Title :
A novel LNA-mixer design with on-chip balun
Author :
Chen, Hsien-Ku ; Sha, J.R. ; Lee, Sung-Huang ; Chang, Da-Chiang ; Juang, Ying-Zong ; Chin-Fong Chin
Author_Institution :
National Appl. Res. Labs., National Chip Implementation Center, Hsinchu
Abstract :
In this paper, the design and application of an on-chip transformer balun for RFIC has presented. Single-ended primary and differential secondary are constructed without using three individual windings for simple layout. Besides, this new topology has the same physical common visual ground point for second winding, which eliminates imbalance due to potential difference at the ground from conventional trifilar. Furthermore, this new on-chip balun is successfully applied in the integration of 5.8-GHz LNA-mixer implemented on SiGe 0.35-mum BiCMOS process then achieves 4.15-dB noise figure (NF), 34.61-dB conversion gain, and -9.5-dBm input third-order intercept-point with low power consumption of 9-mW
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; baluns; low noise amplifiers; microwave amplifiers; microwave mixers; radiofrequency integrated circuits; 0.35 micron; 34.61 dB; 4.15 dB; 5.8 GHz; 9 mW; LNA-mixer design; RFIC; SiGe; SiGe BiCMOS process; conversion gain; input third-order intercept-point; low power consumption; noise figure; on-chip balun; on-chip transformer balun; visual ground point; BiCMOS integrated circuits; Electrical equipment industry; Energy consumption; Germanium silicon alloys; Impedance matching; Laboratories; Noise measurement; Radiofrequency integrated circuits; Silicon germanium; Topology; LNA; Mixer; SiGe; balun; receiver; single-ended RF input; transformer;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693747
