CN202712398U - Improved-type coupler with a weakly-coupled microstrip line - Google Patents
Improved-type coupler with a weakly-coupled microstrip line Download PDFInfo
- Publication number
- CN202712398U CN202712398U CN 201220360997 CN201220360997U CN202712398U CN 202712398 U CN202712398 U CN 202712398U CN 201220360997 CN201220360997 CN 201220360997 CN 201220360997 U CN201220360997 U CN 201220360997U CN 202712398 U CN202712398 U CN 202712398U
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- China
- Prior art keywords
- microstrip line
- coupled microstrip
- cavity
- coupled
- coupler
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Abstract
The utility model discloses an improved-type coupler with a weakly-coupled microstrip line, comprising a cavity, and a coupled microstrip line installed in the cavity, wherein the coupled microstrip line is welded with a first joint and a second joint which are pre-arranged on the cavity; one section of the coupled microstrip line is connected with an internal load; and a first resistor, a second resistor, a third resistor and a capacitor are welded on the coupled microstrip line, plated with through holes, and grounded. The improved-type coupler with the weakly-coupled microstrip line is characterized in that a high-pass filter is installed on the coupling section of the coupled microstrip line. The improved-type coupler with the weakly-coupled microstrip line disclosed by the utility model has the beneficial effects that the limit of wavelengths is avoided, so that the volume of the coupler is greatly reduced; the high-pass filter is matched at the opening of the coupling section, and due to the smoothing effect of the filter, a stationary wave at the opening of the coupling section is greatly improved, and the coupled line can get rid of the limit of a 50-ohm line width, so that the volume of the coupler is further reduced; and the interference of the stationary wave at the coupling section is reduced while the directionality of the coupler is adjusted, so that the directionality of the device is improved.
Description
Technical field
The utility model relates to the coupler field, specifically, specially refers to a kind of modified model weak coupling microstrip line coupler.
Background technology
In microwave system, often need one road microwave power to be divided into several roads in proportion, power division problem that Here it is.It is coupler that the element of realizing this function is called the power division components and parts, mainly comprises: directional coupler, power divider and various microwave branch device.
The 1/4 wavelength parallel lines coupler that conventional art adopts, its volume is because the restriction of 1/4 wavelength is subject to certain limitation, and volume is large, power capacity is little, frequency coverage is limited.
The utility model content
The purpose of this utility model is to provide a kind of modified model weak coupling microstrip line coupler, at high pass filter of coupled section coupling, be subject to the smoothing effect of this filter, the standing wave of coupled section mouth significantly improves, and coupling line can break away from the restriction of 50 ohm of live widths, further dwindled the volume of coupler; When adjusting coupler directivity, be subject to the interference reduction of coupled section standing wave, increased the directivity of device.
The technical problem that the utility model solves can realize by the following technical solutions:
A kind of modified model weak coupling microstrip line coupler, comprise cavity, be installed on the coupled microstrip line of inside cavity, the first joint and the second joint default on described coupled microstrip line and the cavity weld, one section of coupled microstrip line connects built-in load, the first resistance, the second resistance, the 3rd resistance and condenser welding are connected on the described coupled microstrip line and hole ground connection, it is characterized in that, in the coupled section of described coupled microstrip line one high pass filter are installed.
In an embodiment of the present utility model, described cavity comprises upper cavity and lower chamber, and described upper cavity and lower chamber are equipped with connecting hole and are connected by screw fixing.
In an embodiment of the present utility model, described coupled microstrip line is by being close to by little band pressing plate and cavity, also is provided with metallic briquette little above with pressing plate.
In an embodiment of the present utility model, the frequency range of described microstrip line coupler covers 0.6-3.9GHz, and coupling fluctuation is less than ± 1.2dB, and direction is greater than 20dB, and power capacity is greater than 200w.
The beneficial effects of the utility model are: need not be subject to the restriction of wavelength, so the volume of coupler reduces significantly; At high pass filter of coupled section mouth coupling, be subject to the smoothing effect of this filter, the standing wave of coupled section mouth significantly improves, and coupling line can break away from the restriction of 50 ohm of live widths, has further dwindled the volume of coupler; When adjusting coupler directivity, be subject to the interference reduction of coupled section standing wave, increased the directivity of device.
