CN201682037U - Single-pole double-throw switch - Google Patents
Single-pole double-throw switch Download PDFInfo
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- CN201682037U CN201682037U CN2010201968750U CN201020196875U CN201682037U CN 201682037 U CN201682037 U CN 201682037U CN 2010201968750 U CN2010201968750 U CN 2010201968750U CN 201020196875 U CN201020196875 U CN 201020196875U CN 201682037 U CN201682037 U CN 201682037U
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- diode
- throw switch
- pole double
- parallel
- input
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Abstract
The utility model discloses a single-pole double-throw switch relating to the field of electronic communication. The single-pole double-throw switch aims at solving the technical problems of large volume, heavy weight, larger insertion loss and standing waves, lower isolation height, and the like, and consists of an input end, a radio-frequency circuit, a TTL control circuit and two output ends, wherein the radio-frequency circuit consists of two subcircuits, each subcircuit is connected in series with a diode I, three diodes connected in parallel, and a capacitor II in sequence from the input end to the output ends, the three diodes connected in parallel are respectively a diode II, a diode III and a diode IV, and the output ends of the three diodes connected in parallel are grounded; the input end of an inductor is in bridge connection between the input end of a capacitor I and the input end of the TTL control circuit, and the output end thereof is in bridge connection between the diode IV and the capacitor II, and the output end of the capacitor I is grounded. The single-pole double-throw switch is applicable to electronic equipment for microwave communication.
Description
Technical field
The utility model relates to electronic communication field, particularly a kind of single-pole double-throw switch (SPDT) that is used for the microwave communication electronic equipment.
Background technology
Single-pole double-throw switch (SPDT) is the important component part in the microwave transmitting and receiving system, is widely used in fields such as microwave measurement, microwave relay, radar, satellite communication.
Currently marketed single-pole double-throw switch (SPDT) is a lot, but because of its technological obsolescence, technical indicator is comparatively backward, and is bigger as Insertion Loss, standing wave.Simultaneously, in actual applications, the equipment that has needs less Insertion Loss, and the equipment that has needs higher isolation etc., and existing single-pole double-throw switch (SPDT) can not satisfy this type of higher system requirement.
Summary of the invention
The utility model is intended to solve that traditional single-pole double-throw switch (SPDT) volume is big, quality is heavy, Insertion Loss and standing wave is big, the high inadequately technical problem of isolation, has to provide a kind of that volume is little, in light weight, an Insertion Loss and standing wave is little, isolate high single-pole double-throw switch (SPDT).
The purpose of this utility model is achieved through the following technical solutions.
Single-pole double-throw switch (SPDT) of the present utility model, constitute by an input 1, radio circuit 10, TTL control circuit 11 and two outputs, wherein radio circuit 10 is made up of two branch roads of parallel connection, each route input is connected in series diode 1, three diode connected in parallel and electric capacity 28 in turn to output 9, three diode connected in parallel are respectively diode 23, diode 34 and 45, three diode connected in parallel output head groundings of diode; The input of inductance 7 is connected across between the input of the input of electric capacity 1 and TTL control circuit 11, between its output cross-over connection diode 45 and the electric capacity 28, and the output head grounding of electric capacity 1.
Single-pole double-throw switch (SPDT) of the present utility model, wherein said TTL control circuit 11 employed power modules are LT1931, this module input voltage is+5V that output voltage is-5V.
Single-pole double-throw switch (SPDT) of the present utility model, wherein said diode are PIN diode.
The beneficial effect of the utility model single-pole double-throw switch (SPDT):
1. Insertion Loss and standing wave are little, the isolation height;
2. volume is littler;
3. weight is lighter, and is easy for installation, and price is low.
Description of drawings
Fig. 1 structure principle chart of the present utility model
The number in the figure explanation:
1 input, 2 diodes one, 3 diodes two, 4 diodes three, 5 diodes four, 6 electric capacity one, 7 inductance, 8 electric capacity two, 9 outputs, 10 radio circuits, 11TTL control circuit, 12 diodes five
Embodiment
The utility model detailed structure, application principle, effect and effect with reference to accompanying drawing 1, are illustrated by following execution mode.
Single-pole double-throw switch (SPDT) of the present utility model, constitute by an input 1, radio circuit 10, TTL control circuit 11 and two outputs, wherein radio circuit 10 is made up of two branch roads of parallel connection, each route input is connected in series diode 1, three diode connected in parallel and electric capacity 28 in turn to output 9, three diode connected in parallel are respectively diode 23, diode 34 and 45, three diode connected in parallel output head groundings of diode; The input of inductance 7 is connected across between the input of the input of electric capacity 1 and TTL control circuit 11, between its output cross-over connection diode 45 and the electric capacity 28, and the output head grounding of electric capacity 1.
Described diode is a PIN diode.
When radiofrequency signal is imported through input 1, select the control voltages to come gating diode 1 or diode 5 12 by TTL control circuit 11, to realize the gating and the shutoff of microwave signal.
Therefore single-pole double-throw switch (SPDT) of the present utility model has that volume is little, in light weight, Insertion Loss and plurality of advantages such as standing wave is little, isolation height.
Claims (3)
1. single-pole double-throw switch (SPDT), it is characterized in that: constitute by an input (1), radio circuit (10), TTL control circuit (11) and two outputs, wherein radio circuit (10) is made up of two branch roads of parallel connection, each route input is connected in series one (2), three diode connected in parallel of diode and electric capacity two (8) in turn to output (9), three diode connected in parallel are respectively diode two (3), diode three (4) and diode four (5), three diode connected in parallel output head groundings; The input of inductance (7) is connected across between the input of the input of electric capacity one (6) and TTL control circuit (11), between its output cross-over connection diode four (5) and the electric capacity two (8), and the output head grounding of electric capacity one (6).
2. single-pole double-throw switch (SPDT) as claimed in claim 1 is characterized in that: the employed power module of described TTL control circuit (11) is LT1931, and this module input voltage is+5V that output voltage is-5V.
3. single-pole double-throw switch (SPDT) as claimed in claim 1 is characterized in that: described diode is a PIN diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201968750U CN201682037U (en) | 2010-05-19 | 2010-05-19 | Single-pole double-throw switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201968750U CN201682037U (en) | 2010-05-19 | 2010-05-19 | Single-pole double-throw switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201682037U true CN201682037U (en) | 2010-12-22 |
Family
ID=43347072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201968750U Expired - Fee Related CN201682037U (en) | 2010-05-19 | 2010-05-19 | Single-pole double-throw switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201682037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470026A (en) * | 2015-08-18 | 2017-03-01 | 中兴通讯股份有限公司 | A kind of radio-frequency switch circuit and radio frequency link |
-
2010
- 2010-05-19 CN CN2010201968750U patent/CN201682037U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470026A (en) * | 2015-08-18 | 2017-03-01 | 中兴通讯股份有限公司 | A kind of radio-frequency switch circuit and radio frequency link |
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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 |
Granted publication date: 20101222 Termination date: 20150519 |
|
| EXPY | Termination of patent right or utility model |