WO2010106396A1 - Antenne réseau à commande de phase microruban - Google Patents

Antenne réseau à commande de phase microruban Download PDF

Info

Publication number
WO2010106396A1
WO2010106396A1 PCT/IB2009/051063 IB2009051063W WO2010106396A1 WO 2010106396 A1 WO2010106396 A1 WO 2010106396A1 IB 2009051063 W IB2009051063 W IB 2009051063W WO 2010106396 A1 WO2010106396 A1 WO 2010106396A1
Authority
WO
WIPO (PCT)
Prior art keywords
phased array
array antenna
antenna
microstrip
base element
Prior art date
Application number
PCT/IB2009/051063
Other languages
English (en)
Inventor
Ibrahim Tekin
Mehmet Abbak
Original Assignee
Sabanci Universitesi
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 Sabanci Universitesi filed Critical Sabanci Universitesi
Priority to PCT/IB2009/051063 priority Critical patent/WO2010106396A1/fr
Publication of WO2010106396A1 publication Critical patent/WO2010106396A1/fr

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements 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 relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements 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 relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements 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 relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements 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 relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H01Q3/36—Arrangements 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 relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with variable phase-shifters
    • 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 a microstrip phased array antenna wherein the radiation pattern can be shifted in certain time intervals at different angles.
  • RFID systems have started to occupy a greater space in daily life as time goes by, by easing the living conditions and accelerating life.
  • Today, the said systems are used in many different areas such as production processes and warehouse tracking, security cards and entry - exit systems, retailing sector security and sales systems.
  • RFID systems differ from each other in terms of operation frequency and power supply. They are divided into four groups in terms of frequency, namely low frequency (125 KHz), high frequency (13.56 MHz), ultra high frequency (867 MHz) and microwave (2.45 GHz); and into three groups in terms of power supply, namely active, semi-active and passive.
  • One of the RFID systems used is the passive UHF RFID systems defined by ETSI for the 1st region in between 865.7 MHz and 867.7 MHz.
  • the greatest advantage of using passive systems is that RFID tags have low costs and they can be produced easily. Additionally, due to their slim form made of paper, the tags can be conveniently attached on the element that is desired to be monitored. However, the said passive systems have a much smaller operation distance and thus a lower coverage compared to the active systems. For this reason, areas of use of passive systems are restricted despite the above described advantages thereof.
  • the operation distance of passive RFID tag is determined by the power provided to the integrated circuit located in the tag antenna.
  • the power operating the integrated circuit should be increased. The said power depends on the power sent and the transceiver antenna gains.
  • Passive bi-static systems accommodate two transceiver antennas in the RFID reader part. Change in the reader circuit structure indirectly impacts on the coverage of the RFID system. If a reader has two antennas, such a system operating with passive tags because the communication from the tag to the reader is completely based on retroreflection can be compared to a radar system.
  • the International patent document no. WO9610276 discloses small microstrip antennas used in electronic devices.
  • the radiating patches which are among the antenna elements, are aligned in a 2*2 array such that all of them are oriented in the same direction. As shown in the figures, the radiating patches are square or rectangular.
  • Each of the said patches receives the energy required for its operation via a microstrip feed line from a power source located off the antenna. Additionally, it is mentioned in the said document that the patches can operate and can be energized in different phases.
  • the Unites States patent document no. US5661494 discloses a microstrip antenna.
  • the radiating elements located in the said antenna are aligned in a square or rectangular shape and have two feed points. Furthermore, the elements provided in the said document can also operate in different phases.
  • microstrip antennas employed in the above mentioned International patent document no. WO9610276 and the United States patent, document no. US5661494, obtain fixed beams by using a fixed microstrip feeding structure. For this reason, the overall coverage areas of this type of antennas decreases although they attain gain in a certain direction. Besides, since phase shifting is not defined in the said array antennas with fixed beams for time intervals, these antennas can not provide sufficient information regarding the direction and place of the RFID tags.
  • the Unites States patent document no. US4933680 discloses an antenna system.
  • the system comprises antenna arrays having an antenna elements array located on the microstrip dielectric layer.
  • Each antenna element is comprised of various subassembly elements. These elements are as follows: a phase shifter connected to the input terminal of the antenna element, a power divider connected to a transceiver, a read-only memory which stores the commands coming to the phase shifters for realizing transmission of a radiation beam by the antenna.
  • Also provided in the transceiver are the memory and a beam selector wherein commands are transmitted to the phase shifter for transmitting a beam in a specific direction. The beam can be shifted to different directions by performing different phase shifting from various phase shifters.
  • the objective of the present invention is to realize a microstrip phased array antenna which enables to extend the coverage while increasing the operation distance.
  • Another objective of the present invention is to realize a microslrip phased array antenna which enables obtaining information about the position and movement direction of the tag within the RFID system.
  • a microstrip phased array antenna realized to fulfill the objective of the present invention is illustrated in the accompanying figure, in which,
  • Figure 1 is a schematic view of a microstrip phased array antenna.
  • a microstrip phased array antenna (1) of the invention comprises
  • the inventive microslrip phased array antenna (1 ) is for extending the range and coverage of the UHF RFID systems and it has an operation frequency of 867 MHz (GEN 2 Protocol).
  • the dielectric constant of the base element (2) located in the microstrip phased array antenna (1) is 4.5 and the height thereof is 1.575 millimeters.
  • the last status of the radiation pattern of the inventive microstrip phased array antenna (1) can be found by knowing the array factor. This is because the radiation pattern of the array antenna (1) equals to the radiation pattern of a single antenna element (3) multiplied by the array factor.
  • the array factor changes with the phase difference and shapes the pattern of a single antenna element (3) in a different desired way.
  • the array factor depends on the distance between the antenna elements (3), the total number of antenna elements (3), feeding current phase difference and feeding power magnitude and the operation frequency.
  • the distance between the antenna elements (3) in the inventive microstrip phased array antenna (1) is 0.4 ⁇ in the x direction and 0.3 ⁇ in the y direction. Furthermore, in order for the radiation direction between the arms in the x direction located at the array antenna (1) to be directed ⁇ 30 degrees, the phase difference should be ⁇ 120 degrees.
  • the main radiation beam is shifted to two different points by means of the phase shifter (5) provided in the inventive microstrip phased array antenna (1). This way, upon the radiation pattern of the array antenna (1) obtaining two different radiation beams, the coverage and the operation distance increase.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

La présente invention porte sur une antenne réseau à commande de phase microruban (1) pour étendre la portée et la couverture de systèmes RFID UHF, qui a une fréquence de fonctionnement de 867 MHz (Protocole GEN 2) et comprend au moins quatre éléments d'antenne (3), au moins trois diviseurs de puissance (4), au moins un déphaseur (5) et au moins un élément de base (2) sur lequel lesdits éléments (3, 4, 5) sont placés.
PCT/IB2009/051063 2009-03-16 2009-03-16 Antenne réseau à commande de phase microruban WO2010106396A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2009/051063 WO2010106396A1 (fr) 2009-03-16 2009-03-16 Antenne réseau à commande de phase microruban

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2009/051063 WO2010106396A1 (fr) 2009-03-16 2009-03-16 Antenne réseau à commande de phase microruban

Publications (1)

Publication Number Publication Date
WO2010106396A1 true WO2010106396A1 (fr) 2010-09-23

Family

ID=41202487

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/051063 WO2010106396A1 (fr) 2009-03-16 2009-03-16 Antenne réseau à commande de phase microruban

Country Status (1)

Country Link
WO (1) WO2010106396A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102547791A (zh) * 2011-12-14 2012-07-04 北京邮电大学 基于射频无线信号的移动终端运动方向的检测方法及装置
WO2015062473A1 (fr) * 2013-10-28 2015-05-07 华为技术有限公司 Antenne de station de base
CN110247158A (zh) * 2019-05-28 2019-09-17 北京星网锐捷网络技术有限公司 一种uhf rfid阅读器天线及切换方法
CN110739544A (zh) * 2019-10-31 2020-01-31 上海无线电设备研究所 一种超宽带共形相控阵天线波束控制系统及方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688040A2 (fr) * 1994-06-13 1995-12-20 Nippon Telegraph And Telephone Corporation Antenne imprimée de transmission bidirectionnelle
US5617103A (en) * 1995-07-19 1997-04-01 The United States Of America As Represented By The Secretary Of The Army Ferroelectric phase shifting antenna array
US6121933A (en) * 1995-12-13 2000-09-19 Ail Systems, Inc. Dual near-field focused antenna array
US6873301B1 (en) * 2003-10-07 2005-03-29 Bae Systems Information And Electronic Systems Integration Inc. Diamond array low-sidelobes flat-plate antenna systems for satellite communication
JP2008048077A (ja) * 2006-08-11 2008-02-28 Brother Ind Ltd 無線通信装置
US20090002165A1 (en) * 2007-06-28 2009-01-01 Micron Technology, Inc. Method and system of determining a location characteristic of a rfid tag

