A rhombic antenna case study

Author

Christman, Ai

Author_Institution

Grove City Coll., PA, USA

Volume

42

Issue

4

fYear

1996

fDate

12/1/1996 12:00:00 AM

Firstpage

314

Lastpage

322

Abstract

A NASA research program has been instituted which seeks to replace the present hydraulic and pneumatic control systems on commercial aircraft with electro-optical and electro-mechanical devices. This new technology should be lighter, cheaper, and easier to maintain, but may be susceptible to high-amplitude externally-generated electromagnetic fields. To determine the expected level of interference, a rhombic antenna utilized by the Voice of America for international short-wave broadcasting was modeled using NEC-4D. The predicted gain and take-off angle were calculated, along with the electric-field intensity at several data points located near the ground

Keywords

antenna testing; broadcast antennas; electric field measurement; electromagnetic fields; radio broadcasting; radiofrequency interference; transmitting antennas; HF band; NASA research program; NEC-4D; Voice of America; commercial aircraft; electric field intensity measurement; electromagnetic fields; electromechanical devices; electrooptical devices; gain; high-amplitude externally-generated EM fields; interference level; international short-wave broadcasting; rhombic antenna; take-off angle; Cities and towns; Computer aided software engineering; Dipole antennas; Educational institutions; Frequency; Impedance; Leg; NASA; National electric code; Resistors;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/11.544564

Filename

544564