Title :
A low-noise 2.5 THz heterodyne receiver with tunable reflector antenna for atmospheric OH-spectroscopy
Author :
Nitsche, R.G. ; Titz, R.U. ; Biebl, E.M.
Author_Institution :
Inst. fur Hochfrequenztech., Tech. Univ. Munchen, Germany
Abstract :
For atmospheric research reliable low-noise receivers are necessary. In this paper we present a novel low-noise heterodyne receiver for 2.5 THz. A Schottky diode, the mixer key element, is embedded in a planar structure for optimized coupling to a low-noise broadband amplifier. The corner cube antenna can be tuned for optimal coupling to the local oscillator.
Keywords :
atmospheric composition; atmospheric measuring apparatus; demodulation; oxygen compounds; reflector antennas; remote sensing; spectrochemical analysis; submillimetre wave antennas; submillimetre wave receivers; submillimetre wave spectroscopy; 2.5 THz; OH; Schottky diode mixer; atmospheric OH spectroscopy; broadband amplifier; corner cube antenna; local oscillator; low-noise heterodyne receiver; planar structure; tunable reflector antenna; Bandwidth; Chemistry; Contacts; Frequency; Mirrors; Receiving antennas; Reflector antennas; Schottky diodes; Temperature; Wire;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.700714
