Design of compact circularly polarized radio frequency identification tag antenna for metallic object application

2013 ◽  
Vol 55 (7) ◽  
pp. 1481-1485 ◽  
Author(s):  
Horng-Dean Chen ◽  
Shang-Huang Kuo ◽  
Jing-Lun Jheng
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Circularly Polarized ◽  
Frequency Identification ◽  
Metallic Object

scholarly journals Compact Dual-Band Circularly Polarized Stacked Patch Antenna for Microwave-Radio-Frequency Identification Multiple-Input-Multiple-Output Application

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Enze Zhang ◽  
Andrea Michel ◽  
Paolo Nepa ◽  
Jinghui Qiu
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Patch Antenna ◽  
Multiple Input Multiple Output ◽  
Dual Band ◽  
Circularly Polarized ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Frequency Identification ◽  
Stacked Patch Antenna

A compact, low-profile, two-port dual-band circularly polarized (CP) stacked patch antenna for radio-frequency identification (RFID) multiple-input-multiple-output (MIMO) readers is proposed, which employs the shared-aperture technique. The proposed antenna adopts a 1.524 mm thickness Rogers Ro4350b substrate with relative permittivity of 3.48. Two pairs of isolated ports are working at two microwave- (MW-) RFID bands (2.4–2.485 GHz and 5.725–5.875 GHz) with high port isolation of 25 dB and 30 dB, respectively. A shared metal slot layer is designed to separate two feeding structures of the lower band and upper band for port isolation enhancement as well as saving space. Corner-truncated square slot and patch configurations have been designed to obtain CP modes. In the lower and upper MW-RFID bands, the relative impedance bandwidths are 12.2% and 5.7%, and the maximum realized gains are higher than 7.3 dBic. Moreover, two-element configurations have been combined for an RFID MIMO system that occupies a dimension of 119 mm × 119 mm × 12.9 mm. The MIMO antenna performance of envelope correlation coefficient (ECC) is lower than 0.03, and diversity gain is close to 10 dB.

Design of the Circularly Polarized Microstrip Antenna as Radio Frequency Identification Tag for 2.4 GHz of Frequency

2015 ◽  
Vol 21 (1) ◽  
pp. 12-14 ◽  
Author(s):  
Rudy Yuwono ◽  
Ronanobelta Syakura ◽  
DwiF. Kurniawan
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Microstrip Antenna ◽  
Circularly Polarized ◽  
Frequency Identification

Tilted bi‐sense circularly‐polarized antenna and its application for radio frequency identification system

2020 ◽  
Vol 30 (7) ◽  
Author(s):  
Wen‐Hai Zhang ◽  
Kam‐Weng Tam ◽  
Wen‐Jun Lu ◽  
Pedro Cheong ◽  
Wai‐Wa Choi ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Identification System ◽  
Circularly Polarized ◽  
Frequency Identification

scholarly journals Compact Circularly Polarized Multiband Antennas for RFID Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
H. M. El Misilmani ◽  
M. Al-Husseini ◽  
K. Y. Kabalan ◽  
A. El-Hajj
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Microstrip Line ◽  
Ground Plane ◽  
Dual Band ◽  
Circularly Polarized ◽  
Multiband Antennas ◽  
Compact Size ◽  
Frequency Identification ◽  
Rfid Applications

This paper presents multiband circularly polarized (CP) antennas for radio frequency identification (RFID). A coax-fed and a microstrip-line-fed antennas having optimized cross-slots in their patches are first designed for dual-band CP operation. The microstrip-line-fed design is then modified, by incorporating a U-shaped slot in its partial ground plane, to achieve additional operation band with a CP characteristic. Simulation and measured results of the presented designs are reported. The measured results are in accordance with the computed ones. The compact size and CP property make these designs suitable for RFID applications.

A low cost miniaturized circularly polarized antenna for UHF radio frequency identification reader applications

2009 ◽  
Vol 51 (10) ◽  
pp. 2382-2384 ◽  
Author(s):  
Zhongbao Wang ◽  
Shaojun Fang ◽  
Shiqiang Fu
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Low Cost ◽  
Circularly Polarized ◽  
Frequency Identification

scholarly journals Small Size and Low Cost UHF RFID Tag Antenna Mountable on Metallic Objects

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Sergio López-Soriano ◽  
Josep Parrón
Keyword(s):  
Radio Frequency ◽  
Transmission Line ◽  
Radio Frequency Identification ◽  
Low Cost ◽  
Experimental Results ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Frequency Identification ◽  
European Regulations ◽  
Metallic Object

Reducing tag size while maintaining good performance is one of the major challenges in radio-frequency identification applications (RFID), in particular when labeling metallic objects. In this contribution, a small size and low cost tag antenna for identifying metal objects in the European UHF band (865–868 MHz) is presented. The antenna consists of a transmission line mounted on an inexpensive thin dielectric which is proximity-coupled to a short-ended patch mounted on FR4 substrate. The overall dimensions of the tag are 33.5 × 30 × 3.1 mm. Experimental results show that, for an EIRP of 3.2 W (European regulations), such a small and cheap tag attains read ranges of about 5 m when attached to a metallic object.

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