CN200956399Y - Substrate integrated waveguide quasi-inductive window filter - Google Patents
Substrate integrated waveguide quasi-inductive window filter Download PDFInfo
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- CN200956399Y CN200956399Y CN 200620077251 CN200620077251U CN200956399Y CN 200956399 Y CN200956399 Y CN 200956399Y CN 200620077251 CN200620077251 CN 200620077251 CN 200620077251 U CN200620077251 U CN 200620077251U CN 200956399 Y CN200956399 Y CN 200956399Y
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Abstract
A substrate integrated waveguide filter with a quasi-inductive window is used for designing a microwave/millimeter wave circuit or a microwave/millimeter wave integrated circuit, which comprises a metal sheet (1), a dielectric substrate (2) and a metal through-hole (3); wherein, the metal sheet (1) is applied on the dielectric substrate (2); the metal sheet (1), as the main body of the filter, has a rectangular middle portion and funnel-shaped ports symmetrically arranged at both ends; four pairs of metal through-holes (31) are provided from an input port (4) to an output port (5) on the middle rectangular portion, wherein metal through-holes are arranged in four rows, in which four large metal through-holes are arranged as two middle rows and four smaller metal through-holes are arranged at both sides of the middle large metal through-holes. The filter has a simpler structure comparing with that of an original substrate integrated waveguide filter with an inductive window, which has an easy integration of filter elements, a low manufacturing cost and a simple structure.
Description
Technical field
The utility model is a kind of design that can be applied to the microwave and millimeter wave circuit, also can be used for the substrate integrated waveguide quasi-sensitive window filter of microwave and millimeter wave integrated circuit (IC) design.The technical field that belongs to microwave filter.
Background technology
The center of microwave and millimeter wave filter many design problems in the microwave and millimeter wave radio system is as in frequency converter, frequency multiplier and multichannel communication.Electromagnetic spectrum is limited, must be distributed by using; And filter both can be used for limiting high-power transmitter radiation in allocated frequency band, had conversely to can be used to prevent that receiver is subjected to working band interference in addition.Utilize the microwave and millimeter wave metal waveguide can produce high Q value, low-loss, high performance microwave filter, but this filter at first is difficult to processing, needs very high machining accuracy; Secondly production cost is relatively more expensive; The 3rd this filter body is long-pending huger, is difficult to be applied among the design of microwave, millimetre integrated circuit.Therefore, press for high-performance, little, in light weight, the high Q value of volume, 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
Technical problem: the purpose of this utility model provides a kind of substrate integrated waveguide quasi-sensitive window filter, this filter is simpler with respect to original substrate integration wave-guide sensitive window filter structure, that this filter utensil is easy to is integrated, processing cost is cheaper, characteristic of simple structure, is suitable for the design of microwave and millimeter wave integrated circuit; Compare with microstrip structure and to have higher Q value, lower loss.
Technical scheme: substrate integrated waveguide quasi-sensitive window filter of the present utility model comprises metal patch, dielectric substrate, metal throuth hole; Metal patch is arranged on the dielectric substrate, middle part as the metal patch of filter main body is a rectangle, two is to being called the port of " funnel " shape, the direction of metal throuth hole along input to output arranged have four pairs in the rectangle in the middle of the metal patch in the middle of, the intermetallic metal through hole divides four rows to arrange, two rows in the middle of wherein 4 intermetallic metal large through-holes are positioned at, other 4 intermetallic metal small through hole are positioned at the both sides of metal through hole broad in the middle.Aperture vr=0.2～the 0.8mm of metal throuth hole 3, pitch-row d=0.8～1.2mm.Micro belt line width w=1～2mm, impedance transformer width tw=6.3～6.9mm, impedance transformer length tl=13～15mm, substrate integration wave-guide width a=15～16.2mm, metal throuth hole aperture vr1=0.8～1.2mm in the middle of first couple, metal throuth hole aperture vr2=1.8～2.2mm in the middle of second couple, metal throuth hole aperture vr3=1.8～2.2mm in the middle of the 3rd couple, metal throuth hole aperture vr4=0.8～1.2mm in the middle of the 4th couple, metal throuth hole pitch-row w1=7～7.24mm in the middle of first couple, metal throuth hole pitch-row w2=6.7～6.82mm in the middle of second couple, metal throuth hole pitch-row w3=6.7～6.82mm in the middle of the 3rd couple, metal throuth hole pitch-row w4=7～7.24mm in the middle of the 4th couple, first cavity length l1=10～11.2mm, first cavity length l2=11.03～12.23mm, the 3rd cavity length l3=10～11.2mm.
Substrate integrated waveguide quasi-sensitive window filter is to have utilized the rectangular metal waveguide to have high Q value, low-loss characteristics, has at first realized substrate integration wave-guide on the basis of dielectric substrate, and this waveguide has and the similar transmission characteristic of rectangular metal waveguide; Then, between the substrate integration wave-guide resonant cavity, constitute the substrate integrated waveguide quasi-sensitive window structure, utilize the quasi-sensitive window structure can control coupling between the substrate integration wave-guide resonant cavity, thereby play filter action with the pair of metal through hole.We have realized two kinds of substrate integrated waveguide quasi-sensitive window filters, adopt the metal throuth hole of different and same diameter to realize the quasi-sensitive window structure respectively.In the structure of this substrate integrated waveguide quasi-sensitive window filter, the design of some below we have mainly noted:
1 :) all structures all are to utilize to beat a series of metal throuth hole array realize on dielectric substrate, thus help this substrate integrated waveguide quasi-sensitive window filter integrated in the microwave and millimeter wave circuit design;
2 :) filter function of quasi-sensitive window filter mainly is to realize by intercoupling of quasi-sensitive window structure control series connection substrate integration wave-guide resonant cavity, so the quasi-sensitive window structure Design in the substrate integration wave-guide plays important effect to whole substrate integrated waveguide quasi-sensitive window filter;
Beneficial effect: substrate integrated waveguide quasi-sensitive window filter has the following advantages:
1 :) this substrate integrated waveguide quasi-sensitive window filter is easy to integrated in the design of microwave and millimeter wave circuit.This is because this filter device is realized on dielectric substrate fully, utilizes the dielectric constant of dielectric substrate can regulate the size of this filter size very easily, thereby realizes preferably and other microwave and millimeter wave circuit integrated;
2 :) have a preferable performance.Its characteristic and traditional metal waveguide sensitive window filter device are similar, thereby have preferable performance;
3 :) this substrate integrated waveguide quasi-sensitive window filter utensil has higher Q value, lower loss.This is that so compare with microstrip circuit, its Q value is than higher because this structure has and the similar characteristic of rectangular metal waveguide, and loss ratio is lower;
4 :) structure is simpler.Because just can realize the quasi-sensitive window structure, so the substrate integrated waveguide quasi-sensitive window filter structure is simpler by the pair of metal through hole.
Description of drawings
Fig. 1 is the structural representation of substrate integrated waveguide quasi-sensitive window filter.
Fig. 2 is the actual test result of substrate integrated waveguide quasi-sensitive window filter.
Have among the above figure: metal patch 1, dielectric substrate 2, metal throuth hole 3, intermetallic metal through hole 31, input 4, output 5, micro belt line width w, impedance transformer width tw, impedance transformer length tl, metal throuth hole 3 aperture vr, between the metal throuth hole 3 apart from d, substrate integration wave-guide width a, metal throuth hole aperture vr1 in the middle of first couple, metal throuth hole aperture vr2 in the middle of second couple, metal throuth hole aperture vr3 in the middle of the 3rd couple, metal throuth hole aperture vr4 in the middle of the 4th couple, metal throuth hole pitch-row w1 in the middle of first couple, metal throuth hole pitch-row w2 in the middle of second couple, metal throuth hole pitch-row w3 in the middle of the 3rd couple, metal throuth hole pitch-row w4 in the middle of the 4th couple, the first cavity length l1, the first cavity length l2, the 3rd cavity length l3.
Embodiment
Substrate integrated waveguide quasi-sensitive window filter of the present utility model comprises metal patch 1, dielectric substrate 2, metal throuth hole 3; Metal patch (is arranged on the dielectric substrate 2, middle part as the metal patch 1 of filter main body is a rectangle, two is to being called the port of " funnel " shape, in the middle of in the rectangle in the middle of the metal patch 1, having four pairs metal throuth holes 31 along input 4 to output 5 direction arrange, the intermetallic metal through hole divides four rows to arrange, two rows in the middle of wherein 4 intermetallic metal large through-holes are positioned at, other 4 intermetallic metal small through hole are positioned at the both sides of metal through hole broad in the middle.The outside line of metal through hole broad in the middle is formed a little rectangle, and the outside line of small through hole is formed a large rectangle in the middle of the metal.Aperture vr=0.2～the 0.8mm of metal throuth hole 3, pitch-row d=0.8～1.2mm.Micro belt line width w=1～2mm, impedance transformer width tw=6.3～6.9mm, impedance transformer length tl=13～15mm, substrate integration wave-guide width a=15～16.2mm, metal throuth hole aperture vr1=0.8～1.2mm in the middle of first couple, metal throuth hole aperture vr2=1.8～2.2mm in the middle of second couple, metal throuth hole aperture vr3=1.8～2.2mm in the middle of the 3rd couple, metal throuth hole aperture vr4=0.8～1.2mm in the middle of the 4th couple, metal throuth hole pitch-row w1=7～7.24mm in the middle of first couple, metal throuth hole pitch-row w2=6.7～6.82mm in the middle of second couple, metal throuth hole pitch-row w3=6.7～6.82mm in the middle of the 3rd couple, metal throuth hole pitch-row w4=7～7.24mm in the middle of the 4th couple, first cavity length l1=10～11.2mm, first cavity length l2=11.03～12.23mm, the 3rd cavity length l3=10～11.2mm.
We have realized two kinds of substrate integrated waveguide quasi-sensitive window filters of above introduction at X-band. the diameter vr that is used for constituting the integrated waveguide metal through hole of medium is 0.4m, spacing d between the through hole is 0.8mm, the electric relatively dielectric constant of dielectric substrate is 2.25, two kinds of Filter Structures as shown in drawings, its structural parameters are as shown in the table respectively:
| w(mm) | 1.5 | ?vr4 ?(mm) | 1 |
| tw(mm) | 6.6 | ?w1(mm) | 7.12 |
| tl(mm) | 14 | ?w2(mm) | 6.76 |
| d(mm) | 0.8 | ?w3(mm) | 6.76 |
| vr(mm) | 0.2 | ?W4(mm) | 7.12 |
| vr1 (mm) | 1 | ?l1(mm) | 10.6 |
| vr2 (mm) | 2 | ?l2(mm) | 11.63 |
| vr3 (mm) | 2 | ?l3(mm) | 10.6 |
| a(mm) | 15.6 |
Below be the test result of filter:
Substrate integration wave-guide has and the similar transmission characteristic of rectangular metal waveguide.We have made full use of this characteristic by designed substrate integrated waveguide quasi-sensitive window filter, and form the quasi-sensitive window structure with the pair of metal through hole, with the coupling between the control substrate integration wave-guide resonant cavity, thereby realized the performance of substrate integrated waveguide quasi-sensitive window filter.
1 :) a kind of substrate integrated waveguide quasi-sensitive window filter proposed, quality factor height, little, in light weight, the easy processing of volume, cost is low and convenient integrated;
2 :) with respect to existing substrate integration wave-guide sensitive window filter, structure is simpler;
3 :) whole substrate integrated waveguide quasi-sensitive window filter realized by the metal throuth hole array on the dielectric substrate fully.
Claims (3)
1. a substrate integrated waveguide quasi-sensitive window filter is characterized in that this filter comprises metal patch (1), dielectric substrate (2), metal throuth hole (3); Metal patch (1) is arranged on the dielectric substrate (2), middle part as the metal patch (1) of filter main body is a rectangle, two is to being called the port of " funnel " shape, the direction of metal throuth hole (31) along input (4) to output (5) arranged have four pairs in the rectangle in the middle of the metal patch (1) in the middle of, the intermetallic metal through hole divides four rows to arrange, two rows in the middle of wherein 4 intermetallic metal large through-holes are positioned at, other 4 intermetallic metal small through hole are positioned at the both sides of metal through hole broad in the middle.
2. substrate integrated waveguide quasi-sensitive window filter according to claim 1 is characterized in that the aperture vr=0.2～0.8mm of metal throuth hole (3), pitch-row d=0.8～1.2mm.
3. substrate integrated waveguide quasi-sensitive window filter according to claim 1 is characterized in that the micro belt line width w=1～2mm on the metal patch (1), impedance transformer width tw=6.3～6.9mm, impedance transformer length tl=13～15mm, substrate integration wave-guide width a=15～16.2mm, metal throuth hole aperture vr1=0.8～1.2mm in the middle of first couple, metal throuth hole aperture vr2=1.8～2.2mm in the middle of second couple, metal throuth hole aperture vr3=1.8～2.2mm in the middle of the 3rd couple, metal throuth hole aperture vr4=0.8～1.2mm in the middle of the 4th couple, metal throuth hole pitch-row w1=7～7.24mm in the middle of first couple, metal throuth hole pitch-row w2=6.7～6.82mm in the middle of second couple, metal throuth hole pitch-row w3=6.7～6.82mm in the middle of the 3rd couple, metal throuth hole pitch-row w4=7～7.24mm in the middle of the 4th couple, first cavity length l1=10～11.2mm, first cavity length l2=11.03～12.23mm, the 3rd cavity length l3=10～11.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200620077251 CN200956399Y (en) | 2006-09-22 | 2006-09-22 | Substrate integrated waveguide quasi-inductive window filter |
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| CN 200620077251 CN200956399Y (en) | 2006-09-22 | 2006-09-22 | Substrate integrated waveguide quasi-inductive window filter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412584C (en) * | 2006-09-22 | 2008-08-20 | 东南大学 | Substrate integrated waveguide quasi-sensitive window filter |
| CN104134835A (en) * | 2014-08-01 | 2014-11-05 | 南京邮电大学 | Novel filter based on substrate integration non-radiative dielectric waveguide |
| CN104157936A (en) * | 2014-07-29 | 2014-11-19 | 西南交通大学 | Electric tunable band-pass filter based on half-module substrate integrated waveguide |
| CN105932379A (en) * | 2016-06-17 | 2016-09-07 | 中国电子科技集团公司第十研究所 | SIW (substrate integrated waveguide) filter with ports on different planes |
| CN106374169A (en) * | 2016-09-21 | 2017-02-01 | 哈尔滨工业大学 | Via-hole-loaded substrate integrated waveguide phase shifter |
| CN111557062A (en) * | 2018-01-15 | 2020-08-18 | Ａｇｃ株式会社 | Filter with a filter element having a plurality of filter elements |
| CN111755785A (en) * | 2020-07-02 | 2020-10-09 | 重庆邮电大学 | Substrate integrated waveguide band-pass filter loaded with novel electromagnetic band gap and coplanar waveguide structure |
-
2006
- 2006-09-22 CN CN 200620077251 patent/CN200956399Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412584C (en) * | 2006-09-22 | 2008-08-20 | 东南大学 | Substrate integrated waveguide quasi-sensitive window filter |
| CN104157936A (en) * | 2014-07-29 | 2014-11-19 | 西南交通大学 | Electric tunable band-pass filter based on half-module substrate integrated waveguide |
| CN104157936B (en) * | 2014-07-29 | 2016-07-20 | 西南交通大学 | Electric tunable band filter based on half module substrate integrated wave guide |
| CN104134835A (en) * | 2014-08-01 | 2014-11-05 | 南京邮电大学 | Novel filter based on substrate integration non-radiative dielectric waveguide |
| CN104134835B (en) * | 2014-08-01 | 2016-03-23 | 南京邮电大学 | A kind of Novel Filter based on the integrated non-radiative dielectric waveguide of substrate |
| CN105932379A (en) * | 2016-06-17 | 2016-09-07 | 中国电子科技集团公司第十研究所 | SIW (substrate integrated waveguide) filter with ports on different planes |
| CN106374169A (en) * | 2016-09-21 | 2017-02-01 | 哈尔滨工业大学 | Via-hole-loaded substrate integrated waveguide phase shifter |
| CN106374169B (en) * | 2016-09-21 | 2019-08-16 | 哈尔滨工业大学 | A kind of substrate integration wave-guide phase shifter of via hole load |
| CN111557062A (en) * | 2018-01-15 | 2020-08-18 | Ａｇｃ株式会社 | Filter with a filter element having a plurality of filter elements |
| CN111557062B (en) * | 2018-01-15 | 2021-08-10 | Ａｇｃ株式会社 | Filter |
| CN111755785A (en) * | 2020-07-02 | 2020-10-09 | 重庆邮电大学 | Substrate integrated waveguide band-pass filter loaded with novel electromagnetic band gap and coplanar waveguide structure |
| CN111755785B (en) * | 2020-07-02 | 2021-09-07 | 重庆邮电大学 | Substrate integrated waveguide band-pass filter loaded with novel electromagnetic band gap and coplanar waveguide structure |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060922 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |