Title :
Planar leaky-wave antennas - Early concepts and actual results
Author :
Menzel, Wolfgang
Author_Institution :
Inst. of Microwave Tech., Univ. of Ulm, Ulm, Germany
Abstract :
Leaky-wave antennas are based on the radiation along transmission lines, either due to natural radiation regimes or periodic perturbations. The leaky nature of higher-order modes of microstrip lines was a discovery only at the end of the 1970´s. Phase (velocity) engineering by metamaterial used for leaky-wave antennas came up in the early 2000´s. This overview gives a short review of basics and three examples of realized leaky-wave antennas.
Keywords :
antenna radiation patterns; leaky wave antennas; metamaterial antennas; microstrip lines; perturbation techniques; planar antennas; transmission lines; higher-order modes; metamaterial; microstrip lines; natural radiation; periodic perturbations; phase velocity engineering; planar leaky-wave antennas; transmission lines; Leaky wave antennas; Microstrip; Microstrip antennas; Microwave antennas; Microwave theory and techniques; Radar antennas; antennas; dielectric waveguide; leaky-wave antennas; microstrip transmission lines; periodic transmission lines;
Conference_Titel :
Microwave Conference (EuMC), 2013 European
Conference_Location :
Nuremberg
