CN203056048U - Novel multifunctional loop filter - Google Patents
Novel multifunctional loop filter Download PDFInfo
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- CN203056048U CN203056048U CN 201220656574 CN201220656574U CN203056048U CN 203056048 U CN203056048 U CN 203056048U CN 201220656574 CN201220656574 CN 201220656574 CN 201220656574 U CN201220656574 U CN 201220656574U CN 203056048 U CN203056048 U CN 203056048U
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Abstract
The utility model discloses a novel multifunctional filter characterized in that the filter comprises a metal microstrip paster (10) and a metal grounding plate (40) which are formed on the upper and lower surfaces of a medium plate (20), wherein the metal microstrip paster (10) is arranged on the medium plate (20), the metal grounding plate (40) is arranged below the medium plate (20), and the metal microstrip paster (10) mainly comprises a resonant cavity (30). The filter provided by the utility model is designed by combining characteristics of antennas and filters and prevents the problem of interferences caused after independent designing of the two types of devices. The filter provided by the utility model is compact in structure, easy to process, wide in application scope, concentrated in antenna emission band, low in cost, high in performance, and hopefully applicable to wireless technologies.
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 multi-functional ring mode filter of filter.
Background technology
Be the epoch of communication now, flourish along with wireless communication system and mobile phone technology, wireless telecommunications contact these people's life closely, influence these people's life.The fast development of wireless communication technique, wireless device develops to microminiaturization.
Yet because antenna and filter are separately designs on the traditional sense, increased system bulk and design cost like this, easily caused the mismatch between parts simultaneously, reduced the efficient of system.
Some new mentalities of designing have appearred in recent years, dwindle structure, improve the devices use rate, but antenna and Filter Design are more and more important under the integrated prerequisite of systematic large-scale, have 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 its objective is that be one in order to design a kind of in conjunction with antenna and filter, and usage range is the multi-functional ring mode filter widely.
The technical scheme that the utility model adopts:
Described novel loop aerial 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 novel multifunctional loop filter is characterized in that, resonant cavity (30) comprises circular air structure.
Described novel multifunctional loop 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 emission frequency.
(3) by changing the inner circular radius, the size that perhaps 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.
Description of drawings
Fig. 1 is the basic structure stereogram of multi-functional ring mode filter of the present utility model;
Fig. 2 is the basic structure front view of multi-functional ring mode filter of the present utility model;
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 novel model, and this Filter Structures compactness is easy to processing, and is 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, multi-functional ring mode filter of the present utility model.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.Among the figure, r
1, r
2And r
3Be respectively three loop configuration, the radius of circular air structure is r in the middle circle
4, d
1, d
2, d
3Be followed successively by the distance between the annulus from inside to outside, d
7Be the width of two-port coupled section, the filter feed port is d
5, antenna feed end microstrip line is wide to be d
6
The basic structure front view of Fig. 2 multi-functional ring mode filter, wherein h
jBe 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 metal micro-strip paster 10 resonant cavitys 30 of dielectric-slab upper surface and fractal structure 31 two parts are formed.That this filter connects is common driving source (50 Ω).
The characteristic that realizes antenna and filter that arranges by 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. novel multifunctional loop 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. according to the described novel multifunctional loop filter of claim 1, it is characterized in that resonant cavity (30) comprises circular air structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656574 CN203056048U (en) | 2012-12-04 | 2012-12-04 | Novel multifunctional loop filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656574 CN203056048U (en) | 2012-12-04 | 2012-12-04 | Novel multifunctional loop filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203056048U true CN203056048U (en) | 2013-07-10 |
Family
ID=48738970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220656574 Expired - Fee Related CN203056048U (en) | 2012-12-04 | 2012-12-04 | Novel multifunctional loop filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203056048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529514A (en) * | 2016-01-14 | 2016-04-27 | 南京航空航天大学 | Circular-ring multi-mode coupling ultra-wideband micro-strip band-pass filter |
-
2012
- 2012-12-04 CN CN 201220656574 patent/CN203056048U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529514A (en) * | 2016-01-14 | 2016-04-27 | 南京航空航天大学 | Circular-ring multi-mode coupling ultra-wideband micro-strip band-pass filter |
| CN105529514B (en) * | 2016-01-14 | 2018-04-17 | 南京航空航天大学 | A kind of annulus multi-model coupling super wide band microstrip bandpass filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20131204 |