A Novel Tuning Fork-Shaped Tri-Band Planar Antenna for Wireless Applications

Abstract

A novel tuning fork-shaped tri-band planar antenna (NTTPA) for the LTE 2.3/3.8-GHz band, WLAN 2.4/5.2/5.8-GHz band, and WiMax 2.5/3.5/5.5-GHz band is presented in this letter. By introducing an asymmetrical turning fork-shaped patch and an inverted L-shaped patch, three notched bands can be generated to form a triple-band operation. The antenna is fabricated on an FR4 board and excited by an SMA connector using a microstrip line. The antenna structure is simple and has a compact size of 45 mm × 40 mm. The measured operating frequency covers 2.2–2.63, 2.73–3.8, and 5.13–6.3 GHz, and the percentage bandwidth is close to 53.3% (S11 < −9.8 dB from 2.2 to 3.8 GHz) and 20.5% (S11 < −10 dB from 5.13 to 6.3 GHz). The calculated and experimental results suggest that the proposed antenna is one of the best candidates for wireless communication systems in terms of multi operating bands, broad percentage bandwidth (BW), compactness, stable radiation pattern, easy processing, and low cost.

Design and Analysis of a Quad-Band Antenna for IoT and Wearable RFID Applications

“…The intricacy of this design process makes the development of multiband antennas more challenging compared to their single-band and UWB counterparts. Multiband antennas have been effectively employed in various applications, including RFID, IoT, WLAN, and satellite communications [10,11].…”