Title :
A compact 94 GHz FMCW radar MMIC based on 100 nm InGaAs mHEMT technology with integrated transmission signal conditioning
Author :
Zech, Christian ; Hulsmann, A. ; Weber, R. ; Tessmann, A. ; Wagner, Steffen ; Schlechtweg, Michael ; Leuther, A. ; Ambacher, Oliver
Author_Institution :
Fraunhofer Inst. for Appl. Solid State Phys. (IAF), Freiburg im Breisgau, Germany
Abstract :
In this paper, a compact 94 GHz frequency-modulated continuous-wave (FMCW) radar monolithic microwave integrated circuit (MMIC) is presented. Besides the components required for radar application, the MMIC further offers a conditioning subcircuit for the transmitted signal, consisting of a frequency multiplier for upconversion of an external signal source and a variable gain power amplifier (VGPA) to adjust the RF output power. The achieved maximum output power is 8 dBm with a high dynamic range of 30 dB. The MMIC has a size of 2mm × 4mm and is based on our in-house 100nm InGaAs metamorphic high electron mobility transistor (mHEMT) process. The design will be discussed and measurement results of the fabricated MMIC will be presented. The MMIC can be used for integration in compact W-band radar or signal source systems.
Keywords :
CW radar; FM radar; III-V semiconductors; arsenic compounds; frequency multipliers; gallium compounds; high electron mobility transistors; indium compounds; millimetre wave radar; power amplifiers; signal conditioning circuits; signal sources; FMCW radar MMIC; FMCW radar monolithic microwave integrated circuit; InGaAs; InGaAs mHEMT technology; MMIC further; RF output power; VGPA; compact W-band radar; conditioning subcircuit; fabricated MMIC; frequency 94 GHz; frequency multiplier; frequency-modulated continuous-wave; integrated transmission signal conditioning; mHEMT process; metamorphic high electron mobility transistor process; radar application; signal source system; size 100 nm; transmitted signal; upconversion; variable gain power amplifier; Chirp; Couplers; Frequency measurement; Frequency modulation; HEMTs; Logic gates; Radio frequency;
Conference_Titel :
Microwave Integrated Circuits Conference (EuMIC), 2013 European
Conference_Location :
Nuremberg
