CN106788308A - PIN diode and varactor mating type bounce frequency filter - Google Patents
PIN diode and varactor mating type bounce frequency filter Download PDFInfo
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- CN106788308A CN106788308A CN201710037756.7A CN201710037756A CN106788308A CN 106788308 A CN106788308 A CN 106788308A CN 201710037756 A CN201710037756 A CN 201710037756A CN 106788308 A CN106788308 A CN 106788308A
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- 230000013011 mating Effects 0.000 title claims abstract description 21
- 239000003990 capacitor Substances 0.000 claims abstract description 28
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 claims description 5
- 238000003491 array Methods 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229930185094 capisterone Natural products 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005498 jet Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H5/00—One-port networks comprising only passive electrical elements as network components
- H03H5/12—One-port networks comprising only passive electrical elements as network components with at least one voltage- or current-dependent element
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H2210/00—Indexing scheme relating to details of tunable filters
- H03H2210/02—Variable filter component
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Abstract
The present invention provides a kind of PIN diode and varactor mating type bounce frequency filter, including matching network one, resonant inductance one, switched capacitor array one, capister group one, coupler, capister group two, switched capacitor array two, resonant inductance two and the matching network two being sequentially connected；The matching network one is connected with rf inputs, and matching network two is connected with RF output end；Also include varactor drive circuit, PIN diode drive circuit, and the digital control circuit being connected with varactor drive circuit and PIN diode drive circuit respectively；Switched capacitor array one and switched capacitor array two are composed in parallel by the PIN diode unit for including electric capacity more than two；Varactor group one and varactor group two are connected composition with peripheral circuit by varactor.This hair reduces the required precision to PIN diode cell capacitance, it is to avoid need to select the problem for replacing electric capacity.
Description
Technical field
The present invention relates to technical field of electronic communication, more specifically to a kind of PIN diode and varactor knot
Mould assembly bounce frequency filter.
Background technology
On the basis of mode of resonance bandpass filter, bandpass filter is changed by the change to resonant inductance or electric capacity
Working frequency be exactly common tunable bandpass filters.It is exactly the frequency hopping filter of Common definitions if tuning can quickly be changed
Ripple device.Bounce frequency filter can change good suppression out of band signal simultaneously because of it with working frequency, therefore need quickly to change work
It is used widely in working frequency, the military communication of adaptation complex electromagnetic environment.
At present, bounce frequency filter is generally all to realize that working frequency is tuned by changing the electric capacity in bandpass filter, typically
Common two kinds of implementations：One is to realize tunable capacitor using varactor, and this form can be small with size, but because makes
Big voltage regulation limits are needed with varactor to realize the wide variation of tunable capacitor, and voltage it is low when natural power
Ability is weak, therefore is typically only capable to be operated in several below dBm.Two is to be used as switching capacity by PIN diode to realize tuning.It is logical
The bounce frequency filter for changing the modes such as PIN diode species, back-pressure height and heat-removal modalities to realize large, medium and small power capability is crossed,
Therefore using more extensive.
(1W is not damaged the small bounce frequency filter of PIN casts the most frequently used at present, can generally be worked to the uncompressed classes of 20dBm
Type) requirement that size is small, not only cause pin diode switch capacitance group number few and symmetrically electric to capacitance accuracy and both sides
The paired matching requirement held is high, not so can tune poor less than desired frequency or index.Therefore the PIN cast jetes commonly used
Frequency wave filter needs to select high accuracy pairing electric capacity in advance, while it may also be desirable to change benefit electric capacity during debugging, is managed using this PIN
The small bounce frequency filter of type not only reduces reliability, and causes that scheduling and planning is cumbersome.
The content of the invention
It is an object of the invention to overcome shortcoming of the prior art with deficiency, there is provided a kind of PIN diode and transfiguration two
Pole pipe mating type bounce frequency filter, the bounce frequency filter may be implemented in by the way of PIN diode is combined with varactor
In the case that the capacitance of PIN diode unit has deviation, realize electric capacity continuously adjustabe to compensate by varactor
Capacitance deviation, so as to reduce the required precision to PIN diode cell capacitance, it is to avoid need to select the problem for replacing electric capacity.
Another object of the present invention provides a kind of PIN diode for improving power capability and is filtered with varactor mating type frequency hopping
Device.
