Title :
Monolithic Analogue Phase Shifter and Cascode FET Amplifier using Uniplanar Techniques
Author :
Lucyszyn, S. ; Robertson, I.D. ; Aghvami, A.H.
Author_Institution :
Communications Research Group., Department of Electronic and Electrical Engineering, King´´s College, University of London, Strand, London, WC2R 2LS, UK. Tel.: +44 71 873 2390; Fax: +44 71 836 4781
Abstract :
A precision millimetre-wave analogue phase shifter and a miniature Ku-band cascode FET amplifier are presented. Both MMICs are realised using uniplanar technology. The phase shifter employs a blend of coplanar waveguide and multilayer techniques. It has a worst-case rms phase error of only ± 1.0°, for all levels of relative phase shift up to 120°, across the 31 to 32 GHz frequency range. The amplifier is realised using a combination of coplanar waveguide, meandered ´thin-film´ microstrip, and lumped elements. The amplifier has an active area of only 0.9 mm2 and a measured gain of over 12 dB at 15 GHz.
Keywords :
Area measurement; Coplanar waveguides; FETs; Frequency; MMICs; Microstrip; Millimeter wave technology; Nonhomogeneous media; Phase shifters; Transistors;
Conference_Titel :
Microwave Conference, 1994. 24th European
Conference_Location :
Cannes, France
DOI :
10.1109/EUMA.1994.337268
