Title :
Ultra-wideband radiation from aperture antennas: a simultaneous time-and frequency-domain modelling
Author :
Marrocco, Gaetano ; Ciattaglia, Matteo
Author_Institution :
DISP, Univ. di Roma, Italy
Abstract :
A new method for the calculation of transient field radiated through aperture antennas is described. The finite-difference time-domain method is applied for the near field prediction in the dose surrounding of the antenna and a proper parametrization of the aperture field by space-and time-variant basis functions permits to obtain closed-form far field formulas which are separable with regard to space and time. The feasibility of the method is discussed by application to the time and frequency domain analysis of a broadband circular ridged horn antenna in both standalone and array configurations.
Keywords :
antenna radiation patterns; aperture antennas; broadband antennas; finite difference time-domain analysis; frequency-domain analysis; horn antennas; aperture antennas; array configuration; broadband circular ridged horn antenna; closed-form far field formula; finite-difference time-domain method; near field prediction; space-time-variant basis function; standalone; time-frequency domain analysis; transient field radiation; Aperture antennas; Broadband antennas; Communication industry; Electromagnetic radiation; Electromagnetic waveguides; Finite difference methods; Frequency domain analysis; Time domain analysis; Ultra wideband antennas; Ultra wideband technology;
Conference_Titel :
Applied Electromagnetics and Communications, 2003. ICECom 2003. 17th International Conference on
Print_ISBN :
953-6037-39-4
DOI :
10.1109/ICECOM.2003.1291011
