CN209517076U - A kind of high-power 30-88MHz quadravalence cavity bounce frequency filter - Google Patents
A kind of high-power 30-88MHz quadravalence cavity bounce frequency filter Download PDFInfo
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- CN209517076U CN209517076U CN201920247356.3U CN201920247356U CN209517076U CN 209517076 U CN209517076 U CN 209517076U CN 201920247356 U CN201920247356 U CN 201920247356U CN 209517076 U CN209517076 U CN 209517076U
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Abstract
The utility model proposes a kind of high-power 30-88MHz quadravalence cavity bounce frequency filters can remove the reflection signal generated on transmission link, to promote source benefit by the first impedance matching box of setting and the second impedance matching box；By the first resonance circuit of setting, the second resonance circuit, third resonance circuit and the 4th resonance circuit, the highly inhibited energy of bounce frequency filter and the inhibition of the transmitter signal to other frequencies are improved；Pass through the first PIN diode array of setting, the second PIN diode array, third PIN diode array and the 4th PIN diode array, achieve the purpose that change resonant capacitance value to control the on and off of PIN diode by changing the voltage of digital control circuit output, it realizes fast frequency hopping, mentions high-frequency highly selective；By the first Air Coupling window of setting, the second Air Coupling window and third Air Coupling window, the function of the useless clutter for filtering out front end generation and impedance transformation is realized.
Description
Technical field
The utility model relates to wireless communication field more particularly to a kind of high-power 30-88MHz quadravalence cavity frequency hopping filtering
Device.
Background technique
In the army and the people's application, high power frequency hopping filter is used for transmitter power amplifier output port, is a kind of variable
Bandpass filter needs it to have low-loss, high the performances such as inhibit, be switched fast.It is to the highly selective of frequency, before filtering out
The useless clutter generated is held, and has stronger inhibition to the transmitter signal of other frequencies, is had to system rejection to disturbance ability
Very big promotion.High power frequency hopping filter is difficult to take into account in the inhibition of low-loss height at present, and heat dissipation effect is bad, and the service life is not
It is long.Therefore, to solve the above problems, the utility model provides and a kind of has high degree of suppression, low-loss, excellent heat radiation performance and reliable
The high high-power 30-88MHz quadravalence cavity bounce frequency filter of property.
Utility model content
In view of this, the utility model proposes one kind to have high degree of suppression, low-loss, excellent heat radiation performance and high reliablity
High-power 30-88MHz quadravalence cavity bounce frequency filter.
The technical solution of the utility model is achieved in that the utility model provides a kind of high-power 30-88MHz tetra-
Rank cavity bounce frequency filter comprising rf inputs mouth, radio frequency output port, microprocessor and power supply, including structure are identical
The first impedance matching box and the second impedance matching box, identical first resonance circuit of structure, the second resonance circuit, third resonance
Circuit and the 4th resonance circuit, the identical first Air Coupling window of structure, the second Air Coupling window and third Air Coupling window, knot
Identical first PIN diode array of structure, the second PIN diode array, third PIN diode array and the 4th PIN diode
Array and digital control circuit；
Rf inputs mouth, the first resonance circuit, the first Air Coupling window, the second resonance circuit, the second Air Coupling window,
Third resonance circuit, third Air Coupling window, the 4th resonance circuit and radio frequency output port are sequentially electrically connected, the first PIN bis-
Pole pipe array, the second PIN diode array, third PIN diode array and the 4th PIN diode array respectively with the first resonance
Circuit, the second resonance circuit, third resonance circuit and the 4th resonance circuit, which correspond, to be electrically connected, digital control circuit difference
With the first PIN diode array, the second PIN diode array, third PIN diode array, the 4th PIN diode array and micro-
Processor is electrically connected, and power supply is electrically connected with microprocessor and digital control circuit respectively.
It is further preferred that the first PIN diode array, the second PIN diode array, third PIN diode array and
4th PIN diode array includes the identical and in parallel PIN diode circuit of 24 line structures；
Digital control circuit includes the identical digital control sub-circuit of 96 line structures；
96 railway digitals control sub-circuit respectively with the first PIN diode array, the second PIN diode array, the 3rd PIN bis-
Pole pipe array and 24 road PIN diode circuit of the 4th PIN diode array Zhong, which correspond, to be electrically connected.
It is further preferred that PIN diode circuit includes PIN diode D1, capacitor C12, capacitor C14, resistance R14 and electricity
Feel L8；
The anode of PIN diode D1 is electrically connected with one end of inductance L8, and the cathode of PIN diode D1 passes through capacitor C12
Ground connection, the other end of inductance L8 are electrically connected with one end of resistance R14 and one end of capacitor C14 respectively, the other end of capacitor C14
Ground connection, the other end of resistance R14 are electrically connected with digital control sub-circuit all the way.
It is further preferred that inductance L8 is that high temperature resistant wire wears magnetic bead series connection high frequency choke coil.
It is further preferred that digital control sub-circuit includes triode Q1, triode Q2, diode D5 and resistance R18-
R20；
One end of resistance R18 and the I/O mouth of microprocessor are electrically connected, the other end of resistance R18 and the base of triode Q1
Pole is electrically connected, the emitter of triode Q1 ground connection, the collector of triode Q1 respectively with one end of resistance R19, triode Q2
Base stage and the anode of diode D5 be electrically connected, one end of the collector of triode Q2 and resistance R2 are electrically connected, resistance R1
The other end and the other end of resistance R2 be electrically connected with the power supply respectively, the emitter of triode Q2 is negative with diode D5 respectively
The other end of pole and resistance R14 are electrically connected.
It is further preferred that the first resonance circuit includes inductance L6 and capacitor C11；
Anode of the first end of inductance L6 respectively with one end of capacitor C11 and PIN diode D1 is electrically connected, inductance L6's
Second end and the first impedance matching box are electrically connected, and the third end of inductance L6 and the other end of capacitor C11 are grounded.
It is further preferred that the first impedance matching box includes inductance L5；
One end of inductance L5 and rf inputs mouth are electrically connected, and the other end of inductance L5 and the second end of inductance L6 are electrical
Connection.
It is further preferred that the inductance L5 of the first impedance matching box is the polytetrafluoroethylene (PTFE) skeleton electricity of silver-coated copper wire coiling
Sense.
It is further preferred that the first Air Coupling window includes inductance L7 and capacitor C13；
One end of inductance L7 and one end of inductance L8 are electrically connected, and the other end of inductance L7 electrically connects with the second resonance circuit
It connects, capacitor C13 is connected in parallel on the both ends of inductance L7.
A kind of high-power 30-88MHz quadravalence cavity bounce frequency filter of the utility model have compared with the existing technology with
It is lower the utility model has the advantages that
(1) by the first impedance matching box of setting and the second impedance matching box, the microwave signal of high frequency is made to reach load point,
The reflection signal generated on removal transmission link, to promote source benefit；
(2) it by the first resonance circuit of setting, the second resonance circuit, third resonance circuit and the 4th resonance circuit, improves
The highly inhibited energy of bounce frequency filter and the inhibition of the transmitter signal to other frequencies；
(3) pass through the first PIN diode array of setting, the second PIN diode array, third PIN diode array and the
Four PIN diode arrays, the voltage by changing digital control circuit output reach to control the on and off of PIN diode
Change the purpose of resonant capacitance value, realizes fast frequency hopping, mention high-frequency highly selective；
(4) by the first Air Coupling window of setting, the second Air Coupling window and third Air Coupling window, realization filters out front end
The function of the useless clutter generated and impedance transformation；
(5) whole device can combine low-loss and high rejection characteristic, improve the radio-frequency match characteristic of filter, dissipate
It is hot good.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structure chart of high-power 30-88MHz quadravalence cavity bounce frequency filter of the utility model；
Fig. 2 is a kind of circuit diagram of high-power 30-88MHz quadravalence cavity bounce frequency filter of the utility model；
Fig. 3 is digital control sub-circuit in a kind of high-power 30-88MHz quadravalence cavity bounce frequency filter of the utility model
Circuit diagram.
Specific embodiment
Below in conjunction with the utility model embodiment, the technical solution in the utility model embodiment is carried out clear
Chu is fully described by, it is clear that and described embodiment is only a part of embodiment of the utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of high-power 30-88MHz quadravalence cavity bounce frequency filter of the utility model comprising radio frequency
Input port, radio frequency output port, microprocessor 15 and power supply 16 further include identical first impedance matching box 1 of structure and
Two impedance matching boxs 2, identical first resonance circuit 3 of structure, the second resonance circuit 4, third resonance circuit 5 and the 4th resonance electricity
Road 6, the identical first Air Coupling window 7 of structure, the second Air Coupling window 8 and third Air Coupling window 9, structure identical first
PIN diode array 10, the second PIN diode array 11, third PIN diode array 12 and the 4th PIN diode array 13,
And digital control circuit 14.
First impedance matching box 1 and the second impedance matching box 2 make the microwave signal of high frequency reach load point, removal transmission
The reflection signal that chain road generates, to promote source benefit.In the present embodiment, the first impedance matching box 1 and the second impedance
2 structure of adaptation is identical, and the first impedance matching box 1 and the second impedance matching box 2 are including the polytetrafluoroethyl-ne of silver-coated copper wire coiling
Alkene skeleton inductance, as shown in Fig. 2, the inductance in the first impedance matching box 1 is defined as inductance L5, in the second impedance matching box 2
Inductance is defined as inductance L16, and one end of inductance L5 and rf inputs mouth are electrically connected, the other end of inductance L5 and the first resonance
Circuit 3 is electrically connected, and one end of inductance L16 and radio frequency output port are electrically connected, the other end of inductance L16 and the 4th resonance electricity
Road 6 is electrically connected.
First resonance circuit 3, the second resonance circuit 4, third resonance circuit 5 and the 4th resonance circuit 6, realize frequency-selecting respectively
With composition impedance matching circuit.First resonance circuit 3, the second resonance circuit 4, third resonance circuit 5 and in the present embodiment
Four resonance circuits, 6 structure is identical, therefore, the first resonance circuit 3 is introduced at this, as shown in Fig. 2, the first resonance circuit 3 includes
Inductance L6 and capacitor C11；Specifically, the first end of inductance L6 respectively with one end of capacitor C11 and the first PIN diode array 10
It is electrically connected, the other end of the second end of inductance L6 and inductance L5 are electrically connected, and the third end of inductance L6 and capacitor C11's is another
End is grounded.Wherein, in actual application, the first resonance circuit 3, the second resonance circuit 4, third resonance circuit 5 and
Four resonance circuits 6 can be equivalent to an internal silver plated hollow metal cylinder and a long 40cm or so and silver-plated spiral shell
Bar, and four hollow metal cylinders can linearly arrange, and triangular in shape can also arrange, the different rows of hollow metal cylinder
Mode for cloth can reduce loss；First impedance matching box 1 and the second impedance matching box 2 respectively with the first resonance circuit 3 and the 4th
The equivalent hollow metal cylinder of resonance circuit 6 is electrically connected.
First PIN diode array 10, the second PIN diode array 11, third PIN diode array 12 and the 4th PIN
Diode array 13 is reached by changing the voltage that digital control circuit 14 exports to control the on and off of PIN diode
Change the purpose of resonant capacitance value, realizes fast frequency hopping.In the present embodiment, the first PIN diode array 10, the 2nd PIN bis-
Pole pipe array 11, third PIN diode array 12 and the 13 place printed board Reflow Soldering of the 4th PIN diode array are in resonant element
Top, to enhance heat dissipation；PIN diode array, digital circuit and power supply 16 adhere to separately intracavitary to prevent electromagnetism dry in different metal
It disturbs；First PIN diode array 10, the second PIN diode array 11, third PIN diode array 12 and the 4th PIN diode
13 structure of array is identical, and each contains the identical and parallel with one another PIN diode circuit of 24 line structures, per all the way
PIN diode circuit needs to control the control circuit of PIN diode on and off all the way, therefore digital control circuit 14 includes
The identical digital control sub-circuit of 96 line structures introduces PIN diode circuit all the way and digital control sub-circuit all the way at this,
As shown in Fig. 2, PIN diode circuit includes PIN diode D1, capacitor C12, capacitor C14, resistance R14 and inductance L8；Specifically
, the anode of PIN diode D1 is electrically connected with one end of inductance L8, and the cathode of PIN diode D1 is grounded by capacitor C12,
The other end of inductance L8 is electrically connected with one end of resistance R14 and one end of capacitor C14 respectively, the other end ground connection of capacitor C14,
The other end of resistance R14 is electrically connected with digital control sub-circuit all the way, wherein inductance L8 is that high temperature resistant wire wears magnetic bead series connection
High frequency choke coil to block digital crosstalk radiofrequency signal, while avoiding radiofrequency signal from leaking on digital circuit board, every road
The anode of the PIN diode of PIN diode circuit is electrically connected with one end of the capacitor C11 in the first resonance circuit 3.At this
In embodiment, the output end of microprocessor 15 can drive digital control sub-circuit to drive or stop, and then control PIN diode
Be switched off and on, as long as the chip of microprocessor 15 39vf series can be with, microprocessor is used in the present embodiment, is such as schemed
Shown in 3, digital control sub-circuit includes triode Q1, triode Q2, diode D5 and resistance R18-R20；Specifically, resistance
One end of R18 and the output end of microprocessor 15 are electrically connected, and the other end of resistance R18 electrically connects with the base stage of triode Q1
Connect, the emitter of triode Q1 ground connection, the collector of triode Q1 respectively with one end of resistance R19, triode Q2 base stage and
The anode of diode D5 is electrically connected, and the collector of triode Q2 and one end of resistance R2 are electrically connected, the other end of resistance R1
Be electrically connected respectively with power supply 16 with the other end of resistance R2, the emitter of triode Q2 respectively with the cathode and electricity of diode D5
The other end for hindering R14 is electrically connected.In view of not digital control enough the sub-circuit distribution of the output port of microprocessor 15, therefore,
In the present embodiment, also carry out expansion I/O mouth using to control signal conversion chip PCF8574, PCF8574 passes through two bidirectional buses
Microprocessor 15 is set to realize the extension of remote I/O mouth, PCF8574 has 8 standards I/O mouthfuls two-way, can pass through three hardware address
Pin addresses 8 devices, carrys out expansion I/O mouth with this.
First Air Coupling window 7, the second Air Coupling window 8 and third Air Coupling window 9 realize what filtering and impedance converted
Function.In the present embodiment, the first Air Coupling window 7, the second Air Coupling window 8 are identical with third Air Coupling 9 structures of window,
This introduces the first Air Coupling window 7, as shown in Fig. 2, the first Air Coupling window 7 includes inductance L7 and capacitor C13；Specifically,
One end of inductance L7 and one end of inductance L8 are electrically connected, and the other end of inductance L7 and the second resonance circuit 4 are electrically connected, capacitor
C13 is connected in parallel on the both ends of inductance L7.Wherein, in actual application, the first Air Coupling window 7,8 and of the second Air Coupling window
Third Air Coupling window 9 is equivalent to inductance and capacitor in parallel, in actual circuit and is not present.
Power supply 16 in the present embodiment is that digital control circuit 14 provides required positive voltage, and -3.3V and+24V voltage.
The technical indicator of the filter of the utility model are as follows:
| Index name | Technical indicator | Unit |
| Frequency | 30-88 | MHz |
| Insertion Loss | ≤1.7 | dB |
| SWR | ≤1.5 | / |
| 3dB relative bandwidth | 4.5% | / |
| Power capacity | 100 | W |
| 10% inhibits | ≥45 | dBc |
| 2~5 subharmonic | ≥65 | dBc |
The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all
Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on
Within the protection scope of type.
Claims (9)
1. a kind of high-power 30-88MHz quadravalence cavity bounce frequency filter comprising rf inputs mouth, radio frequency output port, micro-
Processor (15) and power supply (16), it is characterised in that: further include identical first impedance matching box (1) of structure and the second impedance
Orchestration (2), identical first resonance circuit (3) of structure, the second resonance circuit (4), third resonance circuit (5) and the 4th resonance electricity
Road (6), the identical first Air Coupling window (7) of structure, the second Air Coupling window (8) and third Air Coupling window (9), structure phase
The first PIN diode array (10) together, the second PIN diode array (11), third PIN diode array (12) and the 4th
PIN diode array (13) and digital control circuit (14)；
The rf inputs mouth, the first resonance circuit (3), the first Air Coupling window (7), the second resonance circuit (4), the second sky
Gas coupling window (8), third resonance circuit (5), third Air Coupling window (9), the 4th resonance circuit (6) and radio frequency output port are suitable
Secondary electric connection, the first PIN diode array (10), the second PIN diode array (11), third PIN diode array (12)
With the 4th PIN diode array (13) respectively with the first resonance circuit (3), the second resonance circuit (4), third resonance circuit (5)
With the 4th resonance circuit (6) correspond be electrically connected, digital control circuit (14) respectively with the first PIN diode array
(10), the second PIN diode array (11), third PIN diode array (12), the 4th PIN diode array (13) and micro- place
It manages device (15) to be electrically connected, power supply (16) is electrically connected with microprocessor (15) and digital control circuit (14) respectively.
2. a kind of high-power 30-88MHz quadravalence cavity bounce frequency filter as described in claim 1, it is characterised in that: described the
One PIN diode array (10), the second PIN diode array (11), third PIN diode array (12) and bis- pole the 4th PIN
Pipe array (13) includes the identical and in parallel PIN diode circuit of 24 line structures；
The digital control circuit (14) includes the identical digital control sub-circuit of 96 line structures；
96 railway digital control sub-circuit respectively with the first PIN diode array (10), the second PIN diode array (11),
Third PIN diode array (12) and 24 road PIN diode circuit of the 4th PIN diode array (13) Zhong correspond electrically
Connection.
