CN104966861B - Switching line phase modulation circuit with microstrip line adjusting means - Google Patents
Switching line phase modulation circuit with microstrip line adjusting means Download PDFInfo
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- CN104966861B CN104966861B CN201510383758.2A CN201510383758A CN104966861B CN 104966861 B CN104966861 B CN 104966861B CN 201510383758 A CN201510383758 A CN 201510383758A CN 104966861 B CN104966861 B CN 104966861B
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Abstract
The invention discloses the switching line phase modulation circuit with microstrip line adjusting means, it is characterised in that：Including 4 diodes, 4 diodes are respectively：First diode, second diode, 3rd diode, 4th diode, the negative pole of first diode is connected with the positive pole of the 3rd diode, the negative pole of 4th diode is connected with the positive pole of the second diode, the negative pole of second diode is connected by short microstrip transmission line with the positive pole of the first diode, the negative pole of 3rd diode is connected by long microstrip transmission line with the positive pole of the 4th diode, line between first diode and the 3rd diode is also connected to the output end of the first electric capacity of access signal, line between 4th diode and the second diode is also associated with the input of the second electric capacity.
Description
Technical field
The present invention relates to phase-modulated signal technology, in particular to the switching line phase modulation circuit with microstrip line adjusting means.
Background technology
Phase modulation, which is realized, common are three kinds of methods, be variable phase-shifting method phase modulation, variable time delay method phase modulation, Vector modulation respectively
Method phase modulation.When input microwave changes, above-mentioned common phase modulation method then needs to change substantial amounts of part, namely according to defeated
Enter microwave parameters and a set of corresponding phase modulation circuit is set in addition, therefore above-mentioned three kinds of phase modulation methods are not suitable with radar front end skill very much
Art.It would therefore be desirable to which designing one kind simply adapts to different microwaves inputs, and design a set of phase modulation circuit being easily varied.
The content of the invention
It is different to adapt to it is an object of the invention to provide a kind of switching line phase modulation circuit with microstrip line adjusting means
Microwave inputs, and designs a set of phase modulation circuit being easily varied.
The purpose of the present invention is achieved through the following technical solutions：Switching line phase modulation electricity with microstrip line adjusting means
Road, including 4 diodes, 4 diodes are respectively：First diode, the second diode, the 3rd diode, the 4th diode,
The negative pole of first diode is connected with the positive pole of the 3rd diode, and the negative pole of the 4th diode and the positive pole of the second diode connect
Connect, the negative pole of the second diode is connected by short microstrip transmission line with the positive pole of the first diode, and the negative pole of the 3rd diode leads to
Long microstrip transmission line is connected with the positive pole of the 4th diode, and the line between the diode of the first diode the 3rd, which is also connected to, to be connect
Enter the output end of the first electric capacity of signal, the line between the 4th diode and the second diode is also associated with the defeated of the second electric capacity
Entering end, in addition to be connected with the first inverting amplifier of phase-modulated signal, the first inverting amplifier is in series with the second inverting amplifier,
Second inverting amplifier is in series with resistance, and the input of resistance is connected with the second inverting amplifier, the 4th diode and the two or two
The output end connection of line and resistance between pole pipe, the line between the first inverting amplifier and the second inverting amplifier, which draws, to be connect
To the output end of the first electric capacity；Also include microstrip line adjusting means, microstrip line adjusting means includes medium substrate, on medium substrate
Multiple microstrip lines are provided with, the welded gaps for being used for filling welding body be present between microstrip line, medium substrate is arranged above
Suspension plate, the roll adjustment screw equal with microstrip line quantity is installed, roll adjustment screw is located at directly over welded gaps, micro- in suspension plate
Quantity with line adjusting means has 2, and the microstrip line of first microstrip line adjusting means forms short microstrip transmission line, and second micro-
Microstrip line with line adjusting means forms long microstrip transmission line, the roll adjustment screw of first microstrip line adjusting means and the two or two pole
The negative pole connection of pipe, first microstrip line of first microstrip line adjusting means are connected with the positive pole of the first diode, second
The roll adjustment screw of microstrip line adjusting means is connected with the negative pole of the 3rd diode, and first of second microstrip line adjusting means is micro-
It is connected with line with the positive pole of the 4th diode.
The design principle of foregoing circuit is：After using foregoing circuit design, due to using different micro- of two length
Band transmission line is set in circuit, (or other any microwave transmission lines), the first diode, the second diode, the 3rd
Diode, the 4th diode are the consistent PIN diodes of 4 performances.When both sides diode complementary biases, the first diode,
During the second diode current flow, the 3rd diode, the 4th diode are in cut-off state, and CF signal passes through short microstrip transmission line
It is defeated.Conversely, when the first diode, the second diode end, the 3rd diode, the 4th diode are in conducting state, carrier frequency letter
Number through long microstrip transmission line transmit.It will be apparent that because long microstrip transmission line is different with short microstrip transmission line length, thus cause phase
Shifting acts on.
In order to change the length of the length of long microstrip transmission line and short microstrip transmission line, the present invention is designed with special micro-strip
Line adjusting means, in the present invention, 2 microstrip line adjusting meanss be present, this 2 microstrip line adjusting meanss control long micro-strip respectively
The length of the length of transmission line and short microstrip transmission line, for example, in the present invention, it is assumed that the length of each microstrip line is 3cm,
When I needs 6cm long microstrip transmission line, then we are in first microstrip line of second microstrip line adjusting means and second
Welding forms welding body between microstrip line, while also welding forms welding between second microstrip line and the 3rd microstrip line
Body, the roll adjustment screw above the welded gaps between second microstrip line and the 3rd microstrip line is rotated, by under the roll adjustment screw
It is pressed onto between second microstrip line and the 3rd microstrip line in welding body, forms path, first microstrip line and second micro-strip
Line turns into effective long microstrip transmission line.The design principle of short microstrip transmission line is consistent with the operation of above-mentioned long microstrip transmission line,
This is repeated no more again.By this above-mentioned device, the length of long microstrip transmission line and short micro-strip can effectively and be quickly set
The length of transmission line, so as to reach the purpose for adapting to different microwave inputs.
In foregoing circuit,
The output end of second electric capacity is also connected in series to the input of isolator.
First diode, the second diode, the 3rd diode, the 4th diode are PIN diodes.
The length of long microstrip transmission line is more than the length of short microstrip transmission line.
Set in circuit using the different microstrip transmission line of two length, (or other any microwave transmission lines),
First diode, the second diode, the 3rd diode, the 4th diode are the consistent PIN diodes of 4 performances.When both sides two
During the complementary biasing of pole pipe, when the first diode, the second diode current flow, the 3rd diode, the 4th diode are in cut-off shape
State, CF signal transmit through short microstrip transmission line.Conversely, when the first diode, the second diode end, the 3rd diode, the
Four diodes are in conducting state, and CF signal transmits through long microstrip transmission line.It will be apparent that due to long microstrip transmission line and short micro-
Band length of transmission line is different, thus causes phase shift to act on.Assuming that the length of long microstrip transmission line is more than the length of short microstrip transmission line
Degree.Then phase modulation phase is:F=B（L2- L1）=2 π/Q* △ L, B is transmission line phase constant, and Q is waveguide wavelength, and △ L are micro- for length
Length with transmission line subtracts the length of short microstrip transmission line.Therefore, 0/ π phase modulation, then, the length of long microstrip transmission line to be realized
The length for subtracting short microstrip transmission line is △ L, and the waveguide wavelength of input is Q, and △ L are Q half.Therefore when microwave signal changes
When, i.e. when input waveguide wavelength Q changes, we only need to change the length of long microstrip transmission line and short microstrip transmission line
Length, you can adapt to the change of this microwave signal, without change circuit in other electronic components, and long micro-strip pass
The length of defeated line and the length of short microstrip transmission line are easiest to change, it is only necessary to carry out welding different long microstrip transmission lines
With short microstrip transmission line, it is quick that operation is very easy, especially adapts to the phase modulation circuit of experiment, is also particularly suited for use in thunder
Phase modulation up to microwave is handled.
In summary, the beneficial effects of the invention are as follows：0/ π phase modulation can be caused, can also be according to the parameter of input waveguide
The corresponding length for setting long microstrip transmission line and short microstrip transmission line, so as to adapt to varying input signal, can cause 0/ π's
Phase modulation.
Brief description of the drawings
Fig. 1 is the circuit diagram of the present invention.
Fig. 2 is the schematic diagram of microstrip line adjusting means.
It is entitled corresponding to reference in accompanying drawing：C1, the first electric capacity, C2, the second electric capacity, P1, the first paraphase amplification
Device, P2, the second inverting amplifier, D1, the first diode, D2, the second diode, D3, the 3rd diode, D4, the 4th diode,
G, isolator, R, resistance, L1, short microstrip transmission line, L2, long microstrip transmission line.1st, medium substrate, 2, supporter, 3, roll adjustment spiral shell
Nail, 4, microstrip line, 5, suspension plate, 6, welding body.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited
In this.
Embodiment 1：
As shown in Figure 1 to Figure 2,
The purpose of the present invention is achieved through the following technical solutions：Switching line phase modulation electricity with microstrip line adjusting means
Road, including 4 diodes, 4 diodes are respectively：First diode D1, the second diode D2, the 3rd diode D3, the 4th
Diode D4, the first diode D1 negative pole are connected with the 3rd diode D3 positive pole, the 4th diode D4 negative pole and second
Diode D2 positive pole connection, the second diode D2 negative pole are connected by short microstrip transmission line L1 and the first diode D1 positive pole
Connect, the 3rd diode D3 negative pole is connected by long microstrip transmission line L2 with the 4th diode D4 positive pole, the first diode D1
Line between the 3rd diode D3 is also connected to the first electric capacity C1 of access signal output end, the 4th diode D4 and the
Line between two diode D2 is also associated with the second electric capacity C2 input, in addition to is connected with the first paraphase of phase-modulated signal
Amplifier P1, the first inverting amplifier P1 are in series with the second inverting amplifier P2, the second inverting amplifier P2 and are in series with resistance R,
Resistance R input is connected with the second inverting amplifier P2, the line between the 4th diode D4 and the second diode D2 and electricity
R output end connection is hindered, the line between the first inverting amplifier P1 and the second inverting amplifier P2, which draws, is connected to the first electric capacity C1
Output end.
As shown in Fig. 2 also including microstrip line adjusting means, microstrip line adjusting means includes medium substrate 1, medium substrate 1
On be provided with multiple microstrip lines 4, the welded gaps for being used for filling welding body 6 between microstrip line 4 be present, directly over medium substrate 1
Suspension plate 5 is provided with, the roll adjustment screw 3 equal with the quantity of microstrip line 4 is installed, roll adjustment screw 3 is between welding in suspension plate 5
Directly over gap, the quantity of microstrip line adjusting means has 2, and the microstrip line of first microstrip line adjusting means forms short micro-strip transmission
Line L1, the microstrip line of second microstrip line adjusting means form long microstrip transmission line L2, the tune of first microstrip line adjusting means
It is connected away from screw 3 with the second diode D2 negative pole, first microstrip line of first microstrip line adjusting means and the one or two pole
Pipe D1 positive pole connection, the roll adjustment screw 3 of second microstrip line adjusting means are connected with the 3rd diode D3 negative pole, second
First microstrip line of microstrip line adjusting means is connected with the 4th diode D4 positive pole.Medium substrate 1 is supported using supporter 2
Play suspension plate.
The design principle of foregoing circuit is：After using foregoing circuit design, due to using different micro- of two length
Band transmission line is set in circuit, (or other any microwave transmission lines), the first diode, the second diode, the 3rd
Diode, the 4th diode are the consistent PIN diodes of 4 performances.When both sides diode complementary biases, the first diode,
During the second diode current flow, the 3rd diode, the 4th diode are in cut-off state, and CF signal passes through short microstrip transmission line
It is defeated.Conversely, when the first diode, the second diode end, the 3rd diode, the 4th diode are in conducting state, carrier frequency letter
Number through long microstrip transmission line transmit.It will be apparent that because long microstrip transmission line is different with short microstrip transmission line length, thus cause phase
Shifting acts on.
