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This paper presents a high-efficiency 165-GHz ON–OFF keying transmitter in a 65-nm CMOS technology with the record efficiency to the best of our knowledge. This is due to the proposed holistic design and optimization procedure, which links all the performance and figure-of-merits to the device sizes, including both actives and passives. This transmitter includes a high-efficiency transformer-based...
In this paper, a direct IQ modulator MMIC for high speed E-band wireless communication is presented. The IQ modulator consists of two balanced resistive mixer cells, on-chip marchand balun and two Lange couplers for quadrature LO signal generation. When operating as a single side band mixer, it shows conversion loss of 11 dB and side-band suppression higher than 20 dB. LO to RF isolation has been...
In the traditional P parameters algorithm based on single channel, a certain carrier residual excursion must be retained. However, the residual excursion is not beneficial to the later recognition and demodulation process at a low-frequency stage. In order to overcome these shortcomings, an algorithm based on inphase and quadrature channels for USB (upper sideband modulation), LSB (lower sideband...
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