Title :
A linear differential IQ modulator with LO chain for E-band wireless communication
Author :
Jian Zhang ; Yu Ye ; Rui Tong ; Xiaowei Sun
Author_Institution :
Key Lab. of Terahertz Solid-State Technol., Shanghai Inst. of Micro-Syst. & Inf. Technol., Shanghai, China
Abstract :
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 measured to be more than 30 dB.
Keywords :
MMIC mixers; baluns; modulators; wireless channels; LO chain; Lange couplers; balanced resistive mixer cells; direct IQ modulator MMIC; high speed E-band wireless communication; linear differential IQ modulator; loss 11 dB; on-chip marchand balun; quadrature LO signal generation; Frequency measurement; Frequency modulation; Harmonic analysis; Mixers; Radio frequency; Semiconductor device measurement; E-band; GaAs; IQ; MMIC; PHEMT; Resistive mixer; differential amplifiers; modulator;
Conference_Titel :
Wireless Symposium (IWS), 2014 IEEE International
Conference_Location :
X´ian
DOI :
10.1109/IEEE-IWS.2014.6864250
