A Simple Patch Antenna Design with Multiple Linear Polarizations for RFID Readers

Antenna for RFID

Authors

Keywords:

RFID, Ultra-High Frequency, Linear Polarization, Reconfigurable Antenna, PIN Diode, Crossed Patch Antenna, Polarization Diversity

Abstract

This paper proposed a compact antenna with multiple linear polarization realization for radio frequency identification (RFID) operating at ultra-high frequency (UHF) band. The main radiator is a crossed patch, which is excited by different feeding positions to adjust the current flowing on the patch. To minimize the unwanted effect of the biasing circuit on the antenna radiation performance, the antenna is excited through a reconfigurable feeding network with one input and three outputs. By controlling the ON/OFF states of three PIN diodes integrated into the feeding network, four different modes including horizontal, vertical, and both diagonal polarizations can be realized. The final antenna design with overall dimensions of 0.67 λ × 0.67 λ × 0.04 λ at 915 MHz shows good matching performance from 910 to 925 MHz. Within this band, the broadside gain values for all polarization states are better than 6.2 dBi.

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Author Biographies

Trang Hoang-Thu, Phenikaa University

Trang Hoang-Thu is an undergraduate student at Faculty of Electrical and Electronic Engineering, Phenikaa School of Engineering, Phenikaa University, Hanoi, Vietnam. Her research interests have included microstrip patch antennas, MIMO antennas, and microwave technology.

Hung Pham-Duy, Phenikaa University

Hung Pham-Duy received the B.E. degree in Electronics and Telecommunications from the Hanoi University of Science and Technology (HUST), Hanoi, Vietnam, in 2015. He is currently a Research Assistant with the Faculty of Electrical and Electronic Engineering at Phenikaa University, Hanoi. His current research interests include the design and optimization of microstrip patch antennas, specifically focusing on wideband enhancement techniques using U-slots and V-cut geometries. Additionally, his work explores circular polarization, metasurfaces, and the development of MIMO systems for 5G applications.

Hung Tran-Huy, Phenikaa University

Hung Tran-Huy received the B.S. degree in electronics and telecommunications from Hanoi University of Science and Technology, Hanoi, Vietnam, in 2013. He received his M.S. and Ph. D. degrees in electrical engineering from Ajou University, in 2015, and Dongguk University, Korea, in 2020, respectively. He is currently a lecturer at Faculty of Electrical and Electronic Engineering, PHENIKAA School of Engineering, PHENIKAA University, Hanoi, Vietnam. His research interests have included circularly polarized antennas, MIMO antennas, metamaterial-based antennas, and reconfigurable antennas.

Hyun Chang Park, Dongguk University

Hyun-Chang Park (Member, IEEE) received the B.S. degree in electronics engineering from Seoul National University, Seoul, South Korea, in 1986, and the M.S. and Ph.D. degrees in electrical engineering from Cornell University, Ithaca, NY, USA, in 1989 and 1993, respectively. From 1993 to 1995, he was a Research Associate with the Department of Electrical Engineering, University of Virginia, Charlottesville, VA, USA. In 1995, he joined the Department of Electronics and Electrical Engineering, Dongguk University, Seoul, South Korea, where he is currently a Professor. His research interests include RF energy harvesting, wideband/multi-band planar antennas, and reconfigurable antennas for various wireless applications.

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Published

2026-04-15

How to Cite

Hoang-Thu, T., Pham-Duy, H., Tran-Huy, H., & Park, H. C. (2026). A Simple Patch Antenna Design with Multiple Linear Polarizations for RFID Readers: Antenna for RFID. IEEE Latin America Transactions, 24(6), 629–635. Retrieved from https://latamt.ieeer9.org/index.php/transactions/article/view/10622

Issue

Vol. 24 No. 6 (2026): Ordinary Issue

Section

Electronics