Title :
24 GHz transceiver front-end with two RX-channels
Author :
Winkler, Wolfgang ; Debski, Wojciech ; Genschow, Dieter ; Kraemer, Rolf
Author_Institution :
Silicon Radar GmbH, Frankfurt (Oder), Germany
Abstract :
The paper presents a transceiver front-end MMIC intended for the operation in the license free ISM band from 24 GHz to 24.25 GHz and in the UWB band around 24 GHz. The radar principle is FMCW or Doppler. The chip comprises one transmitter with voltage controlled oscillator, power amplifier and two receivers with low-noise-amplifier (LNA) with gain control, quadrature mixers and poly-phase filter each. The functionality inside the chip is controlled via digital control interfaces for power and gain control. For frequency stabilization, an external PLL can be implemented in the radar system. For this, a frequency divider is integrated acting as prescaler. The chip is fabricated in SiGe BiCMOS technology with a chip area of 1.4 × 1.1 mm2.
Keywords :
BiCMOS analogue integrated circuits; CW radar; Doppler radar; FM radar; MMIC mixers; MMIC oscillators; MMIC power amplifiers; digital control; gain control; low noise amplifiers; microwave receivers; power control; radar receivers; radio transceivers; ultra wideband radar; voltage-controlled oscillators; wireless channels; BiCMOS technology; Doppler radar; FMCW radar; PLL; RX-channels; SiGe; UWB band; digital control interface; frequency 24 GHz to 24.25 GHz; frequency divider; frequency stabilization; gain control; license free ISM band; low noise amplifier; polyphase filter; power amplifier; power control; quadrature mixer; transceiver front-end MMIC; voltage controlled oscillator; Frequency shift keying; Gain; Oscillators; Radar; Receivers; Tuning; FMCW; SiGe-MMIC; radar transceiver;
Conference_Titel :
Microwave Conference (GeMiC), 2012 The 7th German
Conference_Location :
Ilmenau
Print_ISBN :
978-1-4577-2096-3
Electronic_ISBN :
978-3-9812668-4-9
