Title :
V-conical antenna
Author :
Hao-Ming Shen ; King, R.W.P. ; Tsun, Tai
Author_Institution :
Gordon McKay Lab., Harvard Univ., Cambridge, MA, USA
fDate :
11/1/1988 12:00:00 AM
Abstract :
A new angular antenna called the V-conical antenna was investigated. The characteristics of the antenna are frequency-independent, and the electromagnetic fields are pure spherical waves (transverse electromagnetic mode) even in the near region. The theoretical analysis makes use of conformal mapping. Closed-form solutions for the fields, currents, and characteristic parameters are obtained. The formulas are simple and precise. An experimental study of the antenna was conducted under pulse excitation. The shape of the measured electric-field pulses is the same as that of the source pulse from a picosecond pulse generator. The measured field patterns are very close to those predicted by the theory. Such a structure with a tapered resistive termination is an ideal directional pulse antenna or electromagnetic pulse simulator
Keywords :
antenna radiation patterns; directive antennas; V-conical antenna; angular antenna; characteristic parameters; conformal mapping; currents; directional pulse antenna; electric-field pulses; electromagnetic fields; electromagnetic pulse simulator; field patterns; frequency-independent; pulse excitation; pure spherical waves; tapered resistive termination; transverse electromagnetic mode; Antenna measurements; Conformal mapping; EMP radiation effects; Electromagnetic fields; Electromagnetic measurements; Electromagnetic scattering; Frequency; Pulse measurements; Pulse shaping methods; Shape measurement;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
