TWI319924B - Rfid tag wide bandwidth logarithmic spiral antenna method and system - Google Patents

Rfid tag wide bandwidth logarithmic spiral antenna method and system

Info

Publication number
TWI319924B
TWI319924B TW092125882A TW92125882A TWI319924B TW I319924 B TWI319924 B TW I319924B TW 092125882 A TW092125882 A TW 092125882A TW 92125882 A TW92125882 A TW 92125882A TW I319924 B TWI319924 B TW I319924B
Authority
TW
Taiwan
Prior art keywords
rfid tag
wide bandwidth
spiral antenna
logarithmic spiral
antenna method
Prior art date
Application number
TW092125882A
Other languages
English (en)
Other versions
TW200405614A (en
Inventor
Philip C Zuk
Raymond A Roberts
John V Vogt
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 filed Critical
Publication of TW200405614A publication Critical patent/TW200405614A/zh
Application granted granted Critical
Publication of TWI319924B publication Critical patent/TWI319924B/zh

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/10—Logperiodic antennas
    • 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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H01Q9/27—Spiral antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Aerials (AREA)
  • Near-Field Transmission Systems (AREA)
  • Support Of Aerials (AREA)
  • Parts Printed On Printed Circuit Boards (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
TW092125882A 2002-09-20 2003-09-19 Rfid tag wide bandwidth logarithmic spiral antenna method and system TWI319924B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41252602P 2002-09-20 2002-09-20

Publications (2)

Publication Number Publication Date
TW200405614A TW200405614A (en) 2004-04-01
TWI319924B true TWI319924B (en) 2010-01-21

Family

ID=32030899

Family Applications (1)

Application Number Title Priority Date Filing Date
TW092125882A TWI319924B (en) 2002-09-20 2003-09-19 Rfid tag wide bandwidth logarithmic spiral antenna method and system

Country Status (8)

Country Link
US (1) US6963317B2 (zh)
JP (1) JP4267574B2 (zh)
KR (1) KR101148268B1 (zh)
CN (2) CN1809948A (zh)
AU (1) AU2003272420A1 (zh)
DE (1) DE10393263T5 (zh)
TW (1) TWI319924B (zh)
WO (1) WO2004027681A2 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI495193B (zh) * 2011-09-16 2015-08-01 Univ Nat Cheng Kung 微型植入式天線

