Calculation on characteristics of VLF umbrella inverted-cone transmitting antenna

Author

Huifen Li ; Chao Liu

Author_Institution

Dept. of Commun. Eng., Naval Univ. of Eng., Wuhan, China

fYear

2014

fDate

8-11 July 2014

Firstpage

389

Lastpage

391

Abstract

This paper introduces a new kind of VLF umbrella inverted-cone transmitting antenna, which an inverted cone is added to the typical umbrella antenna. Two VLF umbrella antenna systems - umbrella inverted-cone antenna and typical umbrella antenna are modeled and simulated by using electromagnetic simulation software (FEKO). In order to study the electrical characteristics of umbrella antenna, top-hat wires, down-lead wires, ground screen, effective radius of supporting tower and metallic loss are taken into consideration in the model. Electric characteristics, such as input reactance, radiation resistance and effective height are calculated and studied using the antenna models established. The result shows that the effective height and the radiation resistance of umbrella inverted-cone antenna has increased apparently.

Keywords

conical antennas; electric properties; poles and towers; radiowave propagation; reflector antennas; transmitting antennas; FEKO; VLF umbrella antenna systems; VLF umbrella inverted-cone transmitting antenna; antenna models; down-lead wires; electrical characteristics; electromagnetic simulation software; ground screen; input reactance; metallic loss; radiation resistance; supporting tower; top-hat wires; Antenna radiation patterns; Poles and towers; Resistance; Transmitting antennas; Wires; VLF; umbrella antenna; umbrella inverted-cone antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Ubiquitous and Future Networks (ICUFN), 2014 Sixth International Conf on

Conference_Location

Shanghai

Type

conf

DOI

10.1109/ICUFN.2014.6876819

Filename

6876819