CN203707293U - Broadband-adjustable filter device - Google Patents
Broadband-adjustable filter device Download PDFInfo
- Publication number
- CN203707293U CN203707293U CN201320856605.1U CN201320856605U CN203707293U CN 203707293 U CN203707293 U CN 203707293U CN 201320856605 U CN201320856605 U CN 201320856605U CN 203707293 U CN203707293 U CN 203707293U
- Authority
- CN
- China
- Prior art keywords
- spiral
- inner wire
- filter device
- spiral inner
- coupling structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model provides a broadband-adjustable filter device, which is characterized by comprising a spiral inner conductor, port coupling structures, an inter-stage coupling structure, a loading capacitor, an outer conductor, an insulating medium, a threaded hole, a bolt, a metal ring, a knob and a clamping slot. The spiral resonant cavity is formed by the spiral inner conductor and the outer conductor. Input signals are configured to enter the spiral resonant cavity connected with the port coupling structure at the input end of the filter device successively through a coaxial inlet and the port coupling structure at the input end of the filter device, and then enter the spiral resonant cavity connected with the port coupling structure at the output end of the filter device through the inter-stage coupling structure. The port coupling structure at the output end of the filter device, from a coaxial outlet to the spiral inner conductor thereof, is supported by the insulating medium. The outer surface of the port coupling structure at the output end of the filter device is etched with screw threads matched with the spiral inner conductor. According to the technical scheme of the utility model, the size of the loading capacitor is adjusted through rotating the knob, so that the parameters of the entire filter device can be adjusted. Therefore, the signal conditioning is more convenient in operation. Meanwhile, the parameter adjustment of the filter device can be conducted according to external environmental factors. Therefore, the filter device is wider in application range.
Description
Technical field
The utility model relates to a kind of adjustable wideband filtered apparatus.
Background technology
The filter using in VHF band communication field at present, comparatively common with LC filter.LC filter due to the relative cavity body filter of loss compared with large, Out-of-band rejection is relatively poor and cannot in high-power communication equipment, apply; Although coupling coaxial cavity filter cavity Q value is higher, loss is less, and because frequency range is lower, volume and weight is restricted its application too greatly.VHF high-power spiral band stop filter is also succeeded in developing, its passband and stopband rejection are better, good in point-to-point communication performance performance, but because its bandwidth of rejection compared with beyond narrow and stopband for all-pass band can be very limited in networking application.Along with the develop rapidly of the communication technology; in communication system applications; to some technical indicators of filter such as the requirement that inhibition degree is higher, relative bandwidth is wider also usually can be suggested development demand; electronic component also can change for the variation of external environment condition simultaneously, makes filter effect variation.
Utility model content
The technical problem that the utility model solves is to provide a kind of adjustable wideband filtered apparatus, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of adjustable wideband filtered apparatus, comprise spiral inner wire, port coupled structure, interstage coupling structure, loading capacitance, outer conductor, dielectric, screwed hole, bolt, becket, knob and draw-in groove, described spiral resonant cavity is made up of spiral inner wire and outer conductor, described input signal enters into the spiral resonant cavity being attached thereto through the port coupled structure of input from coaxial entrance, by interstage coupling structure, enter the spiral resonant cavity being connected with the port coupled structure of output, the port coupled structure of described output adopts dielectric to support from same axial outlet output spiral inner wire, its outer surface is carved with the screw thread matching with spiral inner wire, the short-circuit end of described spiral inner wire is welded on outer conductor, open end is welded on loading capacitance, spiral inner wire in described outer conductor is around to unanimously, port coupled structure is tap form, one end of tap is welded on spiral inner wire, the other end of tap is welded on and inputs or outputs on coaxial mouthful of inner wire, between described interstage coupling structure and corresponding loading capacitance, adopt silver-coated copper wire to connect, loading capacitance is the disc-shaped structure that can regulate continuously, its capacitance sheet of interstage coupling structure is capacity plate antenna structure, each capacity plate antenna is adjustable rectangle or thin rounded flakes structure, and symmetrical about spiral inner wire.
A nearly step, the bottom of outer conductor is provided with draw-in groove, and draw-in groove rotary moveable connects knob, knob is provided with bolt, in described dielectric, be provided with screwed hole and be connected with bolt thread, described outer conductor inside is provided with becket, and becket contacts and is connected with spiral inner wire with port coupled structure.
As preferably, described knob is provided with scale, convenient adjusting.
Beneficial effect: this device regulates loading capacitance size by the rotation of knob, thereby can regulate the parameter of filter apparatus really, convenient Signal Regulation can regulate according to external environment factor simultaneously, and range of application is wider.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
A kind of adjustable wideband filtered apparatus, comprise spiral inner wire 1, port coupled structure 2, interstage coupling structure 3, loading capacitance 4, outer conductor 5, dielectric 6, screwed hole 7, bolt 8, becket 9, knob 10 and draw-in groove 11, described spiral resonant cavity is made up of spiral inner wire 1 and outer conductor 5, described input signal enters into the spiral resonant cavity being attached thereto through the port coupled structure 2 of input from coaxial entrance, by interstage coupling structure 3, enter the spiral resonant cavity being connected with the port coupled structure 2 of output, the port coupled structure 2 of described output adopts dielectric 6 to support from same axial outlet output spiral inner wire 1, its outer surface is carved with the screw thread matching with spiral inner wire 1, the short-circuit end of described spiral inner wire 1 is welded on outer conductor 5, open end is welded on loading capacitance 4, spiral inner wire 1 in described outer conductor is around to unanimously, port coupled structure 2 is tap form, one end of tap is welded on spiral inner wire 1, the other end of tap is welded on and inputs or outputs on coaxial mouthful of inner wire, between described interstage coupling structure 3 and corresponding loading capacitance 4, adopt silver-coated copper wire to connect, the disc-shaped structure of loading capacitance 4 for regulating continuously, interstage coupling structure 3 its capacitance sheets are capacity plate antenna structure, each capacity plate antenna is adjustable rectangle or thin rounded flakes structure, and symmetrical about spiral inner wire.
A nearly step, the bottom of outer conductor 5 is provided with draw-in groove 11, draw-in groove 11 rotary moveables connect knob 10, knob 10 is provided with bolt 8, in described dielectric 6, being provided with screwed hole 7 is threaded with bolt 8, described outer conductor 5 inside are provided with becket 9, and becket 9 contacts and is connected with spiral inner wire 1 with port coupled structure 2.
As preferably, described knob 10 is provided with scale, convenient adjusting.
This device regulates loading capacitance 4 sizes by the rotation of knob 10, thereby can regulate the parameter of filter apparatus really, and convenient Signal Regulation can regulate according to external environment factor simultaneously, and range of application is wider.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (2)
1. an adjustable wideband filtered apparatus, it is characterized in that, comprise spiral inner wire, port coupled structure, interstage coupling structure, loading capacitance, outer conductor, dielectric, screwed hole, bolt, becket, knob and draw-in groove, described spiral resonant cavity is made up of spiral inner wire and outer conductor, described input signal enters into the spiral resonant cavity being attached thereto through the port coupled structure of input from coaxial entrance, by interstage coupling structure, enter the spiral resonant cavity being connected with the port coupled structure of output, the port coupled structure of described output adopts dielectric to support from same axial outlet output spiral inner wire, its outer surface is carved with the screw thread matching with spiral inner wire, the short-circuit end of described spiral inner wire is welded on outer conductor, open end is welded on loading capacitance, spiral inner wire 1 in described outer conductor is around to unanimously, port coupled structure is tap form, one end of tap is welded on spiral inner wire, the other end of tap is welded on and inputs or outputs on coaxial mouthful of inner wire, between described interstage coupling structure and corresponding loading capacitance, adopt silver-coated copper wire to connect, loading capacitance is the disc-shaped structure that can regulate continuously, its capacitance sheet of interstage coupling structure is capacity plate antenna structure, each capacity plate antenna is adjustable rectangle or thin rounded flakes structure, and symmetrical about spiral inner wire, the bottom of outer conductor is provided with draw-in groove, draw-in groove rotary moveable connects knob, knob is provided with bolt, in described dielectric, being provided with screwed hole is connected with bolt thread, described outer conductor inside is provided with becket, becket contacts and is connected with spiral inner wire with port coupled structure.
2. the adjustable wideband filtered apparatus of one according to claim 1, is characterized in that, described knob is provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320856605.1U CN203707293U (en) | 2013-12-17 | 2013-12-17 | Broadband-adjustable filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320856605.1U CN203707293U (en) | 2013-12-17 | 2013-12-17 | Broadband-adjustable filter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707293U true CN203707293U (en) | 2014-07-09 |
Family
ID=51057689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320856605.1U Expired - Fee Related CN203707293U (en) | 2013-12-17 | 2013-12-17 | Broadband-adjustable filter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203707293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226353A (en) * | 2015-10-30 | 2016-01-06 | 世达普(苏州)通信设备有限公司 | Coaxial cavity filter |
-
2013
- 2013-12-17 CN CN201320856605.1U patent/CN203707293U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226353A (en) * | 2015-10-30 | 2016-01-06 | 世达普(苏州)通信设备有限公司 | Coaxial cavity filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202259618U (en) | Adjustable capacitive cross coupling device | |
| CN201533009U (en) | Device for loading electric capacity of coaxial resonant cavity | |
| CN206864585U (en) | A kind of dielectric waveguide filter | |
| CN104716409A (en) | Adjustable wideband filter device | |
| CN203707293U (en) | Broadband-adjustable filter device | |
| CN202839922U (en) | High-power wide-band filter device | |
| CN203747003U (en) | Adjustable cavity filter | |
| CN105428764A (en) | Broad-band large-power spiral filter | |
| CN204290901U (en) | Signal filter circuit | |
| CN204376138U (en) | Coaxial connector and cavity body filter | |
| CN208539072U (en) | Bandstop filter and communication cavity device | |
| CN206532856U (en) | Suspended stripline bandstop filter and its communication cavity device | |
| CN206541911U (en) | Adjustable wave filter | |
| CN210866435U (en) | Cavity filter cover plate | |
| CN204067526U (en) | There is the coaxial cavity filter of transmission zero structure | |
| CN202217763U (en) | Cross coupling device of filter | |
| CN203984368U (en) | A kind of high frequency duplexer | |
| CN204290903U (en) | The filter circuit that belt switch exports | |
| CN203813012U (en) | Grooved circular nut tuning device | |
| CN202550044U (en) | Band-stop filter based on coaxial cavities | |
| CN204012059U (en) | A kind of low-cost durable radio frequency (RF) coaxial connector | |
| CN207426096U (en) | A kind of adjustable attenuator | |
| CN207009613U (en) | A kind of frequency modulation 10kW low pass filters | |
| CN205487763U (en) | Condenser with adjustable | |
| CN204407454U (en) | Interdigital filter |
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: 20140709 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |