CN202495563U - Microstrip delay line based on defected ground structure - Google Patents
Microstrip delay line based on defected ground structure Download PDFInfo
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- CN202495563U CN202495563U CN 201120550798 CN201120550798U CN202495563U CN 202495563 U CN202495563 U CN 202495563U CN 201120550798 CN201120550798 CN 201120550798 CN 201120550798 U CN201120550798 U CN 201120550798U CN 202495563 U CN202495563 U CN 202495563U
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- delay line
- little band
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- band delay
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Abstract
本实用新型公开了一种基于缺陷地结构的微带延迟线，包括微带延迟线结构，该结构包括介质板，介质板的正面为任意结构的左手延迟线或左右手复合结构延迟线，所述介质板的背面为去掉了部分本体的金属面，去掉的部分与正面延迟线相匹配构成的缺陷地结构等效于并联电感；还包括设置于电路板两侧的电极，以及设置于微带延迟线两侧且与微带延迟线电连接的射频接头，本实用新型充分利用了左手或左右手延迟线的高时延低插损特性，以及缺陷地结构的易实现、易调谐和易加工的特性，相比于常规的微带延迟线，具有尺寸小、插损小、精度高、可靠性高的优点。
The utility model discloses a microstrip delay line based on a defective ground structure, which includes a microstrip delay line structure, the structure includes a dielectric plate, and the front of the dielectric plate is a left-handed delay line of any structure or a delay line with a left-handed composite structure. The back of the dielectric board is the metal surface with part of the body removed, and the removed part matches the front delay line to form a defective ground structure equivalent to a parallel inductance; it also includes the electrodes arranged on both sides of the circuit board, and the electrodes arranged on the microstrip delay line. The radio frequency joints on both sides of the line and electrically connected with the microstrip delay line, the utility model makes full use of the high delay and low insertion loss characteristics of the left-hand or left-hand delay line, and the characteristics of easy realization, easy tuning and easy processing of the defective ground structure , compared with the conventional microstrip delay line, it has the advantages of small size, small insertion loss, high precision and high reliability.
Description
Technical field
The utility model relates to a kind of delay-line structure, relates in particular to a kind of little band delay line based on defect ground structure.
Background technology
Delay line is widely used in phased array radar, satellite communication and the various high precision measurement instrument, and these systems all can change parameters such as phase place, distance through the accurate control to time of delay, thereby realizes systemic-function.Little band delay line has characteristics such as the frequency band coverage is wide, size is little, loss is little, dispersion characteristics are weak, economic and reliable, in the short delay system of high frequency, has incomparable performance and advantage.
Strip line is because its distinctive non-mode dispersion characteristics, is even more important in the system that group delay fluctuation etc. is had relatively high expectations.Yet the mode that realizes strip line at present is owing to reasons such as technologies, fully the non-mode dispersion characteristics on the realization theory.The mode that substitutes its structure has a lot, such as the mode of two little band plates stacks, constitutes strip line with the method for screw or other physical fixation, and the shortcoming that this mode exists has: be prone to slit between the generation plate, cause electric property uncontrollable; Can't add other functional circuits, realize complicated monolithic strip line system etc.The mode of using the no copper base covering of adding identical dielectric constant on the microstrip line is also arranged, and there is above-mentioned shortcoming equally in this mode, and is not easy to processing and practical implementation.
The notion of defect ground structure (DGS) is proposed in 2000 by C.S.Kim etc., and this structure and electro-magnetic bandgap (DCS) similar also is through etched figure is achieved in the ground of microstrip line; Common etched figure has dumbbell shape, spirality and H shape; Compare with EBG, the etching element number equivalent electric circuit few, the unit that DCS adopts is easy to extract, thereby in design; Need not consider array factors such as unit interval, simple.But at present, also do not see the relevant report that this kind defect ground structure is applied to little band delay line field.
Summary of the invention
In view of this, the purpose of the utility model provides a kind of little band delay line based on defect ground structure, and the little band delay line than routine has the advantage that size is little, Insertion Loss is little, precision is high, reliability is high.
The purpose of the utility model realizes through following technical scheme:
Should comprise based on little band delay line of defect ground structure
Little band delay-line structure; Comprise dielectric-slab; The front of said dielectric-slab is left hand delay line or right-hand man's composite construction delay line of arbitrary structures; The back side of said dielectric-slab is the metal covering that has removed the part body, and the part of removing and the front delay line defect ground structure that constitutes that is complementary is equivalent to shunt inductance;
Radio-frequency joint is arranged at little band delay line both sides, and is electrically connected with little band delay-line structure.
Further, also comprise housing, this housing is the cuboid metal shell of indent, is used to seal whole little band delay line, and said radio-frequency joint is installed on the housing;
Further, said little band delay-line structure is fixed and back side good earth through non-metallic screw hole;
Further, all exposed metals all adopt gold-plated processing on said little band delay-line structure;
Further, the thickness thickness of the metal covering of said little band delay-line structure is 0.035-0.08mm;
Further, said little band delay-line structure uses conducting resinl to be fixed on the dielectric-slab.
The beneficial effect of the utility model is:
Traditional little band delay line is because problems such as technology, precision; Cause being difficult to be applicable to the required precision higher system; Such as highly sophisticated device and Large Phased Array Radar etc.; The utility model has made full use of the low Insertion Loss characteristic of high time delay of left hand delay line or right-hand man's composite delay line through adopting the little band delay-line structure based on defective ground and left hand delay line, and the characteristic of the easy realization of defect ground structure, easy tuning and easy processing; Little band delay line than routine has the advantage that size is little, Insertion Loss is little, precision is high, reliability is high.
Other advantages, target and the characteristic of the utility model will be set forth in specification subsequently to a certain extent; And to a certain extent; Based on being conspicuous to those skilled in the art, perhaps can from the practice of the utility model, obtain instruction to investigating of hereinafter.The target of the utility model and other advantages can realize and obtain through following specification.
Description of drawings
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done further to describe in detail below, wherein:
Fig. 1 is defective ground left hand delay-line structure figure;
Fig. 2 is the structural representation of little band delay-line structure;
Fig. 3 be utility model the assembling sketch map.
Embodiment
Below will be with reference to accompanying drawing, the preferred embodiment of the utility model is carried out detailed description.Should be appreciated that preferred embodiment has been merely explanation the utility model, rather than in order to limit the protection range of the utility model.
As shown in the figure, comprise little band delay-line structure 7 and radio-frequency joint based on little band delay line of defect ground structure; Wherein little band delay-line structure 7 comprises dielectric-slab 1; The front of dielectric-slab is left hand delay line or right-hand man's composite construction delay line 2; The back side of dielectric-slab 1 is the metal covering that has removed the part body, and the part of removing and the front delay line defect ground structure 3 that constitutes that is complementary is equivalent to shunt inductance; In the practice process, dielectric-slab can adopt some sheet materials of in the circuit board making field, using always at present.
Radio-frequency joint is arranged at the both sides of little band delay-line structure, and is electrically connected with little band delay-line structure.
For the ease of installing and delay-line structure being played a protective role; The utility model also comprises a housing 5; This housing 5 is the cuboid metal shell of indent, is used to seal the circuit board of whole little band delay-line structure 7, and radio-frequency joint is installed on the radio-frequency joint installation position 6 of housing 5.
In the present embodiment, the inner-cavity structure of shell should closely cooperate with little band delay-line structure and not have obvious slit; The radio-frequency joint that uses is the microstrip line joint, and interior pin is a flat; Electrode is revealed in the blind groove of the little band plate of monolithic multilayer place, and with shell on the interior pin of radio-frequency joint closely cooperate, do not have obvious spacing; The upper surface of the little band plate of multilayer and the spacing of cover inner surface should satisfy the electromagnetic compatibility effect.
As further improvement, little band delay-line structure is fixed and back side good earth through non-metallic screw 4, and all exposed metals all adopt gold-plated processing on little band delay-line structure, and the thickness of the metal covering of little band delay line is 0.035mm.The position of non-metallic screw hole 4 need be satisfied: do not intersect with the intermediate retardation line circuit, and leave a determining deviation, a plurality of screw holes need and circuit board center symmetric arrays.
As further improvement, said little band delay line uses conducting resinl to be fixed on the dielectric-slab 1, and in the present embodiment, dielectric-slab 1 adopts a rogers5880 metal medium plate.Should prevent that conducting resinl is spilled in the defective ground in the position on defective ground when bonding.
Delay line need use Electromagnetic Simulation softwares such as IE3D or ADS to obtain optimal result, and single delay line adopts conventional right-hand man to meet transmission line structure, with the realization of better fit defect ground structure.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of present technique scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (6)
1. based on little band delay line of defect ground structure, it is characterized in that: comprise
Little band delay-line structure; Comprise dielectric-slab; The front of said dielectric-slab is left hand delay line or right-hand man's composite construction delay line, and the back side of said dielectric-slab is the metal covering that has removed the part body, and the part of removing and the front delay line defect ground structure that constitutes that is complementary is equivalent to shunt inductance;
Radio-frequency joint is arranged at little band delay line both sides, and is electrically connected with little band delay-line structure.
2. the little band delay line based on defect ground structure according to claim 1; It is characterized in that: also comprise housing; This housing is used to seal whole little band delay-line structure for the cuboid metal shell of the indent of anti-electromagnetic interference, and said radio-frequency joint is installed on the housing.
3. the little band delay line based on defect ground structure according to claim 2 is characterized in that: said little band delay-line structure is fixed and back side good earth through non-metallic screw hole.
4. according to the arbitrary described little band delay line based on defect ground structure of claim 1 to 3, it is characterized in that: all exposed metals all adopt gold-plated processing on said little band delay-line structure.
5. the little band delay line based on defect ground structure according to claim 1, it is characterized in that: the thickness of the metal covering of said little band delay-line structure is 0.035-0.08mm.
6. the little band delay line based on defect ground structure according to claim 1 is characterized in that: said little band delay-line structure uses conducting resinl to be fixed on the dielectric-slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120550798 CN202495563U (en) | 2011-12-26 | 2011-12-26 | Microstrip delay line based on defected ground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120550798 CN202495563U (en) | 2011-12-26 | 2011-12-26 | Microstrip delay line based on defected ground structure |
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| Publication Number | Publication Date |
|---|---|
| CN202495563U true CN202495563U (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120550798 Expired - Fee Related CN202495563U (en) | 2011-12-26 | 2011-12-26 | Microstrip delay line based on defected ground structure |
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| Country | Link |
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| CN (1) | CN202495563U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496768A (en) * | 2011-12-26 | 2012-06-13 | 中国电子科技集团公司第二十六研究所 | Micro-strip delay line based on defected ground structure |
| CN108695580A (en) * | 2017-04-10 | 2018-10-23 | 南京理工大学 | A kind of octagonal super wide band microstrip filter based on defect ground structure |
-
2011
- 2011-12-26 CN CN 201120550798 patent/CN202495563U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496768A (en) * | 2011-12-26 | 2012-06-13 | 中国电子科技集团公司第二十六研究所 | Micro-strip delay line based on defected ground structure |
| CN108695580A (en) * | 2017-04-10 | 2018-10-23 | 南京理工大学 | A kind of octagonal super wide band microstrip filter based on defect ground structure |
| CN108695580B (en) * | 2017-04-10 | 2019-10-18 | 南京理工大学 | An Octagonal Ultra-Wideband Microstrip Filter Based on Defective Ground Structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20191226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |