CN205377827U - Single -pole double -throw circuit - Google Patents
Single -pole double -throw circuit Download PDFInfo
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- CN205377827U CN205377827U CN201620003133.9U CN201620003133U CN205377827U CN 205377827 U CN205377827 U CN 205377827U CN 201620003133 U CN201620003133 U CN 201620003133U CN 205377827 U CN205377827 U CN 205377827U
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- microstrip line
- pin diode
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- pole double
- input interface
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Abstract
The utility model discloses a single -pole double -throw circuit, series branch including input interface IN, first output interface OUT1, second output interface OUT2 and two mutual symmetries, the series branch includes PIN diode D1~D5, matched resistance R1, filter capacitance C1 and first to the fourth microstrip line, input interface IN passes through PIN diode D1 and is connected with first microstrip line, first microstrip line is connected with filter capacitance C1 through parallelly connected PIN diode D5 and matched resistance R1, filter capacitance C1 is connected with first output interface OUT1 again, first microstrip line still respectively with the second microstrip line, third microstrip line and fourth microstrip line are connected, the second microstrip line passes through PIN diode D2 and ground butt joint, the third microstrip line passes through PIN diode D3 and ground butt joint, the fourth microstrip line passes through PIN diode D4 and ground butt joint, input interface IN, first output interface OUT1 and second output interface OUT2 still all do not dock with ground. The utility model has the characteristics of simple structure, loss are hanged down, the standing -wave ratio is little, the isolation is high.
Description
Technical field
This utility model relates to a kind of single-pole double-throw switch (SPDT) circuit.
Background technology
In current microwave communication system, power switch generally adopts two kinds of forms:
(1) adopting the PIN diode of discrete silicon materials, adopt the mode of hybrid circuit to realize, its shortcoming is that volume is big, and operating frequency is narrow and control circuit is complicated.
(2) adopting GaAs (GaAs) pseudomorphic high electron mobility transistor single-chip switching, HEMT switch has the features such as little, the application bandwidth of volume, but, the power passed through is relatively small.
In addition, existing power switch also has the shortcomings such as power consumption is big, isolation is undesirable, and along with development and the people of modern communication technology are day by day harsh to QoS requirement ground, traditional power switch can not meet actually used demand.
Utility model content
The purpose of this utility model is in that to overcome the deficiencies in the prior art, it is provided that a kind of have simple in construction, insertion loss is low, standing-wave ratio is little, isolation is high, the single-pole double-throw switch (SPDT) circuit of the feature such as low in energy consumption, easy to use.
The purpose of this utility model is achieved through the following technical solutions: a kind of single-pole double-throw switch (SPDT) circuit, including input interface IN, the first output interface OUT1, the second output interface OUT2 and two symmetrical series arms, input interface IN is connected with the first output interface OUT1 by a series arm, and input interface IN is connected with the second output interface OUT2 also by another series arm.
Described series arm includes PIN diode D1 ~ D5, build-out resistor R1, filter capacitor C1 and first to fourth microstrip line.
Described input interface IN is connected by PIN diode D1 and the first microstrip line, first microstrip line PIN diode D5 in parallel and build-out resistor R1 is connected with filter capacitor C1, filter capacitor C1 is connected with the first output interface OUT1 again, first microstrip line is also connected with the second microstrip line, the 3rd microstrip line and the 4th microstrip line respectively, second microstrip line by PIN diode D2 with dock, 3rd microstrip line by PIN diode D3 with dock, the 4th microstrip line pass through PIN diode D4 with dock.
Described input interface IN, the first output interface OUT1 and the second output interface OUT2 also all with dock.
Further, described first to fourth microstrip line includes 1/4 λ microstrip line and 1/2 λ microstrip line.
Further, described first to fourth microstrip line is 1/4 λ microstrip line.
Further, described first to fourth microstrip line is 1/2 λ microstrip line.
Further, described circuit also includes a LC wave filter, and described input interface IN is connected with series arm by a LC wave filter.
Further, described circuit also includes the 2nd LC wave filter, PIN diode D5 in parallel and build-out resistor R1 by the 2nd LC wave filter with dock.
The beneficial effects of the utility model are: the features such as this utility model has simple in construction, insertion loss is low, standing-wave ratio is little, isolation is high, low in energy consumption, easy to use.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of this utility model single-pole double-throw switch (SPDT).
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, This embodiment describes a kind of single-pole double-throw switch (SPDT) circuit, including input interface IN, the first output interface OUT1, the second output interface OUT2 and two symmetrical series arms, input interface IN is connected with the first output interface OUT1 by a series arm, and input interface IN is connected with the second output interface OUT2 also by another series arm.
Described series arm includes PIN diode D1 ~ D5, build-out resistor R1, filter capacitor C1 and first to fourth microstrip line.
