Title :
A fast and slow wave combined-mode metamaterial ridged waveguide for array antenna applications
Author :
Kirino, H. ; Ogawa, Koichi
Author_Institution :
Panasonic Healthcare Co. Ltd., Saijo, Japan
Abstract :
A new structure for a `metamaterial´ ridged waveguide with the ability to control wavelength is proposed. The structure has the remarkable features of a wide control-range in wavelength from the fast-wave to slow-wave regions across the TEM wavelength in free space, and a waveguide impedance-control function that is independent of wavelength. This feature can improve the performance of array antennas in the reduction of grating lobes and side lobes.
Keywords :
metamaterial antennas; ridge waveguides; waveguide antenna arrays; TEM wavelength; array antenna applications; combined-mode metamaterial ridged waveguide; fast-wave regions; free space; grating lobes reduction; side lobes reduction; slow-wave regions; waveguide impedance-control function; Antenna arrays; Arrays; Electromagnetic waveguides; Impedance; Lighting; Waveguide discontinuities; array antenna; fast-wave; impedance; metamaterial; slow-wave; wavelength;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
