CN206023720U - A kind of clip level digital adjustable microwave limiter - Google Patents
A kind of clip level digital adjustable microwave limiter Download PDFInfo
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- CN206023720U CN206023720U CN201621030618.3U CN201621030618U CN206023720U CN 206023720 U CN206023720 U CN 206023720U CN 201621030618 U CN201621030618 U CN 201621030618U CN 206023720 U CN206023720 U CN 206023720U
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- pin diode
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Abstract
This utility model belongs to microwave technical field of information processing, specifically a kind of clip level digital adjustable microwave limiter.Amplitude limiter of the present utility model passes through control chip output data controlled quentity controlled variable, changed by DA chips again, the control voltage obtained after eventually passing amplifier is applied with PIN diode again, it is only necessary to which adjustment output digital quantity can just change the clipping parameter of whole amplitude limiter.Electric capacity and PIN diodes are installed using lamination, whole device compact conformation not only can be made, can also reduce, because of element, the impact to whole system parameter is installed.Each PIN diodes add spun gold to connect earthing mode using tube core, also reduce PIN diodes because the parameter caused by encapsulation affects.Clip level digital adjustable microwave limiter of the present utility model, overall structure are simple, facilitate implementation, and can pass through DA changers to clip level precise control, and can be designed by chip carry out integrated, with higher usability and motility.
Description
Technical field
This utility model belongs to microwave technical field of information processing, specifically a kind of clip level digital adjustable microwave limit
Width device.
Background technology
Existing microwave limiter mainly uses the conductance modulation principle oneself of PIN limiter diodes and produces DC current
Make diode current flow amplitude limit in the way of reaching reflected microwave signal.Slice level values by diode produce DC current and
The internal resistance of limiter diode affects, the slice level values about+10dBm of microwave limiter typically now.When needs difference or more
During low slice level values, need to meet application requirement in radar satellite communication at some.
Utility model content
This utility model is directed to above-mentioned deficiency, there is provided a kind of clip level digital adjustable microwave limiter.
This utility model is achieved in that a kind of clip level digital adjustable microwave limiter, and circuit board is by solid
Determine stud to be fixedly connected with shell with fixing screws, arrange on shell side radio frequency input connector and radio frequency out connector with
Circuit board is electrically connected；Radio frequency input connector external shielding layer ground connection, radio frequency input connector heart yearn and the positive levels of PIN diode D1
Connection, PIN diode D1 minus earths, radio frequency input connector heart yearn after PIN diode D1, then with PIN diode D2
Positive pole connect, PIN diode D2 minus earths, radio frequency input connector heart yearn after PIN diode D2 with PIN diode D3
Positive pole connects, and PIN diode D3 negative poles are grounded by electric capacity C1, and PIN diode D3 positive poles are grounded by inductance L1, bis- grades of PIN
Pipe D3 positive poles are connected with radio frequency out connector heart yearn, radio frequency out connector shielding layer grounding；
Operational amplifier U1 outfans are connected with PIN diode D3 negative poles by inductance L2；Operational amplifier U1 inputs
It is connected with DA conversion chip U2 outfans, DA conversion chip U2 inputs are connected with control chip U3.
Further, the board top surface is signals layer, and bottom surface is ground plane, and institute's art signals layer arranges control zone；Electricity
Component hole is set on the plate of road, and the PIN diodes D1 and PIN diode D2 is arranged in component hole, and positive pole is by connecting spun gold
It is connected with bus, negative pole is connected with ground plane；Electric capacity C1 is encapsulated for paster, and electric capacity C1 and PIN diode D3 is arranged at same
In component hole, electric capacity C1 is arranged at immediately below PIN diodes, and electric capacity C1 one end is connected with ground plane, the other end and PIN diodes
D3 negative poles connect, and PIN diodes positive pole is connected with bus by connecting spun gold；PIN diodes negative pole by connect spun gold and
The connection pad being arranged on signals layer is connected with inductance L2, and the inductance L2 other ends are exported with operational amplifier by connecting pad
End connection；It is thin that ground connection is set on signals layer, be grounded thin be electrically connected by grounding connection hole and ground plane, inductance L1 one end with
The connection of PIN diode D3 positive poles, the other end and the thin connection of ground connection.
Further, control zone also set up communication chip U4 control chips U3 described in communication chip U4 and communication interface while
Connection.
Further, control zone also set up power supply chip U5 described in power supply chip be connected with power interface, power supply chip U5
Do not electrically connect with communication chip U4 control chip U3, DA chip U2 and operational amplifier U1.
Clip level digital adjustable microwave limiter of the present utility model, is used as by exporting analog quantity using DA chips
Regulate signal, then logical operational amplifier raising load capacity, can reach the effect of precise control clip level, and for amplitude limit
The output valve of level adopts discrete control, can also realize remotely control, it is also possible to whole while improving control accuracy
Integrated and miniaturization realized by device.
