Title :
Modeling and simulation of the radiation characteristics of IRA
Author :
Dongdong Wang ; Shengquan Zheng ; Feng Deng ; Dongyun Hou
Author_Institution :
Sci. & Technol. on Electromagn. Compatibility Lab., China Ship Dev. & Design Center, Wuhan, China
Abstract :
In this paper, we made research on the radiation characteristics of IRA with analytical and simulation methods. According to the research results, IRAs exhibit excellent characteristic, as small VSWR at low frequency range, short oscillation time of radiation waveform, narrow main beam, high gain and ultra wide-band. Typical radiation pulse of IRA consists of two parts, namely, the pre-pulse, which share the same shape as the excitation voltage source and is generated by the backward radiation of feed arms, and the main pulse, whose time-domain shape is the differentiation of the excitation voltage. As the volume of IRA decreases, the amplitude of pre-pulse remains the same, while that of the main pluse decreases by the same proportion.
Keywords :
antenna radiation patterns; differentiation; time-domain analysis; IRA; VSWR; backward radiation; differentiation; excitation voltage source; feed arms; impulse radiating antenna; oscillation time; prepulse; radiation characteristics modeling; radiation characteristics simulation; radiation pulse; radiation waveform; time-domain shape; ultra wide-band; Analytical models; Antenna feeds; Horn antennas; Impedance; Solid modeling; Time-domain analysis; IRA; feed arms; modelling; radiation; simulation;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE), 2013 IEEE 5th International Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-6077-7
DOI :
10.1109/MAPE.2013.6689818