Title :
Millimeter-wave 4∶1 Transformer-based balun design for CMOS RF IC´s
Author :
Liwen Jing ; Li, Alvin ; Luo, Duona ; Rowell, Corbett R. ; Yue, C. Patrick
Author_Institution :
Hong Kong Univ. of Sci. & Technol., Hong Kong, China
fDate :
March 30 2015-April 1 2015
Abstract :
This paper presents a compact 4:1 ratio transformer-based balun design in 65-nm CMOS process. The insertion loss is lower than 1.5 dB from 56 GHz to 64 GHz. The balun also serves as a matching network between the output of mixer and chip output terminal. By choosing appropriate inductance ratio and mutual coupling coefficient, the impedance transforms from (52.9+j85.8) Ω to (29.1+j4.7) Ω. Cascade ABCD parameter de-embedding technique is applied to remove the connection parasitic effects in the testing structure.
Keywords :
CMOS integrated circuits; baluns; radio networks; CMOS RF IC; CMOS process; balun design; cascade ABCD parameter deembedding technique; chip output terminal; impedance transforms; inductance ratio; insertion loss; millimeter wave; mixer output terminal; mutual coupling coefficient; transformer; CMOS integrated circuits; Frequency measurement; Impedance; Impedance matching; Power transmission lines; Transmission line measurements; Windings; CMOS; balun; impedance matching; millimeter wave devices;
Conference_Titel :
Wireless Symposium (IWS), 2015 IEEE International
Conference_Location :
Shenzhen
DOI :
10.1109/IEEE-IWS.2015.7164519
