Title :
Extension of the Hansen–Woodyard Condition for Endfire Leaky-Wave Antennas
Author :
O´Connor, Ellen M. ; Jackson, David R. ; Long, Stuart A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Houston, Houston, TX, USA
fDate :
7/2/1905 12:00:00 AM
Abstract :
The Hansen-Woodyard condition is modified to include attenuation, making it applicable to leaky-wave antennas. The optimum phase constants are found for two cases, one based on the array factor only and the other including the element pattern. The optimum radiation efficiency for maximizing the endfire gain is also found in both cases. The effects of material loss on the optimization of endfire gain is also discussed.
Keywords :
antenna radiation patterns; leaky wave antennas; optimisation; Hansen-Woodyard condition; array factor; attenuation; element pattern; endfire gain; endfire leaky-wave antenna; optimization; optimum phase constant; optimum radiation efficiency; Apertures; Arrays; Attenuation; Finite element methods; Leaky wave antennas; Materials; Endfire antennas; Hansen–Woodyard condition; leaky-wave antennas;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2010.2091618
