CN203326089U - Improved multifunctional ring filter - Google Patents
Improved multifunctional ring filter Download PDFInfo
- Publication number
- CN203326089U CN203326089U CN2012206628294U CN201220662829U CN203326089U CN 203326089 U CN203326089 U CN 203326089U CN 2012206628294 U CN2012206628294 U CN 2012206628294U CN 201220662829 U CN201220662829 U CN 201220662829U CN 203326089 U CN203326089 U CN 203326089U
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- China
- Prior art keywords
- filter
- strip paster
- antenna
- ring filter
- improved multifunctional
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Abstract
The utility model discloses an improved multifunctional ring filter. The improved multifunctional ring filter is characterized by comprising a metal micro-strip paster (10) and a metal grounding plate (40) which are respectively formed at an upper surface and a lower surface of a medium plate (20), the metal micro-strip paster (10) is arranged above the medium plate (20), the metal grounding plate (40) is arranged below the medium plate (20), the metal micro-strip paster mainly comprises a resonant cavity (30). The improved multifunctional ring filter is designed by integrating characteristics of an antenna and a filter, settles a problem of interference caused by two independently-designed devices, has properties of compact structure, easy processing, wide application scope, concentrated antenna emission frequency bands, low cost and high performance and can be applied to wireless technology due to the wide application scope.
Description
Technical field
The utility model relates to antenna technology and wave filter technology, and particularly a kind of compact conformation, size are little, antenna and the improved multi-functional ring mode filter of filter.
Background technology
The epoch of communication now, flourish along with wireless communication system and mobile phone telephony, wireless telecommunications contact these people's life closely, affect these people's life.The fast development of wireless communication technique, wireless device develops to microminiaturization.
Yet because antenna on traditional sense and filter are designs separately, increased like this system bulk and design cost, easily caused the mismatch between parts simultaneously, reduced the efficiency of system.
The mentality of designing that some are new has appearred in recent years, dwindle structure, improve the devices use rate, but at systematic large-scale under integrated prerequisite the design of antenna and filter more and more important, there is important meaning so design has the resonator of antenna and filter two specific characters.
The utility model content
The resonance characteristic of the utility model utilization ring resonance structure and fractal structure to its objective is in order designing and a kind ofly to be integrated in conjunction with antenna and filter that usage range is the multi-functional ring mode filter widely.
The technical scheme that the utility model adopts:
Described improved multi-functional ring mode filter, it is characterized in that, comprise the metal micro-strip paster (10) and the metal ground plate (40) that are formed at the upper and lower surface of dielectric-slab (20), the top of dielectric-slab (20) is metal micro-strip paster (10), the below of dielectric-slab (20) is metal ground plate (40), and described metal micro-strip paster mainly comprises resonant cavity (30).
Described improved multi-functional ring mode filter is characterized in that resonant cavity (30) comprises leg-of-mutton air structure.
Described improved multi-functional ring mode filter, is characterized in that, in conjunction with the antenna resonant cavity.
The utility model has following advantage and characteristic with respect to prior art:
(1) compact conformation, size are little, are easy to processing, and make low price.
(2) in the center frequency point of fixed filters passband, can be by changing fractal iterations correction antenna transmission frequency.
(3) by change the inner circular radius and wait as the triangle length of side, or the size that changes the dielectric constant of dielectric-slab can be adjusted the size of passband of antenna and the position of center frequency point.
(4) change antenna and filter characteristic by changing the circular resonant chamber.
The accompanying drawing explanation
Fig. 1 is the basic structure stereogram of this practical improved multi-functional ring mode filter;
Fig. 2 is the basic structure front view of this practical improved multi-functional ring mode filter;
Embodiment
In recent years, in the design of filter and antenna, mainly pay close attention to independent design, the design of collective model is a New model, and the compact conformation of this filter is easy to processing, applied widely, is expected to be applied in wireless technology.The utility model filter is to utilize resonance structure and fractal characteristic, has designed a kind of low cost, high-performance, the loop aerial filter that the scope of application is wider.
Below in conjunction with accompanying drawing, concrete structure of the present utility model is further described.
As shown in Figure 1, this practical improved multi-functional ring mode filter.Wherein, dielectric-slab (20) upper surface is metal micro-strip paster (10), and the lower surface of dielectric-slab is metal ground plate (40).Described metal micro-strip paster 10 comprises multimode cavity 30 and fractal structure 31, and wherein fractal structure is to consist of a triangle and a circular configuration.In figure, r
1,r
2And r
3Be respectively three loop configuration, the length of side of equilateral triangle is d
8, the radius of middle circular configuration is r
4, d
1, d
2, d
3Be followed successively by the distance between annulus from inside to outside, d
7For the width of two-port coupled section, the filter feed port is d
5, antenna feed end microstrip line is wide is d
6.
The basic structure front view of the improved multi-functional ring mode filter of Fig. 2, wherein h
jFor the thickness of medium, h
tThickness for metal patch and floor.
The operation principle of this filter is basic filter and Principle of Antenna, and the metal micro-strip paster 10 of dielectric-slab upper surface is comprised of resonant cavity 30 and fractal structure 31 two parts.That this filter connects is common driving source (50 Ω).
Realize the characteristic of antenna and filter by arranging of this structure different parameters, variation along with some structural parameters (size of the length of side of square structure and circular resonant device) of filter, the center frequency point of this filter is also changing, and the emission frequency of antenna is also changing.
Claims (2)
1. an improved multi-functional ring mode filter, it is characterized in that, comprise the metal micro-strip paster (10) and the metal ground plate (40) that are formed at the upper and lower surface of dielectric-slab (20), the top of dielectric-slab (20) is metal micro-strip paster (10), the below of dielectric-slab (20) is metal ground plate (40), and described metal micro-strip paster mainly comprises resonant cavity (30).
2. improved multi-functional ring mode filter according to claim 1, is characterized in that, resonant cavity (30) comprises leg-of-mutton air structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206628294U CN203326089U (en) | 2012-12-05 | 2012-12-05 | Improved multifunctional ring filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206628294U CN203326089U (en) | 2012-12-05 | 2012-12-05 | Improved multifunctional ring filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203326089U true CN203326089U (en) | 2013-12-04 |
Family
ID=49665389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206628294U Expired - Fee Related CN203326089U (en) | 2012-12-05 | 2012-12-05 | Improved multifunctional ring filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203326089U (en) |
-
2012
- 2012-12-05 CN CN2012206628294U patent/CN203326089U/en not_active Expired - Fee Related
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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: 20131204 Termination date: 20151205 |
|
| EXPY | Termination of patent right or utility model |