CN207603601U - A kind of improved ultra-wideband PIN diode single pole multiple throw - Google Patents
A kind of improved ultra-wideband PIN diode single pole multiple throw Download PDFInfo
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- CN207603601U CN207603601U CN201721902041.5U CN201721902041U CN207603601U CN 207603601 U CN207603601 U CN 207603601U CN 201721902041 U CN201721902041 U CN 201721902041U CN 207603601 U CN207603601 U CN 207603601U
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Abstract
A kind of improved ultra-wideband PIN diode single pole multiple throw, the single pole multiple throw includes input module, division component and output precision, input module is connect with division component, division component is connect with output precision, it divides component and includes level-one PIN diodes and level-one output terminal transmission line, level-one PIN diodes are provided with X, level-one output terminal transmission line is provided with X items, the input terminal of X level-one PIN diode and the output terminal of input module connect, and the input terminal of the output terminal of X level-one PIN diode respectively with level-one output terminal transmission line is connect.Modified single pole multiple throw in the utility model can solve the problem of that single pole multiple throw brings too crowded installation, parasitic parameter increase and impedance matching adaptation because 2 branch's way of PIN diodes in parallel is too many in the prior art.
Description
Technical field
The utility model is related to microwave single-pole multi-throw switch field, in particular to a kind of improved ultra-wideband PIN bis-
Pole pipe single pole multiple throw.
Background technology
Microwave switch can be divided into monolithic integrated microwave circuit switch by making form and hybrid microwave integrated circuit switchs.Its
Middle monolithic integrated microwave circuit switch with its is small, light-weight, simple in structure, be easy to make the advantages that and gradually instead of biography
The hybrid microwave integrated circuit switch of system.But due to monolithic integrated microwave circuit switch be difficult to realize high power capacity and it is high every
From degree, traditional hybrid microwave integrated circuit switch has irreplaceable status in some aspects.
Microwave switch is one kind of microwave controller, it is widely used among various microwave systems.Electronic reconnaissance,
The fields such as confrontation and multiple-beam radar, phased-array radar are widely used.Therefore research filter with low insertion loss, high-isolation, broadband, small-sized
Change, the microwave switch of multichannel has practical engineering significance.
But single pole multiple throw of the prior art is illustrated with regard to one point of eight formula single pole multiple throw, is had the disadvantage that：
Defect one：Input signal is influenced, input signal is directly divided into the output of 8 tunnels, all 8 PIN bis- from signal output end
Pole pipe is all exported from a common point；Due to the superposition of 8 PIN diode parasitic parameters, lead to transmission and reflection characteristic in frequency
The high-end deterioration of rate.
Defect two：Switch assembling is influenced, because 8 tunnels to be divided to export from main line 1, PIN diode is excessively crowded, causes short circuit,
Pin is broken.In order to solve the installation of PIN diode, 50 Ohm transmission tracks of input is caused to need to lengthen, impedance matching cannot
Reach best, so causing the electrical characteristics of this design performance serious in high-end deterioration.
Utility model content
The purpose of this utility model is to provide a kind of improved ultra-wideband PIN diode single pole multiple throw, due to
The addition of component is divided, entire single pole multiple throw is enable to shorten the distance between common end transmission line, and reduce parasitism
Parameter improves working frequency and performance.
What the embodiment of the utility model was realized in：
A kind of improved ultra-wideband PIN diode single pole multiple throw, the single pole multiple throw include input module, division
Component and output precision, input module are connect with division component, and division component is coupled with output precision, and division component includes level-one
PIN diode and level-one output terminal transmission line, level-one PIN diode are provided with X, and level-one output terminal transmission line is provided with X items,
The input terminal of X level-one PIN diode and the output terminal of input module connect, the output terminal of X level-one PIN diode respectively with
The input terminal connection of level-one output terminal transmission line.
In the utility model preferred embodiment, above-mentioned output precision includes two level PIN diode and two level output terminal
Transmission line, the input terminal of two level PIN diode are connect with the output terminal of level-one output terminal transmission line, two level output terminal transmission line
Input terminal is connect with the output terminal of two level PIN diode.
In the utility model preferred embodiment, the total number of above-mentioned two level PIN diode is n, and two level output terminal passes
The total number of defeated line is n, and n is more than or equal to 4.
In the utility model preferred embodiment, above-mentioned two level PIN diodes include first group of diode and second group
Diode, the number of first group of diode is identical with the number of second group of diode, and the number of first group of diode is n/X.
In the utility model preferred embodiment, above-mentioned two level output terminal transmission line includes first group of transmission line and second
Group transmission line, the number of first group of transmission line is identical with the number of second group of transmission line, and the number of first group of transmission line is n/X
Item.
In the utility model preferred embodiment, the input terminal of above-mentioned n/X first group of diode with wherein one one
The output terminal connection of grade output terminal transmission line, the output terminal of n/X first group of diode respectively with first group of transmission line of n/X items
Input terminal connects.
In the utility model preferred embodiment, the input pipe and another level-one of above-mentioned n/X second group of diode
The output terminal connection of output terminal transmission line, the output terminal of n/X second group of diode are defeated with second group of transmission line of n/X items respectively
Enter end connection.
In the utility model preferred embodiment, above-mentioned single pole multiple throw is provided with n circuit switching direction.
In the utility model preferred embodiment, above-mentioned input module includes input transmission line, and input transmission line is only set
It is equipped with one.
In the utility model preferred embodiment, above-mentioned input transmission line, level-one output terminal transmission line and two level output
Transmission line is microstrip line.
The advantageous effect of the utility model embodiment is：Single pole multiple throw in the utility model is inputted in signal
Setting division component between end and signal output end, division component first divide n output port one for m level-one output port,
Again by each n/m two level output port of level-one output port division, classification cascade etc. point in this way designs, it is advantageous that：
In the case of constant in summation port, increase transmission common point, make common end transmission line shorter, make the impedance between transmission line
With more preferably, the parasitic parameter of PIN diode weakens under the action of parallel connection, reduces the loss of single pole multiple throw, stablizes
Standing-wave ratio, so as to promote the working frequency of device and electric property；And the division component set, output port are no longer confined to
On one transmission common point, both solved that diode in the prior art is crowded to cause short circuit, the situation of pin fracture also shortens
The total distance of transmission line.
Description of the drawings
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structure diagram of eight throw switch of the utility model embodiment tradition hilted broadsword；
Fig. 2 is the transmission characteristic insertion loss test curve figure of eight throw switch of the utility model embodiment tradition hilted broadsword；
Fig. 3 is the reflection characteristic voltage standing wave ratio test curve figure of eight throw switch of the utility model embodiment tradition hilted broadsword；
Fig. 4 is the structure diagram of eight throw switch of the utility model embodiment modified hilted broadsword；
Fig. 5 is the transmission characteristic insertion loss test curve figure of eight throw switch of the utility model embodiment modified hilted broadsword；
Fig. 6 is the reflection characteristic voltage standing wave ratio test curve of eight throw switch of the utility model embodiment modified hilted broadsword
Figure.
Icon：1- input transmission lines；2-PIN diodes；3- output terminal transmission lines.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of different.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship be based on orientation shown in the drawings or position relationship or
The utility model product using when the orientation usually put or position relationship, be for only for ease of description the utility model and letter
Change description rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that limitation to the utility model.In addition, term " first ", " second ", " third " etc. are only used for area
Divide description, and it is not intended that instruction or hint relative importance.
In addition, the terms such as term " level ", " vertical ", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to represent the structure if " level " only refers to that its direction is more horizontal with respect to for " vertical "
It has to fully horizontally, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can be mechanical connection or electrical connection；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
First embodiment
Eight throw switch of hilted broadsword that single pole multiple throw selecting frequency in the present embodiment is 0.02-18GHz is for example, originally
Single pole multiple throw in embodiment is based on hybrid microwave integrated circuit switch designs.
Fig. 1 is referred to, one point of eight formula single pole multiple throw of the prior art includes an input transmission line 1,8 pipe PIN
Diode 2 and 8 output terminal transmission lines 3, the output terminal of input transmission line 1 are connect with the input terminal of 8 pipe PIN diodes 2,8 pipes
Input terminal of the output terminal of PIN diodes 2 respectively with 8 output terminal transmission lines 3 is connect.
Refer to Fig. 2, Ch1：Channel 1；fb：Frequency；Pd：Signal power；Trc3S12dB Mag4.5dB/Ref 0dB：Window
3 return loss S12 reference values 4.5dB of mouth are per lattice；Mag：Loss test.
Eight throw switch of hilted broadsword of the prior art on ADS softwares is emulated and makes theoretical modeling, is inserted from the transmission characteristic of Fig. 2
Enter loss test curve graph to can be seen that when it is 20MHz to input frequency, the insertion loss value of traditional eight throw switch of hilted broadsword is
9.1780dB；When it is 6GHz to input frequency, the insertion loss value of traditional eight throw switch of hilted broadsword is 2.3391dB；When input frequency
During for 12GHz, the insertion loss of traditional eight throw switch of hilted broadsword to value 4.1059dB；When it is 18GHz to input frequency, traditional hilted broadsword
The insertion loss of eight throw switches is to value 7.57302dB；When inputting frequency more than 18GHz, the insertion of traditional eight throw switch of hilted broadsword
Loss value drastically declines.Thus, it is possible to, it is evident that with input frequency increase, the fluctuating range of insertion loss value is apparent,
Transmission characteristic deteriorates.
Refer to Fig. 3, SWR：Voltage standing wave ratio is tested.
Eight throw switch of hilted broadsword of the prior art on ADS softwares is emulated and makes theoretical modeling, from the reflection characteristic electricity of Fig. 3
Pressure standing-wave ratio test curve figure can be seen that when it is 20MHz to input frequency, the voltage standing wave(VSW) ratio of traditional eight throw switch of hilted broadsword
For 2.8474U；When it is 6GHz to input frequency, the voltage standing wave(VSW) ratio of traditional eight throw switch of hilted broadsword is 1.2300U；When input frequency
When rate is 12GHz, the voltage standing wave(VSW) ratio of traditional eight throw switch of hilted broadsword is 1.4419U；When it is 18GHz to input frequency, tradition
The voltage standing wave(VSW) ratio of eight throw switch of hilted broadsword is 2.8773U.As seen from Figure 3 with the increase of input frequency, voltage standing wave(VSW)
The reflection characteristic of ratio drastically deteriorates.
Since 8 pipe PIN diodes 2 is all are connected in same input transmission line 1 it can be seen from Fig. 1-Fig. 3, cause
The parasitic parameter superposition of PIN diodes 2, so as to which the transmission characteristic of eight throw switch of hilted broadsword and reflection characteristic be made to be in unstable shape
State；And the output terminal of 8 pipe PIN diodes 2 is connected with the input terminal of input transmission line 1, causes PIN diodes 2 excessively crowded,
It may result in short circuit, pin fracture.If solving 2 excessively crowded situation of PIN diodes, and increase PIN diodes 2 and defeated
Enter the transmission line between transmission line 1, and impedance matching can be prevented from reaching best, also to will appear the electricity of eight throw switch of hilted broadsword
Characteristic is in high-end deterioration serious situation.
Fig. 4 is referred to, the shortcomings that for traditional eight throw switch of hilted broadsword, present embodiments provides a kind of improved ultra-wideband
Eight throw switch of PIN diode hilted broadsword, eight throw switch of hilted broadsword include input transmission line 1,22,2 level-ones of pipe level-one PIN diodes
Output terminal transmission line 3,8 pipe two level PIN diodes 2 and 8 two level output terminal transmission lines 3, the output terminal of input transmission line 1 and 2
The input terminal connection of pipe level-one PIN diodes 2, the output terminal of 2 pipe level-one PIN diodes 2 transmit respectively with 2 level-one output terminals
The input terminal connection of line 3, wherein the input terminal of the output terminal of level-one output terminal transmission line 3 and 4 pipe two level PIN diodes 2
Connection, the output terminal of another level-one output terminal transmission line 3 are connect with the input terminal of other 4 pipe two level PIN diodes 2,8 pipes two
The output terminal of grade PIN diodes 2 is connect respectively with 8 two level output terminal transmission lines 3.The present embodiment is in the hilted broadsword eight of the prior art
2 pipe PIN diodes 2 and 2 output terminal transmission lines 3 have been newly increased in throw switch.Input transmission line 1 is divided into two, then two points
It is eight, had both ensure that the distance between PIN diodes 2 in this way, make assembling mutually unaffected, processing is facilitated to assemble；And make
Transmission line at common end is shorter, makes impedance match more preferably.
Fig. 5 is referred to, eight throw switch of hilted broadsword that classification cascade etc. point design is utilized in the present embodiment is imitated on ADS softwares
Theoretical modeling really is made, can be seen that from the transmission characteristic insertion loss test curve figure of Fig. 5 when it is 20MHz to input frequency,
The insertion loss value of eight throw switch of modified hilted broadsword is 2.0698dB；When it is 6GHz to input frequency, modified hilted broadsword eight is thrown out
The insertion loss value of pass is 2.6253dB；When it is 12GHz to input frequency, the insertion loss value of eight throw switch of modified hilted broadsword is
4.9273dB；When it is 18GHz to input frequency, the insertion loss value of eight throw switch of modified hilted broadsword is 5.4219dB；Work as input
When frequency is more than 18GHz, the insertion loss value of eight throw switch of modified hilted broadsword declines slowly.It can thus be seen that with input
The increase of frequency, the fluctuating range of insertion loss value is smaller, and when it is 18GHz to input frequency, and what traditional hilted broadsword eight was thrown inserts
It is about 7.57dB to enter loss value, and follow-on insertion loss value is about 5.42dB, although increasing 2 pipe level-one PIN, bis- poles more
Pipe, but loss is improved, and can also have extension at higher frequency 19GHz, and follow-on transmission characteristic is improved.
Fig. 6 is referred to, eight throw switch of hilted broadsword that classification cascade etc. point design is utilized in the present embodiment is imitated on ADS softwares
Theoretical modeling really is made, can be seen that from the reflection characteristic voltage standing wave ratio test curve figure of Fig. 6 when input frequency is 20MHz
When, the voltage standing wave(VSW) ratio of eight throw switch of modified hilted broadsword is 1.3283U；When it is 6GHz to input frequency, modified hilted broadsword eight
The voltage standing wave(VSW) ratio of throw switch is 1.5610U；When it is 12GHz to input frequency, the voltage of eight throw switch of modified hilted broadsword is stayed
Bobbi value is 1.1819U；When it is 18GHz to input frequency, the voltage standing wave(VSW) ratio of eight throw switch of modified hilted broadsword is
1.1883U.As seen from Figure 6, with the increase of input frequency, the fluctuation of voltage standing wave ratio is smaller, voltage standing wave ratio
Whole section of standing wave curve of 0.02GHZ and 19GHZ is all not above 1.8：1, working frequency is less than in 18GHz full frequency band voltage standing wave ratioes
1.8：1, level of impedance match improves, and changes electric property of such device in higher frequency, improves the work frequency of product
Rate and electric property improve the performance of ultra wide band PIN diode single pole multiple throw.
In conclusion using novel hierarchical cascade etc. point design, can solve in the prior art single pole multiple throw because simultaneously
The problem of it is too many to join PIN 2 branch's ways of diode, too crowded installation, parasitic parameter increase and impedance matching is brought to be adapted to.
Present specification describes the examples of the embodiment of the utility model, are not meant to that these embodiments illustrate and describe
The utility model is possible to form.It should be understood that the embodiment in specification can be implemented with a variety of alternative forms.Attached drawing without
It needs drawn to scale；Some features can be zoomed in or out to show the details of particular elements.Disclosed concrete structure and function are thin
Section is not taken by way of limitation explanation, and those skilled in the art is only instructed to implement the representative base of the utility model in a variety of forms
Plinth.It it will be understood to one skilled in the art that can be with one or more with reference to multiple features that either figure illustrates and describes
The feature illustrated in other attached drawings combines to form the embodiment for not yet explicitly illustrating or describing.The assemblage characteristic offer of explanation is used for
The representative embodiment of typical case.However, the multiple combinations of the feature consistent with the introduction of the utility model and modification can roots
According to needing for specific application or implementation.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of improved ultra-wideband PIN diode single pole multiple throw, which is characterized in that the single pole multiple throw includes defeated
Enter component, division component and output precision, the input module is connect with the division component, it is described divide component with it is described defeated
Go out component connection, the division component includes X level-one PIN diode and X level-one output terminal transmission line, the X level-one
The input terminal of PIN diode is connect with the output terminal of the input module, the output terminal difference of the X level-one PIN diode
It is connect with the input terminal of the level-one output terminal transmission line.
2. improved ultra-wideband PIN diode single pole multiple throw according to claim 1, which is characterized in that described defeated
Go out component and include two level PIN diode and two level output terminal transmission line, input terminal and the level-one of the two level PIN diode
The output terminal connection of output terminal transmission line, the input terminal of the two level output terminal transmission line are defeated with the two level PIN diode
Outlet connects.
3. improved ultra-wideband PIN diode single pole multiple throw according to claim 2, which is characterized in that described two
The total number of grade PIN diode is n, and the total number of the two level output terminal transmission line is n, and the n is more than or equal to 4.
4. improved ultra-wideband PIN diode single pole multiple throw according to claim 2, which is characterized in that described two
Grade PIN diode includes two pole PIN diode of m groups, and the number of each group two level PIN diode is identical, each group two level PIN diode
Number be n/X.
5. improved ultra-wideband PIN diode single pole multiple throw according to claim 2, which is characterized in that described two
Grade output terminal transmission line includes m group two level output terminal transmission lines, and the number of each group two level output terminal transmission line is identical, each group two level
The number of output terminal transmission line is n/X items.
6. improved ultra-wideband PIN diode single pole multiple throw according to claim 5, which is characterized in that n/X institute
The input terminal for stating first group of diode is connect with the output terminal of the wherein one level-one output terminal transmission line, n/X described
Input terminal of the output terminal of one group of diode respectively with first group of transmission line described in n/X items is connect.
7. improved ultra-wideband PIN diode single pole multiple throw according to claim 5, which is characterized in that the n/X
The input pipe of second group of diode is connect with the output terminal of another level-one output terminal transmission line, described in n/X
Input terminal of the output terminal of second group of diode respectively with second group of transmission line described in n/X items is connect.
8. improved ultra-wideband PIN diode single pole multiple throw according to claim 1, which is characterized in that the list
Knife multithrow switch is provided with n circuit switching direction.
9. improved ultra-wideband PIN diode single pole multiple throw according to claim 1, which is characterized in that described defeated
Enter component and include input transmission line, the input transmission line is only provided with one.
10. improved ultra-wideband PIN diode single pole multiple throw according to claim 1, which is characterized in that described defeated
It is microstrip line to enter transmission line, level-one output terminal transmission line and two level output transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721902041.5U CN207603601U (en) | 2017-12-29 | 2017-12-29 | A kind of improved ultra-wideband PIN diode single pole multiple throw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721902041.5U CN207603601U (en) | 2017-12-29 | 2017-12-29 | A kind of improved ultra-wideband PIN diode single pole multiple throw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207603601U true CN207603601U (en) | 2018-07-10 |
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ID=62769388
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721902041.5U Active CN207603601U (en) | 2017-12-29 | 2017-12-29 | A kind of improved ultra-wideband PIN diode single pole multiple throw |
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| Country | Link |
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| CN (1) | CN207603601U (en) |
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2017
- 2017-12-29 CN CN201721902041.5U patent/CN207603601U/en active Active
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