Title :
A parallel connected Marchand balun using spiral shaped equal length coupled lines
Author :
Shimozawa, M. ; Itoh, K. ; Sasaki, Y. ; Kawano, H. ; Isota, Y. ; Ishida, O.
Author_Institution :
Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kanagawa, Japan
Abstract :
This paper presents a 6-20 GHz broadband planar monolithic balun. To get a broadband characteristic without narrow spaced coupled transmission lines, a parallel connected Marchand balun with spiral shaped equal length coupled lines are used. A developed monolithic balun achieves the maximum insertion loss of 5 dB including 3 dB power splitting loss from 6 to 20 GHz.
Keywords :
baluns; coupled transmission lines; 5 dB; 6 to 20 GHz; Marchand balun; broadband planar monolithic balun; insertion loss; parallel connection; power splitting loss; spiral shaped coupled transmission lines; Capacitance; Coupling circuits; Degradation; Impedance matching; Information technology; Insertion loss; Joining processes; Power transmission lines; Research and development; Spirals;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.780307
