CN104681973B - A kind of micro-strip paster antenna based on photon crystal structure - Google Patents
A kind of micro-strip paster antenna based on photon crystal structure Download PDFInfo
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- CN104681973B CN104681973B CN201510103419.4A CN201510103419A CN104681973B CN 104681973 B CN104681973 B CN 104681973B CN 201510103419 A CN201510103419 A CN 201510103419A CN 104681973 B CN104681973 B CN 104681973B
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Abstract
The invention discloses a kind of micro-strip paster antenna based on photon crystal structure, including medium substrate, the back side of medium substrate is provided with metal ground plane, the positive center of medium substrate is provided with radiation minor matters, radiate four helical structures that minor matters are specular, and its surrounding is surrounded with photonic crystal band layer, photonic crystal band layer is made up of the metal patch of some periodic arrangements, the center of metal patch is connected by conductive via with metal ground plane, metal ground plane is connected by feed port with radiation minor matters, the end of feed port carries out signal transmission by sub-miniature A connector with extraneous.The present invention introduces photonic crystal band layer around radiation minor matters, efficiently solves the shortcomings that microstrip antenna gain is low and broadband is narrow, and both are spaced apart, reduce mutual mutual coupling, effectively ensure that the working characteristics of antenna；In addition, the structure of radiation minor matters can be effectively increased current path, the miniaturization of antenna is realized.
Description
Technical field
The invention belongs to microstrip antenna technical field, and in particular to a kind of microband paste day based on photon crystal structure
Line.
Background technology
This concept of photonic crystal is suggested the eighties in last century, with forbidden band characteristic, i.e., its maximum characteristic is exactly
In the range of forbidden band, inhibited to the surface wave propagated on its surface, it does not support the surface of a certain frequency range in other words
The propagation of ripple.Microstrip antenna because its have small volume, in light weight, low section, low cost, be adapted to circuit integrate etc. it is many excellent
Point, is widely used in wireless communication system, and it is played in various fields such as mobile communication, satellite communication and Aero-Space
Important function.But some shortcomings of microstrip antenna in itself also limit the performance of its bigger performance simultaneously, due to microstrip antenna
Belong to resonant aerial, its working band relative narrower；The presence of the surface wave and dielectric loss that have encouraged in addition causes antenna
Most energy all consumes so that the gain of microstrip antenna is relatively low, and radiation efficiency is not high.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of micro-strip paster antenna based on photon crystal structure, the day
Line efficiency solves the shortcomings that microstrip antenna gain is low and broadband is narrow, and has good circuit and radiance, is advantageously implemented
The miniaturization of antenna.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of micro-strip paster antenna based on photon crystal structure, including medium substrate, the back side of medium substrate are provided with gold
Belong to ground plane, medium substrate it is positive center be provided with radiation minor matters, radiation minor matters be specular four helical structures, and its four
It is surrounded with photonic crystal band layer week, photonic crystal band layer is made up of the metal patch of some periodic arrangements, metal patch
Center is connected by conductive via with metal ground plane, and metal ground plane is connected by feed port with radiation minor matters, feed end
The end of mouth passes through sub-miniature A connector and carries out signal transmission with extraneous.
The metal patch includes central part, and the center of central part turns on conductive via, and the edge of central part is provided with more
The bar spaced metal micro-strip line of L-shaped first and the second metal micro-strip line clockwise.
The photonic crystal band layer flushes setting with radiation minor matters.
The medium substrate is FR4 materials, size 60mm*60mm*2mm；The size for radiating minor matters is 26.6mm*
26.6mm；The size of metal patch is 7 mm*7mm, wherein：The width of first metal micro-strip line and the second metal micro-strip line is
0.7mm, the length of the first metal micro-strip line is 3.6mm, between the first metal micro-strip line and the second metal micro-strip line length portion away from
From being 0.7mm for the distance between 0.3mm, short portion.
After the photonic crystal band layer is molded with radiation minor matters using bite, it is total to conductive via and feed port
Handled with the heavy tin in surface is done.
Photosensitive green oil film is coated with outside the metal ground plane.
Compared with prior art, it is an advantage of the invention that：The present invention introduces photonic crystal band layer around radiation minor matters,
The shortcomings that microstrip antenna gain is low and broadband is narrow is efficiently solved, and both are spaced apart, reduce mutual mutual coupling,
It effectively ensure that the working characteristics of antenna；In addition, the structure of radiation minor matters can be effectively increased current path, antenna is advantageously implemented
Miniaturization.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the cross section structure diagram of the present invention；
Fig. 3 is the structural representation of metal patch in the present invention；
Fig. 4 is the structural representation that antenna is contrasted in the present invention；
Fig. 5 is the present invention and the return loss comparison diagram of contrast antenna；
Fig. 6 is radiated far field area 3D comparison diagram of the present invention with contrasting antenna, wherein：Fig. 6-1 is the radiation for contrasting antenna
Far-field region 3D schemes；Fig. 6-2 is the radiated far field area 3D figures of the present invention.
