Title :
Nonreciprocal and magnetically scanned leaky-wave antenna using coupled CRLH lines
Author :
Apaydin, Nil ; Lee, Lanlin Z. ; Sertel, Kubilay ; Volakis, J.L.
Author_Institution :
Electr. & Comput. Eng. Dept., Ohio State Univ., Columbus, OH, USA
Abstract :
A new class of magnetoelectrics-based leaky-wave antennas (LWA) is proposed for wide angle beam-steering via magnetic tuning. This new LWA is based on coupled composite-right-left-handed microstrip lines printed on a ferrite substrate. To accomplish radiation, the printed coupled transmission lines are operated in the fast wave region (|β|<;k0). Beam-steering was attained by changing the magnetic properties of the ferrite, controlled by the external bias field. Specifically, the beam was successfully scanned in the E-plane by 80° via changing the bias field by ±50Oe. The associated gain varies between 3.5dB and 5dB at the operating frequency 1.85 GHz as the beam is scanned.
Keywords :
beam steering; leaky wave antennas; microstrip lines; coupled CRLH lines; coupled composite-right-left-handed microstrip lines; ferrite substrate; frequency 1.85 GHz; magnetic tuning; magnetically scanned leaky-wave antenna; magnetoelectrics-based leaky-wave antennas; nonreciprocal scanned leaky-wave antenna; printed coupled transmission lines; wide angle beam-steering; Antennas; Iron; Laboratories; Magnetoelectric effects; Slabs;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711807
