Lin Teng1 and Jie Liu This email address is being protected from spambots. You need JavaScript enabled to view it.1 1Shenyang Normal University, Shenyang 110034, P.R. China
Received:
November 9, 2017
Accepted:
January 12, 2018
Publication Date:
September 1, 2018
Download Citation:
||https://doi.org/10.6180/jase.201809_21(3).0012
Traditionally, more pulse energy is distributed in the relatively low frequency range than that in the high frequency range for a short pulse excitation. However, obtaining a well low-frequency performance for the relatively limited spatial volume of antenna is very difficult. The design of traditional transverse electric magnetic (TEM) wave antenna is irregular. Therefore, we propose a new TEM horn antenna based on plexiglass antenna cap in this paper. We determine the structure of new model through analyzing feed-in structure and the radiation characteristics. Then we use 3-dimension electromagnetic field simulator to build up antenna model and finish related structural parameters optimization. Through simulation, we realize the smaller feed-in reflection of fast pulse. This model has better time-frequency characteristic. Finally, we make antenna experiments, which shows that the new horn antenna has good time domain fidelity and feed-in reflection properties. It is suitable for ultra-wide band antenna.ABSTRACT
Keywords:
Transverse Electric Magnetic Wave Antenna, Plexiglass Antenna Cap, 3-dimension Electromagnetic Field Simulator
REFERENCES