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This paper presents the design and characterization of a V-band radiometer MMIC with 0.10 µm GaAs pHEMT technology. The circuit includes a resistive image reject mixer and a ×4 frequency multiplier LO chain. The ×4 frequency multiplier gives higher than 5 dBm output power over 48–56 GHz. The CL (Conversion loss) of the radiometer measured as an average of 8.5 dB with ripple less than 0.4 dB. The circuit...
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 this paper, a highly integrated direct conversion receiver MMIC for high speed E-band wireless communication is presented. The receiver consists of 3-stages LNA, doubler with buffer amplifier, and IQ-mixer. The LNA, doubler and IQ-mixer are also presented separately. The LNA covers 75 to 90 GHz with 15 dB gain and a simulated minimum 5 dB noise figure; doubler covers 75 to 90 GHz with 8 to 12 dBm...
In this paper, a resistive single side-band (SSB) up-converter implemented for high speed E-band wireless communication is presented. The SSB up-converter consists of two resistive IQ mixer cells, on-chip Marchand balun and two Lange couplers for quadrature LO signal generation. The Marchand balun is designed with common-mode rejection to achieve better in-band amplitude and phase balanced behavior...
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