Multibeam antenna array for RFID applications

Author

Weisgerber, Lars ; Popugaev, Alexander E.

Author_Institution

RF & Microwave Design Dept. Antennas & RF Circuits, Fraunhofer Inst. for Integrated Circuits, Erlangen, Germany

fYear

2013

fDate

6-10 Oct. 2013

Firstpage

84

Lastpage

87

Abstract

This paper presents a high performance 2 × 2 antenna array with a Butler matrix beamforming network for RFID applications in the UHF band 860 - 960MHz. The antenna elements as well as the Butler matrix are implemented using microstrip technology. Thanks to the applied original microstrip routing technique the design is very compact and has low fabrication costs. Performed RFID bulk measurements demonstrate an improvement of the reading reliability of passive RFID tags stacked in a pallet using the proposed antenna concept in contrast to the operation with a conventional singlebeam reader antenna.

Keywords

beam steering; microstrip antenna arrays; radiofrequency identification; Butler matrix beamforming network; RFID bulk measurement; antenna element; bandwidth 860 MHz to 960 MHz; microstrip technology; multibeam antenna array; original microstrip routing technique; passive RFID tag; radiofrequency identification; singlebeam reader antenna; Antenna measurements; Antenna radiation patterns; Broadband antennas; Butler matrices; Radiofrequency identification;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2013 European

Conference_Location

Nuremberg

Type

conf

Filename

6686596