Simple low-cost, subsystem fabrication

Hong Zhi Liu, Hou Kuei Huang, Chih Cheng Wang, Ray Jay Chiu, Che Hung Lin, Chen Kuo Chu, Mau-phon Houng, Yeong-Her Wang, Ching Hsueh Chang, Chang Luen Wu, Chian Sern Chang

研究成果: Article


An overview is given of a simple and low-cost 1.9-GHz, 25-W power amplifier developed using only one prematched 50-mm PHEMT with external matching circuits on a FR-4 PCB. As the output stage integrated with other driver stages and dc control circuits, a complete four-stage power-amplifier subsystem is also demonstrated. When operating at 38.5-dBm output power with π/4-DQPSK signal, the power-amplifier subsystem shows low distortion, with better than 75-dBc ACPR at 600 kHz and 79-dBc ACPR at 900 kHz offset from the center frequency, and is suitable for PHS 500-mW base-station applications.

頁(從 - 到)12-17
期刊IEEE Circuits and Devices Magazine
出版狀態Published - 2005 七月 1


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Electrical and Electronic Engineering


Liu, H. Z., Huang, H. K., Wang, C. C., Chiu, R. J., Lin, C. H., Chu, C. K., Houng, M., Wang, Y-H., Chang, C. H., Wu, C. L., & Chang, C. S. (2005). Simple low-cost, subsystem fabrication. IEEE Circuits and Devices Magazine, 21(4), 12-17.