ATE422102T1 - Planarantenne mit geschalteter strahldiversity für interferenzverminderung in einem mobilen netzwerk - Google Patents

Planarantenne mit geschalteter strahldiversity für interferenzverminderung in einem mobilen netzwerk

Info

Publication number
ATE422102T1
ATE422102T1 AT00989424T AT00989424T ATE422102T1 AT E422102 T1 ATE422102 T1 AT E422102T1 AT 00989424 T AT00989424 T AT 00989424T AT 00989424 T AT00989424 T AT 00989424T AT E422102 T1 ATE422102 T1 AT E422102T1
Authority
AT
Austria
Prior art keywords
antenna
mobile network
interference reduction
plane antenna
switched beam
Prior art date
Application number
AT00989424T
Other languages
English (en)
Inventor
Daniel Sievenpiper
Hui-Pin Hsu
Greg Tangonan
Original Assignee
Hrl Lab Llc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hrl Lab Llc filed Critical Hrl Lab Llc
Application granted granted Critical
Publication of ATE422102T1 publication Critical patent/ATE422102T1/de

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/06Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/20Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/27Adaptation for use in or on movable bodies
    • H01Q1/32Adaptation for use in or on road or rail vehicles
    • H01Q1/325Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3275Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/08Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
    • H01Q13/085Slot-line radiating ends
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/006Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/006Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces
    • H01Q15/008Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces said selective devices having Sievenpipers' mushroom elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H01Q3/242Circumferential scanning

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
AT00989424T 2000-03-15 2000-12-22 Planarantenne mit geschalteter strahldiversity für interferenzverminderung in einem mobilen netzwerk ATE422102T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/525,831 US6366254B1 (en) 2000-03-15 2000-03-15 Planar antenna with switched beam diversity for interference reduction in a mobile environment

Publications (1)

Publication Number Publication Date
ATE422102T1 true ATE422102T1 (de) 2009-02-15

Family

ID=24094772

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00989424T ATE422102T1 (de) 2000-03-15 2000-12-22 Planarantenne mit geschalteter strahldiversity für interferenzverminderung in einem mobilen netzwerk

Country Status (7)

Country Link
US (1) US6366254B1 (de)
EP (2) EP1909358A1 (de)
JP (1) JP2003527018A (de)
AT (1) ATE422102T1 (de)
AU (1) AU2001225930A1 (de)
DE (1) DE60041506D1 (de)
WO (1) WO2001069724A1 (de)

Families Citing this family (103)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6542746B1 (en) * 1998-10-09 2003-04-01 Nortel Networks Limited Frequency reuse scheme for point to multipoint radio communication
US6628242B1 (en) * 2000-08-23 2003-09-30 Innovative Technology Licensing, Llc High impedence structures for multifrequency antennas and waveguides
FR2817661A1 (fr) * 2000-12-05 2002-06-07 Thomson Multimedia Sa Dispositif pour la reception et/ou l'emission de signaux multifaisceaux
US7532170B1 (en) * 2001-01-25 2009-05-12 Raytheon Company Conformal end-fire arrays on high impedance ground plane
US6504507B2 (en) * 2001-02-09 2003-01-07 Nokia Mobile Phones Limited Antenna tuning
FR2825206A1 (fr) * 2001-05-23 2002-11-29 Thomson Licensing Sa Dispositif pour la reception et/ou l'emission d'ondes electromagnetiques a rayonnement omnidirectionnel
US6441792B1 (en) * 2001-07-13 2002-08-27 Hrl Laboratories, Llc. Low-profile, multi-antenna module, and method of integration into a vehicle
US6433756B1 (en) * 2001-07-13 2002-08-13 Hrl Laboratories, Llc. Method of providing increased low-angle radiation sensitivity in an antenna and an antenna having increased low-angle radiation sensitivity
US7276990B2 (en) * 2002-05-15 2007-10-02 Hrl Laboratories, Llc Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same
US7298228B2 (en) * 2002-05-15 2007-11-20 Hrl Laboratories, Llc Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same
US6982676B2 (en) * 2003-04-18 2006-01-03 Hrl Laboratories, Llc Plano-convex rotman lenses, an ultra wideband array employing a hybrid long slot aperture and a quasi-optic beam former
US7193575B2 (en) * 2003-04-25 2007-03-20 Qualcomm Incorporated Wideband antenna with transmission line elbow
US7068234B2 (en) * 2003-05-12 2006-06-27 Hrl Laboratories, Llc Meta-element antenna and array
US7456803B1 (en) 2003-05-12 2008-11-25 Hrl Laboratories, Llc Large aperture rectenna based on planar lens structures
US7164387B2 (en) * 2003-05-12 2007-01-16 Hrl Laboratories, Llc Compact tunable antenna
US7154451B1 (en) 2004-09-17 2006-12-26 Hrl Laboratories, Llc Large aperture rectenna based on planar lens structures
US7071888B2 (en) 2003-05-12 2006-07-04 Hrl Laboratories, Llc Steerable leaky wave antenna capable of both forward and backward radiation
US7245269B2 (en) * 2003-05-12 2007-07-17 Hrl Laboratories, Llc Adaptive beam forming antenna system using a tunable impedance surface
US7253699B2 (en) * 2003-05-12 2007-08-07 Hrl Laboratories, Llc RF MEMS switch with integrated impedance matching structure
US7002518B2 (en) * 2003-09-15 2006-02-21 Intel Corporation Low profile sector antenna configuration
US7145518B2 (en) * 2003-09-30 2006-12-05 Denso Corporation Multiple-frequency common antenna
US7397429B2 (en) * 2004-03-09 2008-07-08 Northrop Grumman Corporation Aircraft window plug antenna assembly
US7186927B2 (en) 2004-07-30 2007-03-06 Bae Systems Information And Electronic Systems Integration Inc. High frequency via with stripped semi-rigid cable
US7180009B2 (en) * 2004-07-30 2007-02-20 Bae Systems Information And Electronic Systems Inteegration Inc. Transmission line with stripped semi-rigid cable
US7193562B2 (en) 2004-11-22 2007-03-20 Ruckus Wireless, Inc. Circuit board having a peripheral antenna apparatus with selectable antenna elements
US7292198B2 (en) * 2004-08-18 2007-11-06 Ruckus Wireless, Inc. System and method for an omnidirectional planar antenna apparatus with selectable elements
US7358912B1 (en) 2005-06-24 2008-04-15 Ruckus Wireless, Inc. Coverage antenna apparatus with selectable horizontal and vertical polarization elements
US7138952B2 (en) * 2005-01-11 2006-11-21 Raytheon Company Array antenna with dual polarization and method
US7893882B2 (en) 2007-01-08 2011-02-22 Ruckus Wireless, Inc. Pattern shaping of RF emission patterns
JP4075920B2 (ja) * 2005-04-04 2008-04-16 松下電器産業株式会社 受信装置
TWI261386B (en) * 2005-10-25 2006-09-01 Tatung Co Partial reflective surface antenna
FR2894080B1 (fr) * 2005-11-28 2009-10-30 Alcatel Sa Antenne reseau a maillage irregulier et eventuelle redondance froide
US7423608B2 (en) 2005-12-20 2008-09-09 Motorola, Inc. High impedance electromagnetic surface and method
US7307589B1 (en) 2005-12-29 2007-12-11 Hrl Laboratories, Llc Large-scale adaptive surface sensor arrays
US20070159396A1 (en) * 2006-01-06 2007-07-12 Sievenpiper Daniel F Antenna structures having adjustable radiation characteristics
US7429961B2 (en) * 2006-01-06 2008-09-30 Gm Global Technology Operations, Inc. Method for fabricating antenna structures having adjustable radiation characteristics
US7372424B2 (en) * 2006-02-13 2008-05-13 Itt Manufacturing Enterprises, Inc. High power, polarization-diverse cloverleaf phased array
EP2022134B1 (de) * 2006-04-27 2017-01-18 Tyco Electronics Services GmbH Antennen, vorrichtungen und systeme auf der basis von metamaterialstrukturen
JP4131985B2 (ja) * 2006-05-25 2008-08-13 松下電器産業株式会社 可変スロットアンテナ及びその駆動方法
JP4131984B2 (ja) 2006-05-25 2008-08-13 松下電器産業株式会社 可変スロットアンテナ及びその駆動方法
US20070275664A1 (en) * 2006-05-26 2007-11-29 Signature Devices, Inc. Method and System for Improving Wireless Link Performance
KR101236226B1 (ko) * 2006-08-25 2013-02-21 레이스팬 코포레이션 메타물질 구조물에 기초된 안테나
US20080160851A1 (en) * 2006-12-27 2008-07-03 Motorola, Inc. Textiles Having a High Impedance Surface
US7855696B2 (en) * 2007-03-16 2010-12-21 Rayspan Corporation Metamaterial antenna arrays with radiation pattern shaping and beam switching
US8212739B2 (en) 2007-05-15 2012-07-03 Hrl Laboratories, Llc Multiband tunable impedance surface
TWI376838B (en) * 2007-10-11 2012-11-11 Tyco Electronics Services Gmbh Single-layer metallization and via-less metamaterial structures
TWI401840B (zh) * 2007-11-13 2013-07-11 Tyco Electronics Services Gmbh 具有多層金屬化及接觸孔的超材料
US8354975B2 (en) 2007-12-26 2013-01-15 Nec Corporation Electromagnetic band gap element, and antenna and filter using the same
US7868829B1 (en) 2008-03-21 2011-01-11 Hrl Laboratories, Llc Reflectarray
GB2461896B (en) * 2008-07-17 2013-04-24 Land Rover Uk Ltd Antenna assembly for a motor vehicle
US8547286B2 (en) * 2008-08-22 2013-10-01 Tyco Electronics Services Gmbh Metamaterial antennas for wideband operations
US8217843B2 (en) 2009-03-13 2012-07-10 Ruckus Wireless, Inc. Adjustment of radiation patterns utilizing a position sensor
US8681050B2 (en) 2010-04-02 2014-03-25 Tyco Electronics Services Gmbh Hollow cell CRLH antenna devices
US9190738B2 (en) * 2010-04-11 2015-11-17 Broadcom Corporation Projected artificial magnetic mirror
CN103222109B (zh) 2010-10-15 2017-06-06 西尔瑞特有限公司 表面散射式天线
US9466887B2 (en) 2010-11-03 2016-10-11 Hrl Laboratories, Llc Low cost, 2D, electronically-steerable, artificial-impedance-surface antenna
US8994609B2 (en) 2011-09-23 2015-03-31 Hrl Laboratories, Llc Conformal surface wave feed
US8436785B1 (en) 2010-11-03 2013-05-07 Hrl Laboratories, Llc Electrically tunable surface impedance structure with suppressed backward wave
TWI404947B (zh) * 2011-01-17 2013-08-11 Univ Nat Taiwan Science Tech 檢測裝置
US8982011B1 (en) 2011-09-23 2015-03-17 Hrl Laboratories, Llc Conformal antennas for mitigation of structural blockage
CN103036009B (zh) * 2011-09-30 2014-12-10 京信通信系统(中国)有限公司 不对称结构的双极化宽频辐射单元及阵列天线
US9647341B2 (en) 2012-01-04 2017-05-09 Commscope Technologies Llc Antenna structure for distributed antenna system
US8756668B2 (en) 2012-02-09 2014-06-17 Ruckus Wireless, Inc. Dynamic PSK for hotspots
US9634403B2 (en) 2012-02-14 2017-04-25 Ruckus Wireless, Inc. Radio frequency emission pattern shaping
US10186750B2 (en) 2012-02-14 2019-01-22 Arris Enterprises Llc Radio frequency antenna array with spacing element
US9092610B2 (en) 2012-04-04 2015-07-28 Ruckus Wireless, Inc. Key assignment for a brand
US9819228B2 (en) * 2013-03-01 2017-11-14 Qualcomm Incorporated Active and adaptive field cancellation for wireless power systems
US9385435B2 (en) 2013-03-15 2016-07-05 The Invention Science Fund I, Llc Surface scattering antenna improvements
CN103367926B (zh) * 2013-07-11 2015-04-08 东南大学 一种基于全息阻抗表面的多波束天线设计方法
US9450311B2 (en) 2013-07-24 2016-09-20 Raytheon Company Polarization dependent electromagnetic bandgap antenna and related methods
US9923271B2 (en) 2013-10-21 2018-03-20 Elwha Llc Antenna system having at least two apertures facilitating reduction of interfering signals
US9647345B2 (en) 2013-10-21 2017-05-09 Elwha Llc Antenna system facilitating reduction of interfering signals
US9323877B2 (en) * 2013-11-12 2016-04-26 Raytheon Company Beam-steered wide bandwidth electromagnetic band gap antenna
US9935375B2 (en) 2013-12-10 2018-04-03 Elwha Llc Surface scattering reflector antenna
US9871291B2 (en) 2013-12-17 2018-01-16 Elwha Llc System wirelessly transferring power to a target device over a tested transmission pathway
US9843103B2 (en) 2014-03-26 2017-12-12 Elwha Llc Methods and apparatus for controlling a surface scattering antenna array
US9448305B2 (en) 2014-03-26 2016-09-20 Elwha Llc Surface scattering antenna array
TWI536660B (zh) 2014-04-23 2016-06-01 財團法人工業技術研究院 通訊裝置及其多天線系統設計之方法
US9711852B2 (en) 2014-06-20 2017-07-18 The Invention Science Fund I Llc Modulation patterns for surface scattering antennas
US9882288B2 (en) 2014-05-02 2018-01-30 The Invention Science Fund I Llc Slotted surface scattering antennas
US9853361B2 (en) 2014-05-02 2017-12-26 The Invention Science Fund I Llc Surface scattering antennas with lumped elements
US10446903B2 (en) 2014-05-02 2019-10-15 The Invention Science Fund I, Llc Curved surface scattering antennas
KR102172187B1 (ko) * 2014-08-22 2020-10-30 주식회사 케이엠더블유 이동통신 서비스용 옴니 안테나
US10249953B2 (en) 2015-11-10 2019-04-02 Raytheon Company Directive fixed beam ramp EBG antenna
CN108885365B (zh) * 2016-02-05 2021-07-23 新加坡科技研究局 控制电磁波的设备和装置及其形成和操作的方法
KR101804683B1 (ko) * 2016-06-20 2017-12-05 울산과학기술원 무선 전력 전송 시스템 및 통신 시스템
US10389015B1 (en) * 2016-07-14 2019-08-20 Mano D. Judd Dual polarization antenna
US10020590B2 (en) 2016-07-19 2018-07-10 Toyota Motor Engineering & Manufacturing North America, Inc. Grid bracket structure for mm-wave end-fire antenna array
US10333209B2 (en) 2016-07-19 2019-06-25 Toyota Motor Engineering & Manufacturing North America, Inc. Compact volume scan end-fire radar for vehicle applications
JP6742666B2 (ja) * 2016-08-17 2020-08-19 日本アンテナ株式会社 平面アンテナ
US10141636B2 (en) 2016-09-28 2018-11-27 Toyota Motor Engineering & Manufacturing North America, Inc. Volumetric scan automotive radar with end-fire antenna on partially laminated multi-layer PCB
US9917355B1 (en) 2016-10-06 2018-03-13 Toyota Motor Engineering & Manufacturing North America, Inc. Wide field of view volumetric scan automotive radar with end-fire antenna
US10361481B2 (en) 2016-10-31 2019-07-23 The Invention Science Fund I, Llc Surface scattering antennas with frequency shifting for mutual coupling mitigation
US10401491B2 (en) 2016-11-15 2019-09-03 Toyota Motor Engineering & Manufacturing North America, Inc. Compact multi range automotive radar assembly with end-fire antennas on both sides of a printed circuit board
WO2018143627A1 (en) * 2017-01-31 2018-08-09 Samsung Electronics Co., Ltd. High-frequency signal transmission/reception device
US10585187B2 (en) 2017-02-24 2020-03-10 Toyota Motor Engineering & Manufacturing North America, Inc. Automotive radar with end-fire antenna fed by an optically generated signal transmitted through a fiber splitter to enhance a field of view
JP6498241B2 (ja) * 2017-07-12 2019-04-10 ソフトバンク株式会社 無線通信装置及び移動体
EP4133552A4 (de) * 2020-05-09 2023-06-07 Huawei Technologies Co., Ltd. Antenne für ein drahtloses kommunikationsgerät und ein solches gerät
CN112039607B (zh) * 2020-08-24 2023-04-18 深圳市亿联无限科技有限公司 一种WiFi产品性能测试设备及方法
CN113690593B (zh) 2021-08-27 2022-04-01 北京星英联微波科技有限责任公司 高增益低剖面圆极化天线
US12130507B1 (en) * 2023-05-31 2024-10-29 Hrl Laboratories, Llc Electrically-reconfigurable optical device structures with phase change materials
TWI886631B (zh) * 2023-11-08 2025-06-11 國立中正大學 具可重構反射陣列結構之系統
US20250233314A1 (en) * 2024-01-17 2025-07-17 Cubtek Inc. Radar antenna with director

