Title :
A low-loss planar microwave balun with an integrated bias scheme for push-pull amplifiers
Author :
Jong-Wook Lee ; Webb, K.J.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
We report a new planar low loss microstrip balun with radial stub RF grounding. This structure achieves a good RF ground for a Marchand-type balun and facilitates microstrip balun characterization. Moreover, a simplified biasing scheme for a push-pull amplifier was designed using this concept and this approach has been used successfully in a push-pull amplifier. The measured balun insertion loss was less than 0.5 dB over a 5-11 GHz band.
Keywords :
baluns; losses; microstrip components; microwave amplifiers; microwave integrated circuits; 0.5 dB; 5 to 11 GHz; AlN; Marchand-type balun; RF ground; SHF; balun characterization; balun insertion loss; integrated bias scheme; low-loss microwave balun; microstrip balun; planar microwave balun; push-pull amplifiers; radial stub RF grounding; Capacitance; Coupling circuits; Grounding; Impedance matching; Insertion loss; Loss measurement; Microstrip; Microwave amplifiers; Radio frequency; Radiofrequency amplifiers;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.966870
