CN105406161B - A kind of degree of coupling it is adjustable and with restructural response across directional coupler - Google Patents
A kind of degree of coupling it is adjustable and with restructural response across directional coupler Download PDFInfo
- Publication number
- CN105406161B CN105406161B CN201510895732.6A CN201510895732A CN105406161B CN 105406161 B CN105406161 B CN 105406161B CN 201510895732 A CN201510895732 A CN 201510895732A CN 105406161 B CN105406161 B CN 105406161B
- Authority
- CN
- China
- Prior art keywords
- degree
- coupling
- directional coupler
- adjusts
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
- H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
Landscapes
- Filters And Equalizers (AREA)
Abstract
It is adjustable the invention discloses a kind of degree of coupling and with restructural response across directional coupler, it is characterised in that including medium substrate；It is provided with Coupled Miccrostrip Lines, flying capcitor on the medium substrate, first degree of coupling adjusting circuit across the directional coupler degree of coupling and second degree of coupling adjusting circuit, varactor, the bias voltage generating circuit for providing reverse bias voltage to the varactor and 4 input/out parts being connected with the Coupled Miccrostrip Lines both ends can be adjusted；The present invention can realize the degree of coupling arbitrarily reconstruct and adjust, and with it is restructural be bridge circuit performance.
Description
Technical field
The invention belongs to electronic technology fields, are related to a kind of microwave device, and specially a kind of degree of coupling is adjustable and has
Restructural response across directional coupler.
Background technology
Directional coupler is that input signal power is divided into two outputs according to special ratios in specific frequency range
Four port microwave devices of signal, major function have signal power distribution/synthesis, power sampling/detection and antenna array
Feed etc..Directional coupler has been widely applied to frequency mixer, filter, balanced power amplifiers, phase shifter and antenna array
In the microwave circuits such as system.With the development of Modern Communication System multi-standard front end, it is desirable that there is directional coupler frequency can weigh
The function that structure, the degree of coupling are restructural and phase is restructural.It can realize the restructural coupler of the degree of coupling in antenna array system
With critically important application.By giving element antenna different amplitude weightings, multi-beam can be reconstructed in the case that low-loss
The directional pattern of antenna, still, the degree of coupling adjustable range phase of the restructural directional coupler of the degree of coupling in the prior art
To smaller.
It is a kind of four port radio-frequency apparatus to cross bridge circuit, can be avoided in two radio frequency microstrip lines by using bridge circuit is crossed
Occurs non-planar circuits structure when intersecting.It is above-mentioned to cross bridge circuit in planar integrated circuit using very extensive.But it is existing
There is most of bridge circuit of crossing in technology to need to be based on via technology, loss is larger, and processing is more complex.
Invention content
The it is proposed of the present invention in view of the above problems, and develop a kind of degree of coupling it is adjustable and with restructural response across
Directional coupler.
The technological means of the present invention is as follows：
A kind of degree of coupling it is adjustable and with restructural response across directional coupler, it is characterised in that including medium base
Plate；It is provided with Coupled Miccrostrip Lines, flying capcitor on the medium substrate, can adjust and described coupled across directional coupler
First degree of coupling of degree adjusts circuit and second degree of coupling adjusts circuit, varactor, for being carried to the varactor
Bias voltage generating circuit for reverse bias voltage and be connected with the Coupled Miccrostrip Lines both ends 4 inputs/
Output section；The Coupled Miccrostrip Lines include the first microstrip line and the second microstrip line being mutually parallel；The flying capcitor and
The varactor is placed between first microstrip line and second microstrip line；First degree of coupling adjusts circuit
It is connected with the first microstrip line；Second degree of coupling adjusts circuit and is connected with the second microstrip line；First degree of coupling tune
Economize on electricity road include at least a degree of coupling adjust branch, the degree of coupling adjust branch include switching diode, adjust inductance, first partially
Set resistance and the first capacitance；The switching diode cathode is via the first biasing resistor one described in the adjusting inductance connection
End and first capacitance one end；The first biasing resistor other end and the first company that supply voltage cathode can be connect
Socket part is connected；The first capacitance other end ground connection；The switching diode anode with can connect supply voltage just
The second connecting portion of pole is connected；It is opposite that the structure and first degree of coupling of second degree of coupling adjusting circuit adjust circuit
Claim；
When not giving first degree of coupling to adjust circuit and the adjusting circuit power supply of second degree of coupling, by adjusting the change
The capacitance for holding diode described to be reconstructed into bridge circuit across directional coupler；It is electric when being adjusted to first degree of coupling
When road and second degree of coupling adjust circuit power supply, the degree of coupling that supply voltage is applied in by switching adjusts branch or change is applied
Add the degree of coupling of supply voltage to adjust included by branch and adjust the inductance value of inductance, and adjusts the varactor simultaneously
Capacitance adjusts the degree of coupling across directional coupler；
Further, the transfiguration two is adjusted by changing the bias voltage value of the bias voltage generating circuit output
The capacitance of pole pipe；
Further, the bias voltage generating circuit include connect externally fed power supply third interconnecting piece, second partially
Set resistance, third biasing resistor and shunt capacitance；Second biasing resistor one end connects the third interconnecting piece, and the other end connects
Connect the first microstrip line；Third biasing resistor one end connects the second microstrip line, other end ground connection；Described shunt capacitance one end connects
Connect the third interconnecting piece, other end ground connection；
Further, also it is serially connected with the first choke induction between the switching diode anode and second connecting portion；It is described
Switching diode anode connects the first microstrip line by the second capacitance；
Further, the flying capcitor has 2, is respectively placed in the both ends of the Coupled Miccrostrip Lines, and capacitance phase
Deng；The varactor is placed in the middle part of the Coupled Miccrostrip Lines；
Further, the input/out parts include the first input/output microstrip line being sequentially connected in series, third blocking electricity
Hold and the second input/output microstrip line；
Further, when first degree of coupling adjusts the coupling that circuit and second degree of coupling adjusting circuit are respectively included
When the quantity that degree adjusts branch is more than 1, whether the first connecting portion that branch is adjusted by controlling each degree of coupling connects power supply electricity
Whether pressure cathode and/or second connecting portion connect supply voltage anode to realize that each coupler adjusts the switching of branch；
Further, when first degree of coupling adjusts the coupling that circuit and second degree of coupling adjusting circuit are respectively included
When the quantity that degree adjusts branch is more than 1, the inductance value that each degree of coupling adjusts the adjusting inductance included by branch is different, different couplings
When right adjusting branch is applied in supply voltage, the bias voltage generating circuit exports different bias voltage values；
Further, the degree of coupling across directional coupler
Wherein：ZceFor the Coupled Miccrostrip Lines
Even mode impedance value, Z0It is described across directional coupler for electrical length that 50 ohm, θ are the Coupled Miccrostrip Lines, k
The degree of coupling, f adjust branch by the degree of coupling for being applied in supply voltage and are wrapped described in being across the centre frequency of directional coupler, L
The inductance value of the adjusting inductance included, ZeeAnd ZeoFor intermediate variable；
Further, the capacitance of the varactor
Wherein：ZceIt is described
Even mode impedance value, the Z of Coupled Miccrostrip LinescoOdd mode impedance value, Z for the Coupled Miccrostrip Lines0It is for 50 ohm, θ
The electrical length of the Coupled Miccrostrip Lines, f be it is described across the centre frequency of directional coupler, L be to be applied in supply voltage
The degree of coupling adjust the adjusting inductance value of inductance included by branch, C is the capacitance of the varactor, CkFor it is described across
Meet capacitance, the m of capacitance2And m1For intermediate variable.
By adopting the above-described technical solution, a kind of degree of coupling provided by the invention is adjustable and with restructural response
Across directional coupler, can realize the degree of coupling arbitrarily reconstruct and adjust, and with it is restructural be bridge circuit performance, structure
Simply, low cost, easy processing are integrated, suitable for being widely popularized.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention across directional coupler；
Fig. 2 be it is of the present invention across the directional coupler degree of coupling with the different test curve of inductance value for adjusting inductance
Figure；
Fig. 3 be it is of the present invention across directional coupler return loss with the different test curve of inductance value for adjusting inductance
Figure；
Fig. 4 be it is of the present invention across directional coupler isolation with the different test curve of inductance value for adjusting inductance
Figure.
