CN101752659B - Ultrabroad band double-faced transition groove wire antenna using coplanar waveguide feed - Google Patents
Ultrabroad band double-faced transition groove wire antenna using coplanar waveguide feed Download PDFInfo
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- CN101752659B CN101752659B CN2010101098102A CN201010109810A CN101752659B CN 101752659 B CN101752659 B CN 101752659B CN 2010101098102 A CN2010101098102 A CN 2010101098102A CN 201010109810 A CN201010109810 A CN 201010109810A CN 101752659 B CN101752659 B CN 101752659B
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- tapered slot
- sided
- faced
- backboard
- transition groove
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Abstract
The present invention relates to an ultrabroad band double-faced transition groove wire antenna using coplanar waveguide feed, which is an antenna having the advantages of simple structure, low cost, easy mass production, ultrabroad band working property and high gain. The ultrabroad band double-faced transition groove wire antenna comprises a double-faced transition groove wire plate (1) and a back plate (2) which are mutually connected vertically, wherein the double-faced transition groove wire plates (1) is vertically inserted from a side groove (23) of the back plate (2) with a single-side metal layer (22); a welding location sheet (13) and a back plate metal (222) are welded to be fixed; a transition groove wire (11) of the upper half part of the double-faced transition groove wire plate (1) is welded with the back plate metal (222) to be fixed, and the transition groove wire (11) of the lower half part of the double-faced transition groove wire plate (1) is welded with a central conduction band (221) of a coplanar waveguide. Thus electric contact is ensured. An anharmonicity feed structure can effectively widen the working frequency band of the ultrabroad band double-faced transition groove wire antenna on the basis that the radiance of the ultrabroad band double-faced transition groove wire antenna is ensured.
Description
Technical field
The present invention relates to a kind of organization plan that improves the tapered slot antenna frequency bandwidth characteristics, especially be operated in the tapered slot antenna of microwave frequency band.
Background technology
At present, the tapered slot antenna that is used for microwave frequency band is the direction leading of broadening and radiated electromagnetic wave gradually forward along the groove crack, has characteristics such as broad frequency band, medium gain.Its impedance matching frequency band mainly receives the restriction of resonant mode feed structure.Want further widening frequency band, should use the feed structure of disresonance type instead.The external report once scheme of the anti-pode shape tapered slot of strip line feed, although the impedance frequency band of energy broadening antenna, the frequency band of its directional pattern and gain is still wide inadequately.
Summary of the invention
Technical problem: the present invention proposes a kind of two-sided tapered slot antenna of ultrabroad band that uses coplanar wave guide feedback, makes the impedance band spread of antenna become a plurality of octaves (upper frequency limit/lower-frequency limit >=4), keeps that simultaneously good radiation characteristic is arranged in the frequency band.Present technique also helps in batches and makes, can reduce cost.
Technical scheme: the two-sided tapered slot antenna of the ultrabroad band of use coplanar wave guide feedback of the present invention comprises two blocks of mutual two-sided tapered slot plates connected vertically and backboard; Wherein, Tapered slot that is provided with on the two-sided tapered slot plate and welding spacer symmetry are printed in the tow sides of dielectric-slab, and digging on the backboard has slot, and backboard is provided with one-sided metal level with the side that two-sided tapered slot plate is connected; Etching has two coplanar waveguide feeder line structures that are parallel to each other on one-sided metal level; One-sided metal level is divided into inboard metal, two parts of outside metal, and outside metal is as the ground plate of co-planar waveguide, and inboard metal is the center conduction band of co-planar waveguide; Two-sided tapered slot plate vertically inserts from groove from the side that one-sided metal level is arranged of backboard; Welding spacer and backboard metal solder are fixed; The tapered slot and the outside metal solder of two-sided tapered slot plate the first half are fixed; The center conduction band welding of tapered slot of two-sided tapered slot plate the latter half and co-planar waveguide is fixing, guarantees to electrically contact.Co-planar waveguide is etched in backboard, and co-planar waveguide is formed by connecting with horizontal linkage section vertical section.
Beneficial effect: owing to adopted technique scheme, the present invention has following advantage compared with prior art: the impedance frequency band of (1) antenna has clear improvement the sound interval but broadening quadruples than the tapered slot that uses the resonant mode feeding classification.(2) antenna keeps radiance preferably in this frequency band, and directional pattern is distortion not, and it is higher to gain.(3) antenna belongs to all print structure, is convenient to produce and assembling.
Description of drawings
Fig. 1 is a general structure sketch map of the present invention,
Fig. 2 is the test curve of antenna echo loss frequency response among the present invention,
Fig. 3 is the test curve of antenna gain frequency response among the present invention,
Fig. 4 is that antenna is tested xoy face directional pattern the typical case of 10GHz among the present invention,
Fig. 5 is that antenna is tested xoz face directional pattern the typical case of 10GHz among the present invention.
Embodiment
The present invention is made up of the tapered slot and the rearmounted backboard of printed on both sides.Its two-sided tapered slot is made up of dielectric-slab and the metal level that is printed in the dielectric-slab both sides; Its rearmounted backboard is made up of the dielectric-slab metal level inboard with being positioned at dielectric-slab.Rearmounted backboard central authorities dig has slot, on metal level, is provided with across slot central authorities and is 90 ° of turnings to the ∏ type symmetry line of rabbet joint that extends below; This line of rabbet joint is divided into two parts with the metal level on the backboard, and the inboard metal of the ∏ type line of rabbet joint becomes the center conduction band of co-planar waveguide, and the metal in the ∏ type line of rabbet joint outside becomes the ground plate of co-planar waveguide.After one end of two-sided tapered slot vertically inserted the slit of rearmounted backboard, the ground plate of its upside metal and co-planar waveguide kept electrically contacting, and its downside metal then keeps electrically contacting with the center conduction band layer of co-planar waveguide.
Concrete structure is: this antenna comprises two blocks of mutual two-sided tapered slot plates 1 connected vertically and backboard 2; Wherein, Tapered slot 11 that is provided with on the two-sided tapered slot plate 1 and welding spacer 13 symmetries are printed in the tow sides of dielectric-slab 12; Dig on the backboard 2 slot 23 is arranged; The side that backboard 2 is connected with two-sided tapered slot plate 1 is provided with one-sided metal level 22, and etching has two coplanar waveguide feeder line structures 24 that are parallel to each other on one-sided metal level 22, and one-sided metal level 22 is divided into inboard metal 221,222 two parts of outside metal; Outside metal 222 is as the ground plate of co-planar waveguide, and inboard metal 221 is the center conduction band of co-planar waveguide; Two-sided tapered slot plate 1 vertically inserts from groove 23 from a side of the one-sided metal level 22 of having of backboard 2; Welding spacer 13 is fixing with 222 welding of backboard metal; The tapered slot 11 of two-sided tapered slot plate 1 the first half is fixing with 222 welding of outside metal; The tapered slot 11 of tapered slot 1 the latter half is fixing with 221 welding of the center conduction band of co-planar waveguide, guarantees to electrically contact.
Existing specific embodiments of the invention combines following embodiment and accompanying drawing thereof to describe in further detail.
Two-sided tapered slot plate 1 is selected the medium (ε of thick 0.5mm for use
r=2.2) dielectric-slab 12, the length 93mm of this substrate, and width 60mm, the two sides symmetry is printed with identical tapered slot 11 metal levels and welding spacer 13.The left side curve shape of tapered slot 11 is 1/4th elliptic arcs, and long axis of ellipse and minor axis length are respectively 54mm and 40mm; The inside curve of tapered slot 11 is shaped as exponential type curve broadening to dielectric-slab 12 edges gradually, by equation y (χ)=± [0.156exp (0.06 χ)-0.106] describe.Welding spacer 13 is rectangular metal pasters of long 10mm, wide 2mm.Rearmounted backboard 2 is selected the medium (ε of thick 1.6mm for use
r=4.4) substrate, the area of this backboard are 100mm * 40mm, and digging along center line has slot 23, wherein goes up the long 5mm of slot, wide 1mm, are used for inserting the welding spacer; The long 10mm of following slot, wide 1mm are used to insert two-sided tapered slot plate 1.Etching coplanar waveguide feeder line structure 24 on one-sided metal level 22, vertical section 241 long 50.175mm of coplanar waveguide feeder line structure 24, wide 0.35mm; Horizontal linkage section 242 long 3.7mm, wide 0.35mm.The inboard metal 221 of co-planar waveguide is the long 19.825mm of central conduction band, wide 3mm.The upside metal of two-sided tapered slot plate 1 and 222 welding of the outside metal of backboard keep electrically contacting, and the inboard metal solder of the downside metal of two-sided tapered slot plate 1 and backboard keeps electrically contacting, and welding spacer 13 is used for fixing with 222 welding of outside metal.
Utilize 2008 pairs of antenna structures of CST MICROWAVE STUDIO of CST company to carry out the all-wave simulation analysis, optimize the physical dimension that meets the antenna requirement, and be processed into sample, test.Test result show this antenna in the frequency range of 3～20GHz S11 less than-10dB, the only slightly lifting of 0.5dB about 10.45GHz.On the frequency range of 4～16GHz, gain is 10 ± 3.5dB, and antenna can be realized effective directed radiation.
Claims (2)
1. two-sided tapered slot antenna of ultrabroad band that uses coplanar wave guide feedback, it is characterized in that: this antenna comprises two blocks of mutual two-sided tapered slot plates connected vertically (1) and backboard (2); Wherein, Two-sided tapered slot plate (1) is gone up the tapered slot (11) that is provided with and is welded the tow sides that spacer (13) symmetry is printed in dielectric-slab (12); Tapered slot (11) is divided into symmetry two parts up and down; Lean on the inside curve of the tapered slot of center line be shaped as exponential type curve gradually broadening to the dielectric-slab edge; The inner of tapered slot (11) is the side that backboard (2) is connected with two-sided tapered slot plate (1) with the inner that the welding spacer (13) that is positioned at gap, the inner both sides of tapered slot (11) all is positioned at two-sided tapered slot plate (1), and backboard (2) is gone up to dig has two slots (23), and the side that backboard (2) is connected with two-sided tapered slot plate (1) is provided with one-sided metal level (22); Go up etching at one-sided metal level (22) two coplanar waveguide feeder line structures (24) that are parallel to each other are arranged; One-sided metal level (22) is divided into inboard metal (221), (222) two parts of outside metal, and outside metal (222) is as the ground plate of co-planar waveguide, and inboard metal (221) is the center conduction band of co-planar waveguide; Two-sided tapered slot plate (1) inserts from slot (23) is vertical from the side that one-sided metal level (22) is arranged of backboard (2); Welding spacer (13) is fixing with backboard metal (222) welding; The tapered slot (11) of two-sided tapered slot plate (1) the first half is fixing with outside metal (222) welding; The tapered slot (11) of two-sided tapered slot plate (1) the latter half is fixing with the welding of the center conduction band (221) of co-planar waveguide, guarantees to electrically contact.
2. the two-sided tapered slot antenna of the ultrabroad band of use coplanar wave guide feedback according to claim 1 is characterized in that co-planar waveguide (24) is etched in backboard (2), and co-planar waveguide (24) is formed by connecting vertical section (241) and horizontal linkage section (242).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101098102A CN101752659B (en) | 2010-02-10 | 2010-02-10 | Ultrabroad band double-faced transition groove wire antenna using coplanar waveguide feed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101098102A CN101752659B (en) | 2010-02-10 | 2010-02-10 | Ultrabroad band double-faced transition groove wire antenna using coplanar waveguide feed |
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| CN101752659A CN101752659A (en) | 2010-06-23 |
| CN101752659B true CN101752659B (en) | 2012-07-25 |
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| CN2010101098102A Expired - Fee Related CN101752659B (en) | 2010-02-10 | 2010-02-10 | Ultrabroad band double-faced transition groove wire antenna using coplanar waveguide feed |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904011B (en) * | 2012-10-30 | 2015-01-14 | 哈尔滨工业大学 | Balance microstrip line transition full-mode dual-ridged integrated waveguide feed dipole printed antenna |
| CN102904012B (en) * | 2012-10-30 | 2014-12-24 | 哈尔滨工业大学 | Combined semicircular dipole printed antenna of balance microstrip line transition waveguide feed |
| CN105514588B (en) * | 2016-02-01 | 2018-08-24 | 华东师范大学 | Multiple frequency bands broadband tapered slot antenna and quadrature dualpolarized broadband tapered slot antenna |
| CN108400429B (en) * | 2018-02-01 | 2020-03-06 | 上海交通大学 | Ultra-wideband dual-polarized antenna |
| CN115441147B (en) * | 2020-05-29 | 2023-10-10 | 本源量子计算科技（合肥）股份有限公司 | Construction method of coplanar waveguide resonator layout and construction method of air bridge layer |
| CN115020975B (en) * | 2022-08-09 | 2022-12-09 | 中信科移动通信技术股份有限公司 | Circularly polarized gradient double-slotted antenna and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815812A (en) * | 2006-01-20 | 2006-08-09 | 东南大学 | Wide-band shaped-beam antenna for mobile communication |
| CN101409383A (en) * | 2008-11-25 | 2009-04-15 | 东南大学 | Ultra-wideband beam-shaped antenna |
| CN201638940U (en) * | 2010-04-29 | 2010-11-17 | 东南大学 | Quadruple frequency interval printed antenna using travelling wave feeding structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2379088B (en) * | 2001-08-24 | 2005-06-01 | Roke Manor Research | Improvements in antennas |
| US8466845B2 (en) * | 2006-09-11 | 2013-06-18 | University Of Massachusetts | Wide bandwidth balanced antipodal tapered slot antenna and array including a magnetic slot |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815812A (en) * | 2006-01-20 | 2006-08-09 | 东南大学 | Wide-band shaped-beam antenna for mobile communication |
| CN101409383A (en) * | 2008-11-25 | 2009-04-15 | 东南大学 | Ultra-wideband beam-shaped antenna |
| CN201638940U (en) * | 2010-04-29 | 2010-11-17 | 东南大学 | Quadruple frequency interval printed antenna using travelling wave feeding structure |
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| CN101752659A (en) | 2010-06-23 |
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