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High Conversion Gain Millimeter-wave Monolithic Subharmonic Mixer With Cascode Harmonic Generator  

An, Dan (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ)
Kim, Sung-Chan (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ)
Sul, Woo-Suk (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ)
Han, Hyo-Jong (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ)
Lee, Han-Shin (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ)
Uhm, Won-Young (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ)
Park, Hyung-Moo (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ)
Kim, Sam-Dong (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ)
Rhee, Jin-Koo (Millimeterwave INnovation Technology research center(MINT), Dongguk Univ)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.40, no.5, 2003 , pp. 197-203 More about this Journal
Abstract
In this paper, we have presented millimeter-wave high conversion gain quadruple subharmonic mixers adopting the cascode harmonic generator The subharmonic mixers were successfully integrated by using 0.1 ${\mu}{\textrm}{m}$ GaAs pseudomorphic HEMTs(PHEMTs) and coplanar waveguide(CPW) structures. Measured output of 1st, 2nd and 4th harmonics of the fabricated cascode 4th harmonic generator are -21.42 dBm, -32.65 dBm and -13.45 dBm, respectively, for an input power of 10 dBm at 14.5 GHz. We showed that the highest conversion gain of 3.4 dB has obtained thus far at a LO power of 13 dBm from the fabricated subharmonic mixers. The millimeter-wave subharmonic mixer also ensure a high degree of isolation showing -53.6 dB in the LO-to-IF and -46.2 dB in the LO-to-RF, respectively, at a frequency of 14.5 GHz. The high conversion gain achieved in this work is the first report among the millimeter-wave subharmonic mixers.
Keywords
cascode harmonic generator; MIMIC; subharmonic mixer; conversion gain;
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