Described input interface IN is connected by PIN diode D1 and the first microstrip line, first microstrip line PIN diode D5 in parallel and build-out resistor R1 is connected with filter capacitor C1, filter capacitor C1 is connected with the first output interface OUT1 again, first microstrip line is also connected with the second microstrip line, the 3rd microstrip line and the 4th microstrip line respectively, second microstrip line by PIN diode D2 with dock, 3rd microstrip line by PIN diode D3 with dock, the 4th microstrip line pass through PIN diode D4 with dock.
Described input interface IN, the first output interface OUT1 and the second output interface OUT2 also all with dock.
Further, described first to fourth microstrip line includes 1/4 λ microstrip line and 1/2 λ microstrip line.
Further, described first to fourth microstrip line is 1/4 λ microstrip line.
Further, described first to fourth microstrip line is 1/2 λ microstrip line.
Further, described circuit also includes a LC wave filter, and described input interface IN is connected with series arm by a LC wave filter.
Further, described circuit also includes the 2nd LC wave filter, PIN diode D5 in parallel and build-out resistor R1 by the 2nd LC wave filter with dock.
The features such as this utility model has simple in construction, insertion loss is low, standing-wave ratio is little, isolation is high, low in energy consumption, easy to use, PIN diode D2 ~ D4 in parallel, a LC wave filter, the 2nd LC wave filter etc. can increase the isolation of single-pole double-throw switch (SPDT).Input interface IN, the first output interface OUT1 and the second output interface OUT2 can complete the gating function of single-pole double-throw switch (SPDT) by the mode fed.
Describe in an illustrative manner above with reference to accompanying drawing according to a kind of single-pole double-throw switch (SPDT) circuit of the present utility model.But; skilled artisan would appreciate that; for a kind of single-pole double-throw switch (SPDT) circuit that above-mentioned this utility model is proposed; various improvement can also be made on the basis without departing from this utility model content; or wherein portion of techniques feature is carried out equivalent replacement; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.Therefore, protection domain of the present utility model should be determined by the content of appending claims.
Claims (6)
1. a single-pole double-throw switch (SPDT) circuit, it is characterized in that: include input interface IN, the first output interface OUT1, the second output interface OUT2 and two symmetrical series arms, input interface IN is connected with the first output interface OUT1 by a series arm, and input interface IN is connected with the second output interface OUT2 also by another series arm；
Described series arm includes PIN diode D1 ~ D5, build-out resistor R1, filter capacitor C1 and first to fourth microstrip line；
Input interface IN is connected by PIN diode D1 and the first microstrip line, first microstrip line PIN diode D5 in parallel and build-out resistor R1 is connected with filter capacitor C1, filter capacitor C1 is connected with the first output interface OUT1 again, first microstrip line is also connected with the second microstrip line, the 3rd microstrip line and the 4th microstrip line respectively, second microstrip line by PIN diode D2 with dock, 3rd microstrip line by PIN diode D3 with dock, the 4th microstrip line pass through PIN diode D4 with dock；
Described input interface IN, the first output interface OUT1 and the second output interface OUT2 also all with dock.
2. a kind of single-pole double-throw switch (SPDT) circuit according to claim 1, it is characterised in that: described first to fourth microstrip line includes 1/4 λ microstrip line and 1/2 λ microstrip line.
3. a kind of single-pole double-throw switch (SPDT) circuit according to claim 1, it is characterised in that: described first to fourth microstrip line is 1/4 λ microstrip line.
4. a kind of single-pole double-throw switch (SPDT) circuit according to claim 1, it is characterised in that: described first to fourth microstrip line is 1/2 λ microstrip line.
5. a kind of single-pole double-throw switch (SPDT) circuit according to claim 1, it is characterised in that: described circuit also includes a LC wave filter, and described input interface IN is connected with series arm by a LC wave filter.
6. a kind of single-pole double-throw switch (SPDT) circuit according to claim 1, it is characterised in that: described circuit also includes the 2nd LC wave filter, PIN diode D5 in parallel and build-out resistor R1 by the 2nd LC wave filter with dock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003133.9U CN205377827U (en) | 2016-01-05 | 2016-01-05 | Single -pole double -throw circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003133.9U CN205377827U (en) | 2016-01-05 | 2016-01-05 | Single -pole double -throw circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205377827U true CN205377827U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620003133.9U Active CN205377827U (en) | 2016-01-05 | 2016-01-05 | Single -pole double -throw circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN205377827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114785332A (en) * | 2022-04-28 | 2022-07-22 | 电子科技大学 | Three-band single-pole multi-throw radio frequency switch based on reconfigurable filter network |
-
2016
- 2016-01-05 CN CN201620003133.9U patent/CN205377827U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114785332A (en) * | 2022-04-28 | 2022-07-22 | 电子科技大学 | Three-band single-pole multi-throw radio frequency switch based on reconfigurable filter network |
| CN114785332B (en) * | 2022-04-28 | 2023-05-16 | 电子科技大学 | Three-frequency band single-pole multi-throw radio frequency switch based on reconfigurable filter network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |