CN200950463Y - Substrate integrated waveguide quasi-inductive through hole filter - Google Patents
Substrate integrated waveguide quasi-inductive through hole filter Download PDFInfo
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- CN200950463Y CN200950463Y CN 200620077248 CN200620077248U CN200950463Y CN 200950463 Y CN200950463 Y CN 200950463Y CN 200620077248 CN200620077248 CN 200620077248 CN 200620077248 U CN200620077248 U CN 200620077248U CN 200950463 Y CN200950463 Y CN 200950463Y
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- accurate perceptual
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Abstract
A substrate integrated wave guide pre-perception through hole filter is a design applicable for microwave millimeter wave circuits and for microwave millimeter integrated circuits. The filter comprises mental patches (1), a media substrate (2) and metal through holes (3). The metal patches (1) are provided on the media substrate (2). The middle of the metal patches (1) which are the main body of the filter is rectangular, and both ends of the metal patches are symmetrical funnel-shaped ports. Two lines of metal through holes are provided on edges of both sides of the rectangular middle of each of the metal patches (1). A ring is provided between the two lines of metal through holes, and consists of a plurality of metal through holes, which are a first pre-perception through hole, a second pre-perception through hole, a third pre-perception through hole, a fourth pre-perception through hole, a fifth pre-perception through hole and a sixth pre-perception through hole; the holes are arranged along the direction of an input end (4) and an output end (5). The filter has the characteristics of easiness to be integrated, low processing cost and 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 base-plate integrative waveguide pseudo inductive through-hole filter of the design of microwave and millimeter wave integrated circuit.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; The 4th substrate integration wave-guide perception through-hole filter performance is good, volume is little, in light weight, high Q value, low-loss, low cost, be easy to integrated, but because the diameter of perceptual through hole is subjected to the restriction of production technology, needing during design to optimize has repeatedly increased design difficulty greatly.
Summary of the invention
Technical problem: the purpose of this utility model provides a kind of base-plate integrative waveguide pseudo inductive through-hole filter, solve the integration problem of microwave and millimeter wave filter, and with respect to the design of being more convenient for of original substrate integration wave-guide perception through-hole filter, that this filter utensil is easy to is integrated, processing cost is cheaper, characteristic of simple structure, be 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: base-plate integrative waveguide pseudo inductive through-hole filter metal patch of the present utility model, 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, be respectively equipped with two row's metal throuth holes along the sideline in the rectangle both sides at metal patch middle part, also be provided with annulus that a row is made up of many metal throuth holes i.e. first accurate perceptual through hole, the second accurate perceptual through hole, the 3rd accurate perceptual through hole, the 4th accurate perceptual through hole, the 5th accurate perceptual through hole, the 6th accurate perceptual through hole between metal throuth hole this two row, along the direction arrangement of input, output.
Aperture D=0.2～the 0.8mm of metal throuth hole, pitch-row S=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, first accurate perceptual through-hole diameter D1=1～2mm, second accurate perceptual through-hole diameter D2=0.7～0.9mm, the 3rd accurate perceptual through-hole diameter D3=2.6～2.8mm, the 4th accurate perceptual through-hole diameter D4=2.8～3mm, the 5th accurate perceptual through-hole diameter D5=2.6～2.8mm, the 6th accurate perceptual through-hole diameter D6=0.7～0.9mm, first cavity length L1=12～12.4mm, second cavity length L2=13.8～14.4.mm, the 3rd cavity length L3=14.07～14.67mm, the 4th cavity length L4=13.8～14.4mm, the 5th cavity length L5=12～12.4mm, substrate integration wave-guide width Ws iw=15.4～16.4mm.
Base-plate integrative waveguide pseudo inductive through-hole 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, constitute by load a plurality of perceptual through holes in substrate integration wave-guide, each perceptual through hole is made of a circle metal throuth hole, and the spacing between the perceptual through hole is about 1/2nd guide wavelengths, thereby has formed resonant cavity.Control the power that is coupled between the resonant cavity by the size that changes perceptual through hole, make total play the effect of filter.In the structure of this base-plate integrative waveguide pseudo inductive through-hole 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 base-plate integrative waveguide pseudo inductive through-hole filter integrated in the microwave and millimeter wave circuit design;
2 :) filter function of accurate perceptual through-hole filter mainly is to realize by intercoupling of the perceptual through-hole structure control of standard series connection substrate integration wave-guide resonant cavity, so the design of the accurate perceptual through-hole structure in the substrate integration wave-guide is played important effect to whole base-plate integrative waveguide pseudo inductive through-hole filter;
Beneficial effect: base-plate integrative waveguide pseudo inductive through-hole filter has the following advantages:
1 :) this base-plate integrative waveguide pseudo inductive through-hole 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 :) can have preferable performance.Its characteristic and traditional metal waveguide perception through-hole filter device are similar, thereby have preferable performance;
3 :) this base-plate integrative waveguide pseudo inductive through-hole 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 :) overcome process technology limit.Because realize accurate perceptual through-hole structure by a circle metal throuth hole, so the base-plate integrative waveguide pseudo inductive through-hole size can not be subjected to process technology limit.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present utility model.
Fig. 2 is measured result figure of the present utility model.
Have among the above figure: metal patch 1, dielectric substrate 2, metal throuth hole 3, input 4, output 5, micro belt line width w, impedance transformer width tw, impedance transformer length tl, metal throuth hole 3 aperture D, between the metal throuth hole 3 apart from S, the first accurate perceptual through-hole diameter D1, the second accurate perceptual through-hole diameter D2, the 3rd accurate perceptual through-hole diameter D3, the 4th accurate perceptual through-hole diameter D4, the 5th accurate perceptual through-hole diameter D5, the 6th accurate perceptual through-hole diameter D6, the first cavity length L1, the second cavity length L2, the 3rd cavity length L3, the 4th cavity length L4, the 5th cavity length L5, substrate integration wave-guide width Ws iw.
Embodiment
Base-plate integrative waveguide pseudo inductive through-hole filter of the present utility model 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, be respectively equipped with two row's metal throuth holes along the sideline in the rectangle both sides at metal patch 1 middle part, also be provided with annulus that a row is made up of many metal throuth holes i.e. first accurate perceptual through hole, the second accurate perceptual through hole, the 3rd accurate perceptual through hole, the 4th accurate perceptual through hole, the 5th accurate perceptual through hole, the 6th accurate perceptual through hole between metal throuth hole this two row, along the direction arrangement of input 4, output 5.Aperture D=0.2～the 0.8mm of metal throuth hole 3, pitch-row S=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, first accurate perceptual through-hole diameter D1=1～2mm, second accurate perceptual through-hole diameter D2=0.7～0.9mm, the 3rd accurate perceptual through-hole diameter D3=2.6～2.8mm, the 4th accurate perceptual through-hole diameter D4=2.8～3mm, the 5th accurate perceptual through-hole diameter D5=2.6～2.8mm, the 6th accurate perceptual through-hole diameter D6=0.7～0.9mm, first cavity length L1=12～12.4mm, second cavity length L2=13.8～14.4.mm, the 3rd cavity length L3=14.07～14.67mm, the 4th cavity length L4=13.8～14.4mm, the 5th cavity length L5=12～12.4mm, substrate integration wave-guide width Ws iw=15.4～16.4mm.
We have realized the base-plate integrative waveguide pseudo inductive through-hole filter of above introduction at X-band, the diameter that is used for constituting the integrated waveguide metal through hole of medium is 0.4m, spacing between the through hole is 0.8mm, the electric relatively dielectric constant of dielectric substrate is 2.2, as shown in drawings, other parameters are as shown in the table:
| W(mm) | 1.5 | D6(mm) | 0.8 |
| tw(mm) | 6.6 | L1(mm) | 12.2 |
| tl(mm) | 14 | L2(mm) | 14.1 |
| Wsiw(mm) | 15.9 | L3(mm) | 14.37 |
| D1(mm) | 0.8 | L4(mm) | 14.1 |
| D2(mm) | 2.7 | L5(mm) | 12.2 |
| D3(mm) | 2.9 | D(mm) | 0.4 |
| D4(mm) | 2.9 | S(mm) | 0.8 |
| D5(mm) | 2.6 |
Substrate integration wave-guide has and the similar transmission characteristic of rectangular metal waveguide.We have made full use of this characteristic by designed base-plate integrative waveguide pseudo inductive through-hole filter, and with one the circle metal throuth hole form accurate perceptual through-hole structure, with the coupling between the control substrate integration wave-guide resonant cavity, thereby realized the performance of base-plate integrative waveguide pseudo inductive through-hole filter.
1 :) a kind of base-plate integrative waveguide pseudo inductive through-hole 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 perception through-hole filter, overcome the restriction of manufacture craft to perceptual through-hole diameter;
2 :) whole base-plate integrative waveguide pseudo inductive through-hole filter realized by the metal throuth hole array on the dielectric substrate fully.
Claims (3)
1. a base-plate integrative waveguide pseudo inductive through-hole 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, be respectively equipped with two row's metal throuth holes along the sideline in the rectangle both sides at metal patch (1) middle part, also be provided with annulus that a row is made up of many metal throuth holes i.e. first accurate perceptual through hole, the second accurate perceptual through hole, the 3rd accurate perceptual through hole, the 4th accurate perceptual through hole, the 5th accurate perceptual through hole, the 6th accurate perceptual through hole between metal throuth hole this two row, along the direction arrangement of input (4), output (5).
2. base-plate integrative waveguide pseudo inductive through-hole filter according to claim 1 is characterized in that the aperture D=0.2～0.8mm of metal throuth hole (3), pitch-row S=0.8～1.2mm.
3. base-plate integrative waveguide pseudo inductive through-hole 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, first accurate perceptual through-hole diameter D1=1～2mm, second accurate perceptual through-hole diameter D2=0.7～0.9mm, the 3rd accurate perceptual through-hole diameter D3=2.6～2.8mm, the 4th accurate perceptual through-hole diameter D4=2.8～3mm, the 5th accurate perceptual through-hole diameter D5=2.6～2.8mm, the 6th accurate perceptual through-hole diameter D6=0.7～0.9mm, first cavity length L1=12～12.4mm, second cavity length L2=13.8～14.4.mm, the 3rd cavity length L3=14.07～14.67mm, the 4th cavity length L4=13.8～14.4mm, the 5th cavity length L5=12～12.4mm, substrate integration wave-guide width Ws iw=15.4～16.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620077248 CN200950463Y (en) | 2006-09-22 | 2006-09-22 | Substrate integrated waveguide quasi-inductive through hole filter |
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| CN 200620077248 CN200950463Y (en) | 2006-09-22 | 2006-09-22 | Substrate integrated waveguide quasi-inductive through hole filter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100444461C (en) * | 2006-09-22 | 2008-12-17 | 东南大学 | Base-plate integrative waveguide pseudo inductive through-hole filter |
| US8130063B2 (en) | 2008-03-27 | 2012-03-06 | Her Majesty the Queen in right of Canada, as represented by The Secretary of State for Industry, Through the Communications Research Centre Canada | Waveguide filter |
| CN111934073A (en) * | 2020-09-27 | 2020-11-13 | 成都频岢微电子有限公司 | Miniaturized wide stop band filter based on micro-strip and substrate integrated waveguide mixing |
| RU2743070C1 (en) * | 2020-04-24 | 2021-02-15 | Общество с ограниченной ответственностью "Миг Трейдинг" | Waveguide with coplanar waveguide transmission line |
-
2006
- 2006-09-22 CN CN 200620077248 patent/CN200950463Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100444461C (en) * | 2006-09-22 | 2008-12-17 | 东南大学 | Base-plate integrative waveguide pseudo inductive through-hole filter |
| US8130063B2 (en) | 2008-03-27 | 2012-03-06 | Her Majesty the Queen in right of Canada, as represented by The Secretary of State for Industry, Through the Communications Research Centre Canada | Waveguide filter |
| RU2743070C1 (en) * | 2020-04-24 | 2021-02-15 | Общество с ограниченной ответственностью "Миг Трейдинг" | Waveguide with coplanar waveguide transmission line |
| CN111934073A (en) * | 2020-09-27 | 2020-11-13 | 成都频岢微电子有限公司 | Miniaturized wide stop band filter based on micro-strip and substrate integrated waveguide mixing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060922 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |