A microstrip-based leaky-wave antenna for two-sided frequency beam scanning and broadside radiation is presented. In particular, the optimized "bull-eye" ring structure is designed to support leakage of the fundamental TM mode of the guiding structure in a regime without any other leaky- or surface-wave modes. Also by following suggested design rules, to achieve good isolation between the printed rings and the TM source, a beam scan angle range of 121 degrees can be realized over an operating bandwidth of more than 40% with antenna mismatch losses of less than 0.14 dB. Supporting numerical calculations are also in agreement with the simulations and antenna measurements.
Optimization of a Planar "Bull-Eye" Leaky-Wave Antenna Fed by a Printed Surface-Wave Source / S. K., Podilchak; Baccarelli, Paolo; Burghignoli, Paolo; A. P., Freundorfer; Y. M. M., Antar. - In: IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS. - ISSN 1536-1225. - STAMPA. - 12:(2013), pp. 665-669. [10.1109/lawp.2013.2262572]
Optimization of a Planar "Bull-Eye" Leaky-Wave Antenna Fed by a Printed Surface-Wave Source
BACCARELLI, Paolo;BURGHIGNOLI, Paolo;
2013
Abstract
A microstrip-based leaky-wave antenna for two-sided frequency beam scanning and broadside radiation is presented. In particular, the optimized "bull-eye" ring structure is designed to support leakage of the fundamental TM mode of the guiding structure in a regime without any other leaky- or surface-wave modes. Also by following suggested design rules, to achieve good isolation between the printed rings and the TM source, a beam scan angle range of 121 degrees can be realized over an operating bandwidth of more than 40% with antenna mismatch losses of less than 0.14 dB. Supporting numerical calculations are also in agreement with the simulations and antenna measurements.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
