CN204348873U - A kind of novel ultra broadband list notch filter - Google Patents
A kind of novel ultra broadband list notch filter Download PDFInfo
- Publication number
- CN204348873U CN204348873U CN201420802360.9U CN201420802360U CN204348873U CN 204348873 U CN204348873 U CN 204348873U CN 201420802360 U CN201420802360 U CN 201420802360U CN 204348873 U CN204348873 U CN 204348873U
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- open stub
- rectangle
- notch filter
- dielectric
- ultra broadband
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Abstract
The utility model relates to a kind of novel ultra broadband list notch filter, and it comprises: dielectric-slab (1), microstrip line (2), rectangle multimode resonant ring (3), circular recess (4), open stub (5) and ground plane (6); Described microstrip line, rectangle resonant ring, circular recess, open stub are all printed on dielectric-slab upper surface; Described open stub is positioned at above rectangle resonator, and two microstrip lines become symmetrical about central shaft; Ground plane is positioned at dielectric-slab lower surface.The utility model advantage is: structure is simple, compact, adjustable trap frequency, solves the interference problem in ultra-wideband communication system.
Description
Technical field
the utility model relates to a kind of novel ultra broadband list notch filter, is specifically related to a kind of ultra broadband list trap band pass filter based on multimode resonant ring, belongs to microwave transmission device technical field.
Background technology
along with the development of wireless communication technology, the requirement of people to communication system is more and more higher, and ultra broadband (Ultra-Wideband:UWB) technology is with its low cost, low-power consumption, fail safe are good, message transmission rate advantages of higher becomes the communications field both at home and abroad at present a study hotspot.Although US military for and aeronautical chart civilian still the also existing of open ultra wideband frequency is had different views, but due to the tempting development prospect that super-broadband tech is potential, FCC (FCC) have approved the application of super-broadband tech in short-distance wireless communication field in February, 2002.This opens gate for commercial applications of super-broadband tech product, facilitate radio ultra wide band system and device progress of research.
as one of the Primary Component of radio frequency leading portion, the quality of ultra-wide band filter performance directly affects the quality of whole communication system.In order to adapt to the requirement of microwave integrated circuit miniaturization, filter not only wants performance good, and wants volume little, compact conformation, is convenient to integrated and interconnected.
owing to there is wireless lan (wlan) in ultra broadband frequency band range, the conflict of broadband intercommunication microwave access (WIMAX) frequency range, how to solve the important content that co-channel interference becomes ultra broadband area research, so suppress co-channel interference to become the key of design ultra-wide band filter.
Utility model content
it is little that the purpose of this utility model there are provided volume in, compact conformation, is convenient to integrated and interconnected ultra broadband list notch filter, may be used for radio frequency network leading portion, realize good communication.
the purpose of this utility model is achieved through the following technical solutions:
a novel ultra broadband list notch filter, comprises dielectric-slab (1), microstrip line (2), rectangle multimode resonant ring (3), circular recess (4), open stub (5) and ground plane (6); Described microstrip line, rectangle resonant ring, circular recess, open stub are all printed on dielectric-slab upper surface; Described open stub is positioned at above rectangle resonator, and two microstrip lines become symmetrical about central shaft; Ground plane is positioned at dielectric-slab lower surface.
described a kind of novel ultra broadband list notch filter, rectangle multimode resonant ring (3) top loads open stub, and open stub is rectangle, is connected below open stub with rectangle multimode resonant ring (3).
described a kind of novel ultra broadband list notch filter, two microstrip lines (2) become symmetrical about about central shaft, and are connected with 50 ohm transmission line respectively.
described a kind of novel ultra broadband list notch filter, circular recess (4) is connected to the first transmission path center, and becomes symmetrical about central shaft.
circular recess described in the utility model is connected to the first transmission path center, can adjust filter bandwidht and trap frequency position by the size adjusting circular recess.
load rectangle open stub above rectangle multimode resonant ring described in the utility model, the frequency location of trap can be adjusted by the size adjusting stub, realize ultra-wideband communications and disturb the compatible communication for coordination between communication system mutually.
the beneficial effects of the utility model: the utility model filter single layer printed circuit plate technique can realize, simple and compact for structure, compact, and easy to process, cost is low, are convenient to batch production.
Accompanying drawing explanation
fig. 1 is front elevation of the present utility model;
fig. 2 is side view of the present utility model.
Embodiment
embodiment 1
as shown in Figure 1, have a kind of ultra-wide band filter based on multimode resonant ring of trap characteristic, its composition comprises: dielectric-slab (1), microstrip line (2), rectangle multimode resonant ring (3), circular recess (4), open stub (5) and ground plane (6).Described microstrip line, rectangle resonant ring, circular recess, open stub are all printed on dielectric-slab upper surface.Described open stub is positioned at above rectangle resonator, and two microstrip lines become symmetrical about central shaft.Ground plane is positioned at dielectric-slab lower surface.
described medium substrate is FR4 material, and thickness is 0.8 millimeter, and relative dielectric constant is 4.4.
first transmission path of described filter is connected with a circular recess, is connected, realizes trap function with multimode resonator with shorting stub of opening a way, and suppresses co-channel interference.
a kind of ultra-wide band filter based on multimode resonant ring, this filter forms primarily of rectangle multimode resonant ring, open stub and circular recess, its impedance band can cover 3.1-10.6GHz, meet ultra-wideband communications requirement, a trap can be produced in passband, effective suppression co-channel interference, the mainly contribution of circular recess.
Claims (4)
1. a novel ultra broadband list notch filter, is characterized in that: comprise dielectric-slab (1), microstrip line (2), rectangle multimode resonant ring (3), circular recess (4), open stub (5) and ground plane (6); Described microstrip line, rectangle multimode resonant ring, circular recess, open stub are all printed on dielectric-slab upper surface; Described open stub is positioned at above rectangle resonator, and two microstrip lines become symmetrical about central shaft; Ground plane is positioned at dielectric-slab lower surface.
2. a kind of novel ultra broadband list notch filter according to claim 1, is characterized in that: rectangle multimode resonant ring (3) top loads open stub, and open stub is rectangle, is connected below open stub with rectangle multimode resonant ring (3).
3. a kind of novel ultra broadband list notch filter according to claim 1, is characterized in that: two microstrip lines (2) become symmetrical about central shaft, and are connected with 50 ohm transmission line respectively.
4. a kind of novel ultra broadband list notch filter according to claim 1, is characterized in that: circular recess (4) is connected to the first transmission path center, and becomes symmetrical about central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802360.9U CN204348873U (en) | 2014-12-18 | 2014-12-18 | A kind of novel ultra broadband list notch filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802360.9U CN204348873U (en) | 2014-12-18 | 2014-12-18 | A kind of novel ultra broadband list notch filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204348873U true CN204348873U (en) | 2015-05-20 |
Family
ID=53232123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420802360.9U Expired - Fee Related CN204348873U (en) | 2014-12-18 | 2014-12-18 | A kind of novel ultra broadband list notch filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204348873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876837A (en) * | 2015-12-10 | 2017-06-20 | 哈尔滨黑石科技有限公司 | A kind of new ultra wide band list notch filter |
-
2014
- 2014-12-18 CN CN201420802360.9U patent/CN204348873U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876837A (en) * | 2015-12-10 | 2017-06-20 | 哈尔滨黑石科技有限公司 | A kind of new ultra wide band list notch filter |
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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: 20150520 Termination date: 20161218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |