Title :
FDTD analysis of a probe-fed dielectric resonator antenna array with hard horn for spatial power combiner
Author :
Zhang, Yizhe ; Kishk, Ahmed A. ; Yakovlev, Alexander B. ; Glisson, Allen W.
Author_Institution :
Dept. of Electr. Eng., Mississippi Univ., USA
Abstract :
Probe-fed dielectric resonator antenna (DRA) arrays with hard horn excitation are investigated in an oversized dielectric loaded waveguide for their use in waveguide-based spatial power combining systems. The finite-difference time-domain (FDTD) approach with region-by-region discretization scheme is proposed for the analysis of the entire system. Numerical results for the scattering parameters are demonstrated for the example of 3 × 3 DRA array excited by a hard horn. A parametric study is presented in order to optimize the system for scattering and coupling characteristics.
Keywords :
S-parameters; antenna arrays; dielectric resonator antennas; dielectric-loaded antennas; dielectric-loaded waveguides; finite difference time-domain analysis; horn antennas; power combiners; finite-difference time-domain analysis; hard horn excitation; oversized dielectric loaded waveguide; probe-fed dielectric resonator antenna array; scattering parameters; spatial power combining system; Antenna arrays; Dielectric resonator antennas; Finite difference methods; Horn antennas; Loaded antennas; Loaded waveguides; Parametric study; Power combiners; Scattering parameters; Time domain analysis; Dielectric resonator antenna; Finite-Difference Time-Domain method; hard horn; spatial power combining;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606615