Families Citing this family (132)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE329327T1 (de) * 2001-11-21 2006-06-15 Mineral Lassen Llc Drahtgebundene schnittstelle zu einem drahtlosen kommunikationsgerät
CN100455251C (zh) 2004-05-14 2009-01-28 奥林巴斯株式会社 插入装置
US7549591B2 (en) * 2004-06-28 2009-06-23 International Barcode Corporation Combined multi-frequency electromagnetic and optical communication system
US7284704B2 (en) * 2004-06-28 2007-10-23 International Barcode Corporation Combined electromagnetic and optical communication system
US7202790B2 (en) * 2004-08-13 2007-04-10 Sensormatic Electronics Corporation Techniques for tuning an antenna to different operating frequencies
JP4333555B2 (ja) * 2004-10-27 2009-09-16 富士通株式会社 Ｒｆｉｄタグ
US8228194B2 (en) * 2004-10-28 2012-07-24 University Of Pittsburgh - Of The Commonwealth System Of Higher Education Recharging apparatus
US20060220855A1 (en) * 2005-03-18 2006-10-05 Hartmann Clinton S Tamper indicating saw tag system and method for using same
US7830257B2 (en) 2005-04-22 2010-11-09 The Board Of Regents Of The University Of Oklahoma Long-range cattle identification system
FI119668B (fi) * 2005-05-12 2009-01-30 Valtion Teknillinen Antennirakenne esimerkiksi etätunnistinjärjestelmää varten
JP2007013757A (ja) * 2005-07-01 2007-01-18 Nec Tokin Corp 無線タグおよび無線タグを用いた無線通信システム
US7648065B2 (en) * 2005-08-31 2010-01-19 The Stanley Works Storage cabinet with improved RFID antenna system
US7728728B2 (en) 2005-09-28 2010-06-01 International Business Machines Corporation Method and systems for collecting user's choices using RFIDs
CN100500525C (zh) * 2005-10-19 2009-06-17 李树群 一次性无源射频电子锁具
US20070103308A1 (en) * 2005-10-31 2007-05-10 Wha Yu Industrial Co., Ltd. Antenna structure for the radio frequency identification tag
KR100721057B1 (ko) * 2005-11-03 2007-05-22 한국전자통신연구원 무선주파수 식별 태그를 위한 전압체배기
US20070115130A1 (en) * 2005-11-14 2007-05-24 Ronald Eveland Multi-dimensional, broadband track and trace sensor radio frequency identification device
US20070229264A1 (en) * 2005-11-14 2007-10-04 Ronald Eveland Software method and system for encapsulation of RFID data into a standardized globally routable format
US20070262866A1 (en) * 2005-11-14 2007-11-15 Ronald Eveland Multi-Dimensional Broadband Track and Trace Sensor Radio Frequency Identification Device
WO2007070571A2 (en) * 2005-12-14 2007-06-21 The University Of Kansas Microstrip antenna for rfid device
US8564439B2 (en) 2010-05-27 2013-10-22 The University Of Kansas Microstrip antenna for RFID device
US7705733B2 (en) * 2006-01-06 2010-04-27 Warsaw Orthopedic, Inc. Coiled RFID tag
US7519328B2 (en) 2006-01-19 2009-04-14 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
DE102006003717A1 (de) * 2006-01-26 2007-08-09 Atmel Germany Gmbh Antenne für einen rückstreubasierten RFID-Transponder
US7692546B2 (en) 2006-01-26 2010-04-06 Atmel Automotive Gmbh Antenna for a backscatter-based RFID transponder
CN2915758Y (zh) * 2006-02-21 2007-06-27 硕学电子科技(上海)有限公司 Uhf全向无源电子货柜锁
US9064198B2 (en) 2006-04-26 2015-06-23 Murata Manufacturing Co., Ltd. Electromagnetic-coupling-module-attached article
US8461992B2 (en) * 2006-05-12 2013-06-11 Solstice Medical, Llc RFID coupler for metallic implements
US8462062B2 (en) * 2006-05-12 2013-06-11 Solstice Medical, Llc RF passive repeater for a metal container
US20070279225A1 (en) * 2006-05-30 2007-12-06 Stefano Pellerano Non-backscatter passive RFID
WO2008001561A1 (fr) 2006-06-30 2008-01-03 Murata Manufacturing Co., Ltd. Disque optique
JP4775442B2 (ja) 2006-09-26 2011-09-21 株式会社村田製作所 電磁結合モジュール付き物品
CA2563634A1 (en) 2006-10-12 2008-04-12 Ibm Canada Limited - Ibm Canada Limitee System and method for providing security using rfid
DE102006055744A1 (de) 2006-11-25 2008-05-29 Atmel Germany Gmbh Antenne für einen rückstreubasierten RFID-Transponder
DE102006058168B4 (de) * 2006-12-09 2021-05-27 Atmel Corp. Antenne für einen rückstreubasierten RFID-Transponder