In figure：1, medium substrate, 2, Coupled Miccrostrip Lines, 3, flying capcitor, 4, varactor, 5, bias voltage life
At circuit, 7, input/output end port, 8, the degree of coupling adjust branch, 9, first connecting portion, 10, second connecting portion, 11, third connects
Socket part, the 21, first microstrip line, the 22, second microstrip line, the 61, first input/output microstrip line, 62, third capacitance, 63,
Two input/output microstrip lines.
Specific implementation mode
A kind of degree of coupling as shown in Figure 1 it is adjustable and with restructural response across directional coupler, feature exists
In including medium substrate 1；It is provided with Coupled Miccrostrip Lines 2 on the medium substrate 1, flying capcitor 3, the cross can be adjusted
Circuit is adjusted across first degree of coupling of the directional coupler degree of coupling and second degree of coupling adjusts circuit, varactor 4, for giving
The varactor 4 provide reverse bias voltage bias voltage generating circuit 5 and with the Coupled Miccrostrip Lines 2
4 input/out parts that both ends are connected；The Coupled Miccrostrip Lines 2 include the first microstrip line 21 for being mutually parallel and the
Two microstrip lines 22；The flying capcitor 3 and the varactor 4 are placed in first microstrip line 21 and second micro-strip
Between line 22；First degree of coupling adjusts circuit and is connected with the first microstrip line 21；Second degree of coupling adjust circuit with
Second microstrip line 22 is connected；First degree of coupling adjusts circuit and includes at least degree of coupling adjusting branch 8, the degree of coupling tune
Branch 8 is saved to include switching diode, adjust inductance, the first biasing resistor and the first capacitance；The switching diode cathode
Via first biasing resistor one end and first capacitance one end described in the adjusting inductance connection；First biased electrical
The resistance other end is connected with the second connecting portion 10 that can connect supply voltage cathode；The first capacitance other end ground connection；
The switching diode anode is connected with the first connecting portion 9 that can connect supply voltage anode；Second degree of coupling is adjusted
The structure of circuit and first degree of coupling adjusting circuit are symmetrical；When not to first degree of coupling adjusting circuit and the second coupling
When the power supply of right adjusting circuit, described to reconstruct across directional coupler by adjusting the capacitance of the varactor 4
To cross bridge circuit；When adjusting circuit and the adjusting circuit power supply of second degree of coupling to first degree of coupling, applied by switching
Add the degree of coupling of supply voltage to adjust branch 8 or changes the adjusting being applied in included by the degree of coupling adjusting branch 8 of supply voltage
The inductance value of inductance, and the capacitance of the varactor 4 is adjusted simultaneously to adjust the coupling across directional coupler
Degree；Further, the varactor is adjusted by changing the bias voltage value that the bias voltage generating circuit 5 exports
4 capacitance；Further, the bias voltage generating circuit 5 includes the third interconnecting piece 11 of connection externally fed power supply, the
Two biasing resistors, third biasing resistor and shunt capacitance；Second biasing resistor one end connects the third interconnecting piece 11, separately
One end connects the first microstrip line 21；Third biasing resistor one end connects the second microstrip line 22, other end ground connection；The bypass
Capacitance one end connects the third interconnecting piece 11, other end ground connection；Further, the switching diode anode is connect with second
The first choke induction is also serially connected between portion 10；The switching diode anode connects the first microstrip line by the second capacitance
21；Further, the flying capcitor 3 has 2, is respectively placed in the both ends of the Coupled Miccrostrip Lines 2, and capacitance is equal；
The varactor 4 is placed in the middle part of the Coupled Miccrostrip Lines 2；Further, the input/out parts include successively
Concatenated first input/output microstrip line 61, third capacitance 62 and the second input/output microstrip line 63；Further, when
The quantity that first degree of coupling adjusts the degree of coupling adjusting branch 8 that circuit and second degree of coupling adjusting circuit are respectively included is big
