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

Volume

4

fYear

2010

fDate

14-15 Aug. 2010

Firstpage

76

Lastpage

79

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIE.2010.308

Filename

5571690