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209791A (en) * 1978-10-05 1980-06-24 Anaren Microwave, Incorporated Antenna apparatus for bearing angle determination
US4370659A (en) 1981-07-20 1983-01-25 Sperry Corporation Antenna
DE3686547T2 (de) * 1985-10-28 1993-03-25 Sumitomo Chemical Co Herstellung von harnstoff-polyaminharzen fuer papierbekleidungszusammensetzungen.
US4782346A (en) * 1986-03-11 1988-11-01 General Electric Company Finline antennas
US4905014A (en) 1988-04-05 1990-02-27 Malibu Research Associates, Inc. Microwave phasing structures for electromagnetically emulating reflective surfaces and focusing elements of selected geometry
US5070340A (en) 1989-07-06 1991-12-03 Ball Corporation Broadband microstrip-fed antenna
CA2049597A1 (en) 1990-09-28 1992-03-29 Clifton Quan Dielectric flare notch radiator with separate transmit and receive ports
US5519408A (en) 1991-01-22 1996-05-21 Us Air Force Tapered notch antenna using coplanar waveguide
US5220330A (en) * 1991-11-04 1993-06-15 Hughes Aircraft Company Broadband conformal inclined slotline antenna array
FR2709833B1 (fr) * 1993-09-07 1995-10-20 Alcatel Espace Instrument d'écoute large bande et bande basse pour applications spatiales.
US5541614A (en) 1995-04-04 1996-07-30 Hughes Aircraft Company Smart antenna system using microelectromechanically tunable dipole antennas and photonic bandgap materials
US5557291A (en) * 1995-05-25 1996-09-17 Hughes Aircraft Company Multiband, phased-array antenna with interleaved tapered-element and waveguide radiators
US6008770A (en) 1996-06-24 1999-12-28 Ricoh Company, Ltd. Planar antenna and antenna array
US5905465A (en) 1997-04-23 1999-05-18 Ball Aerospace & Technologies Corp. Antenna system
US6021317A (en) * 1997-04-30 2000-02-01 Ericsson Inc. Dual antenna radiotelephone systems including an antenna-management matrix switch and associated methods of operation
US5894288A (en) * 1997-08-08 1999-04-13 Raytheon Company Wideband end-fire array
US5874915A (en) * 1997-08-08 1999-02-23 Raytheon Company Wideband cylindrical UHF array
GB2328748B (en) * 1997-08-30 2002-02-20 Ford Motor Co Improvements in sensor assemblies for automotive collision warning systems
US5945951A (en) * 1997-09-03 1999-08-31 Andrew Corporation High isolation dual polarized antenna system with microstrip-fed aperture coupled patches
US5923303A (en) 1997-12-24 1999-07-13 U S West, Inc. Combined space and polarization diversity antennas
US6262495B1 (en) 1998-03-30 2001-07-17 The Regents Of The University Of California Circuit and method for eliminating surface currents on metals
US6097343A (en) * 1998-10-23 2000-08-01 Trw Inc. Conformal load-bearing antenna system that excites aircraft structure
FR2785476A1 (fr) * 1998-11-04 2000-05-05 Thomson Multimedia Sa Dispositif de reception de signaux multi-faisceaux
US6441792B1 (en) * 2001-07-13 2002-08-27 Hrl Laboratories, Llc. Low-profile, multi-antenna module, and method of integration into a vehicle

