Title :
Millimetre-wave wideband reflection-type CPW MMIC phase shifter
Author :
Kim, Hong-Teuk ; Kim, Dae-Hyun ; Kwon, Youngwoo ; Seo, Kwang-Seok
Author_Institution :
Dept. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
4/11/2002 12:00:00 AM
Abstract :
A reflection-type coplanar waveguide (CPW) phase shifter fabricated using a standard monolithic microwave integrated circuit (MMIC) process is presented. Air-gap overlay CPW couplers were employed for wideband 3 dB coupling and low loss at millimetre wave. The two-stage cascaded analogue phase shifter showed insertion losses of 6.9 ± 1.6 dB, return losses > 10 dB, and maximum rms phase error of +5.5° for the relative phase shift from -20° to 135°, over a wideband 27 to 47 GHz
Keywords :
MMIC phase shifters; cascade networks; coplanar waveguide components; millimetre wave phase shifters; waveguide couplers; 27 to 47 GHz; 3 dB coupling; 5.3 to 7.4 dB; MMIC phase shifter; air-gap overlay CPW couplers; insertion losses; millimetre-wave wideband reflection-type phase shifter; return losses; rms phase error; two-stage cascaded analogue phase shifter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020256