When 1, whether the first connecting portion 9 that branch 8 is adjusted by controlling each degree of coupling connects supply voltage cathode and/or the second company
Whether socket part 10 connects supply voltage anode to realize that each coupler adjusts the switching of branch；Further, when first coupling
When the right quantity for adjusting the degree of coupling adjusting branch 8 that circuit and second degree of coupling adjusting circuit are respectively included is more than 1, respectively
The inductance value that the degree of coupling adjusts the adjusting inductance included by branch 8 is different, and the different degrees of coupling adjust branch 8 and are applied in supply voltage
When, the bias voltage generating circuit 5 exports different bias voltage values；Further, the coupling across directional coupler
It is rightWherein： ZceIt is described flat
Even mode impedance value, the Z of row coupled microstrip line 20It is the cross for electrical length that 50 ohm, θ are the Coupled Miccrostrip Lines 2, k
Across the degree of coupling of directional coupler, f be it is described across the centre frequency of directional coupler, L be the coupling for being applied in supply voltage
Degree adjusts the inductance value of the adjusting inductance included by branch 8, ZeeAnd ZeoFor intermediate variable；Further, the varactor
4 capacitanceWherein：Zce
Even mode impedance value, Z for the Coupled Miccrostrip Lines 2coOdd mode impedance value, Z for the Coupled Miccrostrip Lines 20It is 50
Ohm, θ are the electrical length of the Coupled Miccrostrip Lines 2, f be it is described across the centre frequency of directional coupler, L be to be applied in
The degree of coupling of supply voltage adjust the inductance value of the adjusting inductance included by branch 8, the capacitance that C is the varactor 4,
CkCapacitance, m for the flying capcitor 32And m1For intermediate variable.
The degree of coupling of the present invention across directional coupler adjusts branch 8 with the degree of coupling for being applied in supply voltage and is wrapped
Relationship between the inductance value of the adjusting inductance included can pass through formula
WithIt obtains, the capacitance of the varactor 4 and the degree of coupling for being applied in supply voltage adjust branch 8
Relationship between the inductance value of included adjusting inductance can pass through formulaWithIt obtains, wherein ZceEven mode impedance value, Z for the Coupled Miccrostrip Lines 20
For electrical length that 50 ohm, θ are the Coupled Miccrostrip Lines 2, k be described across the degree of coupling of directional coupler, f it is described
It is the adjusting inductance being applied in included by the degree of coupling adjusting branch 8 of supply voltage across the centre frequency of directional coupler, L
Inductance value, ZeeAnd ZeoFor intermediate variable, ZcoOdd mode impedance value, C for the Coupled Miccrostrip Lines 2 are two pole of the transfiguration
The capacitance of pipe 4, CkCapacitance, m for the flying capcitor 32And m1It is to sum up above-mentioned for intermediate variable, it can be derived that across fixed
It is adjusted included by branch 8 to the degree of coupling of coupler, the capacitance of varactor 4, with the degree of coupling for being applied in supply voltage
Adjusting inductance inductance value between relationship, and then obtain the degree of coupling across directional coupler, bias voltage generating circuit 5
The bias voltage value of output, be applied in supply voltage the degree of coupling adjust branch 8 included by adjusting inductance inductance value it
Between relationship, the correspondence for the bias voltage value that the capacitance of varactor 4 is exported with bias voltage generating circuit 5 can
It is obtained by the inherent characteristic parameter of varactor 4, further, by ZceValue is 50 ohm, ZcoValue is 46 ohm, Ck
Value be 2.44pF, θ be 60 degree, f values are 1.6GHz, it is concluded that being generated across the degree of coupling of directional coupler, bias voltage
The bias voltage value and be applied in the inductance for adjusting inductance included by the degree of coupling adjusting branch 8 of supply voltage that circuit 5 exports
Relation table such as table 1 between value.
Bias voltage value that table 1. is exported across the degree of coupling of directional coupler, bias voltage generating circuit 5, be applied in
The degree of coupling of supply voltage adjusts the exemplary relationship table between the inductance value of the adjusting inductance included by branch 8.
