CN208062229U - A kind of broadband adjustable high-power microwave equalizer - Google Patents
A kind of broadband adjustable high-power microwave equalizer Download PDFInfo
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- CN208062229U CN208062229U CN201820473822.5U CN201820473822U CN208062229U CN 208062229 U CN208062229 U CN 208062229U CN 201820473822 U CN201820473822 U CN 201820473822U CN 208062229 U CN208062229 U CN 208062229U
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- minor matters
- microwave
- transmission line
- equalizer
- core wire
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Abstract
The utility model provides a kind of broadband adjustable high-power microwave equalizer, in microwave transmission line a microwave resonator is loaded every quarter-wave, the microwave transmission line is main transmission line, resonance minor matters are loaded on the main transmission line forms microwave resonator, the resonance minor matters be T-type couple outside minor matters, including core wire and core wire using core wire as the coaxial cavity of axis；The transmission valley point for forming the main transmission line in the coaxial cavity added with microwave absorbing material forms short dot in core wire end；The cooperation of multistage resonant minor matters can form specific equalizer curve.Resonance minor matters are realized using quarter-wave coaxial cavity, there is larger power capacity the utility model discloses a kind of.
Description
Technical field
The utility model is related to balanced device field, more particularly to a kind of broadband adjustable high-power microwave equalizer.
Background technology
Powerful vacuum amplifier (such as klystron or travelling-wave tubes) is the core devices of the electronics such as radar, technology
Level determines the tactical qualities of electronics.In new system radar system, it is desirable that radar transmitter design has broader band
Wide, better flatness, but since last stage of transmitter power amplifier mostly uses the travelling-wave tubes or klystron that amplitude coincidence differs greatly
Equal vacuum amplifier (V-AMP)s are constituted, and amplitude equalizer need to be used to improve the uneven amplitude response of transmitting module.In addition vacuum amplifier (V-AMP)
Individual consistency is poor, and the front-mounted equalization curve of different amplifiers is different, it is desirable that amplitude equalizer has live adjustable energy saving
Power, not only frequency point status requirement is adjustable, also requires have larger adjustable extent, and the equilibrium that can adapt to Different Dynamic range is bent
Line, in addition balanced device should also be with smaller temperature drift to adapt to field environment or aerospace environment.
Balanced device has following insufficient at present：
Equalizer requirement is by the power absorption of trap, therefore the resistive material of system power requires enough power
Capacity and heat dissipation performance, its power capacity very little of the resistance that planar circuit uses, and heat dissipation performance is bad, such balanced device is uncomfortable
It closes and is applied to high-power environment.
The balanced device that planar circuit and resistance, resonance minor matters are realized is used to be only capable of passing through tune for fixed curve balanced device
Resistance, trimming resonance minor matters realization curve adjustment are changed, more difficulty is adjusted, it generally can not Field adjustment.
Resonance minor matters constitute the decaying frequency point and adjustable trapper of attenuation amplitude, and multistage trapper cascades up realization
Complicated equalizer curve.This balanced device is fixed curve balanced device, can not Field adjustment.
Traditional balanced device due to the use of a quarter or half-wavelength resonance minor matters, due to the use of material vary with temperature
Cause to expand with heat and contract with cold lead to its high/low temperature in the case of trap frequency deviate, cause equalizer curve completely disorderly under extreme case.
Planar circuit balanced device causes its balanced range smaller, is usually no more than 20dB since resonance minor matters Q values are relatively low.
Utility model content
For the above-mentioned deficiency of current traditional balanced device, it is micro- that the utility model needle provides a kind of broadband adjustable high-power
Wave balanced device, it is a 10 rank C-band Wideband Equalizer.
The utility model realizes that its technical purpose technical solution is：A kind of broadband adjustable high-power microwave equalizer,
Microwave transmission line loads a microwave resonator every quarter-wave, and the microwave transmission line is main transmission line, in institute
Resonance minor matters are loaded on the main transmission line stated and form microwave resonator, and the resonance minor matters are that T-type couples minor matters, including core wire
With outside core wire using core wire as the coaxial cavity of axis；The main transmission line is formed in the coaxial cavity added with microwave absorbing material
Transmission valley point, core wire end formed short dot；The cooperation of multistage resonant minor matters can form specific equalizer curve.
