Antenna-Pattern Measurement Using Spectrum Analyzer for Systems with Frequency Translation [Measurements Corner]

Author

Farzaneh, Sadegh ; Ozturk, Alper K. ; Sebak, Abdel Razik ; Paknys, Robert

Author_Institution

Polygram Res. Center, Ecole Polytech. de Montreal, Montreal, QC, Canada

Volume

51

Issue

3

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

126

Lastpage

131

Abstract

Pattern measurements using a network analyzer are typically based on measuring the transmission coefficient, S₂₁. When the transmitting and receiving frequencies are different, it is not possible to directly measure the antenna pattern using a network analyzer. In this paper, an antenna-pattern measurement system using a spectrum analyzer, designed to measure the radiation pattern of an antenna with a microwave sampling beamformer (MSBF) structure, is presented. A synthesized oscillator was used as the transmitter in the measurement setup. The instruments were controlled through GPIB by a program specifically designed for the system. High-quality pattern measurements were obtained for several antenna types. The measurement results were verified using HFSS simulations.

Keywords

antenna radiation patterns; array signal processing; spectral analysers; antenna-pattern measurement; frequency translation; microwave sampling beamformer; spectrum analyzer; synthesized oscillator; transmission coefficient; Antenna measurements; Antenna radiation patterns; Frequency measurement; Microwave antennas; Microwave measurements; Pattern analysis; Receiving antennas; Sampling methods; Spectral analysis; Transmitting antennas; Anechoic chambers (electromagnetic); antenna measurements; antenna radiation patterns; beam steering; frequency conversion; microwave sampling beamformer; spectrum analyzer;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/MAP.2009.5251209

Filename

5251209