Summary
International Symposium on Antennas and Propagation
2012
Session Number:4E2
Session:
Number:4E2-1
Metamaterial Ridged Waveguides with Wavelength Control for Array Antenna Applications
Hideki Kirino,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
A new structure for suppressing the grating lobes of array antennas using the Metamaterial Ridged Waveguides (MRW) is proposed. After confirming that the MRW could be modelled as a distributed transmission line, it was shown that periodic steps on the ridge of the MRW decrease the wavelength. The distance between the radiation elements in the resonating feed line, which is equal to the wavelength, also decreases, contributing to suppression of the grating lobes.