Low-cost high-resolution handheld VNA using RF interferometry

Author

Will, Karl ; Meyer, Tobias ; Omar, Abbas

Author_Institution

Chair of Microwave and Communication Engineering, Otto-von-Guericke-University of Magdeburg, P.O.Box 4120, 39016, Germany

fYear

2008

fDate

15-20 June 2008

Firstpage

375

Lastpage

378

Abstract

A low-cost vector network analyzer (VNA) using a novel measurement technique is presented in this paper. The phase measurement is based on RF interferometry. A multiple output direct digital synthesizer (DDS) and low-cost scalar detectors are used for high-resolution phase measurements. A hardware example working up to a frequency of 150 MHz and having board dimensions of only 10 cm times 6 cm is introduced. The accuracy is demonstrated by measurements and compared to a commercially available VNA using heterodyne detectors.

Keywords

direct digital synthesis; interferometry; phase measurement; portable instruments; RF interferometry; direct digital synthesizer; high-resolution handheld vector network analyzer; high-resolution phase measurements; low-cost handheld vector network analyzer; low-cost scalar detectors; Clocks; Detectors; Hardware; Interferometry; Measurement techniques; Phase detection; Phase measurement; Radio frequency; Testing; Voltage; VNA; handheld; interferometry; network analysis; phase measurement; vector network analyzer;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2008 IEEE MTT-S International

Conference_Location

Atlanta, GA

ISSN

0149-645X

Print_ISBN

978-1-4244-1780-3

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2008.4633181

Filename

4633181