As shown in table 1, the present invention is hanging by first connecting portion 9 and second connecting portion 10, adjusts bias voltage generating circuit 5
The bias voltage of output is at this time infinity across the degree of coupling of directional coupler coupler, signal all passes through coupling to 2.94V
Clutch is transmitted across the straight-through port of directional coupler, realizes the response of bridge circuit；First connecting portion 9 is connected into power supply electricity
Cathode is pressed, the degree of coupling that the inductance value for controlling to adjust inductance is 10nH adjusts the connection of second connecting portion 10 corresponding to branch 8 and supplies
Piezoelectric voltage anode, while the bias voltage for adjusting the output of bias voltage generating circuit 5 can then be realized to 3.4V across orientation coupling
The degree of coupling of clutch coupler 12.3dB, the degree of coupling that the inductance value for controlling to adjust inductance is 5.6nH are adjusted corresponding to branch 8
Second connecting portion 10 connects supply voltage anode, while adjusting the bias voltage of the output of bias voltage generating circuit 5 to 3.94V,
It can then realize the degree of coupling across directional coupler coupler 7.8dB, the inductance value for controlling to adjust inductance is the coupling of 2.4nH
Degree adjusts the second connecting portion 10 corresponding to branch 8 and connects supply voltage anode, while adjusting the output of bias voltage generating circuit 5
Bias voltage to 5.28V, then can realize the degree of coupling across directional coupler coupler 3dB.
The electrical length of Coupled Miccrostrip Lines 2 of the present invention is 60 °, and the varactor 4 is connected across parallel coupling
The centre position of microstrip line 2, first degree of coupling adjusts circuit and second degree of coupling adjusting circuit structure is symmetrical, and loads on respectively
2 both sides of the Coupled Miccrostrip Lines, the first capacitance, the second capacitance and third capacitance 62 are for obstructing direct current
Signal, specifically, third capacitance 62 is for preventing direct current signal from entering input/output end port 7；First choke induction is used for
Prevent AC signal from entering the direct voltage source for exporting supply voltage；The first capacitance other end ground connection is described
The second biasing resistor other end is grounded, and the shunt capacitance other end ground connection specifically, can be connected by via with floor
It connects.
It is bent with the different test of the inductance value for adjusting inductance across the directional coupler degree of coupling that Fig. 2 shows of the present invention
Line chart, Fig. 3 show of the present invention bent with the different test of the inductance value for adjusting inductance across directional coupler return loss
Line chart, Fig. 4 show it is of the present invention across directional coupler isolation with the different test curve of inductance value for adjusting inductance
Figure, as shown in Figure 2, Figure 3 and Figure 4, the technical indicator of the present invention across directional coupler is as follows：
Centre frequency：1.6GHz
The restructural range of the degree of coupling：1.8dB~+∞；
Isolation：≥20dB
Return loss：≥20dB
Restructural response：Cross bridge circuit
When the degree of coupling is+∞, it was bridge circuit to be somebody's turn to do restructural across directional coupler；It is described across directional coupler
The degree of coupling is controlled by the bias voltage that the degree of coupling adjusting branch 8 and bias voltage generating circuit 5 that are applied in supply voltage export
System need not redesign circuit, and the degree of coupling that supply voltage is only applied in by switching adjusts branch 8 or change is applied in confession
The degree of coupling of piezoelectric voltage adjusts the inductance value of the adjusting inductance included by branch 8, and adjusts the electricity of the varactor 4 simultaneously
Capacitance adjusts the degree of coupling across directional coupler.It is of the present invention to realize coupling across directional coupler
Spend arbitrary reconstruct and adjusting, and with it is restructural be the performance of bridge circuit, simple in structure, inexpensive, easy processing is integrated, be suitable for
It is widely popularized.
