Title :
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
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;
Conference_Titel :
Microwaves, Radar & Wireless Communications, 2006. MIKON 2006. International Conference on
Conference_Location :
Krakow
Print_ISBN :
978-83-906662-7-3
DOI :
10.1109/MIKON.2006.4345099
