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WO1999066594A1 - A wideband microstrip element for array antenna - Google Patents

A wideband microstrip element for array antenna Download PDF

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Publication number
WO1999066594A1
WO1999066594A1 PCT/CN1999/000080 CN9900080W WO9966594A1 WO 1999066594 A1 WO1999066594 A1 WO 1999066594A1 CN 9900080 W CN9900080 W CN 9900080W WO 9966594 A1 WO9966594 A1 WO 9966594A1
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WO
WIPO (PCT)
Prior art keywords
patch
array antenna
dielectric substrate
dielectric
metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN1999/000080
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French (fr)
Chinese (zh)
Inventor
Kunjie Zhuang
Limeng Xiao
Haijuan Fan
Zhijun Liu
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU42553/99A priority Critical patent/AU4255399A/en
Publication of WO1999066594A1 publication Critical patent/WO1999066594A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna

Definitions

  • the present invention relates to an antenna used as a front end of a transmitter and a receiver, in particular to a microstrip array antenna unit.
  • Microstrip antennas as transceiver front-ends, are widely used in satellite communications, radar, weapon fuze and other systems. At present, practical microstrip array antenna units are mostly single patch units. The center frequency of the work is determined by the size of the patch. The working frequency is narrow, the gain is low, and the efficiency is low. Applications are limited.
  • An object of the present invention is to overcome the disadvantages of the foregoing prior art and provide a microstrip array antenna unit with a wide frequency band, high gain, and high efficiency.
  • a wideband microstrip array antenna unit having a microstrip feeder, a dielectric layer, a grounded metal plate, a coupling window opened on the grounded metal plate, a metal patch, and a patch medium
  • the substrate is characterized by having a first patch and its dielectric substrate and a second patch and its dielectric substrate.
  • the hollow metal support and the dielectric pillar are fixedly connected to the ground metal plate in this order.
  • the sheet is fixed on the hollow hole of the metal support, the dielectric substrate of the second patch is fixed on the dielectric pillar, one is formed between the grounded metal plate and the first patch, and the other is formed between the first patch and the second patch. Resonant cavity.
  • the ground metal plate separates the feeder portion from the radiating portion.
  • the input energy on the feeder line can be coupled into the two resonant cavities through the coupling window, and the first and second two-layer patches are excited by the resonant cavity. Get better impedance matching and radiate as much input energy as possible.
  • each unit can share a ground metal plate, and the hollow metal support can also be made of a thick metal plate to form a microstrip array antenna as a whole.
  • FIG. 1 is a schematic diagram of a longitudinal section of an embodiment of the present invention.
  • FIG. 2 is a top view of an embodiment of the present invention.
  • the broadband microstrip array antenna unit of the present invention has a microstrip feed line 1, a dielectric layer 2, a ground metal plate 3, a coupling window 4 opened on the ground metal plate, and a first metal patch 6.
  • a microstrip feed line 1 a dielectric layer 2, a ground metal plate 3, a coupling window 4 opened on the ground metal plate, and a first metal patch 6.
  • the second metal patch 8 and its dielectric substrate 9, the hollow metal support 13 and the dielectric pillar 12 are fixedly connected in order on the ground metal plate 3, and the dielectric substrate 7 of the first patch 6 passes through
  • the screw 10 is fixed on the edge step 11 of the hollow hole of the metal support 13, and the dielectric substrate 9 of the second patch 8 is fixed on the dielectric pillar 12. Therefore, between the ground metal plate 3 and the first patch 6, the first A resonant cavity 51, 52 is formed between each of the patch 6 and the second patch 8.
  • the area of the first metal patch 6 is smaller than the cross section of the resonant cavity 51 where the first metal patch 6 is located, so that the resonant cavity 51 can excite the first and second metal patches.
  • the cross section of the two resonant cavities can be square, rectangular, or circular, and the shape of the two metal patches corresponds to the cross sectional shape of the resonant cavity.

Landscapes

  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

A wideband microstrip element for array antenna has a microstrip feed line, a dielectric layer, a metal ground plate, a coupling window, a first patch and its dielectric substrate, a second patch and its dielectric substrate. Hollow metal pedestal and dielectric abutments are mounted on a metal ground plate in sequence, the dielectric substrate of the first patch is arranged on an opening of the hollow metal pedestal and the dielectric substrate of the second patch is fixed on dielectric abutments, forming resonance cavity between metal ground plate and first patch and between rfirst patch and second patch, respectively. The antenna array described above has characteristics of wide operation frequency band, higher gain, high efficiency, simple structure and easy fabrication.

Description

一种宽频带微带阵列天线单元 技术领域  TECHNICAL FIELD

本发明涉及一种作为发射、 接收机前端的天线， 特别是一种微带 阵列天线单元。  The present invention relates to an antenna used as a front end of a transmitter and a receiver, in particular to a microstrip array antenna unit.

背景技术 Background technique

微带天线， 作为收发机前端， 广泛用于卫星通信、 雷达、 武器引 信等系统中。 目前， 实用的微带阵列天线单元多为单贴片的单元， 由 贴片的尺寸确定工作的中心频率， 工作频带窄， 增益低， 效率低， 应 用受到艮大限制。  Microstrip antennas, as transceiver front-ends, are widely used in satellite communications, radar, weapon fuze and other systems. At present, practical microstrip array antenna units are mostly single patch units. The center frequency of the work is determined by the size of the patch. The working frequency is narrow, the gain is low, and the efficiency is low. Applications are limited.

发明内容 Summary of the Invention

本发明的目的是， 克服前述已有技术的缺点， 提供一种宽频带、 高增益、 高效率的微带阵列天线单元。  An object of the present invention is to overcome the disadvantages of the foregoing prior art and provide a microstrip array antenna unit with a wide frequency band, high gain, and high efficiency.

本发明的目的通过如下的技术方案实现： 一种宽频带微带阵列天 线单元， 具有微带馈线、 介质层、 接地金属板、 开在接地金属板上的 耦合窗、 金属贴片、 贴片介质基片， 其特征是具有第一贴片及其介质 基片和第二贴片及其介质基片， 在接地金属板上依次固定连接空心金 属支座和介质支柱， 第一贴片的介质基片固定在金属支座空心孔上， 第二贴片的介质基片固定在介质支柱上， 在接地金属板与第一贴片之 间、 第一贴片与第二贴片之间各形成一个谐振腔。  The object of the present invention is achieved by the following technical solution: A wideband microstrip array antenna unit having a microstrip feeder, a dielectric layer, a grounded metal plate, a coupling window opened on the grounded metal plate, a metal patch, and a patch medium The substrate is characterized by having a first patch and its dielectric substrate and a second patch and its dielectric substrate. The hollow metal support and the dielectric pillar are fixedly connected to the ground metal plate in this order. The sheet is fixed on the hollow hole of the metal support, the dielectric substrate of the second patch is fixed on the dielectric pillar, one is formed between the grounded metal plate and the first patch, and the other is formed between the first patch and the second patch. Resonant cavity.

根据上述结构， 接地金属板将馈线部分与辐射部分隔开， 工作 时， 馈线上的输入能量可以通过耦合窗耦合到两个谐振腔中， 由谐振 腔激励第一、 第二两层贴片， 得到较好的阻抗匹配， 并将输入能量尽 可能多地辐射出去。  According to the above structure, the ground metal plate separates the feeder portion from the radiating portion. During operation, the input energy on the feeder line can be coupled into the two resonant cavities through the coupling window, and the first and second two-layer patches are excited by the resonant cavity. Get better impedance matching and radiate as much input energy as possible.

实践证明， 本发明工作频带宽 (20%), 增益高 (9dB), 效率高， 且 具有结构简单、 加工制作方便的优点。 用其制作阵列天线时， 各单元 可以共用一块接地金属板， 空心金属支座也可以由一块厚金属板制 做， 形成一个微带阵列天线整体。  Practice has proved that the working frequency bandwidth (20%), high gain (9dB), and high efficiency of the present invention have the advantages of simple structure and convenient processing. When using it to make an array antenna, each unit can share a ground metal plate, and the hollow metal support can also be made of a thick metal plate to form a microstrip array antenna as a whole.

1 1

确 认 本 附图概述 Confirm this Overview of the drawings

下面参照附图并结合实施例对本发明进行详细描述。  The present invention is described in detail below with reference to the drawings and embodiments.

图 1为本发明实施例的纵剖结构示意图。  FIG. 1 is a schematic diagram of a longitudinal section of an embodiment of the present invention.

图 2为本发明实施例的俯视图。  FIG. 2 is a top view of an embodiment of the present invention.

本发明的最佳实施例 Preferred embodiment of the invention

如图 1和图 2所示， 本发明宽频带微带阵列天线单元具有微带馈 线 1、 介质层 2、 接地金属板 3、 开在接地金属板上的耦合窗 4、 第一 金属贴片 6及其介质基片 7、 第二金属贴片 8及其介质基片 9, 在接 地金属板 3上依次固定连接空心金属支座 13和介质支柱 12, 第一贴 片 6的介质基片 7通过螺钉 10固定在金属支座 13的空心孔边缘台阶 11上， 第二贴片 8的介质基片 9固定在介质支柱 12上， 于是在接地 金属板 3与第一贴片 6之间、 第一贴片 6与第二贴片 8之间各形成一 个谐振腔 51、 52。  As shown in FIG. 1 and FIG. 2, the broadband microstrip array antenna unit of the present invention has a microstrip feed line 1, a dielectric layer 2, a ground metal plate 3, a coupling window 4 opened on the ground metal plate, and a first metal patch 6. And its dielectric substrate 7, the second metal patch 8 and its dielectric substrate 9, the hollow metal support 13 and the dielectric pillar 12 are fixedly connected in order on the ground metal plate 3, and the dielectric substrate 7 of the first patch 6 passes through The screw 10 is fixed on the edge step 11 of the hollow hole of the metal support 13, and the dielectric substrate 9 of the second patch 8 is fixed on the dielectric pillar 12. Therefore, between the ground metal plate 3 and the first patch 6, the first A resonant cavity 51, 52 is formed between each of the patch 6 and the second patch 8.

实施例中， 第一金属贴片 6的面积小于其所在谐振腔 51的横截 面， 以便谐振腔 51能激励第一、 第二金属贴片。 两谐振腔的横截面 可以是正方形、 矩形或者圆形， 两金属贴片的形状与谐振腔横截面形 状相应。  In the embodiment, the area of the first metal patch 6 is smaller than the cross section of the resonant cavity 51 where the first metal patch 6 is located, so that the resonant cavity 51 can excite the first and second metal patches. The cross section of the two resonant cavities can be square, rectangular, or circular, and the shape of the two metal patches corresponds to the cross sectional shape of the resonant cavity.

为了使本发明工作效果更好， 进一步的特征是： 1)两金属贴片的 面积不等， 2)耜合窗 4位于谐振腔 51下底面接地金属板 3的中心线 上， 并且横跨于微带馈线上。  In order to make the present invention work better, further features are: 1) the areas of the two metal patches are different, 2) the coupling window 4 is located on the center line of the ground metal plate 3 under the resonant cavity 51, and spans Microstrip feeder.

Claims

权 利 要 求 Rights request 1. 一种宽频带微带阵列天线单元， 具有微带馈线、 介质层、 接地 金属板、 开在接地金属板上耦合窗、 金属贴片、 贴片介质基片， 其特 征是具有第一贴片及其介质基片和第二贴片及其介质基片， 在接地金 属板上依次固定连接空心金属支座和介质支柱， 第一贴片的介质基片 固定在金属支座空心孔上， 第二贴片的介质基片固定在介质支柱上， 在接地金属板与第一贴片之间、 第一贴片与第二贴片之间各形成一个 谐振腔。 1. A broadband microstrip array antenna unit, comprising a microstrip feed line, a dielectric layer, a grounded metal plate, a coupling window opened on the grounded metal plate, a metal patch, and a patch dielectric substrate, characterized in that it has a first patch The sheet and its dielectric substrate and the second patch and its dielectric substrate are sequentially fixedly connected to the hollow metal support and the dielectric pillar on the grounded metal plate, and the dielectric substrate of the first patch is fixed to the hollow hole of the metal support. The dielectric substrate of the second patch is fixed on the dielectric pillar, and a resonant cavity is formed between the ground metal plate and the first patch, and between the first patch and the second patch. 2. 根据权利要求 1所述的宽频帶微带阵列天线单元， 其特征是 合窗位于谐振腔下底面接地金属板的中心线上， 并且横跨于微带馈线 上。  2. The wideband microstrip array antenna unit according to claim 1, characterized in that the closing window is located on the center line of the ground metal plate under the resonant cavity and spans the microstrip feed line. 3. 根据权利要求 1所述的宽频带微帶阵列天线单元， 其特征是两 金属贴片的面积不相等。  3. The wideband microstrip array antenna unit according to claim 1, wherein the areas of the two metal patches are not equal. 4. 根据权利要求 1或 2或 3所述的宽频带微带阵列天线单元， 其 特征是两谐振腔的横截面为正方形， 两金属贴片的形状与谐振腔横截 面形状 应。  4. The wideband microstrip array antenna unit according to claim 1 or 2 or 3, characterized in that the cross-section of the two resonant cavities is square, and the shape of the two metal patches and the cross-sectional shape of the resonant cavity should be. 5. 根据权利要求 1或 2或 3所述的宽频带微带阵列天线单元， 其 特征是两谐振腔的横截面为矩形， 两金属贴片的形状与谐振腔横截面 形状相应。  5. The wideband microstrip array antenna unit according to claim 1 or 2 or 3, characterized in that the cross section of the two resonant cavities is rectangular, and the shape of the two metal patches corresponds to the shape of the cross section of the resonant cavity. 6. 根据权利要求 1或 2或 3所述的宽频带微带阵列天线单元， 其 特征是两谐振腔的横截面为圆形， 两金属贴片的形状与谐振腔横截面 形状相应。  6. The wideband microstrip array antenna unit according to claim 1 or 2 or 3, characterized in that the cross section of the two resonant cavities is circular, and the shape of the two metal patches corresponds to the shape of the cross section of the resonant cavity.
PCT/CN1999/000080 1998-06-12 1999-06-11 A wideband microstrip element for array antenna Ceased WO1999066594A1 (en)

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Application Number Priority Date Filing Date Title
AU42553/99A AU4255399A (en) 1998-06-12 1999-06-11 A wideband microstrip element for array antenna

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN98227039U CN2329091Y (en) 1998-06-12 1998-06-12 Broad band microstrip array antenna unit
CN98227039.9 1998-06-12

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FR2827430A1 (en) * 2001-07-11 2003-01-17 France Telecom Satellite biband receiver/transmitter printed circuit antenna having planar shapes radiating elements and first/second reactive coupling with radiating surface areas coupled simultaneously
FR2828014A1 (en) * 2001-07-27 2003-01-31 D Phy Espace Dev De Produits H Antenna for flat antennae receiving signals of Ultra and Very High Frequency incorporates a feed circuit, a parallel surface conductor and at least one conducting block connected to the micro-tape of the feed circuit and the earth surface
WO2003030301A1 (en) * 2001-10-01 2003-04-10 Raytheon Company Slot coupled, polarized radiator
WO2003041220A1 (en) * 2001-11-08 2003-05-15 Robert Bosch Gmbh Stripline antenna and method for the production thereof
WO2004079861A1 (en) * 2003-03-06 2004-09-16 Raysat Cyprus Limited Flat mobile antenna system
DE10318815A1 (en) * 2003-04-17 2004-11-04 Valeo Schalter Und Sensoren Gmbh Slot-coupled radar antenna with radiation areas
WO2009133448A3 (en) * 2008-04-30 2009-12-23 Topcon Gps Llc Broadband patch antenna system
US7859835B2 (en) 2009-03-24 2010-12-28 Allegro Microsystems, Inc. Method and apparatus for thermal management of a radio frequency system
US8508943B2 (en) 2009-10-16 2013-08-13 Raytheon Company Cooling active circuits
KR101318830B1 (en) * 2010-09-07 2013-10-17 쿤지에 쭈앙 Dual-polarized microstrip antenna
US8810448B1 (en) 2010-11-18 2014-08-19 Raytheon Company Modular architecture for scalable phased array radars
US8981869B2 (en) 2006-09-21 2015-03-17 Raytheon Company Radio frequency interconnect circuits and techniques
US9019166B2 (en) 2009-06-15 2015-04-28 Raytheon Company Active electronically scanned array (AESA) card
US9124361B2 (en) 2011-10-06 2015-09-01 Raytheon Company Scalable, analog monopulse network
US9130278B2 (en) 2012-11-26 2015-09-08 Raytheon Company Dual linear and circularly polarized patch radiator
US9172145B2 (en) 2006-09-21 2015-10-27 Raytheon Company Transmit/receive daughter card with integral circulator
CN110829005A (en) * 2018-08-08 2020-02-21 北京航天雷特机电工程有限公司 A microwave antenna and microwave cavity

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WO2003007423A1 (en) * 2001-07-11 2003-01-23 France Telecom Reactive coupling antenna comprising two radiating elements
FR2827430A1 (en) * 2001-07-11 2003-01-17 France Telecom Satellite biband receiver/transmitter printed circuit antenna having planar shapes radiating elements and first/second reactive coupling with radiating surface areas coupled simultaneously
US7091907B2 (en) 2001-07-11 2006-08-15 France Telecom Reactive coupling antenna comprising two radiating elements
FR2828014A1 (en) * 2001-07-27 2003-01-31 D Phy Espace Dev De Produits H Antenna for flat antennae receiving signals of Ultra and Very High Frequency incorporates a feed circuit, a parallel surface conductor and at least one conducting block connected to the micro-tape of the feed circuit and the earth surface
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WO2003030301A1 (en) * 2001-10-01 2003-04-10 Raytheon Company Slot coupled, polarized radiator
US6624787B2 (en) 2001-10-01 2003-09-23 Raytheon Company Slot coupled, polarized, egg-crate radiator
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JP2005505963A (en) * 2001-10-01 2005-02-24 レイセオン・カンパニー Slot coupled polarization radiator
WO2003041220A1 (en) * 2001-11-08 2003-05-15 Robert Bosch Gmbh Stripline antenna and method for the production thereof
US7710323B2 (en) 2003-03-06 2010-05-04 Raysat Cyprus Limited Flat mobile antenna system
WO2004079861A1 (en) * 2003-03-06 2004-09-16 Raysat Cyprus Limited Flat mobile antenna system
DE10318815A1 (en) * 2003-04-17 2004-11-04 Valeo Schalter Und Sensoren Gmbh Slot-coupled radar antenna with radiation areas
US9172145B2 (en) 2006-09-21 2015-10-27 Raytheon Company Transmit/receive daughter card with integral circulator
US8981869B2 (en) 2006-09-21 2015-03-17 Raytheon Company Radio frequency interconnect circuits and techniques
US8174450B2 (en) 2008-04-30 2012-05-08 Topcon Gps, Llc Broadband micropatch antenna system with reduced sensitivity to multipath reception
WO2009133448A3 (en) * 2008-04-30 2009-12-23 Topcon Gps Llc Broadband patch antenna system
US7859835B2 (en) 2009-03-24 2010-12-28 Allegro Microsystems, Inc. Method and apparatus for thermal management of a radio frequency system
US9019166B2 (en) 2009-06-15 2015-04-28 Raytheon Company Active electronically scanned array (AESA) card
US8508943B2 (en) 2009-10-16 2013-08-13 Raytheon Company Cooling active circuits
KR101318830B1 (en) * 2010-09-07 2013-10-17 쿤지에 쭈앙 Dual-polarized microstrip antenna
US8810448B1 (en) 2010-11-18 2014-08-19 Raytheon Company Modular architecture for scalable phased array radars
US9116222B1 (en) 2010-11-18 2015-08-25 Raytheon Company Modular architecture for scalable phased array radars
US9124361B2 (en) 2011-10-06 2015-09-01 Raytheon Company Scalable, analog monopulse network
US9397766B2 (en) 2011-10-06 2016-07-19 Raytheon Company Calibration system and technique for a scalable, analog monopulse network
US9130278B2 (en) 2012-11-26 2015-09-08 Raytheon Company Dual linear and circularly polarized patch radiator
CN110829005A (en) * 2018-08-08 2020-02-21 北京航天雷特机电工程有限公司 A microwave antenna and microwave cavity

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AU4255399A (en) 2000-01-05

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