CN107887674A - One kind passage waveguide R type microwave switch undesire frequency structures - Google Patents
One kind passage waveguide R type microwave switch undesire frequency structures Download PDFInfo
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- CN107887674A CN107887674A CN201710911136.1A CN201710911136A CN107887674A CN 107887674 A CN107887674 A CN 107887674A CN 201710911136 A CN201710911136 A CN 201710911136A CN 107887674 A CN107887674 A CN 107887674A
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- port
- waveguide
- radio frequency
- passage
- curved passage
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Classifications
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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
- H01P1/122—Waveguide switches
Abstract
The invention discloses one kind to elapse waveguide R type microwave switch undesire frequency structures, including：Radio frequency base, radio frequency rotating shaft and multiple compensation holes；Radio frequency rotating shaft is arranged on the center of the radio frequency base；Multiple compensation holes are separately positioned on radio frequency base, and multiple compensation holes are tangent with radio frequency rotating shaft respectively；Multiple waveguide ports are provided with radio frequency base, multiple compensation holes are respectively between two adjacent waveguide ports.The present invention utilizes the electromagnetic nature for elapsing waveguide R type microwave switches, compensation hole is added on radio frequency base, so that the electric size of idle passage lengthens, resonant frequency reduces, so that resonant frequency removes the working frequency of waveguide switch, eliminate each passage in waveguide switch and be in resonance caused by idle state influence is brought on radio frequency transmission.
Description
Technical field
The invention belongs to microwave passive technical field, more particularly to a kind of passage waveguide R type microwave switch undesire frequency knots
Structure.
Background technology
Passage waveguide R type microwave switches there is the characteristics of working condition is more, be Satellite Payloads key components and parts it
One.Elapsing the major function of waveguide R type microwave switches is：Radio-frequency channel is switched over, by the hardware of fixed qty by opening
Put the backup of row ring into, realize more connection status.For example, when fractional hardware breaks down, waveguide switch work can be passed through
Make the switching of state, backup hardware in system is substituted into faulty hardware, improves the reliability of whole star.
As communication, requirement of the aeronautical satellite to radio-frequency unit volume and weight are constantly lifted in recent years, to waveguide switch
The requirement of volume and weight also significantly improve, this is just brought how under the requirement of effective volume and weight, and realization is penetrated
This optimal key issue of frequency index.
Passage waveguide R types microwave switch has 4 working conditions, when the curved channels operation of passage waveguide R type microwave switches
When, straight channel is in idle state, and now the resonant frequency of straight channel can influence to the radio frequency band of curved passage；Similarly, lead directly to
When road works, curved passage is in idle state, and the resonant frequency of curved passage equally can bring influence to the radio frequency transmission of straight channel.
The content of the invention
The technology of the present invention solves problem：Overcome the deficiencies in the prior art, there is provided one kind passage waveguide R type microwave switches are posted
Raw frequency structure, resonance caused by idle state is in eliminate each passage in waveguide switch influence is brought on radio frequency transmission.
In order to solve the above-mentioned technical problem, the invention discloses one kind to elapse waveguide R type microwave switch undesire frequency structures,
Including：Radio frequency base, radio frequency rotating shaft and multiple compensation holes；
Radio frequency rotating shaft is arranged on the center of the radio frequency base；
Multiple compensation holes are separately positioned on radio frequency base, and multiple compensation holes are tangent with radio frequency rotating shaft respectively；
Be provided with multiple waveguide ports on radio frequency base, multiple compensation holes respectively positioned at two adjacent waveguide ports it
Between.
In above-mentioned passage waveguide R types microwave switch undesire frequency structure, the multiple compensation hole, including：First compensation
Hole, the second compensation hole, the 3rd compensation hole and the 4th compensation hole；The multiple waveguide port, including：First port, second port,
3rd port and the 4th port；
The line and the line of second port and the 4th port of first port and the 3rd port intersect vertically；
First compensation hole, the second compensation hole, the 3rd compensation hole and the 4th compensation hole are located at two adjacent waveguide ends respectively
45 ° of angular positions of mouth.
In above-mentioned passage waveguide R types microwave switch undesire frequency structure, it is provided with the radio frequency rotating shaft：First is curved logical
Road, the second curved passage and a straight channel；
When straight channel is in idle state, straight channel connects with the two of which compensation hole in the multiple compensation hole,
The electric size of straight channel lengthens；
When the first curved passage and the second curved passage are in idle state, the first curved passage and the second curved passage respectively with institute
The two of which compensation hole connection in multiple compensation holes is stated, the first curved passage and the second curved logical electric size lengthen.
In above-mentioned passage waveguide R types microwave switch undesire frequency structure,
When straight channel is in idle state, first port is connected with the 4th port by the first curved passage, second port
Connected with the 3rd port by the second curved passage, the first curved passage and the second curved passage are in running order；Or, first port and
Second port is connected by the first curved passage, and the 3rd port connect with the 4th port by the second curved passage, the first curved passage with
Second curved passage is in running order；
When the first curved passage and the second curved passage are in idle state, second port and the 4th port are connected by straight channel
Logical, straight channel is in running order；Or, first port is connected with the 3rd port by straight channel, straight channel is in running order.
In above-mentioned passage waveguide R types microwave switch undesire frequency structure, length L, the width a and h points of height in hole are compensated
It is not：L=4mm, a=5.6mm, h=19.05mm.
In above-mentioned passage waveguide R types microwave switch undesire frequency structure, compensate hole is shaped as appointing in following shape
Meaning is a kind of：Semicircle, rectangle, polygon and circle.
The present invention has advantages below：
(1) the invention discloses one kind to elapse waveguide R type microwave switch undesire frequency structures, and using elapsing, waveguide R types are micro-
The electromagnetic nature of ripple switch, compensation hole is added on radio frequency base so that the electric size of idle passage lengthens, resonant frequency drop
It is low, so that resonant frequency removes the working frequency of waveguide switch, it is effectively improved waveguide switch isolation.
(2) present invention will not increase assembling using setting the structure in compensation hole to realize the transfer of resonance on radio frequency base
Difficulty, extra parts will not be also introduced, while the weight reduction of switch can also be made, improve design efficiency.
(3) passage waveguide R type microwave switch undesire frequency structures of the present invention, being capable of effective broadening waveguide switch
Working frequency, and structure can realize that form is simple, easy processing, will not bring influence to other performance indications of waveguide switch.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram for elapsing waveguide R type microwave switch undesire frequency structures in the embodiment of the present invention；
Fig. 2 is a kind of working state schematic representation for elapsing waveguide R type microwave switches in the embodiment of the present invention；
Fig. 3 is a kind of structural representation for compensating hole in the embodiment of the present invention；
Fig. 4 is a kind of conventional waveguide switch isolation degree simulation result schematic diagram in the embodiment of the present invention；
Fig. 5 is a kind of waveguide switch isolation simulation result schematic diagram added behind compensation hole in the embodiment of the present invention.
Embodiment
It is public to the present invention below in conjunction with accompanying drawing to make the object, technical solutions and advantages of the present invention clearer
Embodiment is described in further detail.
Passage waveguide R type microwave switches belong to mechanical waveguide switch, mainly by control section, drive part and radio-frequency part
It is grouped into.Wherein, radio frequency part mainly includes：Radio frequency base and radio frequency rotating shaft, radio frequency rotating shaft under the drive of motor
Rotated on radio frequency base, so as to realize the switching of on off state.The present invention is special using the electromagnetic field for elapsing waveguide R type microwave switches
Property, compensation hole is added on radio frequency base so that the electric size of idle passage lengthens, and resonant frequency reduces, so that resonance frequency
Rate removes the working frequency of waveguide switch.
Reference picture 1, show a kind of signal for elapsing waveguide R type microwave switch undesire frequency structures in the embodiment of the present invention
Figure.In the present embodiment, the passage waveguide R type microwave switch undesire frequency structures, including：Radio frequency base 1, radio frequency rotating shaft 2
With multiple compensation holes 3.Wherein, radio frequency rotating shaft is arranged on the center of the radio frequency base；Multiple compensation holes are separately positioned on radio frequency
On base, multiple compensation holes are tangent with radio frequency rotating shaft respectively；Multiple waveguide ports 4, multiple compensation holes are provided with radio frequency base
Respectively between two adjacent waveguide ports.
In the preferred embodiment of the present invention, the multiple compensation hole can specifically include：First compensation hole 301, the
Two compensation holes the 302, the 3rd compensate hole 303 and the 4th and compensate hole 304；The multiple waveguide port can specifically include：First end
Mouth 401, second port 402, the 3rd port 403 and the 4th port 404.
, wherein it is desired to explanation, first port 401, second port 402, the 3rd port 403 and the 4th port 404
Specific port type determines according to the virtual condition of waveguide switch, when radio frequency rotating shaft, input port, output port, isolated port
Concept can change.Wherein, first port, second port, the 3rd port and the 4th port can be input port, output
Any of port and isolated port.Preferably, input will can be called by two ports of straight (curved) channel conductive
Mouth and output port, two ports not turned on then are called isolated port.
Such as Fig. 1, the line and the line of second port and the 4th port of first port and the 3rd port intersect vertically；First
Compensate 45 ° of angle positions that hole, the second compensation hole, the 3rd compensation hole and the 4th compensation hole are located at two adjacent waveguide ports respectively
Put.It is sequentially located at for example, the first compensation hole 301, second compensates the compensation hole 303 and the 4th of hole the 302, the 3rd compensation hole 304：First
45 ° of angular positions of port 401 and second port 402,45 ° of angular positions, three of the port 403 of second port 402 and the 3rd
45 ° of angular positions of the port 404 of port 403 and the 4th and the 4th port 404 and 45 ° of angular positions of first port 401.
In the preferred embodiment of the present invention, it is provided with the radio frequency rotating shaft：First curved passage 201, second is curved logical
The straight channel 203 of road 202 and one.
Reference picture 2, show a kind of working state schematic representation for elapsing waveguide R type microwave switches in the embodiment of the present invention.
Wherein, the 1st and the 3rd working condition represents that straight channel be in idle state, the 2nd and the 4th working condition represent the first curved passage with
Second curved passage is in idle state.
Such as Fig. 2, when straight channel is in idle state (the 1st and the 3rd working condition), first port and the 4th port pass through
First curved passage connection, second port is connected with the 3rd port by the second curved passage, at the first curved passage and the second curved passage
In working condition (the 1st working condition)；Or, first port is connected with second port by the first curved passage, the 3rd port and
Four ports are connected by the second curved passage, and the first curved passage and the second curved passage are in running order (the 3rd working condition).When
When one curved passage and the second curved passage are in idle state (the 2nd and the 4th working condition), second port and the 4th port pass through straight
Passage connects, and straight channel is in running order (the 2nd working condition)；Or, first port is connected with the 3rd port by straight channel,
Straight channel is in running order (the 4th working condition).
Preferably, when straight channel is in idle state, straight channel compensates with the two of which in the multiple compensation hole
Hole connects, and the electric size of straight channel lengthens, that is, when curved channels operation, compensation hole causes the electric size of straight channel to lengthen, humorous
Vibration frequency is toward low shifting.When the first curved passage and the second curved passage are in idle state, the first curved passage and the second curved passage point
Not connected with the two of which compensation hole in the multiple compensation hole, the first curved passage and the second curved logical electric size lengthen,
That is, when straight channel works, compensation hole causes the electric size of curved passage to lengthen, and resonant frequency is toward low shifting.
Such as：
In 1 working condition, straight channel 203 can compensate hole 303 with the first compensation hole 301 and the 3rd and connect, and lead directly to
The electric size in road 203 lengthens.
In 3 working condition, straight channel 203 can compensate hole 304 with the second compensation hole 302 and the 4th and connect, and lead directly to
The electric size in road 203 lengthens.
In 2 working condition, the first curved passage 201 can compensate hole 304 with the first compensation hole 301 and the 4th and connect,
Second curved passage 202 can compensate hole 303 with the second compensation hole 302 and the 3rd and connect, now, the first curved passage 201 and second
Curved logical 202 electric size lengthens.
In 4 working condition, the first curved passage 201 can compensate hole 302 with the first compensation hole 301 and second and connect,
Second curved passage 202 can compensate hole 304 with the 3rd compensation hole 303 and the 4th and connect, now, the first curved passage 201 and second
Curved logical 202 electric size lengthens.
In the preferred embodiment of the present invention, reference picture 3, a kind of structure for compensating hole in the embodiment of the present invention is shown
Schematic diagram.Such as Fig. 3, the shape in the compensation hole can with but be not limited only to as any one in following shape：Semicircle, square
Shape, polygon and circle.
In the preferred embodiment of the present invention, compensate hole length L, width a and height can with but be not limited only to for：L
=4mm, a=5.6mm, h=19.05mm.
In the preferred embodiment of the present invention, added before and after compensation hole and contrasted with straight channel, pushed away to of the present invention
Waveguide R type microwave switch undesire frequency structures are moved to illustrate.
Wherein, the radio frequency shaft diameter of former BJ120 waveguide switches is 22mm；Table 1, it is that waveguide switch is straight before adding compensation hole
Mode of resonance corresponding to passage illustrates table；Table 2, it is that mode of resonance corresponding to waveguide Switch Cut-through road is illustrated after adding compensation hole
Table.
Table 1
Table 2
In the present embodiment, when curved channels operation, the resonant frequency of straight channel can be brought to the radiofrequency characteristicses of curved passage
Influence.Before adding compensation hole, the resonant frequencies of the TE102 patterns for the straight channel being calculated as shown in table 1 (remaining pattern it is humorous
Vibration frequency is not considered in the working frequency range of BJ120 waveguides)；The TE102 for the straight channel being calculated is added behind compensation hole
The resonant frequency of pattern is as shown in table 2 (for remaining pattern because resonant frequency factor of influence is different, changing rule is different)；It can be seen that
After adding compensation hole, the resonant frequency of the TE102 patterns of straight channel reduces.In addition, waveguide switch radio-frequency transmission channels are 1/4
The form of wavelength impedance conversion, structure of the present invention are added on radio frequency base, transmission channel not influenceed, using the knot
Structure can be by the resonant frequency of radio frequency rotating shaft inoperative passage toward low shifting, and does not influence setting for waveguide switch other modules of inside
Meter, the design of drive mechanism can maintain original design, the influence to other modules can be minimized.
, wherein it is desired to explanation, when compensating the length L increases in hole, frequency gradually toward low shifting, can compensate hole length L,
Width a and height h can be set according to actual conditions, and the present embodiment is not restricted to this.In a preferred embodiment of the present invention
In, passage waveguide R type microwave switch undesire frequency structures of the present invention are applied in waveguide switch, emulation and calculating knot
Fruit is as shown in Figure 4 and Figure 5 (S13 represents that first port and the 3rd port do not turn on).Wherein, Fig. 4, the embodiment of the present invention is shown
Middle a kind of conventional waveguide switch isolation degree simulation result schematic diagram, it is seen then that the undesire frequency of conventional waveguide switch is in 13.51GHz
Near.Fig. 5, a kind of waveguide switch isolation simulation result schematic diagram added behind compensation hole in the embodiment of the present invention is shown,
It can be seen that after adding compensation hole, the undesire frequency of waveguide switch, which has pushed away, to be had been moved near 12.5GHz,
Front and rear contrast effect is it is obvious that can make waveguide switch working frequency broadening 1GHz or so.
As it was previously stated, before and after compensation hole is added, the diameter of radio frequency rotating shaft does not change, so as to changer drive system not
Need to do any change.Increase radio frequency shaft diameter can make resonant frequency move on to same position, but radio frequency shaft diameter meeting
Increase is a lot, causes the rotary inertia of radio frequency rotating shaft increase, can so bring drive system further adjustment can be only achieved with
Former shaft diameter identical index.Change of the adjustment comprising stepper motor and the change of bearing of drive system.The present invention adopts
It is the change of radio frequency understructure with structure, does not increase extra material, radio frequency shaft diameter does not change, without to driving
Mechanism carries out any change, greatly enhances design efficiency.
In summary, the invention discloses one kind to elapse waveguide R type microwave switch undesire frequency structures, using elapsing waveguide
The electromagnetic nature of R type microwave switches, compensation hole is added on radio frequency base so that the electric size of idle passage lengthens, resonance
Frequency reduces, so that resonant frequency removes the working frequency of waveguide switch, is effectively improved waveguide switch isolation.
Secondly, the present invention will not increase dress using setting the structure in compensation hole to realize the transfer of resonance on radio frequency base
With difficulty, extra parts will not be also introduced, while the weight reduction of switch can also be made, improve design efficiency.
In addition, passage waveguide R type microwave switch undesire frequency structures of the present invention, being capable of effective broadening waveguide switch
Working frequency, and structure can realize that form is simple, easy processing, will not bring shadow to other performance indications of waveguide switch
Ring.
Each embodiment in this explanation is described by the way of progressive, what each embodiment stressed be and its
The difference of his embodiment, between each embodiment identical similar part mutually referring to.
It is described above, it is only the optimal embodiment of the present invention, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.
The content not being described in detail in description of the invention belongs to the known technology of professional and technical personnel in the field.
Claims (6)
1. one kind passage waveguide R type microwave switch undesire frequency structures, it is characterised in that including：Radio frequency base, radio frequency rotating shaft and
Multiple compensation holes；
Radio frequency rotating shaft is arranged on the center of the radio frequency base；
Multiple compensation holes are separately positioned on radio frequency base, and multiple compensation holes are tangent with radio frequency rotating shaft respectively；
Multiple waveguide ports are provided with radio frequency base, multiple compensation holes are respectively between two adjacent waveguide ports.
2. passage waveguide R type microwave switch undesire frequency structures according to claim 1, it is characterised in that the multiple
Hole is compensated, including：First compensation hole, the second compensation hole, the 3rd compensation hole and the 4th compensation hole；The multiple waveguide port, bag
Include：First port, second port, the 3rd port and the 4th port；
The line and the line of second port and the 4th port of first port and the 3rd port intersect vertically；
First compensation hole, the second compensation hole, the 3rd compensation hole and the 4th compensation hole are respectively positioned at two adjacent waveguide ports
45 ° of angular positions.
3. passage waveguide R type microwave switch undesire frequency structures according to claim 2, it is characterised in that the radio frequency
It is provided with rotating shaft：First curved passage, the second curved passage and a straight channel；
When straight channel is in idle state, straight channel connects with the two of which compensation hole in the multiple compensation hole, leads directly to
The electric size in road lengthens；
When the first curved passage and the second curved passage are in idle state, the first curved passage and the second curved passage respectively with it is described more
Two of which compensation hole connection in individual compensation hole, the first curved passage and the second curved logical electric size lengthen.
4. passage waveguide R type microwave switch undesire frequency structures according to claim 3, it is characterised in that
When straight channel is in idle state, first port is connected with the 4th port by the first curved passage, second port and
Three ports are connected by the second curved passage, and the first curved passage and the second curved passage are in running order；Or, first port and second
Port is connected by the first curved passage, and the 3rd port is connected with the 4th port by the second curved passage, the first curved passage and second
Curved passage is in running order；
When the first curved passage and the second curved passage are in idle state, second port is connected with the 4th port by straight channel,
Straight channel is in running order；Or, first port is connected with the 3rd port by straight channel, straight channel is in running order.
5. passage waveguide R type microwave switch undesire frequency structures according to claim 1, it is characterised in that compensate hole
Length L, width a and respective heights h are：L=4mm, a=5.6mm, h=19.05mm.
6. passage waveguide R type microwave switch undesire frequency structures according to claim 1, it is characterised in that compensate hole
It is shaped as any one in following shape：Semicircle, rectangle, polygon and circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710911136.1A CN107887674A (en) | 2017-09-29 | 2017-09-29 | One kind passage waveguide R type microwave switch undesire frequency structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710911136.1A CN107887674A (en) | 2017-09-29 | 2017-09-29 | One kind passage waveguide R type microwave switch undesire frequency structures |
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| Publication Number | Publication Date |
|---|---|
| CN107887674A true CN107887674A (en) | 2018-04-06 |
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ID=61781097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710911136.1A Pending CN107887674A (en) | 2017-09-29 | 2017-09-29 | One kind passage waveguide R type microwave switch undesire frequency structures |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2492717A1 (en) * | 2002-07-11 | 2004-01-22 | Tesat-Spacecom Gmbh & Co. Kg | R switch |
| US20050190010A1 (en) * | 2004-02-27 | 2005-09-01 | Com Dev Ltd. | Microwave switch housing assembly |
| CN105609900A (en) * | 2015-12-23 | 2016-05-25 | 中国航天时代电子公司 | Miniature multi-channel waveguide switch |
-
2017
- 2017-09-29 CN CN201710911136.1A patent/CN107887674A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2492717A1 (en) * | 2002-07-11 | 2004-01-22 | Tesat-Spacecom Gmbh & Co. Kg | R switch |
| US20050190010A1 (en) * | 2004-02-27 | 2005-09-01 | Com Dev Ltd. | Microwave switch housing assembly |
| CN105609900A (en) * | 2015-12-23 | 2016-05-25 | 中国航天时代电子公司 | Miniature multi-channel waveguide switch |
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Application publication date: 20180406 |