As shown in Fig. 2 and Fig. 1, in order to change the length of the length of long microstrip transmission line and short microstrip transmission line, the present invention
Special microstrip line adjusting means is designed with, in the present invention, 2 microstrip line adjusting meanss be present, this 2 microstrip line regulation dresses
The length for controlling long microstrip transmission line respectively and the length of short microstrip transmission line are put, for example, in the present invention, it is assumed that each is micro-
Length with line is 3cm, when I needs 6cm long microstrip transmission line, then we in second microstrip line adjusting means first
Welding forms welding body 6 between individual microstrip line and second microstrip line, while also in second microstrip line and the 3rd microstrip line
Between welding form welding body 6, and do not weld to form welding between remaining microstrip line in second microstrip line adjusting means
Body 6, therefore, other remaining microstrip lines can not form a part for effective long microstrip transmission line, rotate second microstrip line with
The roll adjustment screw 3 above welded gaps between 3rd microstrip line, the roll adjustment screw 3 is depressed into second microstrip line and
Between three microstrip lines in welding body 6, path is formed, first microstrip line and second microstrip line turn into effective long micro-strip and passed
Defeated line.The design principle of short microstrip transmission line is consistent with the operation of above-mentioned long microstrip transmission line, then this is repeated no more.By above-mentioned
This device, the length of long microstrip transmission line and the length of short microstrip transmission line can effectively and be quickly set, so as to reach
Adapt to the purpose of different microwave inputs.
Second electric capacity C2 output end is also connected in series to isolator G input.
First diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 are PIN diodes.
Long microstrip transmission line L2 length is more than short microstrip transmission line L1 length.
Set in circuit using the different microstrip transmission line of two length, (or other any microwave transmission lines),
First diode, the second diode, the 3rd diode, the 4th diode are the consistent PIN diodes of 4 performances.When both sides two
During the complementary biasing of pole pipe, when the first diode, the second diode current flow, the 3rd diode, the 4th diode are in cut-off shape
State, CF signal transmit through short microstrip transmission line.Conversely, when the first diode, the second diode end, the 3rd diode, the
Four diodes are in conducting state, and CF signal transmits through long microstrip transmission line.It will be apparent that due to long microstrip transmission line and short micro-
Band length of transmission line is different, thus causes phase shift to act on.Assuming that long microstrip transmission line L2 length is more than short microstrip transmission line L1
Length.Then phase modulation phase is:F=B（L2- L1）=2 π/Q* △ L, B is transmission line phase constant, and Q is waveguide wavelength, and △ L are
Long microstrip transmission line L2 length subtracts short microstrip transmission line L1 length.Therefore, to realize 0/ π phase modulation, then, and long micro-strip transmission
The length that line L2 length subtracts short microstrip transmission line L1 is △ L, and the waveguide wavelength of input is Q, and △ L are Q half.
As described above, the present invention can be then realized well.
Claims (3)
1. the switching line phase modulation circuit with microstrip line adjusting means, it is characterised in that：Including 4 diodes, 4 diodes point
It is not：First diode（D1）, the second diode（D2）, the 3rd diode（D3）, the 4th diode（D4）, the first diode
（D1）Negative pole and the 3rd diode（D3）Positive pole connection, the 4th diode（D4）Negative pole and the second diode（D2）Just
Pole connects, the second diode（D2）Negative pole pass through short microstrip transmission line（L1）With the first diode（D1）Positive pole connection, the
Three diodes（D3）Negative pole pass through long microstrip transmission line（L2）With the 4th diode（D4）Positive pole connection, the first diode
（D1）With the 3rd diode（D3）Between line be also connected to access signal the first electric capacity（C1）Output end, the four or two pole
Pipe（D4）With the second diode（D2）Between line be also associated with the second electric capacity（C2）Input, in addition to be connected with phase modulation
First inverting amplifier of signal（P1）, the first inverting amplifier（P1）It is in series with the second inverting amplifier（P2）, the second paraphase
Amplifier（P2）It is in series with resistance（R）, resistance（R）Input and the second inverting amplifier（P2）Connection, the 4th diode
（D4）With the second diode（D2）Between line and resistance（R）Output end connection, the first inverting amplifier（P1）With second
Inverting amplifier（P2）Between line draw and be connected to the first electric capacity（C1）Output end；Also include microstrip line adjusting means, micro-strip
Line adjusting means includes medium substrate（1）, medium substrate（1）On be provided with multiple microstrip lines（4）, microstrip line（4）Between exist
For filling welding body（6）Welded gaps, medium substrate（1）It is arranged above suspension plate（5）, suspension plate（5）Upper installation
Have and microstrip line（4）The equal roll adjustment screw of quantity（3）, roll adjustment screw（3）Directly over welded gaps, microstrip line regulation dress
The quantity put has 2, and the microstrip line of first microstrip line adjusting means forms short microstrip transmission line（L1）, second microstrip line tune
The microstrip line of regulating device forms long microstrip transmission line（L2）, the roll adjustment screw of first microstrip line adjusting means（3）With the two or two
Pole pipe（D2）Negative pole connection, first microstrip line of first microstrip line adjusting means and the first diode（D1）Positive pole connect
Connect, the roll adjustment screw of second microstrip line adjusting means（3）With the 3rd diode（D3）Negative pole connection, second microstrip line adjust
First microstrip line of regulating device and the 4th diode（D4）Positive pole connection;
Second electric capacity（C2）Output end be also connected in series to isolator（G）Input;
Long microstrip transmission line（L2）Length subtract short microstrip transmission line（L1）Length be △ L, the waveguide wavelength of input is Q,
△ L are Q half.
