CN104409812B - A kind of flexible coplanar wave guide bandpass filter of fish bone structure bonder - Google Patents
A kind of flexible coplanar wave guide bandpass filter of fish bone structure bonder Download PDFInfo
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- CN104409812B CN104409812B CN201410725328.XA CN201410725328A CN104409812B CN 104409812 B CN104409812 B CN 104409812B CN 201410725328 A CN201410725328 A CN 201410725328A CN 104409812 B CN104409812 B CN 104409812B
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Abstract
The present invention proposes a kind of flexible coplanar wave guide bandpass filter of fish bone structure bonder, and the coplanar waveguide transmission line (1) of the wave filter, co-planar waveguide fish bone structure bonder (4), interdigital structure bonder (2) and quarter-wave resonance device (6) are all in flexible dielectric substrate (3)；The left side of interdigital structure bonder (2) is connected with transmission line (1), and the right is connected with quarter-wave resonance device (6)；The middle bonder (4) for fish bone structure is connected with two a quarter resonators (6) in left and right respectively；The center strip of fish bone structure bonder (4) is connected with two co-planar waveguides ground (5) of coplanar waveguide transmission line (1) respectively；The quarter-wave resonance device (6) on the right is also connected with interdigital structure bonder (2), and the flexible filter has the advantages that size is little, flexible, integrated level is high, dependable performance.Flexible coplanar wave guide bandpass filter will be applied in flexible microwave circuit and flexible microwave system.
Description
Technical field
The present invention is a kind of new flexible coplanar wave guide bandpass filter, belongs to Electromagnetic Field and Microwave Technology field, can
It is applied in microwave circuit and system, Communication Electronic Circuits.
Background technology
With the development of flexible electronic, flexible substrate material is because of its light, thin, soft characteristic and readily satisfies various works
Shape need in journey is obtaining increasing research and is applying, and various new, miniaturizations, wireless application are such as wearable
Radio communication, human body local area network (Body Area Networks) system etc., all depend on the reliability of flexible base board circuit system
Realize.
Flexible electronic device has unique flexibility/ductility, with flexible electronic displays, thin-film solar cell panel is
The flexible device of representative has the performance different from traditional devices such as light, thin, soft flexible, folding, shows in application aspect
Go out very big motility, flexible electronic device is traditional using flexible base board replacement with the most basic difference of traditional devices
Rigid substrates, have broken the design concept of conventional rigid plate circuit, are that raising ductility and pliability create condition, therefore
Flexible base board is the core for realizing flexible, folded device.For radio system, using flexible base board as microwave
The backing material of device and circuit, realizes low cost, the flexible microwave circuit of shape-plastic, will meet RFID system, portable
The application demand of the different fields such as Wi-Fi equipment, medical monitoring, remote sensing radar.It is with the development of information technology, miniaturization, low
Cost, wearable system will become after smart mobile phone, one class product of panel computer, by a new generation for starting with oneself
Realization to wearable system is provided strong support by communications electronics product, flexible microwave circuit.For radio system,
Microwave filter is the important component part for constituting radio system, and coplanar waveguide filter has easy processing, small volume, Yi Ji
Into the advantages of, therefore the design of flexible coplanar wave guide bandpass filter is to realize one of important step of flexible radio frequency system.
The content of the invention
Technical problem：The purpose of the present invention is to propose to a kind of flexible coplanar wave guide bandpass filter, by adopting narrow slot
The bonder of interdigital structure, the bonder of fish bone structure and quarter-wave co-planar waveguide resonator, select suitable flexible
Dielectric material, constitutes flexible coplanar wave guide bandpass filter, so as to realize the flexible co-planar waveguide band needed for flexible radio frequency system
Bandpass filter.
Technical scheme：A kind of flexible coplanar wave guide bandpass filter of fish bone structure bonder of the present invention includes coplanar ripple
Lead transmission line, flexible dielectric substrate, co-planar waveguide fish bone structure bonder, interdigital structure bonder and quarter-wave coplanar
Waveguide resonator；Coplanar waveguide transmission line, co-planar waveguide fish bone structure bonder, interdigital structure bonder and quarter-wave
Resonator is all in flexible dielectric substrate；The left side of interdigital structure bonder is connected with transmission line, the right and quarter-wave
Resonator is connected；The middle bonder for fish bone structure is connected with two a quarter resonators in left and right respectively；Fish bone structure
The center strip of bonder is connected with two co-planar waveguides of coplanar waveguide transmission line respectively；The quarter-wave on the right is humorous
The device that shakes also is connected with interdigital structure bonder.A symmetrical flexible coplanar wave guide bandpass filter is constituted so.
Described co-planar waveguide fish bone structure bonder adopts herring-bone form structure, the structure centre band and a plurality of detail structure
Into.
Described interdigital structure bonder is narrow slot unsymmetric structure.
The flexible dielectric substrate is liquid crystal polymer (LCP) material.
The bonder of the interdigital structure is narrow slit gap structure, can so effectively obtain larger coupling value can
Increase the bandwidth that coupler structure is suitable for so as to which coupling value keeps constant in the range of the broad frequency band, and in bending
In the case of be maintained to the stability of coupling value.
Described fish bone structure bonder is made up of center strip and perpendicular a plurality of detail, using a plurality of detail with
Quarter-wave resonance device be connected, the structure can according to coupling value need detail number is adjusted, a plurality of detail
Wave filter electromagnetic wave in bending fold is coupled in quarter-wave resonance device, so as to reduce the sky of electromagnetic wave
Between radiation loss；The bonder of fish bone structure its coupling value in the basic bending fold of medium has good stability.
Beneficial effect：The flexible coplanar wave guide bandpass filter of the present invention has the advantages that：
(1) can make and be curved folding, its property retention is constant；
(2) microwave filter of small volume can be produced, so as to improve the integrated level of radio-frequency devices and system；(3) energy
It is enough to implement on different flexible dielectric materials, produce flexible coplanar wave guide bandpass filter, Pasting or be attached to curved
The surface of bent structure becomes coplanar wave guide bandpass filter that can be conformal.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Have in figure：Coplanar waveguide transmission line 1, interdigital structure bonder 2, flexible dielectric substrate 3, co-planar waveguide fish bone structure
Bonder 4, co-planar waveguide ground 5, quarter-wave resonance device 6, center strip 7, detail 8.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
The technical solution adopted in the present invention is：
A kind of flexible coplanar wave guide bandpass filter of the present invention is by coplanar waveguide transmission line 1, flexible dielectric substrate 3, altogether
Face waveguide fish bone structure bonder 4, interdigital structure bonder 2 and quarter-wave co-planar waveguide resonator 6 are constituted；Coplanar ripple
Transmission line 1, co-planar waveguide fish bone structure bonder 4, interdigital structure bonder 2 and quarter-wave resonance device 6 are led all soft
On property medium substrate 3；The left side of interdigital structure bonder 2 is connected with transmission line 1, the right and 6 phase of quarter-wave resonance device
Even；The middle bonder 4 for fish bone structure is connected with two a quarter resonators 6 in left and right respectively；Fish bone structure bonder 4
Center strip be connected with two co-planar waveguides ground 5 of coplanar waveguide transmission line 1 respectively；The quarter-wave resonance device on the right
6 are also connected with interdigital structure bonder 2, so constitute a symmetrical flexible coplanar wave guide bandpass filter.
In structure, flexible dielectric substrate 1 can adopt liquid crystal polymer (LCP) material, the bonder 2 of interdigital structure
Gap is narrower, can so effectively obtain larger coupling value and can increase the bandwidth that coupler structure is suitable for, make
Its coupling value in the range of the broad frequency band keeps constant, and stablizing for coupling value is maintained in the case of bending
Property.Co-planar waveguide fish bone structure bonder 4 is connected with quarter-wave resonance device using a plurality of detail, and the structure can basis
The needing of coupling value is adjusted to detail number, can select 3,5 etc., and a plurality of detail causes wave filter in bending fold
When electromagnetic wave can be coupled in quarter-wave resonance device 6, so as to reduce electromagnetic wave space radiation be lost；Fish bone structure
Bonder 4 in 3 bending fold of medium substrate its coupling value there is good stability.
In manufacture, the manufacturing process of the fish bone structure bonder flexibility coplanar waveguide filter can adopt microelectronics work
Skill, laser technology or printed circuit technology.The wave filter is by coplanar waveguide transmission line 1, co-planar waveguide fish bone structure bonder
4th, interdigital structure bonder 2 and quarter-wave co-planar waveguide resonator 6 are constituted, all by the conductor material that electric conductivity is good
Constitute, printing or evaporation are in flexible dielectric substrate 3.Flexible dielectric substrate wants the alap dielectric material of service wear.
In accordance with the above, it is possible to achieve the present invention.
Claims (2)
1. a kind of flexible coplanar wave guide bandpass filter of fish bone structure bonder, it is characterised in that the band filter is included altogether
Coplanar waveguide transmission line (1), flexible dielectric substrate (3), co-planar waveguide fish bone structure bonder (4), interdigital structure bonder (2) and
Quarter-wave co-planar waveguide resonator (6)；Coplanar waveguide transmission line (1), co-planar waveguide fish bone structure bonder (4), fork
Refer to structure Coupling device (2) and quarter-wave resonance device (6) all in flexible dielectric substrate (3)；Interdigital structure bonder (2)
The left side be connected with transmission line (1), the right is connected with quarter-wave resonance device (6)；The middle bonder for fish bone structure
(4) it is connected with two a quarter resonators (6) in left and right respectively；The center strip of fish bone structure bonder (4) is respectively together
Two co-planar waveguides ground (5) of coplanar waveguide transmission line (1) are connected；The right quarter-wave resonance device (6) also with interdigital knot
Structure bonder (2) is connected, and interdigital structure bonder (2) is narrow slot unsymmetric structure, and so composition one is symmetrical soft
Property coplanar wave guide bandpass filter.
2. the flexible coplanar wave guide bandpass filter of a kind of fish bone structure bonder according to claim 1, its feature exist
In described co-planar waveguide fish bone structure bonder (4) using herring-bone form structure, the structure centre band (7) and a plurality of detail
(8) constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410725328.XA CN104409812B (en) | 2014-12-03 | 2014-12-03 | A kind of flexible coplanar wave guide bandpass filter of fish bone structure bonder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410725328.XA CN104409812B (en) | 2014-12-03 | 2014-12-03 | A kind of flexible coplanar wave guide bandpass filter of fish bone structure bonder |
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| Publication Number | Publication Date |
|---|---|
| CN104409812A CN104409812A (en) | 2015-03-11 |
| CN104409812B true CN104409812B (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410725328.XA Active CN104409812B (en) | 2014-12-03 | 2014-12-03 | A kind of flexible coplanar wave guide bandpass filter of fish bone structure bonder |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9953629B2 (en) * | 2016-02-11 | 2018-04-24 | Bose Corporation | Flexible waveguide band |
| CN108539357A (en) * | 2018-04-26 | 2018-09-14 | 清华大学 | A kind of micro-strip resonantor and microstrip filter based on buried class finger-cross structure |
| CN112002969A (en) * | 2020-08-31 | 2020-11-27 | 北京邮电大学 | Ultrathin flexible bow-tie interdigital artificial surface plasmon polariton coplanar band-pass filter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361111A (en) * | 2011-10-08 | 2012-02-22 | 上海大学 | Ultra-wideband (UWB) filter with band-notched characteristics |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8766747B2 (en) * | 2010-04-01 | 2014-07-01 | International Business Machines Corporation | Coplanar waveguide structures with alternating wide and narrow portions, method of manufacture and design structure |
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2014
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361111A (en) * | 2011-10-08 | 2012-02-22 | 上海大学 | Ultra-wideband (UWB) filter with band-notched characteristics |
Non-Patent Citations (2)
| Title |
|---|
| A Novel Flexible with Enhanced Coupling Effect using Mixed Coupling;Jin-Sup Kim;《Proceeding of Asia-Pacific Microwave Conference》;20101110;第1288-1293页 * |
| Characterization of Semilumped CPW Elements for Millimeter-Wave Filter Design;Farshid Aryanfar;《IEEE Transactions on Microwave Theory and Techniques》;20050418;第1288-1293页 * |
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| CN104409812A (en) | 2015-03-11 |
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Effective date of registration: 20181220 Address after: 226000 Room 8319, Building 11, Happy New Town, Gangzha District, Nantong City, Jiangsu Province Patentee after: Nanjing University of Posts and Telecommunications Nantong Institute Limited Address before: 210003 new model road, Nanjing, Nanjing, Jiangsu Patentee before: Nanjing Post & Telecommunication Univ. |