Premium
A wide‐band class‐b amplifier using tapered interdigital power combiners
Author(s) -
Tsai M. C.
Publication year - 1991
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650041111
Subject(s) - amplifier , hybrid coupler , planar , harmonics , monolithic microwave integrated circuit , power dividers and directional couplers , electrical engineering , rat race coupler , power (physics) , materials science , engineering , optoelectronics , electronic engineering , physics , computer science , voltage , computer graphics (images) , cmos , quantum mechanics
A tapered interdigital equal‐split coupler has been designed and fabricated in a planar structure. Multioctave bandwidths of equal power splits and 0° and 180° phase differences were obtained. Over 20‐dB improvement of the second harmonics generated from a Class‐B GaAs amplifier using this coupler as a combiner was demonstrated. This approach has potential applications for GaAs MMIC amplifiers and mixers.