Title :
A printed antenna beam former implemented using tensor transmission-line metamaterials
Author :
Gok, G. ; Grbic, A.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan - Ann Arbor, Ann Arbor, MI, USA
Abstract :
This paper presents the implementation of an antenna beam former using tensor transmission-line (TL) metamaterials. Unit cells exhibiting both isotropic and anisotropic effective material parameters are utilized in the design. The beam former produces a uniform power density and a uniform phase profile at its output. The device includes a printed beam former, an antenna flare and seven feeds. The designed antenna beam former has planar input/output faces and has dimensions 2.97λ0×5.94λ0 at the operating frequency of 8.25 GHz. Measurement results show that the beam former exhibits a scan capability between -33° and +33°, a gain of 8.55 dB, and HPBW of 11.70°.
Keywords :
array signal processing; metamaterial antennas; microstrip antennas; microwave antennas; transmission lines; antenna flare; frequency 8.25 GHz; printed antenna beam former; tensor TL metamaterials; tensor transmission-line metamaterials; uniform phase profile; uniform power density; Antenna measurements; Electromagnetics; Feeds; Metamaterials; Tensile stress;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904712
