CN109560354A - A kind of low-loss single-pole single-throw(SPST RF switch - Google Patents
A kind of low-loss single-pole single-throw(SPST RF switch Download PDFInfo
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- CN109560354A CN109560354A CN201811375566.7A CN201811375566A CN109560354A CN 109560354 A CN109560354 A CN 109560354A CN 201811375566 A CN201811375566 A CN 201811375566A CN 109560354 A CN109560354 A CN 109560354A
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- inner conductor
- outer conductor
- conductor
- throw
- spst
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
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- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention discloses a kind of low-loss single-pole single-throw(SPST RF switches, including the first inner conductor, second inner conductor and third outer conductor, through-hole is opened up among the third outer conductor, first inner conductor and the second inner conductor is coaxial is mounted in the interior bone of third outer conductor, wherein one end of the first inner conductor is located at the interior bone left end of third outer conductor, one end of second inner conductor is located at the right end of third outer conductor interior bone, the right end of first inner conductor opens up blind hole, little spring is disposed in blind hole from left to right, driven magnet steel and sliding inner conductor, sliding inner conductor can horizontally slip in blind hole, inner conductor is slided when sliding into left end mutually to separate with the second inner conductor, beneficial effects of the present invention: this kind of RF switch is able to achieve the conducting and break function of signal, with low-loss, big function can be transmitted The characteristics of rate signal；Structure novel, easy processing are easily assembled, and cost is relatively low.
Description
Technical field
The invention belongs to RF switch technical fields, and in particular to a kind of low-loss single-pole single-throw(SPST RF switch.
Background technique
With the development of microwave technology, RF switch is big in over-the-horizon radar, airborne high-power transmitter, high hollow testing etc.
It is had been more and more widely used in terms of power system, this requires RF switches to have the spy of low-loss, resistance to high-power signal
Point.
Single-pole single-throw(SPST RF switch mostly uses the scheme of integrated circuit at present, as application No. is: 201510481744.4
Patent of invention, the single-pole double throw RF switch and hilted broadsword for disclosing a kind of single-pole single-throw(SPST RF switch and its composition are thrown radio frequency more and are opened
It closes, this kind of scheme has many advantages, such as low-power consumption, reliable operation, miniaturization, but cannot transmit high-power signal.
RF coaxial adapters be coaxial line transmission structure, with low standing wave, filter with low insertion loss, high isolation characteristic, can transmit
The advantages of high-power signal, but once be connected in microwave system, it cannot disconnect, can not achieve signal and be connected and disconnect at any time
Function, it is inconvenient to use.
Summary of the invention
After RF coaxial adapters are connected in microwave system in the prior art, it cannot disconnect, can not achieve signal
The function of being connected and disconnect at any time, inconvenient problem with use provide a kind of low-loss single-pole single-throw(SPST RF switch.
A kind of low-loss single-pole single-throw(SPST RF switch, including the first inner conductor, the second inner conductor and third outer conductor.
Open up through-hole among the third outer conductor, first inner conductor and the coaxial installation of the second inner conductor are fixed
In the interior bone of third outer conductor, wherein one end of the first inner conductor is located at the interior bone left end of third outer conductor, the
One end of two inner conductors is located at the right end of third outer conductor interior bone.
The right end of first inner conductor opens up blind hole, is disposed with little spring, driven magnet steel in blind hole from left to right
With sliding inner conductor, sliding inner conductor can horizontally slip in blind hole, when sliding into left end in sliding inner conductor and second
Conductor mutually separates, and inner conductor is contacted and is connected to the second inner conductor when sliding into right end.
Active magnet steel is provided on third outer conductor, active magnet steel can move left and right on third outer conductor, driven magnet steel
The face opposite with active magnet steel is the homopolarity in magnet steel magnetic field.
On the basis of above scheme, low-loss single-pole single-throw(SPST RF switch, along length on the outer wall of the third outer conductor
Degree direction open up annular groove D, the left end of annular groove D is closed, right-end openings, set gradually from left to right in annular groove D big spring,
Active magnet steel and gear sleeve, the gear sleeve are connect with the outer wall thread of third outer conductor.
On the basis of above scheme, low-loss single-pole single-throw(SPST RF switch is arranged between active magnet steel and gear sleeve
There is a slip collar, the end of third outer conductor opens up annular groove C, in the groove of big snap ring fixed gear position sleeve and is located at annular groove
In C.
Preferably, low-loss single-pole single-throw(SPST RF switch, the right end of second inner conductor is opened up to be adapted with inner conductor
Connecting hole.
Preferably, low-loss single-pole single-throw(SPST RF switch, the first inner conductor is by the first outer conductor, the second outer conductor, protection
Lantern ring, medium support installation are fixed, first inner conductor suit medium support, suit protection lantern ring in medium support, and medium support is by the
Step surface on one inner conductor limits its freedom degree in the first inner conductor axial direction, and the first outer conductor and the second outer conductor open up
Through-hole opens up the positioning surface being mutually adapted in through-hole, and the first outer conductor is connected through a screw thread with the second outer conductor, is mutually adapted
Positioning surface will protect lantern ring, medium support to clamp positioning.
Preferably, low-loss single-pole single-throw(SPST RF switch, the second inner conductor are supportted by the 4th outer conductor, protection lantern ring, medium
Installation is fixed, suit medium support on second inner conductor, and suit protection lantern ring in medium support, medium is supportted by the second inner conductor
Step surface limit its freedom degree in the second inner conductor axial direction, the 4th outer conductor opens up through-hole, the 4th outer conductor and third
Outer conductor is connected through a screw thread, and the positioning surface being mutually adapted is opened up in the through-hole of connecting pin, and the positioning surface being mutually adapted will be protected
Sheath ring, medium support clamp positioning.
On the basis of above scheme, low-loss single-pole single-throw(SPST RF switch, the left end and the 4th of first outer conductor
The right end of outer conductor is rotatably connected to swivel nut, and small snap ring is fixedly installed in swivel nut, and small snap ring is located at a left side for the first outer conductor
In the annular groove that the right end of end and the 4th outer conductor opens up.
Preferably, low-loss single-pole single-throw(SPST RF switch, sliding inner conductor are fixed together with driven bonding magnetic steel.
Beneficial effects of the present invention:
1. this kind of RF switch is able to achieve the conducting and break function of signal, there is low-loss, high-power signal can be transmitted
The characteristics of；
2. structure novel, easy processing are easily assembled, cost is relatively low.
Detailed description of the invention
Fig. 1 is the overall structure diagram of one embodiment of the invention；
Fig. 2 is one embodiment of the invention action relationships figure；
Fig. 3 is one embodiment of the invention microwave access on state figure；
Fig. 4 is one embodiment of the invention microwave access off-state figure；
Fig. 5 is one embodiment of the invention outer conductor structural schematic diagram.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical scheme is described further.
A kind of low-loss single-pole single-throw(SPST RF switch, including the first inner conductor 2, the second inner conductor 11 and third outer conductor
12。
Open up through-hole among the third outer conductor 12, first inner conductor 2 and the coaxial peace of the second inner conductor 11
Dress is fixed in the interior bone of third outer conductor 12, wherein one end of the first inner conductor 2 is located at the inside of third outer conductor 12
Through-hole left end, one end of the second inner conductor 11 are located at the right end of 12 interior bone of third outer conductor.
The right end of first inner conductor 2 opens up blind hole, is disposed with little spring 8, driven magnetic in blind hole from left to right
Steel 9 and sliding inner conductor 10, sliding inner conductor 10 can horizontally slip in blind hole, slide inner conductor 10 when sliding into left end
It is separated with 11 phase of the second inner conductor, inner conductor 10 is contacted and is connected to the second inner conductor 11 when sliding into right end.
Active magnet steel 17 is provided on third outer conductor 12, active magnet steel 17 can move left and right on third outer conductor 12,
Driven magnet steel 9 face opposite with active magnet steel 17 is the homopolarity in magnet steel magnetic field.
Further, as shown in figure 5, opening up annular groove D, annular groove along its length on the outer wall of the third outer conductor 12
The left end of D is closed, right-end openings, sets gradually big spring 18, active magnet steel 17 and gear sleeve in annular groove D from left to right
15, the gear sleeve 15 is connect with the outer wall thread of third outer conductor 12.
