HE receiving antenna directivity patterns and gain for ionospheric propagation model predictions for shortwave broadcasting

Author

Hagn, G.H.

Author_Institution

SRI Int., Arlington, VA

Volume

34

Issue

2

fYear

1988

fDate

6/1/1988 12:00:00 AM

Firstpage

221

Lastpage

229

Abstract

Elevation-plane relative directivity patterns of a 9-ft rod measured with the XELEDOP full-scale HF antenna pattern measurement system are compared with values assumed by the Voice of America (VOA) and the British Broadcasting Corporation (BBC). Values of such directivity patterns and gain for a 7.5-ft monopole with sixteen buried ground radials, measured at the same site, are compared with predictions of directivity and gain made with the numerical electromagnetics code (NEC). An extensive set of recommendations is offered, regarding the appropriate assumptions for the receiving antenna in ionospheric propagation prediction programs

Keywords

antenna radiation patterns; ionospheric electromagnetic wave propagation; radio broadcasting; radiowave propagation; receiving antennas; 7.5 ft; 9 ft; BBC; British Broadcasting Corporation; HE receiving antenna directivity patterns; Voice of America; XELEDOP full-scale HF antenna pattern measurement system; directivity; gain; ground radials; ionospheric propagation model predictions; monopole; numerical electromagnetics code; receiving antenna; recommendations; shortwave broadcasting; Antenna measurements; Antennas and propagation; Broadcasting; Electromagnetic measurements; Electromagnetic propagation; Gain measurement; Hafnium; National electric code; Receiving antennas;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/11.1439

Filename

1439