Title :
Reconfigurable Beam Steering Using a Microstrip Patch Antenna With a U-Slot for Wearable Fabric Applications
Author :
Ha, Sang-Jun ; Jung, Chang Won
Author_Institution :
Grad. Sch. of NID Fusion Technol., Seoul Nat. Univ. of Sci. & Technol., Seoul, South Korea
fDate :
7/3/1905 12:00:00 AM
Abstract :
Reconfigurable beam steering using a microstrip patch antenna with a U-slot is proposed for wearable fabric applications. The proposed antenna was manufactured on a fabric substrate and designed to steer the beam directions at the operation frequency of 6.0 GHz. The U-shaped slot and a proximity-coupled feeding technique are applied to design the proposed antenna. By configuring two artificial switches between the proximity-coupled feed and the antenna patch, the antenna is given three beam directions (S0, S1, and S2). The maximum beam directions are steerable in the yz -plane (θ = 0° , 30° , and 331° , respectively), and the overall HPBW is 115°. The measured peak gains are 6.11-6.69 dBi.
Keywords :
antenna feeds; beam steering; microstrip antennas; microwave antennas; wearable antennas; U-shaped slot feeding technique; U-slot; beam directions steering; fabric substrate; frequency 6.0 GHz; microstrip patch antenna; proximity-coupled feeding technique; reconfigurable beam steering; wearable fabric; Antenna measurements; Antenna radiation patterns; Current distribution; Fabrics; Microstrip antennas; Substrates; Beam-steering antennas; U-slot; fabric antennas; patch antennas; wearable antennas;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2011.2174022