Further, it as shown in figure 5, being provided with slip collar 16 between active magnet steel 17 and gear sleeve 15, is led outside third
The end of body 12 opens up annular groove C, and big snap ring 14 is fixed in the groove of gear sleeve 15 and is located in annular groove C.
Preferably, the left end of second inner conductor 11 opens up connecting hole compatible with sliding inner conductor 10.
Further, the first inner conductor 2 is solid by the first outer conductor 4, the second outer conductor 5, protection lantern ring 6,7 installation of medium support
Fixed, first inner conductor 2 is set with medium support 7, and suit protection lantern ring 6 in medium support 7, medium support 7 is by the first inner conductor 2
Step surface limits its freedom degree in 2 axial direction of the first inner conductor, and the first outer conductor 4 and the second outer conductor 5 open up through-hole, through-hole
In open up the positioning surface being mutually adapted, the first outer conductor 4 is connected through a screw thread with the second outer conductor 5, the positioning surface being mutually adapted
It will protection lantern ring 6,7 clamping positioning of medium support.
Further, the second inner conductor 11 is fixed by the 4th outer conductor 13, protection lantern ring 6,7 installation of medium support, and described second
Medium support 7 is set on inner conductor 11, suit protection lantern ring 6 in medium support 7, medium support 7 is by the step surface on the second inner conductor 11
Limit its freedom degree in 11 axial direction of the second inner conductor, the 4th outer conductor 13 opens up through-hole, the 4th outer conductor 13 with outside third
Conductor 12 is connected through a screw thread, and the positioning surface being mutually adapted is opened up in the through-hole of connecting pin, and the positioning surface being mutually adapted will be protected
Sheath ring 6, medium support 7 clamp positioning.
Further, the left end of first outer conductor 4 and the right end of the 4th outer conductor 13 are rotatably connected to swivel nut 1, spiral shell
It is fixedly installed with small snap ring 3 in set 1, small snap ring 3 is located at the left end of the first outer conductor 4 and the right end of the 4th outer conductor 13 opens up
Annular groove in.Swivel nut 1 is fixed on the first outer conductor 4 by small snap ring 3, and swivel nut 1 can rotate freely, for accessing microwave
System.
Preferably, sliding inner conductor 10 and driven magnet steel 9 are adhesively fixed together, and are located at first together with little spring 8
In the interstitial hole of inner conductor 2, and sliding inner conductor 10 can freely horizontally slip in 2 interstitial hole of the first inner conductor, in small bullet
The elastic force effect lower slider inner conductor 10 of spring 8 can be contacted and be connected to the second inner conductor 11.
Driven magnet steel 9 face opposite with active magnet steel 17 is the homopolarity in magnet steel magnetic field, and two kinds of magnet steel are close to each other to certain
Very big repulsion can be generated after distance, is decayed rapidly far from rear repulsion.
Principle explanation:
First outer conductor 4, the second outer conductor 5, third outer conductor 12, is led in the 4th outer conductor 13 and first at protection lantern ring 6
Body 2, medium support 7, sliding inner conductor 10, the second inner conductor 11 constitute a coaxial line transmission cavity, and microwave signal is in transmission cavity
Transmission.
Under the action of like pole is mutually exclusive, active magnet steel 17 can push driven magnet steel 9 to move downward, and make in sliding
Conductor 10 and the second inner conductor 11 disconnect.In the magnetic force thrust of no active magnet steel 17, acted in the elastic force of little spring 8
Under, driven magnet steel 9 can move right, and contact sliding inner conductor 10 with the second inner conductor 11.The left and right fortune of driven magnet steel 9
It is dynamic, and then 10 side-to-side movement of sliding inner conductor being secured to together is pushed, connect sliding inner conductor 10 with the second inner conductor
Touching disconnects, and then completes being switched on or off for radiofrequency signal.
Action relationships explanation, as shown in Figure 2:
Gear sleeve 15 can rotate freely on third outer conductor 12, be threadedly coupled the rotary motion of gear sleeve 15
It is converted into left and right linear movement.Big snap ring 14 is located at the groove of gear sleeve 15, plays position-limiting action, prevents gear sleeve 15 from existing
Position overshoots in moving process.When rotating gear sleeve 15, gear sleeve 15, slip collar 16, big snap ring 14 can be made to overcome greatly
The elastic force side-to-side movement of spring 18.
