Title :
Using a Phase-Locked Backward-Wave Oscillator (BWO) to Extend the Dynamic Range of a Vector Network Analyzer at Submillimetre Wavelengths
Author :
Saily, Jussi ; Mallat, Juha ; Raisanen, Antti V.
Author_Institution :
Radio Laboratory, MilliLab, Helsinki University of Technology, P.O.Box 3000, FIN-02015 HUT, Finland. Tel.:+358-9-451 2939, Fax:+358-9-451 2152, Email: Jussi.Saily@hut.fi
Abstract :
The design and construction of a submillimetre wave phase-locked backward-wave oscillator source and its application for extending the dynamic range of a vector network analyzer are presented. Measured dynamic range improvement with this new source system over a frequency-multiplied Gunn oscillator varies between 16-20 dB over the frequency range of 300-400 GHz. Estimated improvement based on the power level difference at 700 GHz is about 40 dB.
Keywords :
Bandwidth; Circuit simulation; Dynamic range; Frequency measurement; Oscillators; Phase locked loops; Phase measurement; Power harmonic filters; Resistors; Testing;
Conference_Titel :
Microwave Conference, 2001. 31st European
Conference_Location :
London, England
DOI :
10.1109/EUMA.2001.338916
