CN205039226U - Super large power cavity filter - Google Patents
Super large power cavity filter Download PDFInfo
- Publication number
- CN205039226U CN205039226U CN201520836833.1U CN201520836833U CN205039226U CN 205039226 U CN205039226 U CN 205039226U CN 201520836833 U CN201520836833 U CN 201520836833U CN 205039226 U CN205039226 U CN 205039226U
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- syntonizer
- resonator
- filter
- wavelength
- power cavity
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Abstract
The utility model relates to a microwave communication device specifically is super large power cavity filter, including the syntonizer of casing and five 14 wavelength, the open end of syntonizer is adjustable disc, separates into five cavities in the casing, has a syntonizer in every cavity, and the short circuit end passes through splice bar coupled linking between the syntonizer, and five syntonizers are coaxial, the casing both ends be input and output, input and output are coaxial connector, the syntonizer at both ends be connected with coaxial connector through silver -plated bar copper. The utility model discloses a super large power cavity filter adopts 14 wavelength pectinate lines filter configuration, has reduced the harmonious electric capacity of 14 wavelength syntonizer open ends, has increased the distance of syntonizer open end to ground, has increased the resistant power of wave filter.
Description
Technical field
The utility model relates to a kind of microwave communication device, is specially super high power cavity body filter.
Background technology
In radar and communication system, microwave filter is needed to suppress harmonic wave, interference and noise.In High-Power Microwave Filter design, because signal is at filter internal resonance, filter internal peak value electric field and peak field be several times in transmission channel to decades of times, multiple and filter relative bandwidth are inversely proportional to.Therefore filter is one of design difficulty of HIGH-POWERED MICROWAVES transmission system, and the resistance to power of traditional filter is poor.
Utility model content
For above-mentioned technical problem, the utility model provides the filter that a kind of resistance to power is strong.
Concrete technical scheme is:
Super high power cavity body filter, comprises the resonator of housing and five 1/4 wavelength, and the open end of resonator is adjustable disk, five chambers are separated in housing, have a resonator in each chamber, between resonator, short-circuit end is of coupled connections by dowel, and five resonators are coaxial; Described housing two ends are input and output, and input and output are coaxial connector; The resonator at described two ends is connected with coaxial connector by silver-plated copper rod.
Super high power cavity body filter of the present utility model is L-band 30kW high power cavity fluid filter, and the adjustable disk of the tuning open end of resonator realizes.Input/output interface adopts 50 ~ 35 coaxial connectors, and connector is connected with first resonator silver-plated copper rod of φ 10mm.All physical dimensions are accurately determined by 3 D electromagnetic field simulation software HFSS simulation optimization.
Super high power cavity body filter of the present utility model is 1/4 wavelength comb line filter structure, reduces 1/4 wave resonator open end tuning capacitance, adds the distance of resonator open end to ground, adds the resistance to power of filter.Short-circuit end dowel coupled structure between resonator, stiffness of coupling is determined by dowel height.
Because 1/4 wavelength parallel coupling coaxial transmission line stiffness of coupling is 0, in comb filter design, resonator length adopts open end capacitive load to shorten resonator length, and capacitive load is realized by tuning screw.Due to point discharge effect, the electric field breakdown at tuning screw place is the principal element of the resistance to power of restriction filter.
Super high power cavity body filter of the present utility model adopts 1/4 wavelength comb line filter structure, reduces 1/4 wave resonator open end tuning capacitance, adds the distance of resonator open end to ground, adds the resistance to power of filter.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Accompanying drawings embodiment of the present utility model.As shown in Figure 1, super high power cavity body filter, comprise housing 5 and five resonators 1, the open end of resonator 1 is adjustable disk, five chambers are separated in housing 5, have a resonator 1 in each chamber, between resonator 1, short-circuit end is of coupled connections by dowel 2, and five resonators 1 are coaxial; Described housing 5 two ends are input 3 and output 4, and input 3 and output 4 are coaxial connector; The resonator 1 at described two ends is connected with coaxial connector by silver-plated copper rod 6.
(1) housing 5 material is LY12, silver-plated 12 μm of inner chamber.Housing 5 inner cavity size 168mm × 70mm × 40mm.The resonant rod diameter of resonator 1 is φ 10mm, and resonant rod open end is φ 20mm × 3mm disk, and disk and resonant rod are threaded connection, rotating circular disk screw thread, according to requirement on electric performance, can regulate disc height, and disc height regulates maximum magnitude to be 3mm.After disk position regulates by experiment, by disc centre fixing threaded hole, with screw, disk is fixed on resonant rod.Five resonant rod height are obtained by 3 D electromagnetic field simulation software HFSS simulation optimization, see the following form 1:
Table 1 five resonant rod height
| Sequence number | １ | ２ | ３ | ４ | ５ |
| Highly (mm) | ４6.1 | 43.6 | 42.4 | 43.6 | 46.1 |
(2) resonant rod center distance is 28mm, is coupled through short-circuit end dowel 2 and realizes between resonant rod, dowel 2 thickness 5mm, and its height is obtained by 3 D electromagnetic field simulation software HFSS simulation optimization, sees the following form 2:
Table 2 dowel height
| Sequence number | 1 | 2 | 3 | 4 |
| Highly (mm) | 20.8 | 16.8 | 16.8 | 20.8 |
(3) power requirement is passed through for meeting 30KW, input/output interface adopts 50 ~ 35 patterns, socket inner wire is threadedly connected on the first resonant rod by the silver-plated copper rod of φ 10mm, copper rod center is 24.8mm from floor height, is obtained without the need to regulating by 3 D electromagnetic field simulation software HFSS simulation optimization.
This super high power cavity body filter is passband frequency range 1.2GHz ~ 1.4GHz, by the coaxial cavity comb filter of power >=30KW, frequency >2GHz place its pass band insertion loss <0.2dB, standing wave <1.3, stopband suppress >60dBc.
Adopt 1/4 wavelength comb line filter structure, reduce 1/4 wave resonator open end tuning capacitance, add the distance of resonator open end to ground, add the resistance to power of filter, short-circuit end dowel coupled structure between resonator, stiffness of coupling is determined by dowel height, and the size of dowel is determined by 3 D electromagnetic field simulation software HFSS simulation optimization, without the need to regulating.
Claims (1)
1. super high power cavity body filter, it is characterized in that: the resonator comprising housing and five 1/4 wavelength, the open end of resonator is adjustable disk, five chambers are separated in housing, a resonator is had in each chamber, between resonator, short-circuit end is of coupled connections by dowel, and five resonators are coaxial; Described housing two ends are input and output, and input and output are coaxial connector; The resonator at described two ends is connected with coaxial connector by silver-plated copper rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520836833.1U CN205039226U (en) | 2015-10-27 | 2015-10-27 | Super large power cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520836833.1U CN205039226U (en) | 2015-10-27 | 2015-10-27 | Super large power cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205039226U true CN205039226U (en) | 2016-02-17 |
Family
ID=55298099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520836833.1U Expired - Fee Related CN205039226U (en) | 2015-10-27 | 2015-10-27 | Super large power cavity filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205039226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148820A (en) * | 2019-05-23 | 2019-08-20 | 井冈山大学 | A kind of three Mould Breadth band filter of miniaturized coaxial cavity based on the load of Stepped Impedance wafer sheet |
-
2015
- 2015-10-27 CN CN201520836833.1U patent/CN205039226U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148820A (en) * | 2019-05-23 | 2019-08-20 | 井冈山大学 | A kind of three Mould Breadth band filter of miniaturized coaxial cavity based on the load of Stepped Impedance wafer sheet |
| CN110148820B (en) * | 2019-05-23 | 2023-12-01 | 井冈山大学 | Small coaxial cavity three-mode broadband filter based on step impedance cake loading |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20161027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |