CN1851974A - Common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter - Google Patents
Common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter Download PDFInfo
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- CN1851974A CN1851974A CN 200610039207 CN200610039207A CN1851974A CN 1851974 A CN1851974 A CN 1851974A CN 200610039207 CN200610039207 CN 200610039207 CN 200610039207 A CN200610039207 A CN 200610039207A CN 1851974 A CN1851974 A CN 1851974A
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Abstract
This invention discloses a coplane waveguide coupled chip integrated waveguide round cavity filter used in microwave and millimeter wave circuit including a medium chip set with metal pastes on the top and bottom faces, in which, chip integrated waveguide round cavities are set on the medium chip to be coupled by a coplane waveguide coupler, micro-strip lines are connected on the chip integrated waveguide round cavities at the edges of both sides, said round cavities are composed of metal through holes on the medium chip and arrayed in circle.
Description
Technical field
The present invention relates to a kind of microwave and millimeter wave filter, relate 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 invention provides a kind of common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter, it is little to have a volume, and cost is low, high quality factor, and low insertion loss is easy to integrated advantage.
The present invention 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 present invention has following advantage:
The present invention 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 invention, 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 present invention 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 invention 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 invention 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 invention.
Fig. 2 is a structure vertical view of the present invention.
Fig. 3 is a structure upward view of the present invention.
Fig. 4 is a plated-through hole structural representation of the present invention.
Fig. 5 is emulation of the present invention 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 on the metal patch 2
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 200610039207 CN1851974A (en) | 2006-03-30 | 2006-03-30 | Common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610039207 CN1851974A (en) | 2006-03-30 | 2006-03-30 | Common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1851974A true CN1851974A (en) | 2006-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610039207 Pending CN1851974A (en) | 2006-03-30 | 2006-03-30 | Common-face wave-guide coupling-substrate integrated wave-guide circular cavity wave-filter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350437B (en) * | 2007-07-20 | 2012-06-27 | 财团法人工业技术研究院 | Coupled structure for non-neighbouring vertical resonance cavity |
| CN104241738A (en) * | 2014-09-16 | 2014-12-24 | 电子科技大学 | Substrate integrated waveguide tunable filter for loading PIN tube |
| CN106450609A (en) * | 2016-10-28 | 2017-02-22 | 中国矿业大学 | Cross-coupling band-pass filter based on circular substrate integrated waveguide resonance cavity |
| CN111276781A (en) * | 2020-03-11 | 2020-06-12 | 东南大学 | High-order mode substrate integrated waveguide circular cavity filter based on through hole disturbance |
| WO2024016727A1 (en) * | 2022-07-19 | 2024-01-25 | 东南大学 | Substrate-integrated waveguide duplexer with multi-mode coupling of rectangular cavity and circular cavities |
| CN117497979A (en) * | 2024-01-03 | 2024-02-02 | 成都威频通讯技术有限公司 | SIW band-pass filter based on SSPP structure |
-
2006
- 2006-03-30 CN CN 200610039207 patent/CN1851974A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350437B (en) * | 2007-07-20 | 2012-06-27 | 财团法人工业技术研究院 | Coupled structure for non-neighbouring vertical resonance cavity |
| 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 |
| CN106450609A (en) * | 2016-10-28 | 2017-02-22 | 中国矿业大学 | Cross-coupling band-pass filter based on circular substrate integrated waveguide resonance cavity |
| CN111276781A (en) * | 2020-03-11 | 2020-06-12 | 东南大学 | High-order mode substrate integrated waveguide circular cavity filter based on through hole disturbance |
| CN111276781B (en) * | 2020-03-11 | 2021-09-07 | 东南大学 | High-order mode substrate integrated waveguide circular cavity filter based on through hole disturbance |
| WO2024016727A1 (en) * | 2022-07-19 | 2024-01-25 | 东南大学 | Substrate-integrated waveguide duplexer with multi-mode coupling of rectangular cavity and circular cavities |
| CN117497979A (en) * | 2024-01-03 | 2024-02-02 | 成都威频通讯技术有限公司 | SIW band-pass filter based on SSPP structure |
| CN117497979B (en) * | 2024-01-03 | 2024-04-09 | 成都威频通讯技术有限公司 | SIW band-pass filter based on SSPP structure |
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