Embodiment：
As shown in Figure 1 to Figure 3, a kind of micro-strip paster antenna based on photon crystal structure, including medium substrate 1, medium
The back side of substrate 1 is provided with metal ground plane 4, and the positive center of medium substrate 1 is provided with radiation minor matters 2, and radiation minor matters 2 are mirror image pair
Four helical structures claimed, and its surrounding is surrounded with photonic crystal band layer, photonic crystal band layer is flushed with radiation minor matters 2 and set
Put, photonic crystal band layer is by 2 rows（Row）The metal patch 5 of totally 48 periodic arrangements forms, and metal patch 5 includes central part,
The center of central part is connected by conductive via 6 with metal ground plane 4, and the edge of central part is spaced clockwise provided with a plurality of
L-shaped the first metal micro-strip line 51 and the second metal micro-strip line 52, metal ground plane 4 by feed port 3 and radiation minor matters 2 connect
Connect, the end of feed port 3 carries out signal transmission by sub-miniature A connector 31 with extraneous.
In the present invention, medium substrate 1 is FR4 materials, size 60mm*60mm*2mm；Radiation minor matters size be
26.6mm*26.6mm；The size of metal patch 5 is 7 mm*7mm, wherein：First metal micro-strip line 51 and the second metal micro-strip line
52 width w is 0.7mm, and the length lx of the first metal micro-strip line 51 is 3.6mm, the first metal micro-strip line 51 and the second metal
The distance between 52 long portion of microstrip line lw is 0.3mm, the distance between short portion sw is 0.7mm.
The present invention when making, each metal patch 5 of photonic crystal band layer and radiation minor matters 2 using bite into
Type, radiation minor matters 2 are in four helical structures of specular, compared with existing same specification microstrip antenna, size reduction
13.5%；The center of each metal patch 5 and the distributing point of radiation minor matters 2（Away from the radiation center 5.4mm of minor matters 2）Place is using gold
The mode of categoryization via forms conductive via 6 and feed port 3, and to metal patch 5, radiation minor matters 2, conductive via 6 and feedback
Do heavy tin processing in the surface of electric port 3；Photosensitive green oil film is coated with outside metal ground plane 4, to reach the purpose of anti-welding insulation.
For the circuit parameter performance and radiation parameter performance of the further prominent present invention, contrast antenna is designed and produced, such as
Shown in Fig. 4, the incomplete structure of the contrast antenna each metal patch 5 of photonic crystal band layer and corresponding with metal patch 5
Conductive via 6, remaining is consistent with the present invention, but for impedance matching, the distributing point of minor matters 2 is radiated in this contrast antenna
Position be away from its center 5.2mm at, the performance of the contrast antenna and existing same specification microstrip antenna is essentially identical：
As shown in figure 5, horizontal dotted line represents return loss as -10dB, imaginary curve represents the return loss of inventive antenna
Change, solid-line curve represents contrast antenna return loss change, it is seen that the centre frequency of contrast antenna is 4.5GHz,
Frequency bandwidth is 3.4%, and the centre frequency of inventive antenna is slightly displaced from, and at 4.56GHz, frequency bandwidth is then changed into
4.5%, extend 1.1%；As in Figure 6-1, it is 4.21dB to contrast antenna maximum gain at the GHz of working frequency 4.5；And
The antenna of the present invention, as in fig. 6-2, maximum gain is 5.55dB at 4.5 GHz, relatively contrasts antenna and adds 1.34 dB.
From the above, it can be seen that the antenna of the present invention effectively improves gain and the bandwidth performance of existing microstrip antenna,
Reduce the size of antenna to a certain extent simultaneously, be advantageously implemented the miniaturization of antenna.
Claims (5)
- A kind of 1. micro-strip paster antenna based on photon crystal structure, it is characterised in that：Including medium substrate, the medium substrate The back side be provided with metal ground plane, the positive center of medium substrate is provided with radiation minor matters, and the radiation minor matters are mirror image pair Four helical structures claimed, and its surrounding is surrounded with photonic crystal band layer, the photonic crystal band layer is by some periodic arrangements Metal patch composition, the metal patch center be connected by conductive via with metal ground plane, the metal ground plane It is connected by feed port with radiation minor matters, the end of the feed port carries out signal transmission by sub-miniature A connector with extraneous；Institute Stating metal patch includes central part, and the center of the central part turns on conductive via, and the edge of the central part is provided with a plurality of The spaced metal micro-strip line of L-shaped first and the second metal micro-strip line clockwise.
- A kind of 2. micro-strip paster antenna based on photon crystal structure according to claim 1, it is characterised in that：The light Sub- crystal gap layer flushes setting with radiation minor matters.
- A kind of 3. micro-strip paster antenna based on photon crystal structure according to claim 1, it is characterised in that：Given an account of Matter substrate is FR4 materials, size 60mm*60mm*2mm；The size of the radiation minor matters is 26.6mm*26.6mm；The gold The size for belonging to paster is 7 mm*7mm, wherein：The width of first metal micro-strip line and the second metal micro-strip line is 0.7mm, the The length of one metal micro-strip line is 3.6mm, and the distance between the first metal micro-strip line and second metal micro-strip line length portion are The distance between 0.3mm, short portion are 0.7mm.
- A kind of 4. micro-strip paster antenna based on photon crystal structure according to claim 1, it is characterised in that：The light After sub- crystal gap layer is molded with radiation minor matters using bite, the heavy Xi Chu in surface is jointly with conductive via and feed port Reason.
- A kind of 5. micro-strip paster antenna based on photon crystal structure according to claim 1, it is characterised in that：The gold Photosensitive green oil film is coated with outside category ground plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510103419.4A CN104681973B (en) | 2015-03-10 | 2015-03-10 | A kind of micro-strip paster antenna based on photon crystal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510103419.4A CN104681973B (en) | 2015-03-10 | 2015-03-10 | A kind of micro-strip paster antenna based on photon crystal structure |
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| CN104681973A CN104681973A (en) | 2015-06-03 |
| CN104681973B true CN104681973B (en) | 2017-12-22 |
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| CN108281797B (en) * | 2017-12-08 | 2019-11-15 | 西安电子科技大学 | High angle stability frequency-selective surfaces based on 2.5D braiding structure |
| CN108258414B (en) | 2017-12-21 | 2021-06-15 | 惠州Tcl移动通信有限公司 | Printed circuit board and terminal |
| CN108417979B (en) * | 2018-03-06 | 2023-06-16 | 厦门大学嘉庚学院 | Strong anti-interference composite ultra-wideband antenna |
| CN108832275B (en) * | 2018-07-24 | 2023-08-01 | 厦门大学嘉庚学院 | Mobile digital television induction array four-spiral antenna |
| CN109755754A (en) * | 2019-02-12 | 2019-05-14 | 西交利物浦大学 | It is a kind of applied to the fabric Meta Materials reflecting surface used close to human body antenna |
| CN109742539B (en) * | 2019-02-26 | 2021-03-23 | 深圳市卓睿通信技术有限公司 | Patch antenna with broadband and filtering characteristics |
| CN110233340B (en) * | 2019-06-14 | 2021-01-15 | 大连海事大学 | Double-frequency dual-polarization 5G antenna loaded with square slotted patch |
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| KR20100041252A (en) * | 2008-10-13 | 2010-04-22 | 삼성전기주식회사 | Electro-magnetic bandgap structure |
| CN202127094U (en) * | 2011-05-31 | 2012-01-25 | 深圳光启高等理工研究院 | Antenna and MIMO (Multiple Input Multiple Output) antenna comprising same |
| CN102769183A (en) * | 2012-07-13 | 2012-11-07 | 厦门大学 | Quadruple spiral distribution loading oscillator microstrip antenna applied to Beidou system |
| CN104157982A (en) * | 2014-07-07 | 2014-11-19 | 华东交通大学 | Dual-polarized MIMO antenna based on EBG structure |
| CN204706629U (en) * | 2015-03-10 | 2015-10-14 | 中天宽带技术有限公司 | A kind of micro-strip paster antenna based on photon crystal structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009033324A (en) * | 2007-07-25 | 2009-02-12 | Nippon Antenna Co Ltd | Antenna |
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- 2015-03-10 CN CN201510103419.4A patent/CN104681973B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100041252A (en) * | 2008-10-13 | 2010-04-22 | 삼성전기주식회사 | Electro-magnetic bandgap structure |
| CN202127094U (en) * | 2011-05-31 | 2012-01-25 | 深圳光启高等理工研究院 | Antenna and MIMO (Multiple Input Multiple Output) antenna comprising same |
| CN102769183A (en) * | 2012-07-13 | 2012-11-07 | 厦门大学 | Quadruple spiral distribution loading oscillator microstrip antenna applied to Beidou system |
| CN104157982A (en) * | 2014-07-07 | 2014-11-19 | 华东交通大学 | Dual-polarized MIMO antenna based on EBG structure |
| CN204706629U (en) * | 2015-03-10 | 2015-10-14 | 中天宽带技术有限公司 | A kind of micro-strip paster antenna based on photon crystal structure |
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Effective date of registration: 20191115 Address after: 226400 Zhongtian Industrial Zone, Hekou Town, Rudong County, Jiangsu, Nantong Co-patentee after: Zhongtian Communication Technology Co., Ltd Patentee after: Zhongtian Broadband Technology Co., Ltd. Address before: 226400 Zhongtian Industrial Zone, Hekou Town, Rudong County, Jiangsu, Nantong Patentee before: Zhongtian Broadband Technology Co., Ltd. |
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