3. a kind of high-power 30-88MHz quadravalence cavity bounce frequency filter as claimed in claim 2, it is characterised in that: described
PIN diode circuit includes PIN diode D1, capacitor C12, capacitor C14, resistance R14 and inductance L8；
The anode of the PIN diode D1 is electrically connected with one end of inductance L8, and the cathode of PIN diode D1 passes through capacitor C12
Ground connection, the other end of inductance L8 are electrically connected with one end of resistance R14 and one end of capacitor C14 respectively, the other end of capacitor C14
Ground connection, the other end of resistance R14 are electrically connected with digital control sub-circuit all the way.
4. a kind of high-power 30-88MHz quadravalence cavity bounce frequency filter as claimed in claim 3, it is characterised in that: the electricity
Sense L8 is that high temperature resistant wire wears magnetic bead series connection high frequency choke coil.
5. a kind of high-power 30-88MHz quadravalence cavity bounce frequency filter as claimed in claim 4, it is characterised in that: the number
It includes triode Q1, triode Q2, diode D5 and resistance R18-R20 that word, which controls sub-circuit,；
One end of the resistance R18 and the I/O mouth of microprocessor (15) are electrically connected, the other end and triode Q1 of resistance R18
Base stage be electrically connected, the emitter of triode Q1 ground connection, the collector of triode Q1 respectively with one end of resistance R19, three poles
The base stage of pipe Q2 and the anode of diode D5 are electrically connected, and the collector of triode Q2 and one end of resistance R2 are electrically connected, electricity
Hinder R1 the other end and resistance R2 the other end respectively with power supply (16) be electrically connected, the emitter of triode Q2 respectively with two poles
The cathode of pipe D5 and the other end of resistance R14 are electrically connected.
6. a kind of high-power 30-88MHz quadravalence cavity bounce frequency filter as claimed in claim 5, it is characterised in that: described the
One resonance circuit (3) includes inductance L6 and capacitor C11；
Anode of the first end of the inductance L6 respectively with one end of capacitor C11 and PIN diode D1 is electrically connected, inductance L6's
Second end and the first impedance matching box (1) are electrically connected, and the third end of inductance L6 and the other end of capacitor C11 are grounded.
7. a kind of high-power 30-88MHz quadravalence cavity bounce frequency filter as claimed in claim 6, it is characterised in that: described the
One impedance matching box (1) includes inductance L5；
One end of the inductance L5 and rf inputs mouth are electrically connected, and the other end of inductance L5 and the second end of inductance L6 are electrical
Connection.
8. a kind of high-power 30-88MHz quadravalence cavity bounce frequency filter as claimed in claim 7, it is characterised in that: described the
The inductance L5 of one impedance matching box (1) is the polytetrafluoroethylene (PTFE) skeleton inductance of silver-coated copper wire coiling.
9. a kind of high-power 30-88MHz quadravalence cavity bounce frequency filter as claimed in claim 8, it is characterised in that: described the
One Air Coupling window (7) includes inductance L7 and capacitor C13；
One end of the inductance L7 and one end of inductance L8 are electrically connected, the other end of inductance L7 and the second resonance circuit (4) electricity
Property connection, capacitor C13 is connected in parallel on the both ends of inductance L7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920247356.3U CN209517076U (en) | 2019-02-27 | 2019-02-27 | A kind of high-power 30-88MHz quadravalence cavity bounce frequency filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920247356.3U CN209517076U (en) | 2019-02-27 | 2019-02-27 | A kind of high-power 30-88MHz quadravalence cavity bounce frequency filter |
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| Publication Number | Publication Date |
|---|---|
| CN209517076U true CN209517076U (en) | 2019-10-18 |
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ID=68204781
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920247356.3U Active CN209517076U (en) | 2019-02-27 | 2019-02-27 | A kind of high-power 30-88MHz quadravalence cavity bounce frequency filter |
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| Country | Link |
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| CN (1) | CN209517076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162571A (en) * | 2021-01-07 | 2021-07-23 | 同方电子科技有限公司 | Constant absolute bandwidth frequency hopping filter |
-
2019
- 2019-02-27 CN CN201920247356.3U patent/CN209517076U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162571A (en) * | 2021-01-07 | 2021-07-23 | 同方电子科技有限公司 | Constant absolute bandwidth frequency hopping filter |
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