Title :
A 77-GHz Receiver Front End for Passive Imaging
Author :
Powell, Johnna ; Kim, Helen ; Sodini, Charles G.
Author_Institution :
Massachusetts Inst. of Technol., Cambridge
Abstract :
A Wideband 77-GHz Front End Receiver for Passive Imaging has been designed and characterized. This system comprises a fully differential LNA, double-balanced mixer and VCO. The LNA achieves 4.9-6.0 dB NF, 18-26 dB gain, and S11, S22 of -13.0 and -12.8 dB, respectively. The double-balanced mixer achieves 12-14 dB NF, 20-26 dB conversion gain and -26 dBm PldB (input-referred). The VCO achieves output power from -2 to 0 tlBm with phase noise of ~-93 dBc/Hz at 72 GHz, and approximately 3 GHz of tuning range. The receiver achieves 40-46 dB max conversion gain, output-referred P1dB of 2 dBm and power dissipation of 195 mW.
Keywords :
image sensors; millimetre wave imaging; millimetre wave receivers; VCO; differential LNA; double-balanced mixer; frequency 72 GHz; frequency 77 GHz; passive imaging; receiver front end; wideband front end receiver; Gain; Germanium silicon alloys; Impedance matching; Millimeter wave integrated circuits; Millimeter wave radar; Millimeter wave technology; Noise measurement; Silicon germanium; Voltage-controlled oscillators; Weapons; 77-GHz circuits; Concealed Weapons Detection; LNA; Millimeter-wave; Mixer; SiGe; VCO;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0530-0
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2007.380852
