A Low-Cost PC Controlled System for Measurement of Vector Reflection Coefficient in ISM Band

Author

Krok, Marek ; Gwarek, Wojciech

Author_Institution

Warsaw Univ. of Technol., Warsaw

fYear

2006

Firstpage

33

Lastpage

36

Abstract

This paper describes design of a prototype of a very low-cost ISM band reflectometer for measurement of a vector reflection coefficient. The device is based on integrated circuit AD8302 by Analog Devices. Switched phase shifter is used to resolve the problem of ambiguity of the sign of the phase shift. The system is controlled by a dedicated digital circuit and PC user interface. The system was designed for the band 2.3 GHz to 2.6 GHz as an inexpensive measurement alternative in manufacturing and maintenance of heating and telecommunication systems in that band. The paper provides accuracy analysis indicating the accuracy levels which can be expected from devices of that class.

Keywords

computerised instrumentation; microcomputers; microwave phase shifters; microwave reflectometry; reflectometers; AD8302; ISM band reflectometer; PC controlled system; PC user interface; analog devices; digital circuit; frequency 2.3 GHz to 2.6 GHz; integrated circuit; phase shifter; vector reflection coefficient; Analog integrated circuits; Control systems; Digital circuits; Integrated circuit measurements; Manufacturing; Phase shifters; Prototypes; Reflection; Telecommunication control; User interfaces;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwaves, Radar & Wireless Communications, 2006. MIKON 2006. International Conference on

Conference_Location

Krakow

Print_ISBN

978-83-906662-7-3

Type

conf

DOI

10.1109/MIKON.2006.4345099

Filename

4345099