A 94-GHz receiver front end for passive millimeter-wave imaging

Author

Baek, Tae-Jong ; LEE, Sang-Jin ; Baek, Yong-Hyun ; Ko, Dong-Sik ; Han, Min ; Choi, Seok-Gyu ; Lim, Hyun-Jun ; Chae, Yeon-sik ; Rhee, Jin-Koo

Author_Institution

Millimeter-wave INnovation Technol. Res. center (MINT), Dongguk Univ., Seoul, South Korea

fYear

2010

fDate

Sept. 30 2010-Oct. 1 2010

Firstpage

348

Lastpage

351

Abstract

We have designed and fabricated the passive millimetre-wave imaging system for receiving radiation energy from the an object and a human body. The lens and front-end of the receiver are important in the system to detect input thermal noise signal. Passive millimetre-wave imaging system required of high sensitivity and wide broadband to detect input thermal noise. The LNA module of the imaging system has gain of 65.8 dB in average linear gain and 11 GHz in bandwidth to enhance sensitivity for thermal noise and to receive it in wide-band width as well. The zero-bias Schottky diode has been used for the detector circuit to convert amplified millimeter-wave signals to DC output.

Keywords

MIMIC; Schottky diodes; detector circuits; low noise amplifiers; microwave amplifiers; millimetre wave imaging; radio receivers; sensitivity; signal detection; thermal noise; LNA module; amplified millimeter-wave signal; detector circuit; frequency 11 GHz; frequency 94 GHz; human body; linear gain; passive millimeter-wave imaging; radiation energy; receiver front end; sensitivity; thermal noise signal detection; wide broadband; zero-bias Schottky diode; Detectors; Gain; Horn antennas; Imaging; Millimeter wave radar; Schottky diodes;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference (EuRAD), 2010 European

Conference_Location

Paris

Print_ISBN

978-1-4244-7234-5

Type

conf

Filename

5614933