@inproceedings{5af1a44b800f432d9400857cfbd8a0a4,
title = "A 0.8-1.9GHz-band CMOS direct digital RF quadrature modulator",
abstract = "A 0.8-1.9 GHz direct digital radio frequency (RF) quadrature modulator is designed and fabricated in 90 nm CMOS process. The bit number and the CLK frequency of I/Q digital input signals are designed to satisfy the required EVM, ACPR/NACPR and system bandwidth for 0.9/1.9GHz W-CDMA terminals. The fabricated quadrature modulator performs EVM of less than -22.7dB, ACP/NACP of less than -36.1dBc and spurious free range of 197MHz (wider than the W-CDMA system bandwidth of 60MHz) with 8-bit, 100Msps I/Q digital input signals and the d.c. power consumption of 10mW.",
keywords = "DAC CMOS, Digital RF, Direct conversion, Microwave, Modulator, RFIC",
author = "Noriharu Suematsu and Osamu Wada and Surugu Kameda and Tadashi Takagi and Kazuo Tsubouchi",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2015 ; Conference date: 26-08-2015 Through 28-08-2015",
year = "2016",
month = jan,
day = "8",
doi = "10.1109/RFIT.2015.7377916",
language = "English",
series = "2015 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2015 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "148--150",
booktitle = "2015 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2015 - Proceedings",
address = "United States",
}