Compact dual-band microstrip antenna for handheld RFID reader

Abstract

In this paper, dual-band radio frequency identification (RIFD) reader antenna is proposed. The reader antenna operates at 2.45GHz and 5.8GHz. It comprises two resonances the first in the radiation patch, and the second in the protruding stub in the ground plan. The matching techniques that use stub tuning are used in this work. The radiating patch of the present compact antenna has the dimension of 15.6mm x 8.8mm. A good impedance bandwidth of 148.48MHz and 204.85MHz has been achieved for 2.45GHz and 5.8GHz respectively. The proposed antenna is simple, compact in size, providing a good gain and broadband impedance matching.

2.4–5.8 GHz dual-band patch antenna with FSS reflector for radiation parameters enhancement

“…The dual-band antenna was designed to operate at two resonant frequencies within two widely used segments of the ISM (Industrial, Scientific, and Medical) band: the first one from 2.4 GHz to 2.4835 GHz and the second one from 5.725 GHz to 5.85 GHz. In order to accomplish this frequency band constraint, the antenna geometry definition was based on Tizyi work [24], which presents a dual-band antenna applied to RFID. Only the antenna dimensions were altered in order to get better performance according to the design requirements.…”

Microstrip diplexer design based on two square open loop bandpass filters for RFID applications

“…A microstrip antenna is connected to the proposed diplexer in order to evaluate its performance. Our previous work in [14] proposed an antenna operating in the ISM band (between 2.45 and 5.48 GHz). Using this antenna as a starting point, we modified it to improve its bandwidth using the technique cited in [2] so that it covers both diplexer bands T x and R x .…”

Dual‐band antenna circularly polarized for handheld RFID reader using metasurfaces

“…The antenna used here came from a design of a compact antenna for portable RFID readers used to work at 2.45 and 5.8 GHz, found in . The dimensions of this antenna are optimized to obtain better results.…”