2. the switching line phase modulation circuit according to claim 1 with microstrip line adjusting means, it is characterised in that：One or two
Pole pipe（D1）, the second diode（D2）, the 3rd diode（D3）, the 4th diode（D4）It is PIN diodes.
3. the switching line phase modulation circuit according to claim 1 with microstrip line adjusting means, it is characterised in that：Long micro-strip
Transmission line（L2）Length be more than short microstrip transmission line（L1）Length.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510383758.2A CN104966861B (en) | 2015-07-03 | 2015-07-03 | Switching line phase modulation circuit with microstrip line adjusting means |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510383758.2A CN104966861B (en) | 2015-07-03 | 2015-07-03 | Switching line phase modulation circuit with microstrip line adjusting means |
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| CN104966861B true CN104966861B (en) | 2018-01-30 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5208564A (en) * | 1991-12-19 | 1993-05-04 | Hughes Aircraft Company | Electronic phase shifting circuit for use in a phased radar antenna array |
| JPH0897602A (en) * | 1994-09-22 | 1996-04-12 | Fujitsu Ltd | Phase shifter |
| CN101202369A (en) * | 2007-12-11 | 2008-06-18 | 中国电子科技集团公司第五十五研究所 | Miniature MEMS switching line phase shifter |
| CN102148416A (en) * | 2010-11-24 | 2011-08-10 | 南京理工大学 | Microwave and millimeter wave ultra wide band six-bit microwave monolithic integrated circuit (MMIC) digital phase shifter |
| CN102185579A (en) * | 2011-01-20 | 2011-09-14 | 西安空间无线电技术研究所 | Micro-wave linear analog phase modulator at X frequency range |
| CN204732503U (en) * | 2015-07-03 | 2015-10-28 | 四川莱源科技有限公司 | With the switching line phase modulation circuit of microstrip line adjusting device |
-
2015
- 2015-07-03 CN CN201510383758.2A patent/CN104966861B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5208564A (en) * | 1991-12-19 | 1993-05-04 | Hughes Aircraft Company | Electronic phase shifting circuit for use in a phased radar antenna array |
| JPH0897602A (en) * | 1994-09-22 | 1996-04-12 | Fujitsu Ltd | Phase shifter |
| CN101202369A (en) * | 2007-12-11 | 2008-06-18 | 中国电子科技集团公司第五十五研究所 | Miniature MEMS switching line phase shifter |
| CN102148416A (en) * | 2010-11-24 | 2011-08-10 | 南京理工大学 | Microwave and millimeter wave ultra wide band six-bit microwave monolithic integrated circuit (MMIC) digital phase shifter |
| CN102185579A (en) * | 2011-01-20 | 2011-09-14 | 西安空间无线电技术研究所 | Micro-wave linear analog phase modulator at X frequency range |
| CN204732503U (en) * | 2015-07-03 | 2015-10-28 | 四川莱源科技有限公司 | With the switching line phase modulation circuit of microstrip line adjusting device |
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| CN104966861A (en) | 2015-10-07 |
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Effective date of registration: 20181123 Address after: 610000 Xinchuang Road, West District, Chengdu High-tech Zone, Sichuan Province Patentee after: Sichuan Di Information Technology Co., Ltd. Address before: 610000 Longtan Industrial Park, two section of Chenghua District East Three Ring Road, Chengdu, Sichuan. Patentee before: SICHUAN LAIYUAN TECHNOLOGY CO., LTD. |