Title :
The design of a 6-port active circulator
Author_Institution :
ITT, Roanoke, VA, USA
Abstract :
An approach is presented for realizing circulators in the form of GaAs monolithic microwave integrated circuits (MMICs) without using any ferrite material and external magnets. The configuration is known as an active circulator and is suitable for system applications where a fully integrable, lightweight, and small-size subsystem is required. The circuit is capable of providing 0 dB loss, and return loss and isolation of better than 16 dB and 23 dB, respectively, over an octave or higher bandwidth.<>
Keywords :
III-V semiconductors; circulators (microwave); gallium arsenide; microwave integrated circuits; monolithic integrated circuits; 16 dB; 6-port; GaAs; III-V semiconductor; MMICs; active calculator; monolithic microwave integrated circuits; return loss; Bandwidth; Directional couplers; Ferrites; Gallium arsenide; Hybrid integrated circuits; Isolation technology; Isolators; MMICs; Magnetic materials; Microwave integrated circuits;
Conference_Titel :
Microwave Symposium Digest, 1988., IEEE MTT-S International
Conference_Location :
New York, NY, USA
DOI :
10.1109/MWSYM.1988.22202
