Title :
Design of push-pull amplifier using slot line balun with dielectric resonator
Author :
Jeong, Hyeong Tae ; Lee, Hyun Seok ; Kim, Sung Wook ; Chang, Ik Soo
Author_Institution :
Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea
Abstract :
The design of high power push-pull amplifier and unique balun structure are presented. The balun consists of a dielectric resonator and slot line. In comparison with previous balun made up with cavity fixture by G.J. Laughlin (1976), the proposed one can be easily implemented due to its simple structure. The experimental result shows that push-pull amplifier has a gain of 13.7dB at the 2.1GHz W-CDMA band. With two carrier W-CDMA signal, the push-pull amplifier achieves an efficiency of 18.8% at the 41.5dBm average output power and ACLR test results of 36.7dBc at the 5MHz offset and 43.6dBc at the 10MHz offset.
Keywords :
baluns; dielectric resonators; microwave power amplifiers; slot lines; 10 MHz; 13.7 dB; 2.1 GHz; 5 MHz; W-CDMA band; cavity fixture; dielectric resonator; push-pull amplifier; slot line balun; two carrier W-CDMA signal; Conducting materials; Dielectric substrates; Fixtures; High power amplifiers; Impedance matching; Microstrip; Multiaccess communication; Power amplifiers; Radiofrequency amplifiers; Silver;
Conference_Titel :
Microwave Symposium Digest, 2004 IEEE MTT-S International
Print_ISBN :
0-7803-8331-1
DOI :
10.1109/MWSYM.2004.1339010
