An analysis of the complex fit normalized site attenuation method

Author

Foegelle, Michael D.

Author_Institution

ETS-Lindgren, Cedar Park, TX, USA

Volume

1

fYear

2002

fDate

19-23 Aug. 2002

Firstpage

23

Abstract

The complex fit normalized site attenuation (CFNSA) method was introduced in 2000 as an enhancement to the normalized site attenuation (NSA) model used in ANSI C63.4 and C63.5. The simple dipole NSA model is insufficient to predict the behavior of complex antennas like log periodic dipole arrays (LPDAs) and horns. Thus, NSA measurements made with these antennas using free-space antenna factors can have significant deviations from that predicted by the model. The CFNSA model is a modification to the simple dipole NSA model to account for the variations in antenna pattern and phase center that are possible in complex antennas. This paper evaluates the effectiveness of the phase center/pattern matching (PCPM) method previously proposed, as well as the use of directly measured pattern and phase center information, for a variety of antenna types.

Keywords

ANSI standards; antenna radiation patterns; antenna testing; attenuation measurement; dipole antenna arrays; log periodic antennas; open area test sites; ANSI C63.4; ANSI C63.5; OATS; antenna pattern variations; complex antennas behaviour prediction; dipole model; free-space antenna factors; log periodic dipole arrays; normalized site attenuation method; open area test site; phase center; phase center/pattern matching method; Antenna accessories; Antenna measurements; Attenuation; Dipole antennas; Frequency; Log periodic antennas; Personal communication networks; Predictive models; Receiving antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2002. EMC 2002. IEEE International Symposium on

Conference_Location

Minneapolis, MN, USA

Print_ISBN

0-7803-7264-6

Type

conf

DOI

10.1109/ISEMC.2002.1032441

Filename

1032441