When the A face contact of gear sleeve 15 and the groove of third outer conductor 12, little spring 8 is to driven magnet steel 9, sliding
The thrust to the right of inner conductor 10 1 makes to slide inner conductor 10 and the full contact of the second inner conductor 11, as shown in Figure 3.It slides at this time
Inner conductor 10 and the second inner conductor 11 completely attach to, then microwave transmission access is connected, can be with microwave transmission signal.
Rotation gear sleeve 15 makes the A of the groove of the big disengaging of snap ring 14 third outer conductor 12 towards left movement, and final
With the B face contact of 12 groove of third outer conductor.
In the process, gear sleeve 15 pushes the bullet that big spring 18 is overcome with slip collar 16, active magnet steel 17 first
Power moves downward.Since there are repulsion, active magnet steel 17 and the magnetic field repulses power of driven magnet steel 9 between the two between homonymous magnetic pole
Push driven magnet steel 9 that the elastic force of little spring 8 is overcome to move downward, and then driven magnet steel 9 drives the sliding being secured to together
Inner conductor 10 moves downward, and sliding inner conductor 10 is finally made to contact and maintain a certain distance with the disconnection of the second inner conductor 11,
As shown in Figure 4.Sliding inner conductor 10 is fully disconnected with the second inner conductor 11 at this time, then microwave transmission access disconnects, microwave signal
It cannot transmit.
The present invention mentions on the basis of based on current ic-type single-pole single-throw(SPST RF switch with RF coaxial adapters
A kind of low loss coaxial line single-pole single-throw(SPST RF switch is gone out, this kind of RF switch is not only able to achieve the conducting of signal and disconnects function
Can, and have the characteristics that low-loss, high-power signal can be transmitted.
It will be appreciated that although an embodiment of the present invention has been shown and described, for the ordinary skill people of this field
For member, it is possible to understand that a variety of changes can be carried out to these embodiments without departing from the principles and spirit of the present invention
Change, modification, replacement and variant, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of low-loss single-pole single-throw(SPST RF switch, which is characterized in that including the first inner conductor (2), the second inner conductor (11)
With third outer conductor (12)；
Through-hole is opened up among the third outer conductor (12), first inner conductor (2) and the second inner conductor (11) are coaxial
It is mounted in the interior bone of third outer conductor (12), wherein one end of the first inner conductor (2) is located at third outer conductor
(12) interior bone left end, one end of the second inner conductor (11) are located at the right end of third outer conductor (12) interior bone；
The right end of first inner conductor (2) opens up blind hole, is disposed with little spring (8), driven magnetic in blind hole from left to right
Steel (9) and sliding inner conductor (10), sliding inner conductor (10) can horizontally slip in blind hole, when sliding into left end in sliding
Conductor (10) is mutually separated with the second inner conductor (11), and inner conductor (10) contacts simultaneously with the second inner conductor (11) when sliding into right end
Connection；
It is provided on third outer conductor (12) active magnet steel (17), active magnet steel (17) can move left and right on third outer conductor (12)
Dynamic, driven magnet steel (9) is the homopolarity in magnet steel magnetic field with active magnet steel (17) opposite face.
2. low-loss single-pole single-throw(SPST RF switch as described in claim 1, which is characterized in that the third outer conductor (12)
Annular groove D is opened up on outer wall along its length, the left end of annular groove D is closed, right-end openings, in annular groove D from left to right successively
Big spring (18), active magnet steel (17) and gear sleeve (15) be set, the gear sleeve (15) and third outer conductor (12)
Outer wall thread connection.
3. low-loss single-pole single-throw(SPST RF switch as claimed in claim 2, which is characterized in that active magnet steel (17) and gear cover
It is provided with slip collar (16) between cylinder (15), the end of third outer conductor (12) opens up annular groove C, big snap ring (14) fixed gear
In the groove of position sleeve (15) and it is located in annular groove C.
4. low-loss single-pole single-throw(SPST RF switch as described in claim 1, which is characterized in that second inner conductor (11)
Left end opens up the compatible connecting hole with sliding inner conductor (10).
5. low-loss single-pole single-throw(SPST RF switch as described in claim 1, which is characterized in that the first inner conductor (2) is by first
Outer conductor (4), the second outer conductor (5), protection lantern ring (6), medium support (7) installation are fixed, and the first inner conductor (2) suit is situated between
Matter support (7), medium support (7) on suit protection lantern ring (6), medium support (7) by the step surface on the first inner conductor (2) limit its
Freedom degree in first inner conductor (2) axial direction, the first outer conductor (4) and the second outer conductor (5) open up through-hole, open up phase in through-hole
The positioning surface being mutually adapted to, the first outer conductor (4) are connected through a screw thread with the second outer conductor (5), and the positioning surface being mutually adapted will be protected
Sheath ring (6), medium support (7) clamp positioning.
6. low-loss single-pole single-throw(SPST RF switch as described in claim 1, which is characterized in that the second inner conductor (11) is by the 4th
Outer conductor (13), protection lantern ring (6), medium support (7) installation are fixed, and suit medium support (7) on second inner conductor (11) is situated between
Matter supports suit protection lantern ring (6) on (7), and medium, which supports (7) and limits it in second by the step surface on the second inner conductor (11), leads
Freedom degree in body (11) axial direction, the 4th outer conductor (13) open up through-hole, and the 4th outer conductor (13) and third outer conductor (12) are logical
Threaded connection is crossed, the positioning surface being mutually adapted is opened up in the through-hole of connecting pin, the positioning surface being mutually adapted will protect lantern ring
(6), medium support (7) clamps positioning.
7. low-loss single-pole single-throw(SPST RF switch as claimed in claim 6, which is characterized in that first outer conductor (4)
The right end of left end and the 4th outer conductor (13) is rotatably connected to swivel nut (1), is fixedly installed in swivel nut (1) small snap ring (3), small
In the annular groove that snap ring (3) is located at the left end of the first outer conductor (4) and the right end of the 4th outer conductor (13) opens up.
8. low-loss single-pole single-throw(SPST RF switch as described in claim 1, which is characterized in that sliding inner conductor (10) with it is driven
Magnet steel (9) is adhesively fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375566.7A CN109560354B (en) | 2018-11-19 | 2018-11-19 | Low-loss single-pole single-throw radio frequency switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375566.7A CN109560354B (en) | 2018-11-19 | 2018-11-19 | Low-loss single-pole single-throw radio frequency switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109560354A true CN109560354A (en) | 2019-04-02 |
| CN109560354B CN109560354B (en) | 2020-12-18 |
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ID=65866558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811375566.7A Active CN109560354B (en) | 2018-11-19 | 2018-11-19 | Low-loss single-pole single-throw radio frequency switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109560354B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724014A (en) * | 1996-04-04 | 1998-03-03 | The Narda Microwave Corporation | Latching RF switch device |
| CN104639117A (en) * | 2014-12-12 | 2015-05-20 | 西北核技术研究所 | Air-insulated switch and fast-rise-time high-voltage square wave generator |
| US20160006145A1 (en) * | 2012-03-19 | 2016-01-07 | Holland Electronics Llc | Shielded and multishielded coaxial connectors |
-
2018
- 2018-11-19 CN CN201811375566.7A patent/CN109560354B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724014A (en) * | 1996-04-04 | 1998-03-03 | The Narda Microwave Corporation | Latching RF switch device |
| US20160006145A1 (en) * | 2012-03-19 | 2016-01-07 | Holland Electronics Llc | Shielded and multishielded coaxial connectors |
| CN104639117A (en) * | 2014-12-12 | 2015-05-20 | 西北核技术研究所 | Air-insulated switch and fast-rise-time high-voltage square wave generator |
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| Publication number | Publication date |
|---|---|
| CN109560354B (en) | 2020-12-18 |
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Address after: 266000 No. 98 Xiangjiang Road, Huangdao District, Qingdao City, Shandong Province Patentee after: CLP kesiyi Technology Co.,Ltd. Address before: 266000 No. 98 Xiangjiang Road, Huangdao District, Qingdao City, Shandong Province Patentee before: CHINA ELECTRONIC TECHNOLOGY INSTRUMENTS Co.,Ltd. |