Accession Number : AD0773359

Title :   Transient Radiation from Coaxial Waveguide and Cylindrical Monopole Antennas.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA INST OF TECH PASADENA ANTENNA LAB

Personal Author(s) : Broome,Norval L.

Report Date : NOV 1973

Pagination or Media Count : 191

Abstract : The coaxial waveguide antenna is treated by the Wiener-Hopf technique and the transient radiation from a cylindrical monopole is developed in the light of the rigorous results obtained from the Wiener-Hopf analysis. Analytic expressions are derived for (1) the electromagnetic fields in the feed line and (2) the far zone radiation fields of the coaxial waveguide antenna, with time harmonic excitation voltage. Complete characterization of the transient behavior is also found for (1) the fields interior to the feed line and (2) the radiated fields for excitation voltages arbitrary in their time dependence to the extent that kb,ka much less than one. This corresponds to the case of a thin antenna and excitation voltage with a non-zero rise time, specifically chosen so that frequencies violating the restriction kb,ka much less than one are negligible. (Modified author abstract)

Descriptors :   *Monopole antennas, *Slot antennas, Transients, Coaxial cables, Mathematical analysis, Electromagnetic fields, Theses

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE