage isolation can reach more than-110 dB.
The utility model discloses a binary channels and every passageway include at least two-stage single-pole double-throw switch and get into power combiner, can improve greatly and improve the isolation, reduce the signal influence between the different passageways of frequency selection circuit, satisfy the requirement of circuit design isolation index.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (3)
1. The high-isolation multichannel switch frequency selection circuit for the meteorological radar is characterized by comprising at least two switching circuits and a power synthesizer; the switch circuit comprises at least two stages of single-pole double-throw switches connected with each other; and the output end of the switching circuit is connected with the input end of the power synthesizer.
2. The weather radar high-isolation multichannel switch frequency-selecting circuit as claimed in claim 1, wherein the model of the single-pole double-throw switch is HMC232ALP 4E.
3. The multi-channel switch frequency-selecting circuit with high isolation for meteorological radar as claimed in claim 1, wherein the power combiner is an EP2C + power combiner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020277222.9U CN211296701U (en) | 2020-03-09 | 2020-03-09 | High-isolation multichannel switch frequency selection circuit for meteorological radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020277222.9U CN211296701U (en) | 2020-03-09 | 2020-03-09 | High-isolation multichannel switch frequency selection circuit for meteorological radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211296701U true CN211296701U (en) | 2020-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020277222.9U Active CN211296701U (en) | 2020-03-09 | 2020-03-09 | High-isolation multichannel switch frequency selection circuit for meteorological radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211296701U (en) |
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2020
- 2020-03-09 CN CN202020277222.9U patent/CN211296701U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221206 Address after: T2-7 # - 1-101, Liandong U Valley Tianfu International Emerging Technology Complex, No. 666, Jingong East 1st Road, Xinxing Street, Tianfu New District, Chengdu, 610000, Sichuan Patentee after: InnoMicro (Chengdu) Electronics Co.,Ltd. Address before: 610000 1, 3, 1, 366 north section of lakeside road, Tianfu New District, Chengdu, Sichuan Patentee before: Chengdu Yuanwang Detection Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240327 Address after: Room 201-2, 2nd Floor, Building 9, No. 166 Wuxing Fourth Road, Wuhou District, Chengdu City, Sichuan Province, 610000 Patentee after: Chengdu Yuanwang Leixin Electronic Technology Co.,Ltd. Country or region after: China Address before: T2-7 # - 1-101, Liandong U Valley Tianfu International Emerging Technology Complex, No. 666, Jingong East 1st Road, Xinxing Street, Tianfu New District, Chengdu, 610000, Sichuan Patentee before: InnoMicro (Chengdu) Electronics Co.,Ltd. Country or region before: China |