CN101707288B - Folding ultra-broadband tapered slot antenna - Google Patents
Folding ultra-broadband tapered slot antenna Download PDFInfo
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- CN101707288B CN101707288B CN 200910235095 CN200910235095A CN101707288B CN 101707288 B CN101707288 B CN 101707288B CN 200910235095 CN200910235095 CN 200910235095 CN 200910235095 A CN200910235095 A CN 200910235095A CN 101707288 B CN101707288 B CN 101707288B
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Abstract
折叠式渐变槽线超宽带天线，涉及的是一种采用印刷电路板技术制作的折叠式渐变槽线超宽带天线。该超宽带天线增益高，结构简单，可用于各种超宽带通信设备中，其使用有利于系统的小型化和提高系统的灵敏度，两条直线渐变槽线(5)蚀刻在介质基板(4)的金属地板(1)上，并将这两条直线渐变槽线开口方向相反的连接起来，在介质基板(4)的另一面用带接地过孔(3)的微带线(2)作为输入馈线，微带馈线(2)与直线渐变槽线(5)分别位于介质基板(4)的两侧，并相互垂直，介质基板(4)折成U形，使得两条直线渐变槽线(5)相互平行。
The utility model relates to a folded tapered slot line ultra-wideband antenna, which relates to a folded tapered slot line ultra-wide band antenna manufactured by using printed circuit board technology. The ultra-wideband antenna has high gain and simple structure, and can be used in various ultra-wideband communication devices. Its use is conducive to the miniaturization of the system and the improvement of the sensitivity of the system. Two straight line gradient grooves (5) are etched on the dielectric substrate (4) on the metal floor (1), and connect the two straight-line tapered slot lines with opposite opening directions, and use the microstrip line (2) with a ground via hole (3) on the other side of the dielectric substrate (4) as the input The feeder line, the microstrip feeder line (2) and the linear gradient groove line (5) are respectively located on both sides of the dielectric substrate (4), and are perpendicular to each other, and the dielectric substrate (4) is folded into a U shape, so that the two linear gradient groove lines (5 ) parallel to each other.
Description
Technical field
What the present invention relates to is a kind of folding ultra-broadband tapered slot antenna that adopts printed-board technology to make.This ultra-wideband antenna gain is high, simple in structure, can be used in the various ultra-wideband communication devices, and its use is conducive to the miniaturization of system and the sensitivity that improves system, belongs to microwave technical field.
Background technology
Because FCC (FCC) has promulgated that prerequisite that 3.1～10.6GHz ultra broadband is used for wireless communication system is that the effectively in the same way radiant power of signal is no more than-41.25dBm/MHz, so the operating distance of this radio ultra wide band system is very limited.In order to improve the work quality of antenna link, improve channel capacity and operating distance, the orientation system that need to have high-gain is supported.One of effective ways that address this problem are exactly the ultra-wideband antenna that adopts high-gain.
The orthoscopic tapered slot antenna is to etch the orthoscopic gradual change type line of rabbet joint by the ground at medium substrate to form, and its character is similar to traveling-wave antenna.It has symmetrical wave beam, moderate gain and wider bandwidth.Although this antenna can cover the whole required frequency range of wireless terminal, satisfied radiance can be provided on very wide impedance bandwidth, but it can not realize radiation and the reception of orientation, high-gain, thereby has limited communication distance and in the application of some special occasions.
Summary of the invention
Technical problem: the object of the invention is to the problem for the existence of orthoscopic tapered slot antenna, a kind of novel high-gain ultra-wideband antenna is proposed, this antenna is by forming end-fired array with two orthoscopic gradual change slits, it not only can satisfy ultra-wideband communication system to the requirement of antenna impedance bandwidth, and the gain that improved greatly antenna of the mode by group battle array.
Technical scheme: the structure of folding ultra-broadband tapered slot antenna of the present invention is: the metal floor at medium substrate etches two rectigradation line of rabbet joint, and with opposing the coupling together of this two rectigradation line of rabbet joint opening directions.Use the short circuit microstrip line as incoming feeder at another side, feeder line and the line of rabbet joint lay respectively at the both sides of medium substrate, and mutually vertical, and its effect is the switching as little band-line of rabbet joint, in order to be complementary with 50 ohm of ports of input; At last medium substrate is converted into U-shaped, so that two rectigradation line of rabbet joint are parallel to each other.
Beneficial effect: microstrip line is still adopted in the input of antenna, antenna is comprised of two rectigradation line of rabbet joint, opposing the coupling together of this two rectigradation line of rabbet joint openings, microstrip line and the line of rabbet joint are produced in the both sides of medium substrate, microstrip line and the line of rabbet joint are perpendicular, and by ground connection via hole ground connection (as shown in Figure 1), brought larger flexibility for like this coupling of regulating antenna and input port.Medium substrate is converted into U-shaped, so that two rectigradation line of rabbet joint are parallel to each other, forms end-fired array, and this has just improved the gain of antenna greatly.Advantage of the present invention: simple and compact for structure, gain high, be easy to processing and fabricating, superior performance.
Description of drawings
Fig. 1 is the structural representation of antenna.Have among the figure: metal floor 1, microstrip line 2, ground connection via hole 3, medium substrate 4, the line of rabbet joint 5.
Fig. 2 is the frequency characteristic schematic diagram of the reflection parameters of antenna, also namely uses the vector network analyzer measurement to obtain | S
11|.
Fig. 3 is the frequency characteristic schematic diagram of antenna gain parameter.
Fig. 4 a is E face and the H face directional diagram of antenna when being operated in 3GHz, and wherein solid line represents main pole, and dotted line represents cross polarization;
Fig. 4 b is E face and the H face directional diagram of antenna when being operated in 7GHz, and wherein solid line represents main pole, and dotted line represents cross polarization;
Fig. 4 c is E face and the H face directional diagram of antenna when being operated in 10GHz, and wherein solid line represents main pole, and dotted line represents cross polarization.
Embodiment
In the folding ultra-broadband tapered slot antenna of the present invention, article two, the rectigradation line of rabbet joint 5 is etched on the metal floor 1 of medium substrate 4, and with opposite the coupling together of this two rectigradation line of rabbet joint opening directions, the another side of medium substrate 4 with the microstrip line 2 of ground connection via hole 3 as incoming feeder, microstrip feed line 2 and the rectigradation line of rabbet joint 5 lay respectively at the both sides of medium substrate 4, and mutually vertical, medium substrate 4 is converted into U-shaped, so that two rectigradation line of rabbet joint 5 are parallel to each other.Linked together as the radiating element of antenna in the opposing mode of opening direction by two rectigradation line of rabbet joint 5, the length of microstrip line 2 can be regulated, in order to the impedance matching of control antenna and input port.
Embodiment 1 (contrast accompanying drawing 1) etches the rectigradation formula line of rabbet joint 5 on the metal ground 1 of medium substrate 4, again medium substrate is converted into U-shaped, and the relative dielectric constant of medium substrate is 2.2, and thickness is 1 millimeter; Use the microstrip line 2 with ground connection via hole 3 to carry out feed at the another side of medium substrate.The concrete structure parameter is as follows: the width of rectigradation line of rabbet joint the widest part is 39 millimeters, and the width at narrow place is 0.6 millimeter, and the height of antenna is 79 millimeters, and the length of antenna both wings is 72 millimeters, and both wings are at a distance of 46 millimeters.
Contrast accompanying drawing 2, it has provided the frequency characteristic of antenna-reflected parameter.As seen from the figure antenna-10dB impedance bandwidth is about 114.7% (2.9GHz-10.7GHz), satisfies ultra-wideband communication system to the requirement of antenna impedance bandwidth.
Accompanying drawing 3, it has provided respectively antenna at 3GHz, the antenna pattern at 7GHz and 10GHz place, as can be seen from the figure this antenna has better cross-polarization performance and directionality.
Accompanying drawing 4, it has provided the change in gain curve of antenna in-10dB impedance bandwidth, and as can be seen from the figure the gain of antenna more than 8dBi, is up to 9.8dBi substantially.
This ultra-wideband antenna has improved antenna gain significantly, and simple in structure, is easy to processing and fabricating.Adopt this antenna to be conducive to improve channel capacity and the operating distance of ultra-wideband communication system.Therefore the present invention has a wide range of applications.
Claims (2)
1. folding ultra-broadband tapered slot antenna, it is characterized in that two rectigradation line of rabbet joint (5) are etched on the metal floor (1) of medium substrate (4), and with opposite the coupling together of this two rectigradation line of rabbet joint opening directions, use the microstrip line (2) of band ground connection via hole (3) as incoming feeder at the another side of medium substrate (4), microstrip feed line (2) and the rectigradation line of rabbet joint (5) lay respectively at the both sides of medium substrate (4), and mutually vertical, medium substrate (4) is converted into U-shaped, so that two rectigradation line of rabbet joint (5) are parallel to each other.
2. folding ultra-broadband tapered slot antenna according to claim 1, it is characterized in that being linked together as the radiating element of antenna in the opposite mode of opening direction by two rectigradation line of rabbet joint (5), the length of microstrip line (2) can be regulated, in order to the impedance matching of control antenna and input port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910235095 CN101707288B (en) | 2009-11-13 | 2009-11-13 | Folding ultra-broadband tapered slot antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910235095 CN101707288B (en) | 2009-11-13 | 2009-11-13 | Folding ultra-broadband tapered slot antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101707288A CN101707288A (en) | 2010-05-12 |
| CN101707288B true CN101707288B (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910235095 Expired - Fee Related CN101707288B (en) | 2009-11-13 | 2009-11-13 | Folding ultra-broadband tapered slot antenna |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895009B (en) * | 2010-06-13 | 2013-06-05 | 南京邮电大学 | Double-frequency broad-band antenna with symmetrical dipole-tapered slot line combined structure |
| FR2970603A1 (en) * | 2011-01-13 | 2012-07-20 | Thomson Licensing | SLOT TYPE PRINTED DIRECTIVE ANTENNA AND NETWORK SYSTEM MULTIPLE ANTENNAES SLOT-TYPE PRINTED DIRECTIVES |
| CN103219593B (en) * | 2013-04-07 | 2015-07-01 | 华南理工大学 | Planar ultra-wideband filter antenna adopting short-circuit lead |
| KR101309572B1 (en) * | 2013-05-30 | 2013-09-17 | 주식회사 이엠따블유 | Antenna |
| CN109546309B (en) * | 2018-11-27 | 2020-08-28 | 英业达科技有限公司 | Metal interference resistant dipole antenna |
| CN110739531B (en) * | 2019-10-18 | 2021-02-26 | 瑞声科技(新加坡)有限公司 | Antenna unit, antenna module and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7088294B2 (en) * | 2004-06-02 | 2006-08-08 | Research In Motion Limited | Mobile wireless communications device comprising a top-mounted auxiliary input/output device and a bottom-mounted antenna |
| CN1972014A (en) * | 2006-10-26 | 2007-05-30 | 上海交通大学 | Pocket super-broadband antenna |
| JP3923847B2 (en) * | 2002-05-14 | 2007-06-06 | 日本アンテナ株式会社 | Polarization diversity antenna |
| CN101345345A (en) * | 2008-09-09 | 2009-01-14 | 南京邮电大学 | Ultra-wideband semi-folded antipodal slot antenna and manufacturing method thereof |
-
2009
- 2009-11-13 CN CN 200910235095 patent/CN101707288B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3923847B2 (en) * | 2002-05-14 | 2007-06-06 | 日本アンテナ株式会社 | Polarization diversity antenna |
| US7088294B2 (en) * | 2004-06-02 | 2006-08-08 | Research In Motion Limited | Mobile wireless communications device comprising a top-mounted auxiliary input/output device and a bottom-mounted antenna |
| CN1972014A (en) * | 2006-10-26 | 2007-05-30 | 上海交通大学 | Pocket super-broadband antenna |
| CN101345345A (en) * | 2008-09-09 | 2009-01-14 | 南京邮电大学 | Ultra-wideband semi-folded antipodal slot antenna and manufacturing method thereof |
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| CN101707288A (en) | 2010-05-12 |
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Owner name: SHENZHEN 3G ANTENNA TECH CO., LTD. Free format text: FORMER OWNER: NANJING POST + TELECOMMUNICATION UNIV. Effective date: 20150217 |
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Free format text: CORRECT: ADDRESS; FROM: 210003 NANJING, JIANGSU PROVINCE TO: 518109 SHENZHEN, GUANGDONG PROVINCE |
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Effective date of registration: 20150217 Address after: 518109, Guangdong, Longhua New District, Longhua street, clear lake community, Silicon Valley power Clear Lake Park, A1 building, first floor, Longhua New District, two East Ring Road, 48, Huasheng science building, 6 floor, Shenzhen Patentee after: Shenzhen Sanji Antenna Technology Co., Ltd. Address before: 210003 Nanjing City, Jiangsu Province, the new model road No. 66 Patentee before: Nanjing Post & Telecommunication Univ. |
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Granted publication date: 20130102 Termination date: 20181113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |