CN204465504U - A kind of coupler circuit with the different degree of coupling - Google Patents
A kind of coupler circuit with the different degree of coupling Download PDFInfo
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- CN204465504U CN204465504U CN201520159951.3U CN201520159951U CN204465504U CN 204465504 U CN204465504 U CN 204465504U CN 201520159951 U CN201520159951 U CN 201520159951U CN 204465504 U CN204465504 U CN 204465504U
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- electric capacity
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Abstract
The utility model discloses a kind of coupler circuit with the different degree of coupling, this circuit by four ports (1 ~ 4), four
resonator element and four electric capacity are formed; The wherein indirect LC resonant element of node 1 and node 2; The indirect LC resonant element of node 3 and node 4; The indirect LC resonant element of node 5 and node 6; The indirect electric capacity C1 of node 1 and node 3; The indirect electric capacity C1 of node 2 and node 4; The indirect electric capacity C1 of node 3 and node 5; The indirect electric capacity C1 of node 4 and node 6; Port one is connected with node 1; Port 2 is connected with node 2; Port 4 is connected with node 5; Port 3 is connected with node 6; Port one ~ 4 all connect 50 ohmages.Compare the coupler circuit of other structures, the utility model can realize the coupler of the different degree of coupling, and can apply in the different frequency range of communication system.
Description
Technical field
The utility model relates to coupler circuit, particularly a kind of circuit with different degree of coupling coupler, belongs to communication and electronic application field, particularly in radio circuit, has important application.
Background technology
In the last few years, a series of research about filter circuit had been carried out both at home and abroad.Achieve a lot of achievement in research, be especially used in mobile communication technology, be used in power-amplifier front-end and radar antenna feed part, filter circuit effectively can solve the large problem of system passband external noise.But its project organization can only use in specific frequency range, and bandwidth is less, make system bulk comparatively large, and versatility is not strong.Simultaneously traditional coupler circuit is due to the problem of its circuit structure, and make temperature sensitivity extremely strong, applicability is very limited.The utility model, for above problem, can effectively solve, and to meet system requirements, and stability is high, volume is little, compact conformation, processing are simple, applied widely.
Summary of the invention
The utility model provides a kind of and has that structure is simple, volume is little, stability is high, the resonator element coupler circuit of the different degree of coupling.
The technical scheme realizing the utility model object is: one has different degree of coupling coupler circuit, and this circuit structure is by comprising four ports (1 ~ 4), four LC resonator elements, four electric capacity realizations; Wherein connect a LC resonant element respectively between node 1 and node 2, between node 3 and node 4, between node 5 and node 6; The indirect electric capacity C1 of node 1 and node 3; The indirect electric capacity C2 of node 2 and node 4; The indirect electric capacity C3 of node 3 and node 5; The indirect electric capacity C4 of node 4 and node 6, (wherein the parameter value of electric capacity C1, C2, C3 and C4 is identical); Port one is connected with node 1; Port 2 is connected with node 2; Port 4 is connected with node 5; Port 3 is connected with node 6; Port one ~ 4 all connect 50 ohmages; This circuit structure can realize 90
0coupling, by port 4 is opened a way, can 180 be realized
0coupling.
Compared with prior art, the utility model provides the feature that a kind of structure is simple, multiband, compact conformation, stability are high, have the different degree of coupling.
Accompanying drawing explanation
Fig. 1 is that the utility model one has different degree of coupling coupler circuit structure chart.
Fig. 2 is the utility model one 90
0coupler circuit insertion loss responds.
Fig. 3 is the utility model one 180
0coupler circuit insertion loss responds.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Composition graphs 1, the utility model is that one has different degree of coupling coupler circuit, and this circuit structure is by comprising four ports (1 ~ 4), four LC resonator elements, four electric capacity realizations; Wherein connect a LC resonant element respectively between node 1 and node 2, between node 3 and node 4, between node 5 and node 6; The indirect electric capacity C1 of node 1 and node 3; The indirect electric capacity C2 of node 2 and node 4; The indirect electric capacity C3 of node 3 and node 5; The indirect electric capacity C4 of node 4 and node 6, wherein the parameter value of electric capacity C1, C2, C3 and C4 is identical; Port one is connected with node 1; Port 2 is connected with node 2; Port 4 is connected with node 5; Port 3 is connected with node 6; Port one ~ 4 all connect 50 ohmages; This circuit structure can realize 90
0coupling, by port 4 is opened a way, can 180 be realized
0coupling.
Composition graphs 1, this circuit structure can realize 90
0coupling, the response of its insertion loss as shown in Figure 2.Opened a way by end 4 in Fig. 1, its response as shown in Figure 3, can realize 180
0coupling; Can find from Fig. 2, Fig. 3, this coupler 90
0, 180
0the feature of coupling.Coupler can be on a single die integrated with RF transceiver.
The coupler of this kind of different degree of coupling can be used in RF transceiver, its Output rusults is good, result is used to show that this device has good degree of suppression to channel receiver pulse and noise level, effectively overcome the problem adopting traditional three-dB coupler volume excessive, can ensure that device obtains best channel signal transmission, coupling and isolation effect.
Claims (1)
1. there is a different degree of coupling coupler circuit, it is characterized in that: this circuit structure is by comprising four ports (1 ~ 4), four LC resonator elements, four electric capacity realizations; Wherein connect a LC resonant element respectively between node 1 and node 2, between node 3 and node 4, between node 5 and node 6; The indirect electric capacity C1 of node 1 and node 3; The indirect electric capacity C2 of node 2 and node 4; The indirect electric capacity C3 of node 3 and node 5; The indirect electric capacity C4 of node 4 and node 6; Port one is connected with node 1; Port 2 is connected with node 2; Port 4 is connected with node 5; Port 3 is connected with node 6; Port one ~ 4 all connect 50 ohmages; This circuit structure can realize 90
0coupling, by port 4 is opened a way, can 180 be realized
0coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159951.3U CN204465504U (en) | 2015-03-20 | 2015-03-20 | A kind of coupler circuit with the different degree of coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159951.3U CN204465504U (en) | 2015-03-20 | 2015-03-20 | A kind of coupler circuit with the different degree of coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204465504U true CN204465504U (en) | 2015-07-08 |
Family
ID=53672324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520159951.3U Expired - Fee Related CN204465504U (en) | 2015-03-20 | 2015-03-20 | A kind of coupler circuit with the different degree of coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204465504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702266A (en) * | 2015-03-20 | 2015-06-10 | 徐园园 | Coupler circuit with different coupling degrees |
-
2015
- 2015-03-20 CN CN201520159951.3U patent/CN204465504U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702266A (en) * | 2015-03-20 | 2015-06-10 | 徐园园 | Coupler circuit with different coupling degrees |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150708 Termination date: 20160320 |