CN101262089B (zh) * 2007-03-06 2012-10-17 深圳市大富网络技术有限公司 一种rfid读写器天线
WO2008126649A1 (ja) 2007-04-09 2008-10-23 Murata Manufacturing Co., Ltd. 無線ｉｃデバイス
US8235299B2 (en) 2007-07-04 2012-08-07 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
WO2008136226A1 (ja) 2007-04-26 2008-11-13 Murata Manufacturing Co., Ltd. 無線ｉｃデバイス
JP4666102B2 (ja) 2007-05-11 2011-04-06 株式会社村田製作所 無線ｉｃデバイス
WO2009008296A1 (ja) 2007-07-09 2009-01-15 Murata Manufacturing Co., Ltd. 無線ｉｃデバイス
CN104540317B (zh) 2007-07-17 2018-11-02 株式会社村田制作所 印制布线基板
EP2568419B1 (en) 2007-07-18 2015-02-25 Murata Manufacturing Co., Ltd. Apparatus comprising an RFID device
US20090021352A1 (en) 2007-07-18 2009-01-22 Murata Manufacturing Co., Ltd. Radio frequency ic device and electronic apparatus
JP4434311B2 (ja) 2007-07-18 2010-03-17 株式会社村田製作所 無線ｉｃデバイスおよびその製造方法
KR101006808B1 (ko) * 2007-07-18 2011-01-10 가부시키가이샤 무라타 세이사쿠쇼 무선 ｉｃ 디바이스
JP2010539887A (ja) * 2007-09-19 2010-12-16 クゥアルコム・インコーポレイテッド 無線電力磁気共振器から生じた電力を最大化すること
US8289163B2 (en) * 2007-09-27 2012-10-16 3M Innovative Properties Company Signal line structure for a radio-frequency identification system
US20090085750A1 (en) * 2007-09-27 2009-04-02 3M Innovative Properties Company Extended RFID tag
US8717244B2 (en) * 2007-10-11 2014-05-06 3M Innovative Properties Company RFID tag with a modified dipole antenna
EP2198397B1 (en) * 2007-10-12 2012-08-29 Solstice Medical, Llc. Small gamma shielded shorted patch rfid tag
ATE555518T1 (de) 2007-12-20 2012-05-15 Murata Manufacturing Co Ic-radiogerät
EP2207240B1 (en) 2007-12-26 2013-08-21 Murata Manufacturing Co., Ltd. Antenna apparatus and wireless ic device
US7982616B2 (en) * 2008-02-14 2011-07-19 3M Innovative Properties Company Radio frequency identification (RFID) tag including a three-dimensional loop antenna
JP5267463B2 (ja) 2008-03-03 2013-08-21 株式会社村田製作所 無線ｉｃデバイス及び無線通信システム
WO2009110382A1 (ja) 2008-03-03 2009-09-11 株式会社村田製作所 複合アンテナ
CN101960665B (zh) 2008-03-26 2014-03-26 株式会社村田制作所 无线ic器件
CN101953025A (zh) 2008-04-14 2011-01-19 株式会社村田制作所 无线ic器件、电子设备以及无线ic器件的谐振频率调整方法
KR100958959B1 (ko) 2008-04-29 2010-05-20 엘에스엠트론 주식회사 종단 급전 평면형 스파이럴 안테나
EP2840648B1 (en) 2008-05-21 2016-03-23 Murata Manufacturing Co., Ltd. Wireless IC device
WO2009142068A1 (ja) 2008-05-22 2009-11-26 株式会社村田製作所 無線ｉｃデバイス及びその製造方法
CN104077622B (zh) 2008-05-26 2016-07-06 株式会社村田制作所 无线ic器件系统及无线ic器件的真伪判定方法
KR101148534B1 (ko) 2008-05-28 2012-05-21 가부시키가이샤 무라타 세이사쿠쇼 무선 ｉｃ 디바이스용 부품 및 무선 ｉｃ 디바이스
JP4557186B2 (ja) 2008-06-25 2010-10-06 株式会社村田製作所 無線ｉｃデバイスとその製造方法
DE102008031751B3 (de) * 2008-07-04 2009-08-06 Batop Gmbh Photoleitende Antenne zur Abstrahlung oder zum Empfang von Terahertz-Strahlung
EP2306586B1 (en) 2008-07-04 2014-04-02 Murata Manufacturing Co. Ltd. Wireless ic device
KR101029722B1 (ko) * 2008-07-11 2011-04-18 주식회사 이엠따블유 근접장 ｒｆｉｄ 에 적용가능한 스파이럴 형태의 안테나
WO2010021217A1 (ja) 2008-08-19 2010-02-25 株式会社村田製作所 無線ｉｃデバイス及びその製造方法
CA2732235C (en) * 2008-08-29 2017-03-28 Logomotion, S.R.O. Removable card for a contactless communication, its utilization and the method of production
JP5429182B2 (ja) 2008-10-24 2014-02-26 株式会社村田製作所 無線ｉｃデバイス
CN102197537B (zh) 2008-10-29 2014-06-18 株式会社村田制作所 无线ic器件
CN102187518B (zh) 2008-11-17 2014-12-10 株式会社村田制作所 天线及无线ic器件
JP5041075B2 (ja) 2009-01-09 2012-10-03 株式会社村田製作所 無線ｉｃデバイスおよび無線ｉｃモジュール
DE112009003613B4 (de) 2009-01-16 2020-12-17 Murata Manufacturing Co., Ltd. Ic-bauelement
CN102301528B (zh) 2009-01-30 2015-01-28 株式会社村田制作所 天线及无线ic器件
WO2010119854A1 (ja) 2009-04-14 2010-10-21 株式会社村田製作所 無線ｉｃデバイス用部品及び無線ｉｃデバイス
JP4687832B2 (ja) 2009-04-21 2011-05-25 株式会社村田製作所 アンテナ装置
CN102449846B (zh) 2009-06-03 2015-02-04 株式会社村田制作所 无线ic器件及其制造方法
JP5516580B2 (ja) 2009-06-19 2014-06-11 株式会社村田製作所 無線ｉｃデバイス及び給電回路と放射板との結合方法
US8106849B2 (en) * 2009-08-28 2012-01-31 SVR Inventions, Inc. Planar antenna array and article of manufacture using same
JP5182431B2 (ja) 2009-09-28 2013-04-17 株式会社村田製作所 無線ｉｃデバイスおよびそれを用いた環境状態検出方法
WO2011040393A1 (ja) 2009-09-30 2011-04-07 株式会社村田製作所 回路基板及びその製造方法
JP5304580B2 (ja) 2009-10-02 2013-10-02 株式会社村田製作所 無線ｉｃデバイス
WO2011045970A1 (ja) 2009-10-16 2011-04-21 株式会社村田製作所 アンテナ及び無線ｉｃデバイス
CN102598413A (zh) 2009-10-27 2012-07-18 株式会社村田制作所 收发装置及无线标签读取装置
WO2011055703A1 (ja) 2009-11-04 2011-05-12 株式会社村田製作所 通信端末及び情報処理システム
WO2011055701A1 (ja) 2009-11-04 2011-05-12 株式会社村田製作所 通信端末及び情報処理システム
EP2498207B1 (en) 2009-11-04 2014-12-31 Murata Manufacturing Co., Ltd. Wireless ic tag, reader/writer, and information processing system
KR101318707B1 (ko) 2009-11-20 2013-10-17 가부시키가이샤 무라타 세이사쿠쇼 안테나 장치 및 이동체 통신 단말
CN102687338B (zh) 2009-12-24 2015-05-27 株式会社村田制作所 天线及便携终端
JP5403146B2 (ja) 2010-03-03 2014-01-29 株式会社村田製作所 無線通信デバイス及び無線通信端末
CN102792520B (zh) 2010-03-03 2017-08-25 株式会社村田制作所 无线通信模块以及无线通信设备
CN102576940B (zh) 2010-03-12 2016-05-04 株式会社村田制作所 无线通信器件及金属制物品
WO2011118379A1 (ja) 2010-03-24 2011-09-29 株式会社村田製作所 Ｒｆｉｄシステム
JP5630499B2 (ja) 2010-03-31 2014-11-26 株式会社村田製作所 アンテナ装置及び無線通信デバイス
JP5299351B2 (ja) 2010-05-14 2013-09-25 株式会社村田製作所 無線ｉｃデバイス
JP5170156B2 (ja) 2010-05-14 2013-03-27 株式会社村田製作所 無線ｉｃデバイス
WO2012005278A1 (ja) 2010-07-08 2012-01-12 株式会社村田製作所 アンテナ及びｒｆｉｄデバイス
CN104752813B (zh) 2010-07-28 2018-03-02 株式会社村田制作所 天线装置及通信终端设备
JP5423897B2 (ja) 2010-08-10 2014-02-19 株式会社村田製作所 プリント配線板及び無線通信システム
JP5234071B2 (ja) 2010-09-03 2013-07-10 株式会社村田製作所 Ｒｆｉｃモジュール
CN103038939B (zh) 2010-09-30 2015-11-25 株式会社村田制作所 无线ic器件
WO2012050037A1 (ja) 2010-10-12 2012-04-19 株式会社村田製作所 アンテナ装置および通信端末装置
WO2012053412A1 (ja) 2010-10-21 2012-04-26 株式会社村田製作所 通信端末装置
US8593156B2 (en) * 2010-11-22 2013-11-26 General Electric Company Sensor assembly and microwave emitter for use in a sensor assembly
JP5510560B2 (ja) 2011-01-05 2014-06-04 株式会社村田製作所 無線通信デバイス
WO2012096365A1 (ja) 2011-01-14 2012-07-19 株式会社村田製作所 Ｒｆｉｄチップパッケージ及びｒｆｉｄタグ
WO2012117843A1 (ja) 2011-02-28 2012-09-07 株式会社村田製作所 無線通信デバイス
WO2012121185A1 (ja) 2011-03-08 2012-09-13 株式会社村田製作所 アンテナ装置及び通信端末機器
WO2012137717A1 (ja) 2011-04-05 2012-10-11 株式会社村田製作所 無線通信デバイス
WO2012141070A1 (ja) 2011-04-13 2012-10-18 株式会社村田製作所 無線ｉｃデバイス及び無線通信端末
JP5569648B2 (ja) 2011-05-16 2014-08-13 株式会社村田製作所 無線ｉｃデバイス
EP3041087B1 (en) 2011-07-14 2022-09-07 Murata Manufacturing Co., Ltd. Wireless communication device
WO2013011856A1 (ja) 2011-07-15 2013-01-24 株式会社村田製作所 無線通信デバイス
JP5660217B2 (ja) 2011-07-19 2015-01-28 株式会社村田製作所 アンテナ装置、ｒｆｉｄタグおよび通信端末装置
WO2013035821A1 (ja) 2011-09-09 2013-03-14 株式会社村田製作所 アンテナ装置および無線デバイス
WO2013080991A1 (ja) 2011-12-01 2013-06-06 株式会社村田製作所 無線ｉｃデバイス及びその製造方法
JP5354137B1 (ja) 2012-01-30 2013-11-27 株式会社村田製作所 無線ｉｃデバイス
JP5464307B2 (ja) 2012-02-24 2014-04-09 株式会社村田製作所 アンテナ装置および無線通信装置
CN104487985B (zh) 2012-04-13 2020-06-26 株式会社村田制作所 Rfid标签的检查方法及检查装置
CN103208023A (zh) * 2013-02-06 2013-07-17 浙江省公安厅 一种面向车辆标识的无源超高频射频识别电子标签结构
CN103473427B (zh) * 2013-09-24 2016-06-15 上海无线电设备研究所 一种应用于标签天线设计的复阻抗匹配方法
JP6180548B2 (ja) * 2013-12-26 2017-08-16 三菱電機エンジニアリング株式会社 高周波電源用整流回路
CN103872450A (zh) * 2014-03-19 2014-06-18 安徽省广播电视科研所 薄膜型数字电视接收天线
WO2016053951A1 (en) * 2014-10-01 2016-04-07 Ohio State Innovation Foundation Stretchable broad impedance bandwidth rfid devices
CN105161847B (zh) * 2015-08-19 2018-08-10 桂林电子科技大学 宽带高增益圆极化天线
US10204298B2 (en) 2016-05-27 2019-02-12 Berntsen International UHF RFID tag for marking underground assets and locations and method of using same
JP6570482B2 (ja) * 2016-06-21 2019-09-04 日精株式会社 基板型アンテナ
SE540981C2 (en) * 2017-06-29 2019-02-12 Recco Invest Ab A harmonic radar reflector
US11011815B2 (en) * 2018-04-25 2021-05-18 Texas Instruments Incorporated Circularly-polarized dielectric waveguide launch for millimeter-wave data communication
US11728572B1 (en) * 2019-12-11 2023-08-15 Raytheon Company Twistarray reflector for axisymmetric incident fields
SE544347C2 (en) * 2020-10-13 2022-04-12 Stora Enso Oyj RFID reader antenna for use in an intelligent cabinet

