Title :
A Low-Voltage 5-GHz Quadrature Up-Conversion Mixer for Wireless Transmitter
Author :
Yeh, Mei-Ling ; Kuo, Sheng-Hing ; Liou, Wan-Rone
Author_Institution :
Dept. of Electr. Eng., St. John´´s Univ., Tamsui
Abstract :
In this paper, a low-voltage CMOS quadrature up-conversion mixer for 5-GHz wireless communication applications is designed. The simulation results demonstrate the mixer can reach a high conversion gain (CG), a low noise figure (NT), and a high linearity (IIP3). A miniature lumped- element microwave broadband rat-race hybrid and RLC shift network are used for the LO and the IF port design, respectively. The mixer exhibits a 3 dB improvement in noise and conversion gain, and the image rejection is -35 dBc. The mixer achieves noise figure of 12.8 dB, a conversion gain of 15 dB, an output third intercept point at 0 dBm, while dissipating 15 mW for operating voltage at 1 V. The mixer is designed with TSMC 0.18 um process.
Keywords :
CMOS integrated circuits; MMIC frequency convertors; MMIC mixers; bipolar MMIC; low-power electronics; radio transmitters; CMOS mixer; frequency 5 GHz; gain 15 dB; lumped-element microwave broadband rat-race hybrid network; noise figure 12.8 dB; power 15 mW; quadrature up-conversion mixer; size 0.18 mum; voltage 1 V; wireless transmitter; Frequency conversion; Image converters; Linearity; Mixers; RF signals; Radio frequency; Switches; Transconductance; Transmitters; Voltage;
Conference_Titel :
Communications, Circuits and Systems Proceedings, 2006 International Conference on
Conference_Location :
Guilin
Print_ISBN :
0-7803-9584-0
Electronic_ISBN :
0-7803-9585-9
DOI :
10.1109/ICCCAS.2006.285209
