%0 Journal Article
%@ 1558-1764
%A Vu, Tuan Anh
%A Takano, Kyoya
%A Fujishima, Minoru
%D 2018
%F SisLab:2926
%J IEEE Microwave and Wireless Components Letters
%N 4
%P 341-343
%T 300-GHz Balanced Varactor Doubler in Silicon CMOS for Ultrahigh-Speed Wireless Communications
%U https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2926/
%V 28
%X This letter presents a 300 GHz transmitter front-end suitable for ultrahigh-speed wireless communications. The transmitter front-end realized in TSMC 40 nm CMOS consists of a varactor based doubler driven by a three-stage D-band power amplifier (PA). Measurement results show that the D-band PA obtains a saturated power of 6.1 dBm and a power added efficiency (PAE) of 4.3%. The balanced varactor doubler results in an output power of -12 dBm at 300 GHz. The transmitter front-end consumes a total DC power of 72.9 mW from a 0.9 V supply voltage while it occupies an area of 0.72 mm2.