Title :
Millimetre-wave CPS distributed analogue MMIC phase shifter
Author :
Kim, Hong-Teuk ; Lee, Sanghyo ; Kim, Sungwon ; Kwon, Youngwoo ; Seo, Kwang-Seok
Abstract :
A millimetre-wave coplanar strip (CPS) analogue distributed MMIC phase shifter is reported for the first time. Since this phase shifter is based on a balanced CPS line, no extra mode transition structure is required for integration with the balanced circuits using CPS or slot lines as well as for packaging in the waveguides. Schottky varactor diodes between the coplanar strip lines are used to control the line capacitance of a synthetic CPS line as a phase shifter, resulting in phase shift. The fabricated phase shifter showed maximum phase shift of 110° and insertion loss of 5.6 dB at 60 GHz
Keywords :
MMIC phase shifters <millimetre-wave CPS distrib. analogue MMIC phase shifter>; capacitance <millimetre-wave CPS distrib. analogue MMIC phase shifter>; coplanar transmission lines <millimetre-wave CPS distrib. analogue MMIC phase shifter>; millimetre wave phase shifters <CPS distrib. analogue MMIC phase shifter>; strip line transitions <millimetre-wave CPS distrib. analogue MMIC phase shifter>; 5.6 dB; 60 GHz; Schottky varactor diodes; analogue distributed MMIC phase shifter; back-to-back transitions; balanced line; coplanar strip phase shifter; line capacitance; millimetre-wave phase shifter; on-wafer measurement; surface wave leakage; ultra-broadband CPS-to-CPW transition;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20031060
