%0 Journal Article
	%A J. S. Kim and  N. P. Hong
	%D 2016
	%J International Journal of Electronics and Communication Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 112, 2016
	%T 0.13-μm CMOS Vector Modulator for Wireless Backhaul System
	%U https://publications.waset.org/pdf/10004202
	%V 112
	%X In this paper, a CMOS vector modulator designed for wireless backhaul system based on 802.11ac is presented. A poly phase filter and sign select switches yield two orthogonal signal paths. Two variable gain amplifiers with strongly reduced phase shift of only ±5 ° are used to weight these paths. It has a phase control range of 360 ° and a gain range of -10 dB to 10 dB. The current drawn from a 1.2 V supply amounts 20.4 mA. Using a 0.13 mm technology, the chip die area amounts 1.47x0.75 mm².

	%P 513 - 516