Fig. 1 shows the structural schematic diagram of the present invention across directional coupler, as shown in Figure 1, wherein the first coupling
It includes that 3 degrees of coupling adjust branches 8, but the first degree of coupling tune of the invention that degree, which adjusts circuit and second degree of coupling adjusting circuit,
The quantity that economize on electricity road and second degree of coupling adjust the degree of coupling adjusting branch 8 that circuit is respectively included is not limited to 3, number
Amount can be adjusted according to the practical degree of coupling demand across directional coupler, and then be realized across directional coupler
The reconstruct of arbitrarily coupling degree.As shown in Figure 1, wherein D1, D2, D3, D4, D5 and D6 are switching diode, L1, L2, L3, L7, L8
It is to adjust inductance with L9, R1, R2, R3, R7, R8 and R9 are the first biasing resistor, and C1, C2, C3, C7, C8 and C9 are the first blocking
Capacitance, R5 are the second biasing resistor, and R6 is third biasing resistor, and C5 is shunt capacitance, and L4 and L6 are the first choke induction, C4 and
C6 is the second capacitance；It sets 3 degrees of coupling that first degree of coupling is adjusted included by circuit and adjusts the respectively degree of coupling of branch 8
Adjust branch I, the degree of coupling adjusts branch II, the degree of coupling adjusts branch III, wherein it includes the first biasing that the degree of coupling, which adjusts branch I,
Resistance R1, the first capacitance C1, inductance L1 and switching diode D1 is adjusted, it includes the first biased electrical that the degree of coupling, which adjusts branch II,
It hinders R2, the first capacitance C2, adjust inductance L2 and switching diode D2, it includes the first biasing resistor that the degree of coupling, which adjusts branch III,
R3, the first capacitance C3, inductance L3 and switching diode D3 is adjusted, second degree of coupling of setting adjusts 3 included by circuit
It is respectively that the degree of coupling adjusts branch IV, the degree of coupling adjusts branch V, the degree of coupling adjusts branch VI that the degree of coupling, which adjusts branch 8, wherein
The degree of coupling adjusts branch IV and includes the first biasing resistor R7, the first capacitance C7, adjusts inductance L7 and switching diode D7, coupling
Right adjusting branch V includes the first biasing resistor R8, the first capacitance C8, adjusts inductance L8 and switching diode D8, coupling
Degree adjusts branch VI and includes the first biasing resistor R9, the first capacitance C9, adjusts inductance L9 and switching diode D9, specifically
Ground, the structure of degree of coupling adjusting branch I and the structure of degree of coupling adjusting branch IV are symmetrical, and the degree of coupling adjusts the knot of branch II
The structure that structure adjusts branch V with the degree of coupling is symmetrical, and the degree of coupling adjusts the structure of branch III and the degree of coupling adjusts branch VI
Structure is symmetrical.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of degree of coupling it is adjustable and with restructural response across directional coupler, it is characterised in that including medium base
Plate；It is provided with Coupled Miccrostrip Lines, flying capcitor on the medium substrate, can adjust and described coupled across directional coupler
First degree of coupling of degree adjusts circuit and second degree of coupling adjusts circuit, varactor, for being carried to the varactor
Bias voltage generating circuit for reverse bias voltage and be connected with the Coupled Miccrostrip Lines both ends 4 inputs/
Output section；The Coupled Miccrostrip Lines include the first microstrip line and the second microstrip line being mutually parallel；The flying capcitor and
The varactor is placed between first microstrip line and second microstrip line；First degree of coupling adjusts circuit
It is connected with the first microstrip line；Second degree of coupling adjusts circuit and is connected with the second microstrip line；First degree of coupling tune
Economize on electricity road include at least a degree of coupling adjust branch, the degree of coupling adjust branch include switching diode, adjust inductance, first partially
Set resistance and the first capacitance；The switching diode cathode is via the first biasing resistor one described in the adjusting inductance connection
End and first capacitance one end；The first biasing resistor other end and the first company that supply voltage cathode can be connect
Socket part is connected；The first capacitance other end ground connection；The switching diode anode with can connect supply voltage just
The second connecting portion of pole is connected；It is opposite that the structure and first degree of coupling of second degree of coupling adjusting circuit adjust circuit
Claim；
When not giving first degree of coupling to adjust circuit and the adjusting circuit power supply of second degree of coupling, by adjusting the transfiguration two
The capacitance of pole pipe described to be reconstructed into bridge circuit across directional coupler；When to first degree of coupling adjust circuit and
When second degree of coupling adjusts circuit power supply, the degree of coupling that supply voltage is applied in by switching adjusts branch or change is applied in confession
The degree of coupling of piezoelectric voltage adjusts the inductance value of the adjusting inductance included by branch, and adjusts the capacitance of the varactor simultaneously
Value adjusts the degree of coupling across directional coupler；
The degree of coupling across directional coupler
Wherein：ZceFor the idol of the Coupled Miccrostrip Lines
Mould impedance value, Z0It is the coupling across directional coupler for electrical length that 50 ohm, θ are the Coupled Miccrostrip Lines, k
It across the centre frequency of directional coupler, L is to be applied in the degree of coupling of supply voltage to adjust included by branch that degree, f, which are described,
Adjust inductance value, the Z of inductanceeeAnd ZeoFor intermediate variable；The capacitance of the varactor
Wherein：ZceFor the parallel coupling
Close even mode impedance value, the Z of microstrip linecoOdd mode impedance value, Z for the Coupled Miccrostrip Lines0It is described flat for 50 ohm, θ
The electrical length of row coupled microstrip line, f be it is described across the centre frequency of directional coupler, L be the coupling for being applied in supply voltage
Degree adjusts the inductance value of the adjusting inductance included by branch, C is the capacitance of the varactor, CkFor the flying capcitor
Capacitance, m2And m1For intermediate variable.
2. a kind of degree of coupling according to claim 1 it is adjustable and with restructural response across directional coupler,
It is characterized in that adjusting the electricity of the varactor by changing the bias voltage value of the bias voltage generating circuit output
Capacitance.
3. a kind of degree of coupling according to claim 2 it is adjustable and with restructural response across directional coupler,
It is characterized in that the bias voltage generating circuit includes connecting the third interconnecting piece of externally fed power supply, the second biasing resistor, the
Three biasing resistors and shunt capacitance；Second biasing resistor one end connects the third interconnecting piece, and other end connection first is micro-
Band line；Third biasing resistor one end connects the second microstrip line, other end ground connection；Described shunt capacitance one end connection described the
Three interconnecting pieces, other end ground connection.
4. a kind of degree of coupling according to claim 1 it is adjustable and with restructural response across directional coupler,
It is characterized in that also being serially connected with the first choke induction between the switching diode anode and second connecting portion；The switching diode
Anode connects the first microstrip line by the second capacitance.
5. a kind of degree of coupling according to claim 1 it is adjustable and with restructural response across directional coupler,
It is characterized in that the flying capcitor has 2, is respectively placed in the both ends of the Coupled Miccrostrip Lines, and capacitance is equal；The change
Hold the middle part that diode is placed in the Coupled Miccrostrip Lines.
6. a kind of degree of coupling according to claim 1 it is adjustable and with restructural response across directional coupler,
It is characterized in that the input/out parts include that the first input/output microstrip line being sequentially connected in series, third capacitance and second are defeated
Enter/export microstrip line.
7. a kind of degree of coupling according to claim 1 it is adjustable and with restructural response across directional coupler,
It is characterized in that adjusting circuit when first degree of coupling and second degree of coupling adjusts the degree of coupling that circuit is respectively included and adjusts branch
When the quantity on road is more than 1, adjusted by controlling each degree of coupling branch first connecting portion whether connect supply voltage cathode and/
Or whether second connecting portion connects supply voltage anode to realize that each coupler adjusts the switching of branch.
8. a kind of degree of coupling according to claim 1 it is adjustable and with restructural response across directional coupler,
It is characterized in that adjusting circuit when first degree of coupling and second degree of coupling adjusts the degree of coupling that circuit is respectively included and adjusts branch
When the quantity on road is more than 1, the inductance value that each degree of coupling adjusts the adjusting inductance included by branch is different, and the different degrees of coupling are adjusted
When branch is applied in supply voltage, the bias voltage generating circuit exports different bias voltage values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510895732.6A CN105406161B (en) | 2015-12-08 | 2015-12-08 | A kind of degree of coupling it is adjustable and with restructural response across directional coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510895732.6A CN105406161B (en) | 2015-12-08 | 2015-12-08 | A kind of degree of coupling it is adjustable and with restructural response across directional coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105406161A CN105406161A (en) | 2016-03-16 |
| CN105406161B true CN105406161B (en) | 2018-07-17 |
Family
ID=55471511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510895732.6A Expired - Fee Related CN105406161B (en) | 2015-12-08 | 2015-12-08 | A kind of degree of coupling it is adjustable and with restructural response across directional coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105406161B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816678B (en) * | 2017-01-18 | 2019-02-22 | 大连海事大学 | It is a kind of with any output amplitude and phase across directional coupler |
| CN108736584A (en) * | 2018-07-19 | 2018-11-02 | 大连海事大学 | A kind of restructural type rectification circuit of input power range |
| CN111786068B (en) * | 2020-08-05 | 2021-06-29 | 大连海事大学 | Broadband directional coupler with harmonic suppression function |
| CN114024108B (en) * | 2021-10-28 | 2022-10-11 | 南湖实验室 | Miniaturized reconfigurable microstrip low-pass filter |
| CN115377640B (en) * | 2022-08-07 | 2023-07-28 | 西安电子工程研究所 | Microstrip directional coupler with bridging capacitor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203673A (en) * | 1995-12-14 | 1998-12-30 | 康宁股份有限公司 | Tunable optical coupler using photosensitive glass |
| CN103972632A (en) * | 2014-05-23 | 2014-08-06 | 大连海事大学 | Frequency-tunable micro-strip crossing directional coupler |
| CN104064847A (en) * | 2014-07-02 | 2014-09-24 | 大连海事大学 | Coupling degree tunable microstrip crossing directional coupler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8947125B2 (en) * | 2013-02-21 | 2015-02-03 | Qualcomm Incorporated | Fast, low power comparator with dynamic bias background |
-
2015
- 2015-12-08 CN CN201510895732.6A patent/CN105406161B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203673A (en) * | 1995-12-14 | 1998-12-30 | 康宁股份有限公司 | Tunable optical coupler using photosensitive glass |
| CN103972632A (en) * | 2014-05-23 | 2014-08-06 | 大连海事大学 | Frequency-tunable micro-strip crossing directional coupler |
| CN104064847A (en) * | 2014-07-02 | 2014-09-24 | 大连海事大学 | Coupling degree tunable microstrip crossing directional coupler |
Non-Patent Citations (2)
| Title |
|---|
| Programmable SAW devices with diode bridge coupled through multi strip tapping electrode;Y. Aoki etc.;《Ultrasonics Symposium, 2001 IEEE》;20020807;23-26 * |
| 横跨定向耦合器的设计方法与应用研究;刘宏梅;《中国博士学位论文全文数据库 信息科技辑》;20170515;I135-18 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105406161A (en) | 2016-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105406161B (en) | A kind of degree of coupling it is adjustable and with restructural response across directional coupler | |
| US8294533B2 (en) | Power combiners and dividers based on composite right and left handed metamaterial structures | |
| CN103972632B (en) | Frequency-tunable micro-strip crossing directional coupler | |
| CN104319449B (en) | Wilkinson power distribution/synthesizer and its method for designing | |
| CN104064847B (en) | The tunable micro-band of a kind of degree of coupling is across directional coupler | |
| CN104579221A (en) | High frequency circuit module | |
| KR20100004440A (en) | Power divider and combiner using lumped elements | |
| US9184481B2 (en) | Power combiners and dividers based on composite right and left handed metamaterial structures | |
| CN102263542B (en) | Phase shifter and power amplifier thereof and magnetic resonance imaging device | |
| CN107395148A (en) | A kind of temperature compensation equalizing circuit of TR components | |
| CN110492214A (en) | The power splitters such as square coaxial transmission line Terahertz | |
| CN110474142A (en) | A kind of termination frequency becomes the double-frequency Wilkinson power divider of complex impedance | |
| CN108599734A (en) | Broadband active power splitter and broadband active power combiner | |
| CN109818127A (en) | A kind of Phase Continuation is adjustable across directional coupler | |
| CN108470968A (en) | It is a kind of termination etc. complex impedances across directional coupler | |
| WO2018120596A1 (en) | Quadrifilar helical antenna having dual-frequency broadband function | |
| CN102355222A (en) | Impedance matching system and impedance matching device | |
| CN102185572A (en) | Electrically-tuned gain equalizer circuit | |
| WO2018120595A1 (en) | Multiport dual-frequency broadband feed network | |
| CN101188443B (en) | A power divider, power division device and RF device | |
| CN207782760U (en) | Broadband active power splitter and broadband active power combiner | |
| WO2018121152A1 (en) | Circularly polarized antenna having dual-frequency broadband function | |
| WO2018120594A1 (en) | Dual-frequency broadband quadrifilar helical antenna | |
| CN104410381B (en) | Lumped parameter double frequency impedance matching network | |
| CN108987868A (en) | A kind of frequency-tunable planar Balun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Hongmei Inventor after: Fang Shaojun Inventor after: Zhou Yun Inventor before: Liu Hongmei Inventor before: Fang Shaojun |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 Termination date: 20181208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |