A novel reduced size microstrip antenna for RFID reader in UHF band applications

Abstract

In this article, we present a novel printed microstrip antenna design for the RFID reader in UHF band applications. This antenna consists of a printed microstrip, surrounded ground and strip-line metal reflector, making it easy to combine directional, high gain, low cross-polarization and wide bandwidth. Reduction in patch size of up to 37% with respect to a traditional rectangular patch operating at the same frequency is obtained. The experimental results of the constructed prototype are presented.