Title :
Mode 2 four-arm spiral antennas as pulse radiators
Author :
Elmansouri, Mohamed A. ; Filipovic, Dejan S.
Author_Institution :
Dept. of Electr., Comput., & Energy Eng., Univ. of Colorado, Boulder, CO, USA
Abstract :
This paper investigates the frequency- and time-domain properties of mode 2 four-arm spiral antennas. First, the antenna´s complex far fields obtained from method of moments (MOM) simulation are used to synthesize the transfer function of the communication link. Then, the time domain response is obtained by post processing the frequency domain data using the Inverse Fast Fourier Transform (IFFT). The dispersion of spiral antennas and associated pulse distortion of the communication link is evaluated over wide field of view for different source pulse shapes, and antenna geometrical parameters.
Keywords :
fast Fourier transforms; frequency-domain analysis; method of moments; spiral antennas; time-domain analysis; transfer functions; IFFT; MOM simulation; communication link; frequency-domain properties; inverse fast Fourier transform; method of moments; mode 2 four-arm spiral antennas; pulse radiators; time-domain properties; transfer function; Antenna measurements; Dispersion; Receiving antennas; Spirals; Transfer functions; Transmitting antennas; fidelity factor; four-arm spiral; pulse dispersion; transfer function;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5997242