Description of drawings
Fig. 1 is the schematic diagram of a kind of modified model weak coupling microstrip line coupler described in the utility model.
Fig. 2 is the cutaway view of a kind of modified model weak coupling microstrip line coupler described in the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
As depicted in figs. 1 and 2, a kind of modified model weak coupling microstrip line coupler described in the utility model, comprise cavity 1, be installed on the coupled microstrip line 3 of inside cavity, the first joint 6 and the second joint 12 default on described coupled microstrip line and the cavity weld, one section of coupled microstrip line connects built-in load 10, the first resistance 11, the second resistance 14, the 3rd resistance 16 and electric capacity 15 are welded on the described coupled microstrip line and hole ground connection, in the coupled section of described coupled microstrip line one high pass filter are installed.
Preferably, described cavity comprises upper cavity and lower chamber, and described upper cavity and lower chamber are equipped with connecting hole and are connected by screw fixing.
Preferably, described coupled microstrip line is by being close to by little band pressing plate 4 and cavity, also is provided with metallic briquette 2 little above with pressing plate.
Preferably, the frequency range of described microstrip line coupler covers 0.6-3.9GHz, and coupling fluctuation is less than ± 1.2dB, and direction is greater than 20dB, and power capacity is greater than 200w.
The beneficial effects of the utility model are: need not be subject to the restriction of wavelength, so the volume of coupler reduces significantly; At high pass filter of coupled section mouth coupling, be subject to the smoothing effect of this filter, the standing wave of coupled section mouth significantly improves, and coupling line can break away from the restriction of 50 ohm of live widths, has further dwindled the volume of coupler; When adjusting coupler directivity, be subject to the interference reduction of coupled section standing wave, increased the directivity of device.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. modified model weak coupling microstrip line coupler, comprise cavity, be installed on the coupled microstrip line of inside cavity, the first joint and the second joint default on described coupled microstrip line and the cavity weld, one section of coupled microstrip line connects built-in load, the first resistance, the second resistance, the 3rd resistance and condenser welding are connected on the described coupled microstrip line and hole ground connection, it is characterized in that, in the coupled section of described coupled microstrip line one high pass filter are installed.
2. a kind of modified model weak coupling microstrip line coupler according to claim 1 is characterized in that described cavity comprises upper cavity and lower chamber, and described upper cavity and lower chamber are equipped with connecting hole and are connected by screw fixing.
3. a kind of modified model weak coupling microstrip line coupler according to claim 1 is characterized in that, described coupled microstrip line is by being close to by little band pressing plate and cavity, also is provided with metallic briquette little above with pressing plate.
4. a kind of modified model weak coupling microstrip line coupler according to claim 1 is characterized in that, the frequency range of described microstrip line coupler covers 0.6-3.9GHz, and coupling fluctuation is less than ± 1.2dB, and direction is greater than 20dB, and power capacity is greater than 200w.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360997 CN202712398U (en) | 2012-07-24 | 2012-07-24 | Improved-type coupler with a weakly-coupled microstrip line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360997 CN202712398U (en) | 2012-07-24 | 2012-07-24 | Improved-type coupler with a weakly-coupled microstrip line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712398U true CN202712398U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220360997 Expired - Lifetime CN202712398U (en) | 2012-07-24 | 2012-07-24 | Improved-type coupler with a weakly-coupled microstrip line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202712398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978831A (en) * | 2017-11-23 | 2018-05-01 | 广东通宇通讯股份有限公司 | A kind of weak coupling electric bridge and the coaxial array antenna of double frequency based on the electric bridge |
-
2012
- 2012-07-24 CN CN 201220360997 patent/CN202712398U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978831A (en) * | 2017-11-23 | 2018-05-01 | 广东通宇通讯股份有限公司 | A kind of weak coupling electric bridge and the coaxial array antenna of double frequency based on the electric bridge |
| CN107978831B (en) * | 2017-11-23 | 2020-10-16 | 广东通宇通讯股份有限公司 | Weak coupling electric bridge and double-frequency coaxial array antenna based on electric bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |