Error Vector Magnitude Measurement On Cascaded Butler Matrices System

Author

Rahim, S.K.A. ; Gardner, Peter

Author_Institution

Dept. of Electron., Univ. of Birmingham, Birmingham

fYear

2007

fDate

11-14 Dec. 2007

Firstpage

1

Lastpage

3

Abstract

This paper describes error vector magnitude (EVM) measurement on vehicle communication system that employs low noise amplifiers (LNAs) and cascading Butler Matrices in producing broad beam high linearity and high gain narrow beam system. The output signals from the first Butler Matrix that have high gain and narrow beam width can be used for long distance communication while the outputs from the second Butler Matrix, which have high linearity, and broad beam width can be used for short range communications.

Keywords

UHF measurement; adaptive antenna arrays; automotive electronics; cascade networks; low noise amplifiers; mobile communication; LNA; cascaded Butler matrices system; error vector magnitude measurement; linear system; long distance communication; low noise amplifiers; narrow beam system; vehicle communication system; Butler matrix; Computer errors; Constellation diagram; Electric variables measurement; Gain measurement; Linearity; Microwave measurements; Noise measurement; Power dividers; Vehicles; Butler Matrix; Error Vector Magnitude; Low Noise Amplifiers; component;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2007. APMC 2007. Asia-Pacific

Conference_Location

Bangkok

Print_ISBN

978-1-4244-0748-4

Electronic_ISBN

978-1-4244-0749-1

Type

conf

DOI

10.1109/APMC.2007.4554624

Filename

4554624