Measurement of HF monopole antenna array ground wave gain, antenna factor, and antenna noise factor

Author

Arafiles, Virgilio P.

Author_Institution

Dept. of Defense, Ellicott City, MD, USA

Volume

2

fYear

2001

fDate

2001

Firstpage

991

Abstract

This paper presents a practical way to measure the ground wave gain G_GW, ground wave antenna factor AF_GW, and antenna noise factor F_a(Mon) of monopoles used in BF antenna arrays. It shows measurement results taken from June 1997 to September 1999 at five geographically separated HIT arrays. F_a(Mon) is derived from site specific noise electric field E_n and can be compared with "standard" F_a(*). While antenna noise factor is antenna dependent, E_n is not and can be used as a limit for site EMC with noise emitters

Keywords

HF antennas; antenna testing; electric noise measurement; electromagnetic compatibility; gain measurement; monopole antenna arrays; HF monopole antenna array; antenna noise factor measurement; geographically separated HIT arrays; ground wave antenna factor measurement; ground wave gain measurement; site EMC; site specific noise electric field; Antenna arrays; Antenna measurements; Frequency; Gain measurement; Hafnium; Noise measurement; Receiving antennas; Testing; Transmitting antennas; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-6569-0

Type

conf

DOI

10.1109/ISEMC.2001.950530

Filename

950530