In order to achieve the above object, the technical scheme is that：A kind of PIN diode and transfiguration two
Pole pipe mating type bounce frequency filter, is connected with rf inputs and RF output end respectively, it is characterised in that：Including being sequentially connected
Matching network one, resonant inductance one, switched capacitor array one, capister group one, coupler, capister group two,
Switched capacitor array two, resonant inductance two and matching network two；The matching network one is connected with rf inputs, matching network
Two are connected with RF output end；Also include varactor drive circuit, PIN diode drive circuit, and respectively with transfiguration
Diode drive circuit and the digital control circuit of PIN diode drive circuit connection；The varactor drive circuit point
It is not connected with capister group one and capister group two；The PIN diode drive circuit respectively with switching capacity battle array
Row one and switched capacitor array two are connected；
The switched capacitor array one and switched capacitor array two are by the PIN diode list for including electric capacity more than two
Unit composes in parallel；The varactor group one and varactor group two are connected group by varactor with peripheral circuit
Into.
In such scheme, the present invention is implemented in combination with small bounce frequency filter using PIN diode and varactor, its master
The capacitive part wanted is using the electricity in PIN diode unit more than two in switched capacitor array one and switched capacitor array two
Hold to realize, remaining small capacitances (usual 0.5-3pf) are using the transfiguration in varactor group one and varactor group two
Diode is realized.In the case where the capacitance of PIN diode unit has deviation, varactor is because electricity can be realized
Appearance continuously adjustabe, therefore the deviation of electric capacity in PIN diode unit can be compensated, so as to reduce to PIN diode unit electricity
The required precision of appearance, it is to avoid need to select the problem for replacing electric capacity.
In addition, varactor is because now only need to realize small capacitances, only need to use voltage ratio higher is small
Capacitance range, while being so considerably improved the power capability of varactor from the varactor of high pressure again.
Specifically, PIN diode unit described in every group is by PIN diode, electric capacity, inductance and peripheral circuit connection group
Into.
Or, after PIN diode unit described in every group is by the parallel connection of double PIN diode DC series radio frequencies, then by electric capacity
Connected with peripheral circuit and constituted；Each described PIN diode is respectively with for partial pressure, simultaneously resistance resistance one high is in parallel.Which
PIN diode unit be need two feed, it is for partial pressure that each PIN diode is in parallel with the resistance one of high value respectively
Uniformly.
After the varactor group one and varactor group two are by the back-to-back series connection of capister, then with periphery
Circuit connection composition.Varactor group one of the invention and varactor group two by the back-to-back series connection of capister,
Can further hoisting power ability.Series system causes that the varactor that radio-frequency voltage is connected is divided equally, so each transfiguration
The radio-frequency voltage that diode bears can halve, and power capability is promoted to 4 times；And back-to-back series system is then supported by opposite in phase
Disappear and reduce even-order distortion significantly.Series connection can also be added if necessary to further improve power.Use with after upper type, power
Ability can reach the power capability of the small bounce frequency filter of PIN casts, i.e. 1W and not damage, and can work to the uncompressed classes of 20dBm
Type.
The mode of the back-to-back series connection of capister of the present invention is as follows：
The first, the back-to-back series connection of capister refers to：Including four varactors, wherein, each two becomes
Turn into one group of varactor cell after holding diodes in parallel, two groups of varactor cells are connected in back-to-back mode again；
Wherein, two groups of back-to-back modes of varactor cell refer to：Each varactor in one group of varactor cell
Negative pole is oppositely arranged with the negative pole of each varactor in another group of varactor cell.
Second, the back-to-back series connection of the capister refers to：Including two varactors, each varactor
Connected in the mode that negative pole is relative.
The third, the back-to-back series connection of capister refers to：Including two varactors, each varactor
Connected in the mode that positive pole is relative.Wherein, differed with the feed polarity of the third mode for second.
4th kind, the back-to-back series connection of the capister refers to：Including 12 varactors, wherein, every three
Turn into one group of varactor cell after varactor parallel connection；In four groups of varactor cells, every two groups of transfigurations two pole
Varactor array is formed after pipe unit series connection, two varactor arrays are connected in back-to-back mode again；Wherein, two
The individual back-to-back mode of varactor array refers to：In one varactor array the negative pole of each varactor with it is another
The negative pole of each varactor is oppositely arranged in one varactor array；
Varactor cell described in every group is respectively with for partial pressure, simultaneously resistance resistance two high is in parallel.
It is in order to partial pressure is uniform that every group of varactor cell is in parallel with the resistance two of high value respectively in which.
The matching network one and matching network two are an inductance.Matching network of the invention one and matching network two
Can also be realized using diversified forms such as low passes.
The coupler is made up of three inductance with star-like form connection；Or coupler is an inductance；Or coupling
Clutch is realized by the way of resonant inductance is by inductive.
Compared with prior art, the invention has the advantages that and beneficial effect：
1st, PIN diode of the present invention and varactor mating type bounce frequency filter are using PIN diode and transfiguration two
Pole pipe combine mode, may be implemented in PIN diode unit capacitance there is deviation in the case of, by varactor
Electric capacity continuously adjustabe is realized with compensating electric capacity deviation, so as to reduce the required precision to PIN diode cell capacitance, it is to avoid need
Select the problem for replacing electric capacity.
2nd, PIN diode of the invention and varactor mating type bounce frequency filter can improve power capability.
Brief description of the drawings
Fig. 1 is the schematic diagram of PIN diode of the present invention and varactor mating type bounce frequency filter；
Fig. 2 is the circuit diagram of PIN diode of the present invention and varactor mating type bounce frequency filter；
Fig. 3 is the schematic diagram of each PIN diode unit in embodiment two；
Fig. 4 is that the back-to-back cascade of capister is schematic diagram in embodiment three；
Fig. 5 is that the back-to-back cascade of capister is schematic diagram in example IV；
Fig. 6 is that the back-to-back cascade of capister is schematic diagram in embodiment five；
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one
As depicted in figs. 1 and 2, a kind of PIN diode of the invention and varactor mating type bounce frequency filter, respectively with
Rf inputs and RF output end are connected, and the bounce frequency filter includes the matching network one being sequentially connected, resonant inductance one, opens
Close capacitor array one, capister group one, coupler, capister group two, switched capacitor array two, the and of resonant inductance two
Matching network two；Wherein, matching network one is connected with rf inputs, and matching network two is connected with RF output end.
Bounce frequency filter of the present invention also include varactor drive circuit, PIN diode drive circuit, and respectively with
Varactor drive circuit and the digital control circuit of PIN diode drive circuit connection, wherein, varactor drives electricity
Road is connected with capister group one and capister group two respectively, state PIN diode drive circuit respectively with switching capacity
Array one and switched capacitor array two are connected；
The PIN bis- that the switched capacitor array one and switched capacitor array two of the bounce frequency filter include electric capacity by two groups
Pole pipe unit is composed in parallel, and varactor group one and varactor group two are connected by varactor with peripheral circuit
Composition.
Wherein, in switched capacitor array one every group of PIN diode unit by PIN diode (VD1 or VD2, electric capacity (C1 or
C2), inductance (L4 or L5) and peripheral circuit connection composition.Every group of PIN diode unit is by the poles of PIN bis- in switched capacitor array two
Pipe (VD11 or VD12, electric capacity (C3 or C4), inductance (L11 or L12) and peripheral circuit connection composition.
And it is after varactor group one and varactor group two are by the back-to-back series connection of capister then electric with periphery
Road connection composition.Specifically, in varactor group one, the above-mentioned back-to-back series connection of capister refers to：Including four
Varactor (VD3, VD4, VD5 and VD6), wherein, turn into one group of transfiguration after two varactor (VD3 and VD4) parallel connections
Diode, another group of varactor cell, two groups of changes are turned into after the parallel connection of two other varactor (VD5 and VD6)
Hold diode to be connected in back-to-back mode again.Wherein, two groups of back-to-back modes of varactor cell refer to：One group
In varactor cell (including varactor VD3 and varactor VD4) negative pole of each varactor with it is another
The negative pole of each varactor in one group of varactor cell (including varactor VD5 and varactor VD6)
It is oppositely arranged.Varactor group one of the invention and varactor group two can be entered by the back-to-back series connection of capister
One step hoisting power ability.Series system causes that the varactor that radio-frequency voltage is connected is divided equally, so each pole of transfiguration two
The radio-frequency voltage that pipe bears can halve, and power capability is promoted to 4 times；And back-to-back series system is then offset greatly by opposite in phase
Reduce even-order distortion greatly.Series connection can also be added if necessary to further improve power.Use with after upper type, power capability
The power capability of the small bounce frequency filter of PIN casts, i.e. 1W can be reached not damage, can be worked to the uncompressed types of 20dBm.
Matching network of the invention one is an inductance L1, and matching network two is an inductance L15.And coupler is by three
Inductance (L7, L9 and L8) connects composition in star-like form.The coupler of the present embodiment can be an inductance；Or the coupler
Realized by the way of resonant inductance is by inductive.
VC1, VC2, VC5 and VC6 in Fig. 2 are the output for connecting PIN switch driving circuits, and VC3 and VC4 is connection transfiguration
The output of diode drive circuit.
Embodiment two
The present embodiment the difference is that only with embodiment one：Switched capacitor array one and switched capacitor array two are by two groups
The PIN diode unit for more than including electric capacity is composed in parallel.As shown in figure 3, every group of PIN diode unit is by the poles of double PIN bis-
After the parallel connection of pipe DC series radio frequency, then composition is connected by electric capacity and peripheral circuit, each PIN diode respectively with for partial pressure
And resistance resistance one high is in parallel.The PIN diode unit of which be need two feed, each PIN diode respectively with
The parallel connection of resistance one of high value is in order to partial pressure is uniform.
The other structures of the present embodiment are consistent with embodiment one.
Embodiment three
The present embodiment the difference is that only with embodiment one：Varactor group one and varactor group two are by change
After holding the back-to-back series connection of diode, then composition is connected with peripheral circuit.Wherein, the back-to-back series connection of capister refers to：Such as Fig. 4
Shown, including two varactors, each varactor is connected in the relative mode of negative pole.
The other structures of the present embodiment are consistent with embodiment one.
Example IV
The present embodiment the difference is that only with embodiment one：Varactor group one and varactor group two are by change
After holding the back-to-back series connection of diode, then composition is connected with peripheral circuit.Wherein, the back-to-back series connection of capister refers to：Such as Fig. 5
Shown, including two varactors, each varactor is connected in the relative mode of positive pole.
The other structures of the present embodiment are consistent with embodiment one.
Embodiment five
The present embodiment the difference is that only with embodiment one：Varactor group one and varactor group two are by change
After holding the back-to-back series connection of diode, then composition is connected with peripheral circuit.Wherein, the back-to-back series connection of capister refers to：Transfiguration
Diode it is back-to-back series connection refer to：As shown in fig. 6, including 12 varactors, wherein, every three varactor parallel connections
Turn into one group of varactor cell afterwards；In four groups of varactor cells, shape after every two groups of varactor cells series connection
Into varactor array, two varactor arrays are connected in back-to-back mode again；Wherein, two varactor battle arrays
Arranging back-to-back mode refers to：The negative pole of each varactor and another varactor in one varactor array
The negative pole of each varactor is oppositely arranged in array；
Every group of varactor cell is respectively with for partial pressure, simultaneously resistance resistance two high is in parallel.Every group of transfiguration in which
It is in order to partial pressure is uniform that diode is in parallel with the resistance two of high value respectively.
The other structures of the present embodiment are consistent with embodiment one.
Above-described embodiment is the present invention preferably implementation method, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of PIN diode and varactor mating type bounce frequency filter, respectively with rf inputs and RF output end
Connection, it is characterised in that：Including the matching network one, resonant inductance one, the switched capacitor array one, capister that are sequentially connected
Group one, coupler, capister group two, switched capacitor array two, resonant inductance two and matching network two；The matching network
One is connected with rf inputs, and matching network two is connected with RF output end；Also include varactor drive circuit, PIN bis-
Pole pipe drive circuit, and the digital control electricity being connected with varactor drive circuit and PIN diode drive circuit respectively
Road；The varactor drive circuit is connected with capister group one and capister group two respectively；The poles of the PIN bis-
Tube drive circuit is connected with switched capacitor array one and switched capacitor array two respectively；
The switched capacitor array one and switched capacitor array two by the PIN diode unit for including electric capacity more than two simultaneously
Joint group into；The varactor group one and varactor group two are connected composition with peripheral circuit by varactor.
2. PIN diode according to claim 1 and varactor mating type bounce frequency filter, it is characterised in that：Often
The group PIN diode unit is made up of the connection of PIN diode, electric capacity, inductance and peripheral circuit.
3. PIN diode according to claim 1 and varactor mating type bounce frequency filter, it is characterised in that：Often
After the group PIN diode unit is by the parallel connection of double PIN diode DC series radio frequencies, then by electric capacity and peripheral circuit connection group
Into；Each described PIN diode is respectively with for partial pressure, simultaneously resistance resistance one high is in parallel.
4. PIN diode according to claim 1 and varactor mating type bounce frequency filter, it is characterised in that：Institute
After varactor group one and varactor group two are stated by the back-to-back series connection of capister, then group is connected with peripheral circuit
Into.
5. PIN diode according to claim 4 and varactor mating type bounce frequency filter, it is characterised in that：Institute
Stating the back-to-back series connection of capister refers to：Including four varactors, wherein, turn into after the parallel connection of each two varactor
One group of varactor cell, two groups of varactor cells are connected in back-to-back mode again；Wherein, two groups of varactors
The back-to-back mode of unit refers to：The negative pole of each varactor and another group of pole of transfiguration two in one group of varactor cell
The negative pole of each varactor is oppositely arranged in pipe unit.
6. PIN diode according to claim 4 and varactor mating type bounce frequency filter, it is characterised in that：Institute
Stating the back-to-back series connection of capister refers to：Including two varactors, each varactor is in the relative mode of negative pole
Series connection.
7. PIN diode according to claim 4 and varactor mating type bounce frequency filter, it is characterised in that：Institute
Stating the back-to-back series connection of capister refers to：Including two varactors, each varactor is in the relative mode of positive pole
Series connection.
8. PIN diode according to claim 4 and varactor mating type bounce frequency filter, it is characterised in that：Institute
Stating the back-to-back series connection of capister refers to：Including 12 varactors, wherein, after the parallel connection of every three varactors into
It is one group of varactor cell；In four groups of varactor cells, formed after every two groups of varactor cells series connection and become
Hold diode array, two varactor arrays are connected in back-to-back mode again；Wherein, two varactor array back ofs the body
To carry on the back mode refer to：The negative pole of each varactor and another varactor array in one varactor array
In the negative pole of each varactor be oppositely arranged；
Varactor cell described in every group is respectively with for partial pressure, simultaneously resistance resistance two high is in parallel.
9. PIN diode according to claim 1 and varactor mating type bounce frequency filter, it is characterised in that：Institute
State matching network one and matching network two is an inductance.
10. PIN diode according to claim 1 and varactor mating type bounce frequency filter, it is characterised in that：Institute
Coupler is stated to be made up of with star-like form connection three inductance；Or coupler is an inductance；Or coupler is using humorous
The inductance that shakes is realized by way of inductive.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037756.7A CN106788308B (en) | 2017-01-18 | 2017-01-18 | PIN diode and varactor diode combined frequency hopping filter |
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|---|---|---|---|
| CN201710037756.7A CN106788308B (en) | 2017-01-18 | 2017-01-18 | PIN diode and varactor diode combined frequency hopping filter |
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| CN106788308B CN106788308B (en) | 2024-04-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365304A (en) * | 2019-07-30 | 2019-10-22 | 成都频岢微电子有限公司 | A kind of branch's filter |
| CN112311349A (en) * | 2020-09-25 | 2021-02-02 | 南京熊猫电子股份有限公司 | Pressure-sensitive capacitance frequency hopping filter based on barium strontium titanate |
| US11043944B1 (en) | 2019-08-14 | 2021-06-22 | Lockheed Martin Corporation | System and method employing low distortion and low loss switch with anti-series diodes |
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| CN112311349A (en) * | 2020-09-25 | 2021-02-02 | 南京熊猫电子股份有限公司 | Pressure-sensitive capacitance frequency hopping filter based on barium strontium titanate |
| CN112311349B (en) * | 2020-09-25 | 2024-03-01 | 南京熊猫电子股份有限公司 | Pressure-sensitive capacitance frequency hopping filter based on barium strontium titanate |
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