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070492B1 (de) * 1981-07-20 1987-01-28 Henkel Kommanditgesellschaft auf Aktien Verfahren zur Herstellung von Fettsäurealkylestern mit verbesserter Verarbeitbarkeit
CN86201859U (zh) * 1986-04-03 1987-09-16 天津市无线电元件十三厂 对数平面螺旋电视接收天线
US5313216A (en) 1991-05-03 1994-05-17 Georgia Tech Research Corporation Multioctave microstrip antenna
US5621422A (en) * 1994-08-22 1997-04-15 Wang-Tripp Corporation Spiral-mode microstrip (SMM) antennas and associated methods for exciting, extracting and multiplexing the various spiral modes
US6281794B1 (en) * 1998-01-02 2001-08-28 Intermec Ip Corp. Radio frequency transponder with improved read distance
US6359444B1 (en) * 1999-05-28 2002-03-19 University Of Kentucky Research Foundation Remote resonant-circuit analyte sensing apparatus with sensing structure and associated method of sensing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI495193B (zh) * 2011-09-16 2015-08-01 Univ Nat Cheng Kung 微型植入式天線

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AU2003272420A8 (en) 2004-04-08
JP4267574B2 (ja) 2009-05-27
KR101148268B1 (ko) 2012-05-21
TW200405614A (en) 2004-04-01
DE10393263T5 (de) 2005-09-15
AU2003272420A1 (en) 2004-04-08
WO2004027681A2 (en) 2004-04-01
CN1809948A (zh) 2006-07-26
KR20050057464A (ko) 2005-06-16
WO2004027681A3 (en) 2006-02-23
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US20040056823A1 (en) 2004-03-25

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