Title :
The development of a modified Hansen-Woodyard condition to include attenuation for leaky-wave endfire antennas
Author :
O´Connor, E.M. ; Jackson, David R. ; Long, Stuart A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Houston, Houston, TX, USA
Abstract :
The Hansen-Woodyard condition, which maximizes directivity for an endfire antenna, is modified in this paper to include attenuation, so that it is applicable to leaky-wave antennas. The optimum phase constant β for a 90% efficient leaky-wave antenna was determined. The original Hansen-Woodyard condition, yields a slightly narrower beam and higher sidelobes as compared to the modified Hansen-Woodyard condition. The optimum radiation efficiency for maximizing gain was approximately solved.
Keywords :
antenna radiation patterns; antenna theory; directive antennas; endfire antenna directivity; high sidelobes; leaky wave endfire antenna attenuation; modified Hansen-Woodyard condition; narrow beam; optimum phase constant; Apertures; Arrays; Attenuation; Computers; Gain; Leaky wave antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-4967-5
DOI :
10.1109/APS.2010.5560913
