Title :
New broadband balun structures for monolithic microwave integrated circuits
Author :
Minnis, B.J. ; Healy, M.
Author_Institution :
Philips Res. Lab., Redhill, UK
Abstract :
Two novel passive balun structures for use in MMICs (microwave monolithic integrated circuits) are described. They are especially relevant to wideband push-pull power amplifiers, being capable of handling several watts of power. They operate over bandwidths of up to 3:1 and can provide large impedance level transformations. Exact network synthesis procedures are used to generate prototypes and a three-dimensional field simulator is used to verify the corresponding physical circuits. A family of designs for 6-18 GHz and 6.15-13.5 GHz bands has been established.<>
Keywords :
MMIC; microwave amplifiers; power amplifiers; 6 to 18 GHz; MMICs; broadband balun structures; impedance level transformations; monolithic microwave integrated circuits; network synthesis procedures; passive balun structures; physical circuits; three-dimensional field simulator; wideband push-pull power amplifiers; Band pass filters; Bandwidth; Equivalent circuits; Frequency; Impedance matching; MMICs; Microwave integrated circuits; Monolithic integrated circuits; Prototypes; Resistors;
Conference_Titel :
Microwave Symposium Digest, 1991., IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-87942-591-1
DOI :
10.1109/MWSYM.1991.147026
