Title :
Ultra-wideband MMICs for remote sensing applications
Author :
Johansen, Tom K. ; Vidkjær, Jens ; Krozer, Viktor
Author_Institution :
Dept. of Electromagn. Syst., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
This paper presents an overview of the current activity at the Technical University of Denmark in the field of ultra-wideband monolithic microwave integrated circuits (MMICs) for next generation high resolution synthetic aperture radar (SAR) systems. The transfer function requirements for MMIC components in a wideband SAR system are described. The design and performance of a DC-to-X-band SiGe HBT quadrature mixer and a C-band GaAs pHEMT downconverter are described. Experimental results demonstrate the usefulness of the designs for quadrature modulations/demodulation and downconversion of ultra-wideband linear FM-modulated signals.
Keywords :
III-V semiconductors; MMIC; gallium arsenide; integrated circuit design; remote sensing; silicon compounds; synthetic aperture radar; C-band pHEMT downconverter; DC-to-X-band HBT quadrature mixer; GaAs; SiGe; Technical University of Denmark; high resolution SAR systems; linear FM-modulated signals; monolithic microwave integrated circuits; quadrature modulation-demodulation; remote sensing; synthetic aperture radar; transfer function; ultra-wideband MMIC; Germanium silicon alloys; Integrated circuit synthesis; MMICs; Microwave integrated circuits; Monolithic integrated circuits; Remote sensing; Silicon germanium; Synthetic aperture radar; Transfer functions; Ultra wideband technology;
Conference_Titel :
Microwave Conference, 2003. 33rd European
Print_ISBN :
1-58053-834-7
DOI :
10.1109/EUMC.2003.1263030