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688040A2 (fr) * 1994-06-13 1995-12-20 Nippon Telegraph And Telephone Corporation Antenne imprimée de transmission bidirectionnelle
US5617103A (en) * 1995-07-19 1997-04-01 The United States Of America As Represented By The Secretary Of The Army Ferroelectric phase shifting antenna array
US6121933A (en) * 1995-12-13 2000-09-19 Ail Systems, Inc. Dual near-field focused antenna array
US6873301B1 (en) * 2003-10-07 2005-03-29 Bae Systems Information And Electronic Systems Integration Inc. Diamond array low-sidelobes flat-plate antenna systems for satellite communication
JP2008048077A (ja) * 2006-08-11 2008-02-28 Brother Ind Ltd 無線通信装置
US20090002165A1 (en) * 2007-06-28 2009-01-01 Micron Technology, Inc. Method and system of determining a location characteristic of a rfid tag

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RICHARD C. JOHNSON: "Antenna engineering handbook, fixed beam microstrip arrays", 1993, MCGRAW-HILL, INC., US, NEW YORK, XP002552504 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102547791A (zh) * 2011-12-14 2012-07-04 北京邮电大学 基于射频无线信号的移动终端运动方向的检测方法及装置
CN102547791B (zh) * 2011-12-14 2014-06-18 北京邮电大学 基于射频无线信号的移动终端运动方向的检测方法及装置
WO2015062473A1 (fr) * 2013-10-28 2015-05-07 华为技术有限公司 Antenne de station de base
US10446926B2 (en) 2013-10-28 2019-10-15 Huawei Technologies Co., Ltd. Base station antenna
US11563268B2 (en) 2013-10-28 2023-01-24 Huawei Technologies Co., Ltd. Base station antenna
CN110247158A (zh) * 2019-05-28 2019-09-17 北京星网锐捷网络技术有限公司 一种uhf rfid阅读器天线及切换方法
CN110739544A (zh) * 2019-10-31 2020-01-31 上海无线电设备研究所 一种超宽带共形相控阵天线波束控制系统及方法
CN110739544B (zh) * 2019-10-31 2021-01-19 上海无线电设备研究所 一种超宽带共形相控阵天线波束控制系统及方法

Similar Documents

Publication Publication Date Title
US7999736B2 (en) Slot antenna and method for its operation
US7898480B2 (en) Antenna
US8204438B2 (en) RF ID tag reader utilizing a scanning antenna system and method
US7187288B2 (en) RFID tag reading system and method
US7068234B2 (en) Meta-element antenna and array
US7496329B2 (en) RF ID tag reader utilizing a scanning antenna system and method
US7183922B2 (en) Tracking apparatus, system and method
AU2009317877B2 (en) Radio frequency transponder system
US8362954B2 (en) Array antenna, tag communication device, tag communication system, and beam control method for array antenna
US20050159187A1 (en) Antenna system and method
US20080143620A1 (en) Increasing the bandwidth of a RFID dipole tag
US20050113138A1 (en) RF ID tag reader utlizing a scanning antenna system and method
CN111352081B (zh) 用于高分辨率雷达系统的行波成像歧管
WO2010106396A1 (fr) Antenne réseau à commande de phase microruban
CN111699593B (zh) 圆顶形相控阵天线
CN110854551B (zh) 一种基于数字相控技术的高增益平面相控阵天线
EP1886383A2 (fr) Antenne
KR20220089945A (ko) 어레이 패치 안테나
CN113193374A (zh) 一种加载pin二极管的频率可重构天线及方法
RU2424606C1 (ru) Шлицевая антенна и способ идентификации частоты радиоволн (rfid)
Konch et al. Design of a pattern reconfigurable switched parasitic array for null steering application
Kim et al. Switched microstrip array antenna for RFID system
KR20080025242A (ko) 선반형 ｒｆｉｄ 안테나
CN112055918B (zh) 天线模块
Sporer et al. A planar reconfigurable focal plane array antenna for 24 GHz

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09786329

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09786329

Country of ref document: EP

Kind code of ref document: A1