CN100412584C - Substrate integrated waveguide quasi-sensitive window filter - Google Patents
Substrate integrated waveguide quasi-sensitive window filter Download PDFInfo
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- CN100412584C CN100412584C CNB2006100963705A CN200610096370A CN100412584C CN 100412584 C CN100412584 C CN 100412584C CN B2006100963705 A CNB2006100963705 A CN B2006100963705A CN 200610096370 A CN200610096370 A CN 200610096370A CN 100412584 C CN100412584 C CN 100412584C
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Abstract
The substrate-integrated waveguide pseudo-inductive window filter for wavelet/millimeter wave circuit comprises: a metal paster (1) on the media substrate (2), which has rectangular middle and funnel-like ends; four couple of through holes (31) in middle rectangle of (1) arranged from the input end (4) to the output end (5) as four rows, wherein, four large holes on the middle rows. Compared with prior art, this invention is convenient to integrate and process with low cost.
Description
Technical field
The present invention 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 wave filter many design problems in the microwave and millimeter wave radio system is as in frequency converter, frequency multiplier and multichannel communication multiple telecommunication.Electromagnetic spectrum is limited, must be distributed by using; And wave 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 wave filter at first is difficult to processing, needs very high machining precision; Secondly production cost is relatively more expensive; The 3rd this wave 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 wave filter, be beneficial to the design of microwave and millimeter wave integrated circuit.
Summary of the invention
Technical matters: the purpose of this invention is to provide a kind of substrate integrated waveguide quasi-sensitive window filter, this wave filter is simpler with respect to original substrate integration wave-guide sensitive window filter structure, that this wave 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 invention 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 end to output terminal 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 intermetallic metal large through-hole.
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, second 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 transport property of rectangular metal waveguide; Then, between the substrate integration wave-guide resonator 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 resonator 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 resonator 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 wave filter device is realized on dielectric substrate fully, utilizes the specific inductive capacity 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 end 4, output terminal 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 second cavity length l2, the 3rd cavity length l3.
Embodiment
Substrate integrated waveguide quasi-sensitive window filter of the present invention 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 end 4 to output terminal 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 intermetallic metal large through-hole.The outside line of intermetallic metal large through-hole is formed a little rectangle, and the outside line of intermetallic metal small through hole is formed a large rectangle.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, second 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 specific inductive capacity 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 wave filter:
Substrate integration wave-guide has and the similar transport property 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 resonator 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 wave 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 end (4) to output terminal (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 intermetallic metal large through-hole.
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 t1=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 (11)=10～11.2mm, second cavity length (12)=11.03～12.23mm, the 3rd cavity length (13)=10～11.2mm.
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| CNB2006100963705A CN100412584C (en) | 2006-09-22 | 2006-09-22 | Substrate integrated waveguide quasi-sensitive window filter |
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| CNB2006100963705A CN100412584C (en) | 2006-09-22 | 2006-09-22 | Substrate integrated waveguide quasi-sensitive window filter |
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| CN1928598A CN1928598A (en) | 2007-03-14 |
| CN100412584C true CN100412584C (en) | 2008-08-20 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103682533A (en) * | 2013-11-20 | 2014-03-26 | 东南大学 | Microwave and millimeter wave filter |
| CN103682538A (en) * | 2013-11-20 | 2014-03-26 | 东南大学 | Modified half-mode substrate integrated waveguide inductive band filter |
| CN103647123B (en) * | 2013-12-18 | 2015-06-17 | 电子科技大学 | Half mode substrate integration waveguide horizontal symmetrical filter |
| CN103682534B (en) * | 2013-12-26 | 2016-05-04 | 航天恒星科技有限公司 | A kind of defect ground loads the Medium Wave Guide wave filter of magnetic coupling structure |
| CN104124497A (en) * | 2014-08-01 | 2014-10-29 | 南京理工大学 | LTCC (low temperature co-fired ceramic) based extremely-high-frequency band high-suppression band-pass filter |
Citations (7)
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|---|---|---|---|---|
| US5982256A (en) * | 1997-04-22 | 1999-11-09 | Kyocera Corporation | Wiring board equipped with a line for transmitting a high frequency signal |
| US20030155865A1 (en) * | 2000-07-07 | 2003-08-21 | Masaharu Ito | Filter |
| US20030156806A1 (en) * | 2000-07-07 | 2003-08-21 | Kenichi Maruhashi | Filter |
| US20040251992A1 (en) * | 2003-06-11 | 2004-12-16 | Kim Bong-Su | Multilayer waveguide filter employing via metals |
| CN1697248A (en) * | 2005-06-01 | 2005-11-16 | 东南大学 | Wave-guide integrated on substrate-electronic band gap band pass filter |
| CN1825677A (en) * | 2006-01-26 | 2006-08-30 | 东南大学 | Microwave millimetre-wave substrate integrated waveguide E face sensing band filter |
| CN200956399Y (en) * | 2006-09-22 | 2007-10-03 | 东南大学 | Substrate integrated waveguide quasi-inductive window filter |
-
2006
- 2006-09-22 CN CNB2006100963705A patent/CN100412584C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5982256A (en) * | 1997-04-22 | 1999-11-09 | Kyocera Corporation | Wiring board equipped with a line for transmitting a high frequency signal |
| US20030155865A1 (en) * | 2000-07-07 | 2003-08-21 | Masaharu Ito | Filter |
| US20030156806A1 (en) * | 2000-07-07 | 2003-08-21 | Kenichi Maruhashi | Filter |
| US20040251992A1 (en) * | 2003-06-11 | 2004-12-16 | Kim Bong-Su | Multilayer waveguide filter employing via metals |
| CN1697248A (en) * | 2005-06-01 | 2005-11-16 | 东南大学 | Wave-guide integrated on substrate-electronic band gap band pass filter |
| CN1825677A (en) * | 2006-01-26 | 2006-08-30 | 东南大学 | Microwave millimetre-wave substrate integrated waveguide E face sensing band filter |
| CN200956399Y (en) * | 2006-09-22 | 2007-10-03 | 东南大学 | Substrate integrated waveguide quasi-inductive window filter |
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