Please use this identifier to cite or link to this item: http://rportal.lib.ntnu.edu.tw:80/handle/77345300/32274
Title: A 25-55 GHz CMOS sub-harmonic direct-conversion mixer for BPSK demodulator
Authors: 國立臺灣師範大學應用電子科技學系
Jeng-Han Tsai
Chieh-Cheng Wang
Issue Date: 20-Dec-2008
Abstract: In this paper, a sub-harmonic direct-conversion Gilbert-cell mixer using 0.13-frac14m CMOS technology for BPSK demodulator is presented. For sub-harmonically pumping, a four-way quadrature divider using 90deg coupler and 180deg balun is implemented in the CMOS process [6]. For wide bandwidth, distributed transconductance stage design and high impedance compensation line are incorporated into the sub-harmonic Gilbert-cell design. The presented sub-harmonic Gilbert-cell mixer achieves an excellent conversion gain flatness of-5.5 plusmn1.5 dB from 25 to 55 GHz. Finally, the direct-conversion sub-harmonic Gilbert-cell mixer is used as a BPSK demodulator and features good demodulation quality.
URI: http://rportal.lib.ntnu.edu.tw/handle/77345300/32274
Other Identifiers: ntnulib_tp_E0611_02_015
Appears in Collections:教師著作

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