Romanian Journal of Information Science and Technology (ROMJIST)

An open – access publication

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ROMJIST is a publication of Romanian Academy,
Section for Information Science and Technology

Editor – in – Chief:
Radu-Emil Precup

Honorary Co-Editors-in-Chief:
Horia-Nicolai Teodorescu
Gheorghe Stefan

Secretariate (office):
Adriana Apostol
Adress for correspondence: romjist@nano-link.net (after 1st of January, 2019)

Founding Editor-in-Chief
(until 10th of February, 2021):
Dan Dascalu

Editing of the printed version: Mihaela Marian (Publishing House of the Romanian Academy, Bucharest)

Technical editor
of the on-line version:
Lucian Milea (University POLITEHNICA of Bucharest)

Sponsor:
• National Institute for R & D
in Microtechnologies
(IMT Bucharest), www.imt.ro

ROMJIST Volume 25, No. 2, 2022, pp. 170-178
 

Dan NECULOIU, Alina-Cristina BUNEA, Ovidiu George PROFIRESCU
Compact Implementation of an RFID Tag with Electromagnetic Wave Polarization Diversity

ABSTRACT: The paper presents a backscattering RFID system with reduced interference of incident and reflected electromagnetic waves. The tag system is designed for 5 GHz operating frequency and uses two microstrip patch antennas with linear polarization in perpendicular directions. Between the tag antennas a block including a Schottky diode is used for amplitude modulation of the received signal with tag information. The tag is fabricated on a FR-4 double clad substrate and the measurements results are presented.

KEYWORDS: Amplitude modulation, microstrip patch antenna, RFID, wave polarization diversity

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