CN2879445Y - Integrated wave-guide rounded cavity filter for coplanar wave-guide coupling substrate - Google Patents
Integrated wave-guide rounded cavity filter for coplanar wave-guide coupling substrate Download PDFInfo
- Publication number
- CN2879445Y CN2879445Y CN 200620070949 CN200620070949U CN2879445Y CN 2879445 Y CN2879445 Y CN 2879445Y CN 200620070949 CN200620070949 CN 200620070949 CN 200620070949 U CN200620070949 U CN 200620070949U CN 2879445 Y CN2879445 Y CN 2879445Y
- Authority
- CN
- China
- Prior art keywords
- wave
- guide
- substrate
- circular cavity
- substrate integrated
- 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 - Lifetime
Links
Images
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present utility model discloses an integrated wave-guide rounded cavity filter for coplanar wave-guide coupling substrate used for microwave millimeter wave circuit. The filter includes a medium substrate which is disposed with metal patch on the upper and lower surfaces. The medium substrate is disposed with substrate integrate waveguide round chambers that coupled together by a coplanar wave-guide coupling device. The substrate integrate waveguide round chambers on the two side edges are respectively connected with microstrip lines and composed of metal through holes disposed and arranged in circle shape on the medium substrate. The utility model has the advantages of small volume, low cost, high quality factor, low insert waste, and easy integration.
Description
Technical field
The utility model relates to a kind of microwave and millimeter wave filter, relates in particular to a kind of common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter that can be used for the microwave and millimeter wave circuit design.
Background technology
The microwave and millimeter wave filter is a critical component of microwave millimeter Radio Frequency Subsystem, and particularly in the microwave and millimeter wave integrated circuit, radio-frequency front-end need be used low insertion loss, filter that selectivity is good.The filter that utilizes traditional manufacturing high quality factor microwave and millimeter wave wave filter technology (as traditional metal waveguide) to make has high quality factor value, low-loss advantage, but have simultaneously bulky, cost is high, be difficult to integrated shortcoming.Therefore, press for that a kind of volume is little, in light weight, high quality factor, low-loss, low cost, be easy to integrated microwave and millimeter wave filter, be beneficial to the design of microwave and millimeter wave integrated circuit.
Summary of the invention
The utility model provides a kind of common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter, and it is little to have a volume, and cost is low, high quality factor, and low insertion loss is easy to integrated advantage.
The utility model adopts following technical scheme:
A kind of common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter that is used for the microwave and millimeter wave circuit, be included in upper and lower two surfaces and be provided with the dielectric substrate of metal patch, on dielectric substrate, be provided with substrate integrated wave-guide circular cavity wave, between substrate integrated wave-guide circular cavity wave, be coupled by the co-planar waveguide coupler, be connected with microstrip line on the substrate integrated wave-guide circular cavity wave of both sides of the edge respectively being positioned at, above-mentioned substrate integrated wave-guide circular cavity wave is by being located on the dielectric substrate and constituting by the plated-through hole of circumferential arrangement.
Compared with prior art, the utlity model has following advantage:
The utility model has utilized substrate integrated wave-guide circular cavity wave to have high Q value, low-loss characteristics,, adopts co-planar waveguide to intercouple between the cavity, thereby makes its function admirable as elementary cell with substrate integrated wave-guide circular cavity wave.In structure of the present utility model, utilize at fluting on the metal skin plates and on dielectric substrate, beat a series of metal throuth hole and realize, thereby help integrated in the microwave and millimeter wave circuit design; Between this filter cavity, adopt the co-planar waveguide lotus root to close mode, make it have the advantage of coupling amount between easy adjusting cavity; The utility model adopts co-planar waveguide to the substrate integrated wave-guide cavity wave feed, makes it have the advantage of mating easily with the input and output microstrip line; Base unit of the present utility model is that the bottom surface is circular substrate integrated wave-guide cavity wave, makes it have the advantage of high quality factor (Q value).Advantage of the present utility model is specific as follows:
1) its transmission parameter has good squareness factor and selectivity, owing to adopt the co-planar waveguide lotus root to close mode, can transmit high-power;
2) with microstrip line as input/output interface, can be easily and microstrip line, coaxial line connects;
3) in the design of microwave and millimeter wave circuit, be easy to integrated.Owing to this filter is realized on dielectric substrate fully, and utilize the dielectric constant of dielectric substrate can regulate this filter size size very easily, thereby realization preferably and other microwave and millimeter wave circuit is integrated;
4) compare with attainable other shape substrate integrated wave-guide cavity wave, substrate integrated wave-guide circular cavity wave has the highest Q value and very low insertion loss.This is that so compare with microstrip circuit, its Q value is than higher because this structure has and the similar characteristic of circular metal waveguide, and loss ratio is lower.
5) cost is low.Dielectric substrate can adopt the various microwave-medium plates of type such as polytetrafluoroethylene pressing plate, polytetrafluoroethylene Ceramic Composite dielectric substrate, LTCC, and does not need the special process, so cost is low.
Description of drawings
Fig. 1 is a structural front view of the present utility model.
Fig. 2 is a structure vertical view of the present utility model.
Fig. 3 is a structure upward view of the present utility model.
Fig. 4 is a plated-through hole structural representation of the present utility model.
Fig. 5 is emulation of the present utility model and test result figure.
Embodiment
A kind of common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter that is used for the microwave and millimeter wave circuit, be included in, two surfaces are provided with metal patch 2 down, 3 dielectric substrate 1, on dielectric substrate 1, be provided with substrate integrated wave-guide circular cavity wave 4, between substrate integrated wave-guide circular cavity wave, be coupled by co-planar waveguide coupler 5, on the substrate integrated wave-guide circular cavity wave 4 that is positioned at both sides of the edge, be connected with microstrip line 6 respectively, 7, above-mentioned substrate integrated wave-guide circular cavity wave 4 is by being located on the dielectric substrate 1 and constituting by the plated-through hole 8 of circumferential arrangement, in the present embodiment, co-planar waveguide coupler 5 is for being opened in a pair of back-to-back " " groove on the metal patch 2; Microstrip line 6,7 is connected with substrate integrated wave-guide circular cavity wave 4 by coplanar wave guide feedback structure 61,71 respectively, above-mentioned plated-through hole 8 is to offer through hole on dielectric substrate, metallic sheath 81 is set on through-hole wall and metallic sheath and the metal patch that is overlying on the dielectric substrate bilateral are coupled together.The utility model is 2.65 at dielectric constant, realized its structure, the simulation result of scattering parameter and test result such as Fig. 5 on the thick 1 millimeter microwave-medium substrate.Its centre frequency is 5.88GHz, and minimum insertion loss is less than 1.92dB, and relative bandwidth is 3.2%, and band is outer to be suppressed at below the 40dB.
Claims (3)
1, a kind of common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter that is used for the microwave and millimeter wave circuit, it is characterized in that being included in, two surfaces are provided with metal patch (2 down, 3) dielectric substrate (1), on dielectric substrate (1), be provided with substrate integrated wave-guide circular cavity wave (4), between substrate integrated wave-guide circular cavity wave, be coupled by co-planar waveguide coupler (5), be connected with microstrip line (6 respectively being positioned on the substrate integrated wave-guide circular cavity wave of both sides of the edge (4), 7), plated-through hole (8) formation of circumferential arrangement is gone up and pressed to above-mentioned substrate integrated wave-guide circular cavity wave (4) by being located at dielectric substrate (1).
2, common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter according to claim 1 is characterized in that co-planar waveguide coupler (5) is for being opened in a pair of back-to-back " " shape groove on the metal patch (2).
3, common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter according to claim 1 and 2 is characterized in that microstrip line (6,7) is connected with substrate integrated wave-guide circular cavity wave (4) by coplanar wave guide feedback structure (61,71) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620070949 CN2879445Y (en) | 2006-04-05 | 2006-04-05 | Integrated wave-guide rounded cavity filter for coplanar wave-guide coupling substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620070949 CN2879445Y (en) | 2006-04-05 | 2006-04-05 | Integrated wave-guide rounded cavity filter for coplanar wave-guide coupling substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2879445Y true CN2879445Y (en) | 2007-03-14 |
Family
ID=37861864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620070949 Expired - Lifetime CN2879445Y (en) | 2006-04-05 | 2006-04-05 | Integrated wave-guide rounded cavity filter for coplanar wave-guide coupling substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2879445Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103878A (en) * | 2011-09-20 | 2014-10-15 | 杭州轩儒电子科技有限公司 | Millimeter wave filter |
| CN104241738A (en) * | 2014-09-16 | 2014-12-24 | 电子科技大学 | Substrate integrated waveguide tunable filter for loading PIN tube |
| CN105006615A (en) * | 2015-07-15 | 2015-10-28 | 南京航空航天大学 | SIW band-pass filter |
-
2006
- 2006-04-05 CN CN 200620070949 patent/CN2879445Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103878A (en) * | 2011-09-20 | 2014-10-15 | 杭州轩儒电子科技有限公司 | Millimeter wave filter |
| CN104241738A (en) * | 2014-09-16 | 2014-12-24 | 电子科技大学 | Substrate integrated waveguide tunable filter for loading PIN tube |
| CN104241738B (en) * | 2014-09-16 | 2017-06-20 | 电子科技大学 | A kind of substrate integration wave-guide tunable filter of loading PIN pipes |
| CN105006615A (en) * | 2015-07-15 | 2015-10-28 | 南京航空航天大学 | SIW band-pass filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2796133Y (en) | Electromagnetic band gap structure substate integrated wave guide cavity filter | |
| CN1851974A (en) | Common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter | |
| CN1925211A (en) | Half-modular substrate integral wave guide filter | |
| CN105119030A (en) | Ultra-wideband artificial surface Plasmon low-pass filter | |
| CN101615711A (en) | Folding self-die substrate integrated waveguide | |
| CN102709658A (en) | Half mode double-ridge substrate integrated waveguide with transitional balanced micro-strip lines | |
| CN2879445Y (en) | Integrated wave-guide rounded cavity filter for coplanar wave-guide coupling substrate | |
| CN200956399Y (en) | Substrate integrated waveguide quasi-inductive window filter | |
| CN103633399A (en) | Microstrip ultra wide stop band low pass filter | |
| CN2877052Y (en) | Direct coupled substrate integrated waveguide spheric cavity filter | |
| CN208849053U (en) | A kind of novel substrate integration groove gap waveguide | |
| CN2798332Y (en) | Integrated waveguide cavity filter with damaged bottom structure substrate | |
| CN2796130Y (en) | Low resistance-high resistance short microstrip line substrte integrated cavity filter | |
| CN109216838B (en) | Improved defected ground structure low-pass filter | |
| CN208849054U (en) | Curved novel substrate integration groove gap waveguide structure | |
| CN2888662Y (en) | High-performance waveguide filter with integrated microwave/millimeter wave substrate | |
| CN104767009B (en) | A kind of waveguide of comprehensive artificial surface phasmon device and the wave filter of substrate integration wave-guide | |
| CN2886828Y (en) | Millimeter wave positioning coupler | |
| CN212136660U (en) | Ridge waveguide power distribution synthesizer | |
| CN200950463Y (en) | Substrate integrated waveguide quasi-inductive through hole filter | |
| CN200950464Y (en) | Semi-module substrate integrated waveguide filter | |
| CN201562755U (en) | Wideband ridge horn antenna | |
| CN1928598A (en) | Substrate integrated waveguide quasi-sensitive window filter | |
| CN101217210B (en) | A three frequency band filter based on parallel coupled line structure | |
| CN114784475B (en) | Millimeter wave waveguide-suspended microstrip probe transition structure with microstrip filter branches |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070314 |
|
| EXPY | Termination of patent right or utility model |