Clip level digital adjustable microwave limiter of the present utility model, overall structure are simple, facilitate implementation, and can
By DA changers to clip level precise control, and can by chip design carry out integrated, with higher usability with
Motility.
Description of the drawings
Fig. 1 is this utility model schematic diagram.
Fig. 2 is this utility model internal structure schematic diagram.
A-A sectional views of the Fig. 3 for Fig. 2.
In accompanying drawing, 1- radio frequency input connectors, 2- shells, 3- signals layers, 4- circuit boards, 5- connection connection spun golds, 6- are penetrated
Frequency out connector, 7- are grounded thin, 8- ground planes, 9- fixed bolts, 10- component holes, 11- grounding connections hole, 12- connection welderings
Disk, 13- fixing screws, 14- communication interfaces, 15- power interfaces, 16- control zones, 17- bus.
Specific embodiment
In conjunction with Fig. 1 to Fig. 3, a kind of clip level digital adjustable microwave limiter, circuit board 4 pass through 9 He of fixed bolt
Fixing screws 13 are fixedly connected with shell 2, arrange radio frequency input connector 1 and radio frequency out connector 6 and electricity on 2 side of shell
Road plate 4 is electrically connected；1 external shielding layer of radio frequency input connector is grounded, and 1 heart yearn of radio frequency input connector is with PIN diode D1 just
Level connection, PIN diode D1 minus earths, 1 heart yearn of radio frequency input connector after PIN diode D1, then with PIN diode
D2 positive poles connect, PIN diode D2 minus earths, 1 heart yearn of radio frequency input connector after PIN diode D2 with bis- grades of PIN
Pipe D3 positive poles connect, and PIN diode D3 negative poles are grounded by electric capacity C1, and PIN diode D3 positive poles are grounded by inductance L1, PIN
Diode D3 positive poles are connected with 6 heart yearn of radio frequency out connector, 6 shielding layer grounding of radio frequency out connector；
Operational amplifier U1 outfans are connected with PIN diode D3 negative poles by inductance L2；Operational amplifier U1 inputs
It is connected with DA conversion chip U2 outfans, DA conversion chip U2 inputs are connected with control chip U3.
Further, 4 top surface of the circuit board is signals layer 3, and bottom surface is ground plane 8, and institute art signals layer 3 arranges control zone
16；Component hole 10 is set on circuit board 4, and the PIN diodes D1 and PIN diode D2 is arranged in component hole 10, and positive pole leads to
Cross connection spun gold 5 to be connected with bus 17, negative pole is connected with ground plane 8；Electric capacity C1 is encapsulated for paster, bis- grades of electric capacity C1 and PIN
Pipe D3 is arranged in identity element hole 10, and electric capacity C1 is arranged at immediately below PIN diodes, and electric capacity C1 one end is connected with ground plane 8,
The other end is connected with PIN diode D3 negative poles, and PIN diodes positive pole is connected with bus 17 by connecting spun gold 5；Bis- grades of PIN
Pipe negative pole is connected with inductance L2 by the connection pad 12 for connecting spun gold 5 and be arranged on signals layer 3, and the inductance L2 other ends pass through
Connection pad 12 is connected with operational amplifier output terminal；Ground connection thin 7 is set on signals layer 3, and ground connection thin 7 passes through grounding connection hole 11
It is electrically connected with ground plane 8, inductance L1 one end is connected with PIN diode D3 positive poles, the other end is connected with ground connection thin 7.
Further, control zone 16 also sets up communication chip U4 control chips U3 described in communication chip U4 and communication interface 14
It is simultaneously connected with.
Further, control zone 16 is also set up power supply chip described in power supply chip U5 and is connected with power interface 15, power supply core
Piece U5 is not electrically connected with communication chip U4 control chip U3, DA chip U2 and operational amplifier U1.
Operationally, signal is from radio frequency input connector for clip level digital adjustable microwave limiter of the present utility model
1 enters amplitude limiter, and due to the conductance modulation mechanism of PIN diode, PIN diode can go larger radiofrequency signal to carry out amplitude limit.
Different control signal digital quantities are exported by control chip U3, then is changed by DA chips, different controls can be obtained
Analogue signal processed, then by the conversion of operational amplifier, obtain final control analogue signal.By inductance L1 and inductance L2,
DC control signal insusceptibly can be connected on PIN diode D3.Electric capacity C1 provide high frequency channel for radio-frequency information.Logical
Cross change control signal digital quantity, thus it is possible to vary the output of operational amplifier, positive and negative by op-amp output voltage makes
Output violent change level is improved or is reduced, so as to reach the amplitude limit purpose to radiofrequency signal.
By way of electric capacity with the installation of PIN diode D3 laminations, greatly reduce and install to whole system parameter because of element
Impact, improve the overall performance of system.Each PIN diodes add connection spun gold 5 to connect earthing mode using tube core simultaneously, also drop
Low PIN diodes are affected because of the parameter caused by encapsulation.
Clip level digital adjustable microwave limiter of the present utility model, by the communication chip U4, Ke Yijie that arrange
The control information transmitted by communication interface 14 is received, so as to change the amplitude limit value of amplitude limiter.Set power supply chip U5 is each portion
Offer power supply is made in the division of labor.
Claims (4)
1. a kind of clip level digital adjustable microwave limiter, is characterized in that circuit board (4) by fixed bolt (9) and fixes
Screw (13) is fixedly connected with shell (2), arranges radio frequency input connector (1) and radio frequency out connector on shell (2) side
(6) it is electrically connected with circuit board (4)；Radio frequency input connector (1) external shielding layer be grounded, radio frequency input connector (1) heart yearn with
The positive level connections of PIN diode D1, PIN diode D1 minus earths, radio frequency input connector (1) heart yearn is through PIN diode D1
Afterwards, then with PIN diode D2 positive poles it is connected, PIN diode D2 minus earths, radio frequency input connector (1) heart yearn is through PIN bis-
It is connected with PIN diode D3 positive poles after level pipe D2, PIN diode D3 negative poles are grounded by electric capacity C1, PIN diode D3 positive poles lead to
Inductance L1 ground connection is crossed, PIN diode D3 positive poles are connected with radio frequency out connector (6) heart yearn, and radio frequency out connector (6) is shielded
Layer ground connection；
Operational amplifier U1 outfans are connected with PIN diode D3 negative poles by inductance L2；Operational amplifier U1 inputs and DA
Conversion chip U2 outfan connections, DA conversion chip U2 inputs are connected with control chip U3.
2. clip level digital adjustable microwave limiter according to claim 1, is characterized in that, circuit board (4)
Top surface be signals layer (3), bottom surface be ground plane (8), institute's art signals layer (3) arrange control zone (16)；Circuit board (4) is upper to arrange unit
Part hole (10), the PIN diodes D1 and PIN diode D2 are arranged in component hole (10), positive pole by connect spun gold (5) with
Bus (17) connects, and negative pole is connected with ground plane (8)；Electric capacity C1 is encapsulated for paster, and electric capacity C1 and PIN diode D3 is arranged at
In identity element hole (10), electric capacity C1 is arranged at immediately below PIN diodes, and electric capacity C1 one end is connected with ground plane (8), the other end
It is connected with PIN diode D3 negative poles, PIN diodes positive pole is connected with bus (17) by connecting spun gold (5)；PIN diodes
Negative pole is connected with inductance L2 by the connection pad (12) for connecting spun gold (5) and be arranged on signals layer (3), the inductance L2 other ends
It is connected with operational amplifier U1 outfans by connecting pad (12)；The upper setting of signals layer (3) is grounded thin (7), is grounded thin (7) and leads to
Cross grounding connection hole (11) and ground plane (8) to be electrically connected, inductance L1 one end is connected with PIN diode D3 positive poles, the other end and
It is grounded thin (7) connection.
3. clip level digital adjustable microwave limiter according to claim 2, is characterized in that, control zone (16) also set
Put communication chip U4 control chips U3 described in communication chip U4 and communication interface (14) is simultaneously connected with.
4. clip level digital adjustable microwave limiter according to claim 3, is characterized in that, control zone (16) also set
Put power supply chip described in power supply chip U5 to be connected with power interface (15), power supply chip U5 not with communication chip U4 control chips
U3, DA chip U2 and operational amplifier U1 electrical connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621030618.3U CN206023720U (en) | 2016-08-31 | 2016-08-31 | A kind of clip level digital adjustable microwave limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621030618.3U CN206023720U (en) | 2016-08-31 | 2016-08-31 | A kind of clip level digital adjustable microwave limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023720U true CN206023720U (en) | 2017-03-15 |
Family
ID=58258572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621030618.3U Active CN206023720U (en) | 2016-08-31 | 2016-08-31 | A kind of clip level digital adjustable microwave limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206023720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115865014A (en) * | 2023-01-17 | 2023-03-28 | 四川斯艾普电子科技有限公司 | Integrated amplitude limiting field amplifier and preparation method thereof |
-
2016
- 2016-08-31 CN CN201621030618.3U patent/CN206023720U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115865014A (en) * | 2023-01-17 | 2023-03-28 | 四川斯艾普电子科技有限公司 | Integrated amplitude limiting field amplifier and preparation method thereof |
| CN115865014B (en) * | 2023-01-17 | 2023-05-30 | 四川斯艾普电子科技有限公司 | Integrated amplitude limiting field amplifier and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |