Title :
A 200 GHz active heterodyne receiver MMIC with low sub-harmonic LO power requirements for imaging frontends
Author :
Kallfass, I. ; Tessmann, A. ; Massler, H. ; Leuther, A. ; Schlechtweg, M. ; Ambacher, O.
Author_Institution :
Fraunhofer Inst. for Appl. Solid-State Phys. (IAF), Freiburg, Germany
Abstract :
This paper presents the design and performance of a 200 GHz, sub-harmonically-pumped, heterodyne receiver MMIC realized in 100 nm metamorphic HEMT technology. The lownoise amplifier stage sets the receiver noise figure to 7 dB and, in combination with the resistive down-conversion mixer, allows for an overall conversion gain of 7 dB at 200 GHz RF frequency. The mixer LO port is driven by a frequency doubler and buffer amplifier stage. We use an integrated LO driver amplifier stage with two parallel cascode amplifiers to achieve the operation of the circuit with as low as -13 dBm LO power provided at 100 GHz, thus making the receiver MMIC suitable for multichannel imaging frontends.
Keywords :
MMIC; buffer circuits; frequency multipliers; high electron mobility transistors; low noise amplifiers; mixers (circuits); buffer amplifier; frequency 100 GHz; frequency 200 GHz; frequency doubler; heterodyne receiver MMIC; local oscillator power; low noise amplifier; metamorphic HEMT technology; multichannel imaging frontends; noise figure 7 dB; parallel cascode amplifier; resistive down-conversion mixer; Frequency conversion; Gain; Low-noise amplifiers; MMICs; Mixers; Noise figure; Operational amplifiers; Radio frequency; Radiofrequency amplifiers; mHEMTs; G-band; MMICs; mHEMT; millimeter-wave frequency conversion; millimeter-wave heterodyne receiver; millimeter-wave subharmonic mixer;
Conference_Titel :
Microwave Integrated Circuits Conference, 2009. EuMIC 2009. European
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4749-7
