CN207475498U - A kind of passive high-power absorption limiter - Google Patents
A kind of passive high-power absorption limiter Download PDFInfo
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- CN207475498U CN207475498U CN201721889775.4U CN201721889775U CN207475498U CN 207475498 U CN207475498 U CN 207475498U CN 201721889775 U CN201721889775 U CN 201721889775U CN 207475498 U CN207475498 U CN 207475498U
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- limiter
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- bridge circuits
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Abstract
The utility model discloses a kind of passive high-power absorption limiters, and including the identical amplitude limiter circuit of two 3dB bridge circuits and two structures, two amplitude limiter circuits are connected in parallel, and both ends are connected separately with 3dB bridge circuits；The amplitude limiter circuit includes two capacitances, an inductance and four groups of limiter diodes, and two capacitances are connected in series with, and four groups of limiter diodes are connected in parallel between two capacitances, is also connected in parallel that there are one inductance between two capacitances.High-power signal can be supported absorption by the 3dB bridge circuits of the utility model input terminal; and low power signal is divided into after two-way by 3dB bridge circuits and carries out amplitude limit respectively; it is synthesized again with 3dB bridge circuits, powerful signal can be born, and follow-up component can be protected.
Description
Technical field
The utility model is related to a kind of passive high-power absorption limiters, belong to limiter field.
Background technology
Limiter is the characteristic changed using the junction resistance of PIN diode with forward current size, realizes and radio frequency is believed
Number reflection loss.When radiofrequency signal is smaller, PIN diode does not turn on, and high resistant is presented in diode on the transmission line in parallel
Anti-, signal is successfully transferred to output terminal load；When signal gradually increases, PIN diode forward conduction, junction resistance becomes smaller, shape
Into the short-circuit face on transmission line, most of power is reflected, and the signal for being transferred to output terminal load greatly reduces and keeps power
Constant, which cannot damage Sensitive Apparatus, realize the purpose of protection Sensitive Apparatus.The high-power limit of current limiter
Width device is mostly reflective, it is impossible to effective protection receiver.
Invention content
The purpose of this utility model is to provide a kind of passive high-power absorption limiter, which can bear big work(
Rate signal, and protect follow-up component.
The purpose of this utility model is achieved through the following technical solutions：
A kind of passive high-power absorption limiter, including the identical amplitude limit electricity of two 3dB bridge circuits and two structures
Road, two amplitude limiter circuits are connected in parallel, and both ends are connected separately with 3dB bridge circuits, positioned at the 3dB bridge circuits of input terminal
For receiving input signal, a port connects a port with load；Positioned at a port of the 3dB bridge circuits of output terminal
Output signal output is connected, a port is connected with load；
The amplitude limiter circuit includes two capacitances, an inductance and four groups of limiter diodes, and two capacitances are connected in series with, and four
Group limiter diode is connected in parallel between two capacitances, is also connected in parallel between two capacitances there are one inductance；Wherein, first
The PIN diode that group limiter diode includes four in the same direction and is connected in parallel, second group of limiter diode and third group amplitude limit two
Pole pipe structure is identical, including two in the same direction and the PIN diodes that are connected in parallel, the 4th group of limiter diode include two in the same direction and
The PIN diode being connected in parallel, in first group of limiter diode, second group of limiter diode and third group limiter diode
PIN diode direction it is identical, and direction for forward direction；PIN diode and first group of amplitude limit two in 4th group of limiter diode
The PIN diode direction of pole pipe is opposite.
The utility model has the advantages that：
(1) high-power signal can be supported absorption by the 3dB bridge circuits of input terminal, and low power signal is by 3dB
Bridge circuit is divided into after two-way carries out amplitude limit, then synthesized with 3dB bridge circuits respectively, can bear powerful signal, and
And follow-up component can be protected；
(2) it realizes amplitude limit using four groups of limiter diodes, limiter can not only be accomplished to minimize, can also bear big work(
Rate；
(3) limiter diode is in parallel using multiple PIN diodes, and it is low low with leakage power that insertion loss can be achieved at the same time；
(4) it is simple in structure, reasonable design, at low cost.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
It is marked in figure：1st, the first 3dB bridge circuits；2nd, the 2nd 3dB bridge circuits；3rd, amplitude limiter circuit；31st, the first capacitance；
32nd, first group of limiter diode；33rd, second group of limiter diode；34th, third group limiter diode；35th, the 4th group of two pole of amplitude limit
Pipe；36th, inductance；37th, the second capacitance.
Specific embodiment
As shown in Figure 1, passive high-power absorption limiter provided in this embodiment includes the first 3dB bridge circuits 1, the
Two 3dB bridge circuits 2 amplitude limiter circuit 3 identical with two structures, the IN input terminals of the first 3dB bridge circuits 1 are believed for inputting
Number, LOAD input is used to connect with load, and output terminal is connected in parallel two amplitude limiter circuits 3, the output terminal of two amplitude limiter circuits 3
It is connect with the 2nd 3dB bridge circuits 2, the OUT output terminals of the 2nd 3dB bridge circuits 2 are for output signal, another output terminal
It is connected with load.
The amplitude limiter circuit 3 includes 31, first groups of the first capacitance, 32, second groups of limiter diode limiter diode 33, the
Three groups of limiter diodes 34, the 4th group of limiter diode 35,36 and second capacitance 37 of inductance, the first capacitance 31 and the second capacitance 37
It is connected in series with, 34, the 4th groups of first group of limiter diode, 32, second groups of limiter diodes 33, third group limiter diode amplitude limits
Diode 35 and inductance 36 are connected in parallel between the first capacitance 31 and the second capacitance 37, wherein, first group of limiter diode 32
Including four PIN diodes that are in the same direction and being connected in parallel, 34 structure of second group of limiter diode 33 and third group limiter diode
Identical, including two PIN diodes that are in the same direction and being connected in parallel, the 4th group of limiter diode 35 also includes two in the same direction and parallel connection
The PIN diode of connection, described first group of limiter diode, 32, second groups of limiter diodes 33 and third group limiter diode 34
In PIN diode direction it is identical, and direction for forward direction, i.e., PIN diode N-terminal ground connection；In 4th group of limiter diode 35
PIN diode and first group of limiter diode 32 PIN diode direction on the contrary, and direction is reversed, i.e. PIN diode
P ends are grounded.
The workflow of the utility model is：It is high-power in the input terminal input power signal of the first 3dB bridge circuits 1
The load absorption that signal is connected by the LOAD input of the first 3dB bridge circuits 1, protects the component subsequently connected；And its
His power signal is divided into two-way power signal by the first 3dB bridge circuits 1, and enters the identical two-way amplitude limiter circuit 3 of structure, limit
Width circuit 3 after being synthesized again by the 2nd 3dB bridge circuits 2 after power signal amplitude limit to exporting.Amplitude limit provided by the utility model
Device circuit does not need to additional power source at work, and tolerance power is improved by four groups of limiter diodes.
The above is only the utility model preferred embodiment, but the scope of protection of the utility model is not limited to
This, any transformation carried out based on technical solution provided by the utility model and utility model design and replacement should all be covered
In the scope of protection of the utility model.
Claims (1)
1. a kind of passive high-power absorption limiter, it is characterised in that：It is identical including two 3dB bridge circuits and two structures
Amplitude limiter circuit, two amplitude limiter circuits are connected in parallel, and both ends are connected separately with 3dB bridge circuits, positioned at input terminal 3dB electricity
For receiving input signal, a port connects a port of bridge circuit with load；Positioned at the 3dB bridge circuits of output terminal
A port connects output signal output, and a port is connected with load；
The amplitude limiter circuit includes two capacitances, an inductance and four groups of limiter diodes, and two capacitances are connected in series with, four groups of limits
Width diodes in parallel is connected between two capacitances, is also connected in parallel between two capacitances there are one inductance；Wherein, first group of limit
The PIN diode that width diode includes four in the same direction and is connected in parallel, second group of limiter diode and third group limiter diode
Structure is identical, and including two PIN diodes that are in the same direction and being connected in parallel, the 4th group of limiter diode includes two in the same direction and parallel connection
The PIN diode of connection, in first group of limiter diode, second group of limiter diode and third group limiter diode
PIN diode direction is identical, and direction is forward direction；PIN diode and first group of two pole of amplitude limit in 4th group of limiter diode
The PIN diode direction of pipe is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889775.4U CN207475498U (en) | 2017-12-29 | 2017-12-29 | A kind of passive high-power absorption limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889775.4U CN207475498U (en) | 2017-12-29 | 2017-12-29 | A kind of passive high-power absorption limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207475498U true CN207475498U (en) | 2018-06-08 |
Family
ID=62257634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721889775.4U Active CN207475498U (en) | 2017-12-29 | 2017-12-29 | A kind of passive high-power absorption limiter |
Country Status (1)
| Country | Link |
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| CN (1) | CN207475498U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661503A (en) * | 2019-10-31 | 2020-01-07 | 中国电子科技集团公司第十三研究所 | Ultrahigh power amplitude limiter |
| CN114793098A (en) * | 2022-06-23 | 2022-07-26 | 成都世源频控技术股份有限公司 | Self-adaptive high-power amplitude limiting circuit with fast recovery |
-
2017
- 2017-12-29 CN CN201721889775.4U patent/CN207475498U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661503A (en) * | 2019-10-31 | 2020-01-07 | 中国电子科技集团公司第十三研究所 | Ultrahigh power amplitude limiter |
| CN114793098A (en) * | 2022-06-23 | 2022-07-26 | 成都世源频控技术股份有限公司 | Self-adaptive high-power amplitude limiting circuit with fast recovery |
| CN114793098B (en) * | 2022-06-23 | 2022-09-20 | 成都世源频控技术股份有限公司 | Self-adaptive high-power amplitude limiting circuit with fast recovery |
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