Title :
A printed ‘bull-eye’ leaky-wave antenna fed by a non-directive surface-wave launcher
Author :
Podilchak, Symon K. ; Paulotto, Simone ; Burghignoli, Paolo ; Antar, Yahia M M ; Baccarelli, Paolo ; Freundorfer, Alois P. ; Lovat, Giampiero
Author_Institution :
Dept. of Electr. & Comput. Eng., R. Mil. Coll. of Canada, Kingston, ON, Canada
Abstract :
A planar `bull-eye´ antenna design that utilizes surface-waves (SWs) for leaky-wave (LW) excitation is investigated for millimeter-wave frequencies of operation. Specifically, a planar non-directive surface-wave launcher (SWL) is employed as the antenna feed, generating bidirectional SW field distributions on a grounded dielectric slab (GDS). By the addition of annular metallic strip gratings, LWs can be excited on the planar guiding surface, defining the practical 2-D leaky-wave antenna (LWA).
Keywords :
antenna feeds; electromagnetic launchers; leaky wave antennas; loop antennas; microstrip antennas; millimetre wave antennas; planar antennas; surface electromagnetic waves; annular metallic strip grating; antenna feed; bidirectional SW field distribution; grounded dielectric slab; millimeter-wave frequencies; planar nondirective surface-wave launcher; printed bull-eye 2D leaky-wave antenna design; Antenna feeds; Coplanar waveguides; Dielectrics; Frequency; Gratings; Leaky wave antennas; Microstrip antennas; Slabs; Slot antennas; Topology;
Conference_Titel :
Wireless Technology Conference, 2009. EuWIT 2009. European
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4721-3