Also Published As

Publication number Publication date
EP1287588A1 (de) 2003-03-05
WO2001069724A1 (en) 2001-09-20
AU2001225930A1 (en) 2001-09-24
DE60041506D1 (de) 2009-03-19
EP1287588B1 (de) 2009-01-28
US6366254B1 (en) 2002-04-02
JP2003527018A (ja) 2003-09-09
EP1909358A1 (de) 2008-04-09

Similar Documents

Publication Publication Date Title
ATE422102T1 (de) Planarantenne mit geschalteter strahldiversity für interferenzverminderung in einem mobilen netzwerk
US8059031B2 (en) Beam switching antenna system and method and apparatus for controlling the same
FI963773A0 (fi) Solukkotukiasema, jossa vaiheistettu antenniryhmä ja siihen liittyvät menetelmät tehohyötysuhteen parantamiseksi
TW200513061A (en) Antenna steering for an access point based upon spatial diversity
DE602005018196D1 (de) Mit einer intelligenten antenne in einem wlan operierender zugangspunkt und assoziierte verfahren
AU1080301A (en) Base station beam sweeping method and apparatus using multiple rotating antennas
AU2001230764A1 (en) Vivaldi cloverleaf antenna
WO2002011239A3 (en) Method and apparatus relating to high impedance surface
WO2001073892A3 (en) An end-fire antenna or array on surface with tunable impedance
WO2002078372A3 (en) Wireless communications with an adaptive antenna array
GB2385994B (en) A textured surface having high electromagnetic impedance in multiple frequency bands
WO2004023665A3 (en) Vertical dynamic beam-forming
SE9700536L (sv) Mikrostripantenn samt gruppantenn
WO2001063776A3 (en) Transmitting beam forming in smart antenna array systems
DE60226758D1 (de) Zellularfernsprechsystem mit einer freiraum-millimeterwellen-bündelleitung
CA2476558A1 (en) Beamforming using a backplane and passive antenna element
DE60115390D1 (de) Rundfunkempfänger mit Antennen- und Frequenzdiversität
FI20185840A1 (fi) Rakennustarvike
CN1853315A (zh) 波束切换天线系统和用于控制该系统的方法及设备
WO2004062028A3 (en) E-plane omni-directional antenna
US20050219121A1 (en) Smart antenna system with switched beams
WO2005034284A3 (en) Broadband tunable antenna and transceiver systems
SE9903943D0 (sv) Antenna device and method for transmitting and receiving radio waves
AU2001287768A1 (en) Method of generating directional antenna beams, and radio transmitter
Hassouna et al. Indoor field trials for ris-aided wireless communications

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties