DocumentCode :
2663234
Title :
Analysis of sub-wavelength cavity leaky-wave antennas with high-impedance surfaces
Author :
Mateo-Segura, C. ; García-Vigueras, M. ; Goussetis, G. ; Gómez-Tornero, J.L. ; Feresidis, A.
Author_Institution :
Heriot-Watt Univ., Edinburgh, UK
fYear :
2009
fDate :
16-17 Nov. 2009
Firstpage :
577
Lastpage :
580
Abstract :
We present simple and accurate analysis techniques to simulate and design high-gain Fabry-Perot resonant leaky-wave antennas (LWA). To control the radiation properties of these antennas, two metallodielectric periodic structures are used, one acting as a partially reflective surface (PRS) and a second acting as a high impedance surface (HIS). Full-wave method of moments (MoM) is employed for the estimation of the near fields within the LWA. Invoking reciprocity, this allows for a fast estimation of the radiation patterns. Moreover, a simple transverse equivalent network (TEN) is employed from which the leaky-mode complex propagation constant is obtained. Numerical results are presented to demonstrate the capabilities of these techniques.
Keywords :
antenna radiation patterns; leaky wave antennas; method of moments; full-wave method of moments; high-gain Fabry-Perot resonant leaky-wave antennas; high-impedance surfaces; leaky-mode complex propagation; metallodielectric periodic structures; partially reflective surface; radiation patterns; radiation properties; subwavelength cavity leaky-wave antennas; transverse equivalent network; Analytical models; Antenna radiation patterns; Fabry-Perot; Leaky wave antennas; Moment methods; Periodic structures; Propagation constant; Reflector antennas; Resonance; Surface impedance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas & Propagation Conference, 2009. LAPC 2009. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-2720-8
Electronic_ISBN :
978-1-4244-2721-5
Type :
conf
DOI :
10.1109/LAPC.2009.5352399
Filename :
5352399
Link To Document :
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