Title :
A Novel Numerical Arithmetic of Calculating Bandwidth for a Giant T-Type VLF Antenna Array
Author :
Jing, Zhang ; Chao, Liu
Author_Institution :
Sch. of Electron. Eng., Naval Univ. of Eng., Wuhan, China
Abstract :
A novel numerical arithmetic of calculating the bandwidth for a high Q and very low frequency (VLF) antenna array was developed. Analyzed the electric current amplitude-frequency characteristic of a VLF T-type antenna array based on the input impedance calculated by Method of Moments (MOM) and interpolated method of Lagrange polynomial. Compared the 3dB bandwidth calculated in numerical arithmetic and classical method with the metrical value of a T-type antenna array. The exactness of the numerical method to calculate the bandwidth was verified. The affection of parameter variation of down lead wires and antenna height on the bandwidth of a T-type antenna was analyzed. Conclusions which can be used for engineering design are obtained.
Keywords :
antenna arrays; method of moments; polynomial approximation; radiowave propagation; Lagrange polynomial; bandwidth calculation; giant T-type VLF antenna array; high Q antenna array; input impedance; method of moments; numerical arithmetic; very low frequency antenna array; Antenna arrays; Bandwidth; Impedance; Moment methods; Resonant frequency; Wires; VLF; antenna; bandwidth; numerical arithmetic;
Conference_Titel :
Information Engineering (ICIE), 2010 WASE International Conference on
Conference_Location :
Beidaihe, Hebei
Print_ISBN :
978-1-4244-7506-3
Electronic_ISBN :
978-1-4244-7507-0
DOI :
10.1109/ICIE.2010.308
