Title :
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
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;
Conference_Titel :
Microwave Symposium Digest, 2008 IEEE MTT-S International
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1780-3
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2008.4633181
