Title :
A 320–360 GHz Sub-Harmonically pumped Image-Rejection Mixer for earth observation applications
Author :
Rea, Simon P. ; Thomas, Bertrand ; Matheson, David N.
Author_Institution :
EADS Astrium, Portsmouth
Abstract :
We report on the development of a 320-360 GHz sub-harmonically pumped image-rejection mixer (SHIRM). The device incorporates two anti-parallel pairs of planar Schottky diodes flip-chip mounted onto a single quartz-based microstrip circuit. Measurements provide a best SSB receiver noise temperature of 3300 K and a side-band ratio between 7.2-23.2 dB over the RF bandwidth. This is the first time that the operation of a Schottky diode-based image-rejection mixer has been demonstrated at these frequencies.
Keywords :
Schottky diode mixers; atmospheric measuring apparatus; flip-chip devices; microstrip circuits; millimetre wave mixers; Earth observation application; SSB receiver noise temperature; frequency 320 GHz to 360 GHz; planar Schottky diodes flip-chip; side-band ratio; single quartz-based microstrip circuit; sub-harmonically pumped image-rejection mixer; Amplitude modulation; Bandwidth; Circuit noise; Earth; Microstrip; Noise measurement; Radio frequency; Schottky diodes; Signal to noise ratio; Temperature;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665707
