CN202930511U - UWB filter with ultra-high stop-band suppression effect - Google Patents
UWB filter with ultra-high stop-band suppression effect Download PDFInfo
- Publication number
- CN202930511U CN202930511U CN 201220656617 CN201220656617U CN202930511U CN 202930511 U CN202930511 U CN 202930511U CN 201220656617 CN201220656617 CN 201220656617 CN 201220656617 U CN201220656617 U CN 201220656617U CN 202930511 U CN202930511 U CN 202930511U
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- China
- Prior art keywords
- counterfoil
- superelevation
- filter
- uwb
- stopband inhibition
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Abstract
Disclosed in the utility model is a UWB filter with an ultra-high stop-band suppression effect. The filter comprises a dielectric substrate (104), a multimode resonant cavity (101) arranged on the dielectric substrate, a dual-U type stub (103), a combination type transmission coupling line (102), and a metal ground plate (105) arranged below the dielectric substrate. According to utility model, the multimode resonant cavity is used to realize the requirements of the passband width and the passband adjustability of the UWB; and the dual-U type stub enables the ultra-high stop-band suppression effect to be realized. Moreover, the provided filter has advantages of simple design, compact structure, convenient processing, and low cost.
Description
Technical field
The utility model relates to a kind of UWB filter of superelevation stopband inhibition, and this filter passband is adjustable.
Background technology
In February, 2002, FCC (FCC) approval 3.1-10.6GHz frequency range is used for business telecommunication, so UWB is widely used.The UWB technology has broad application prospects, such as all having a wide range of applications in various fields such as Technology in High-speed WPAN, wireless ether interface link, intelligent wireless local area network.As one of Primary Component in the UWB communication system, ultra-wide band filter obtains broad research.
Some mentalities of designing occurred in recent years, as adopted novel racemosus joint to load multimode resonator, realize superelevation stopband inhibition, but the passband of broadband filter has been non-adjustable.So the design passband is adjustable, and has superelevation stopband inhibition UWB filter important meaning is arranged.
The utility model content
The purpose of this utility model is to provide the UWB filter with superelevation stopband inhibition, and this filter passband is adjustable.
The technical scheme that the utility model adopts:
A kind of novel UWB filter with superelevation stopband inhibition, it is characterized in that, comprise the multimode cavity (101) that is formed at the dielectric-slab upper surface, double-U-shaped counterfoil (103), combined transmission coupling line (102), affiliated multimode cavity comprises that annulus loads counterfoil (1011), microstrip transmission line (1012), straight-flanked ring loads counterfoil (1013) and open circuit loads counterfoil (1014).
The UWB filter of described novel superelevation stopband inhibition is characterized in that having the microstrip structure (103) of two U-shaped counterfoils (1031) (1032), produces superelevation stopband inhibition; And the width on each limit of U-shaped counterfoil equates, and each broadside equates with the gap of straight-flanked ring.
The described novel UWB filter with superelevation stopband inhibition is characterized in that, combined transmission coupling line (102) is open circuit toe structure, and the width of every toe equates with gap between each toe.
The described novel UWB filter with superelevation stopband inhibition, it is characterized in that, multimode cavity load counterfoil (1011), microstrip transmission line (1012) and straight-flanked ring loading counterfoil (1013) by annulus, open circuit loads counterfoil (1014) and consists of, and loads the radius of counterfoil (1011) and the ultra broadband that transmission line (1012) length and width produce 3.1-10.6GHz by adjusting annulus.
This utility model filter has following characteristic and advantage with respect to existing filter:
Simplicity of design, compact conformation, easy to process, with low cost, trap is adjustable.
By adjusting the size of multimode resonator (101), can regulate passband at UWB(3.1-10.6GHz) scope.
By adjusting the size of double-U-shaped counterfoil (103), can realize superelevation stopband inhibition.
Description of drawings
Fig. 1 is the basic structure vertical view of the utility model embodiment 1;
Fig. 2 is the basic structure end view of the utility model embodiment 1;
Fig. 3 is the multimode cavity structure chart of the utility model embodiment 1;
Fig. 4 is the double-U-shaped counterfoil structure chart of the utility model embodiment 1;
Embodiment
The utility model has designed the UWB filter of superelevation stopband inhibition, and this filter passband is adjustable.
Below in conjunction with the accompanying drawing distance, utility model is done more detailed description:
An example of the present utility model as shown in Figure 2, medium substrate (104) is that dielectric constant is 10.2 RT/Duroid 6010.The thickness of this medium substrate is 1.27mm, and the dielectric loss tangent angle is 0.0023.Metal ground plate under medium substrate (105) adopts copper product.
As shown in Figure 1, the UWB filter of superelevation stopband inhibition of the present utility model, the multimode cavity on medium substrate (101), double-U-shaped counterfoil (103), combined transmission coupling line (102) adopt copper product.
As shown in Figure 3, the UWB filter of superelevation stopband inhibition of the present utility model, its multimode cavity comprises that annulus loads counterfoil (1011), microstrip transmission line (1012) and straight-flanked ring and loads counterfoil (1013), open circuit loads counterfoil (1014), realizes broadband character by multimode cavity.
As shown in Figure 4, the UWB filter of the utility model superelevation stopband inhibition adopts two U-shaped counterfoils (1031) (1032), adjusts the size of U-shaped counterfoil, can realize superelevation stopband inhibition.
The design parameter of the UWB filter of this utility model superelevation stopband inhibition:
The selection of medium substrate: dielectric constant is 10.2 RT/Duroid 6010.The dielectric constant of general medium substrate is between 2--9.8, and the utility model adopts 10.2 substrate,, high dielectric constant makes the guide wavelength of signal less, and it is less that circuit can be done.The dielectric loss tangent angle of substrate is 0.0023, has guaranteed that loss is less.The thickness of this medium substrate is that 1.27mm satisfies required intensity.Multimode cavity and the metal ground plate under medium substrate on medium substrate all adopt copper product.
The design of multimode resonator: according to the filter correlation theory, the circular ring structure resonant element of ultra-wideband communications is satisfied in design.By adjusting annular radii and transmission line length and width, adjust bandwidth and cut-off frequency, make related filter satisfy the UWB demand.
Claims (4)
1. novel UWB filter with superelevation stopband inhibition, it is characterized in that, comprise the multimode cavity (101) that is formed at the dielectric-slab upper surface, double-U-shaped counterfoil (103), combined transmission coupling line (102), affiliated multimode cavity comprises that annulus loads counterfoil (1011), microstrip transmission line (1012), straight-flanked ring loads counterfoil (1013) and open circuit loads counterfoil (1014).
2. the UWB filter with superelevation stopband inhibition according to claim 1, is characterized in that, has the microstrip structure (103) of two U-shaped counterfoils (1031) (1032), produces superelevation stopband inhibition; And the width on each limit of U-shaped counterfoil equates, and each broadside equates with the gap of straight-flanked ring.
3. the UWB filter with superelevation stopband inhibition according to claim 1, is characterized in that, combined transmission coupling line (102) is open circuit toe structure, and the width of every toe equates with gap between each toe.
4. the UWB filter with superelevation stopband inhibition according to claim 1 and 2, it is characterized in that, being made of annulus loading counterfoil (1011), microstrip transmission line (1012) and straight-flanked ring loading counterfoil (1013), the loading counterfoil (1014) of opening a way of multimode cavity is by the radius of adjustment annulus loading counterfoil (1011) and the ultra broadband of transmission line (1012) length and width generation 3.1-10.6GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656617 CN202930511U (en) | 2012-12-04 | 2012-12-04 | UWB filter with ultra-high stop-band suppression effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656617 CN202930511U (en) | 2012-12-04 | 2012-12-04 | UWB filter with ultra-high stop-band suppression effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202930511U true CN202930511U (en) | 2013-05-08 |
Family
ID=48220430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220656617 Expired - Fee Related CN202930511U (en) | 2012-12-04 | 2012-12-04 | UWB filter with ultra-high stop-band suppression effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202930511U (en) |
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2012
- 2012-12-04 CN CN 201220656617 patent/CN202930511U/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 | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Hongfeng Inventor after: Zhu Meimei Inventor after: Yu Renjie Inventor after: Liu Chengyuan Inventor after: Wu Yongfei Inventor before: Yu Renjie Inventor before: Liu Chengyuan Inventor before: Wu Yongfei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YU RENJIE LIU CHENGYUAN WU YONGFEI TO: WU HONGFENG ZHU MEIMEI YU RENJIE LIU CHENGYUAN WU YONGFEI |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20151204 |
|
| EXPY | Termination of patent right or utility model |