Title :
The Optimized Geometry of the SiGe HBT Power Cell for 802.11a WLAN Applications
Author :
Lin, Chien-Hsun ; Su, Yan-Kuin ; Juang, Ying-Zong ; Chiu, Chin-Fong ; Chang, Shoou-Jinn ; Chen, Jone F. ; Tu, Chih-Ho
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan
Abstract :
A novel SiGe heterojunction bipolar transistor power cell for wireless LAN IEEE 802.11a power amplifier (PA) applications is proposed. The subcells with different emitter stripe widths have been compared. Besides, the layout of a novel power cell is designed and optimized to alleviate nonideal effects for better performance. Compared with the performance of power cells, it is demonstrated that this novel power cell is superior to other power cells for the design of the PA
Keywords :
Ge-Si alloys; IEEE standards; heterojunction bipolar transistors; power amplifiers; power bipolar transistors; wireless LAN; 802.11a WLAN; SiGe HBT power cell; SiGe heterojunction bipolar transistor power cell; power amplifier; wireless LAN IEEE 802.11a; Design optimization; Geometry; Germanium silicon alloys; Heterojunction bipolar transistors; Performance gain; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Silicon germanium; Wireless LAN; Power amplifier (PA); SiGe heterojunction bipolar transistor (HBT); WLAN;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.887257