Resonance minor matters are realized using quarter-wave coaxial cavity, there is larger work(the utility model discloses a kind of
Rate capacity；Quarter-wave resonance minor matters and main transmission line stiffness of coupling are adjustable；Resonance minor matters side wall can screw in absorbing medium
It follows closely (carbonyl iron), inhales wave medium and stick inside peg, there is good power to inhale wave and heat dissipation performance；Resonance minor matters side wall
All-metal nail can be screwed in, the adjusting of trap frequency is used for；The resonance minor matters for screwing in all-metal nail have negative temperature coefficient, with metal
The positive temperature reverses of cavity, thus there is good temperature stability；Coaxial cavity resonance minor matters have high Q values, by it
The balanced device of composition has larger dynamic regulation range, up to 30dB；
Further, in above-mentioned broadband adjustable high-power microwave equalizer：The main transmission line is 50 ohm same
Axis, the coaxial line remaining transmission medium other than two sections are fixed using polytetrafluoroethylene (PTFE) use air.
Further, in above-mentioned broadband adjustable high-power microwave equalizer：It is coaxial where the resonance minor matters
The featured resistance of line is 75 ohm, and core wire is locked with short dot by screw thread, between being coupled with the coaxial core as main transmission line
Away from adjustable.
Further, in above-mentioned broadband adjustable high-power microwave equalizer：The microwave absorbing material is metal
Either medium follows closely the peg to nail or medium nail screws in and three threaded holes opened in resonance minor matters coaxial cavity side wall are arranged
In.
Further, in above-mentioned broadband adjustable high-power microwave equalizer：The medium nail is plated using copper alloy
Gold makes, inside bonding carbonyl iron absorbing material.
Below with reference to drawings and examples, the utility model is described in detail.
Description of the drawings
Fig. 1 is 1 balanced device Microwave Net model of the utility model embodiment.
Fig. 2 is 1 equaliser structure model of the utility model embodiment.
Fig. 3 is 1 resonance minor matters structure chart of the utility model embodiment.
Fig. 4 is 1 medium pin structure figure of the utility model embodiment.
Fig. 5 is 1 main transmission line structure chart of the utility model embodiment.
Fig. 6 is 1 balanced device three dimensional structure diagram of the utility model embodiment.
Specific implementation mode
The present embodiment is a kind of broadband adjustable high-power microwave equalizer, it is a 10 rank C-band Wideband Equalizer,
The present embodiment is to realize that different frequent points generate different amplitude fadings, and microwave equalizer uses the design structure of bandstop filter, i.e.,
In microwave transmission line (micro-strip, coaxial or waveguide) microwave resonator, the frequency of balanced device are loaded every quarter-wave
Resonant frequency and quality factor of the response depending on microwave resonator；Adjust the frequency tune that balanced device can be realized in resonant frequency
Section, amplitude adjusted can be realized by changing quality factor.Balanced device equivalent circuit as shown in Figure 1, K1, K2 ... K7 indicate main transmission line
It is quarter-wave, each section of characteristic impedance Z is 50ohm, and wavelength is Ω/2.It draws at the both ends of each section of main transmission line
One a quarter resonance minor matters K11, K12 ... K18, its characteristic impedance are 100ohm, and wavelength is also Ω/2.The minor matters of load
It determines that the load of the minor matters is strong and weak with the stiffness of coupling of main transmission line, is leaked into added with microwave absorbing material for consuming in minor matters
The microwave power come, and then the transmission valley point (frequency of valley point corresponds to the resonant frequency of the minor matters) of main transmission line is formed, it is multistage
Minor matters cooperation can form specific equalizer curve.The network model of balanced device, and profit can be established using microwave network theory
The frequency domain response of balanced device is analyzed with its network model.The structural model of balanced device is as shown in Figure 2.It is transmitted based on microwave transmission line
Line 1 loads resonance minor matters 2 on main transmission line 1 and forms microwave resonator, and resonance minor matters 2 are that T-type couples minor matters, including core wire 3
With with core wire 3 be the coaxial cavity 4 of axis outside core wire 3；The main transmission line 1 is formed in coaxial cavity 4 added with microwave absorbing material 5
Transmission valley point, 3 end of core wire formed short dot 6；The cooperation of multistage resonant minor matters 2 can form specific equalizer curve.
In the present embodiment, the key of equaliser structure design is resonance minor matters, to ensure higher Q values, resonance minor matters 2
It is designed using coaxial cavity, characteristic impedance is set as 75 ohm, material selection copper.Coaxial core i.e. core wire 3 and short dot 6 are logical
Cross screw thread locking, it is adjustable that the coaxial cores of resonance minor matters 2 couples spacing with main transmission line 1 (main waveguide) coaxial core 1-2, is adjusted with this
Save 2 stiffness of coupling of resonance minor matters.2 coaxial cavity of resonance minor matters, 4 side wall opens three threaded hole 4-1, screws in peg as needed
5-1 or medium follow closely 5-2.Peg 5-1 is used to adjust the resonant frequency of the resonance minor matters 2, which has
Negative temperature coefficient, the effect that can normally expand with heat and contract with cold with cavity offset, thus have the advantages that temperature stabilization, are suitble in wide temperature
It spends in range and uses.Medium nail 5-2 is mainly used for adjusting the Q values of resonance minor matters, and the trap wave point that high q-factor resonance minor matters are formed is narrow
And deep, the wide and shallow depth of trap wave point that low reactance-resistance ratio resonance minor matters are formed, when adjusting, follow closely according to the appropriate selecting tuning of specific equalizer curve
Type and adjust depth.Resonance minor matters structure chart is as shown in Figure 3.
In the present embodiment, peg uses the gold-plated making of copper alloy.Medium is followed closely as shown in figure 4, using the gold-plated 5- of copper alloy
2-1 makes, and inside bonding carbonyl iron 5-2-2 absorbing materials, the microwave power of absorption is converted into heat and is distributed by metal structure
It goes out.Regulating nail uses Design of Screw Thread, and the resonant frequency or power absorption of balanced minor matters are adjusted by adjusting insertion depth.
Main waveguide uses 50 ohm coaxial transmission lines, as shown in figure 5, the coaxial line of main waveguide is in addition to main waveguide enclosure 1-3
Remaining transmission medium other than main waveguide core wire 1-2 is fixed using polytetrafluoroethylene (PTFE) 1-1 interior two sections and uses air.Main waveguide side
Wall has several resonance minor matters of several resonance minor matters coupling aperture 1-4 carries, each resonance minor matters and the stiffness of coupling of main waveguide equal
It requires to be adjusted according to equalizer curve, each resonance minor matters resonant frequency and Q values can be separately adjustable, several resonance minor matters
Specific equalizer curve can be thus achieved in cooperation.
Balanced device three-dimensional assembly structure is as shown in Figure 6.Ten rank balanced devices include 10 stiffness of coupling tuning plugs and 30
Tuning nail is fixed after tuning using nut check and dispensing as needed.
In the present embodiment, realizes resonance minor matters using quarter-wave coaxial cavity, there is larger power capacity；Four
/ mono- wave resonance minor matters and main transmission line stiffness of coupling are adjustable；Resonance minor matters side wall can screw in absorbing medium nail (carbonyl
Iron), it inhales wave medium and sticks inside peg, there is good power to inhale wave and heat dissipation performance；Resonance minor matters side wall can screw in
All-metal is followed closely, and the adjusting of trap frequency is used for；The resonance minor matters for screwing in all-metal nail have negative temperature coefficient, with metal cavity
Positive temperature reverses, thus there is good temperature stability；Coaxial cavity resonance minor matters have high Q values, are made from it
Balanced device has larger dynamic regulation range, up to 30dB.
Resonance minor matters are realized using quarter-wave coaxial cavity, there is larger power capacity in the present embodiment；Four
/ mono- wave resonance minor matters and main transmission line stiffness of coupling are adjustable；Resonance minor matters side wall can screw in absorbing medium nail (carbonyl
Iron), it inhales wave medium and sticks inside peg, there is good power to inhale wave and heat dissipation performance；Resonance minor matters side wall can screw in
All-metal is followed closely, and the adjusting of trap frequency is used for；The resonance minor matters for screwing in all-metal nail have negative temperature coefficient, with metal cavity
Positive temperature reverses, thus there is good temperature stability；Coaxial cavity resonance minor matters have high Q values, are made from it
Balanced device has larger dynamic regulation range, up to 30dB；The present invention has the advantages that live adjustable, the scope of application of equalizer curve
Greatly, using flexible.
Claims (5)
1. a kind of broadband adjustable high-power microwave equalizer loads a microwave in microwave transmission line every quarter-wave
Resonator, it is characterised in that：The microwave transmission line is main transmission line (1), and resonance is loaded on the main transmission line (1)
Minor matters (2) form microwave resonator, and the resonance minor matters (2) are that T-type couples minor matters, including core wire (3) and core wire (3) are outside
With the coaxial cavity (4) that core wire (3) is axis；The main transmission is formed in the coaxial cavity (4) added with microwave absorbing material (5)
The transmission valley point of line (1) forms short dot (6) in core wire (3) end；Multistage resonant minor matters (2) cooperation can form specific
Equalizer curve.
2. adjustable high-power microwave equalizer in broadband according to claim 1, it is characterised in that：The main transmission line
(1) it is 50 ohm coaxial lines, the coaxial line remaining transmission other than two sections fixed using polytetrafluoroethylene (PTFE) (1-1)
Medium uses air.
3. adjustable high-power microwave equalizer in broadband according to claim 2, it is characterised in that：The resonance minor matters
(2) featured resistance of the coaxial line where is 75 ohm, and core wire (3) is locked with short dot (6) by screw thread, and as main transmission
The coaxial core coupling spacing of line (1) is adjustable.
4. adjustable high-power microwave equalizer in broadband according to claim 2, it is characterised in that：The microwave absorption
Material (5) is that either medium nail (5-2) peg (5-1) or medium nail (5-2) screw in peg (5-1)
It is arranged in three threaded holes (4-1) that resonance minor matters (2) coaxial cavity (4) side wall is opened.
5. adjustable high-power microwave equalizer in broadband according to claim 4, it is characterised in that：The medium nail is adopted
It is made of copper alloy gold-plated (5-2-1), inside bonding carbonyl iron (5-2-2) absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820473822.5U CN208062229U (en) | 2018-03-30 | 2018-03-30 | A kind of broadband adjustable high-power microwave equalizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820473822.5U CN208062229U (en) | 2018-03-30 | 2018-03-30 | A kind of broadband adjustable high-power microwave equalizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208062229U true CN208062229U (en) | 2018-11-06 |
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ID=63988152
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820473822.5U Expired - Fee Related CN208062229U (en) | 2018-03-30 | 2018-03-30 | A kind of broadband adjustable high-power microwave equalizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265752A (en) * | 2019-06-04 | 2019-09-20 | 广东圣大电子有限公司 | A kind of X-band Medium Wave Guide electricity tune microwave equalizer |
| CN111129680A (en) * | 2019-12-30 | 2020-05-08 | 南京邮电大学 | Broadband adjustable equalizer based on coaxial resonant cavity |
-
2018
- 2018-03-30 CN CN201820473822.5U patent/CN208062229U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265752A (en) * | 2019-06-04 | 2019-09-20 | 广东圣大电子有限公司 | A kind of X-band Medium Wave Guide electricity tune microwave equalizer |
| CN110265752B (en) * | 2019-06-04 | 2024-02-20 | 广东圣大电子有限公司 | X-band dielectric wave conductive tuning microwave equalizer |
| CN111129680A (en) * | 2019-12-30 | 2020-05-08 | 南京邮电大学 | Broadband adjustable equalizer based on coaxial resonant cavity |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |