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

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

1

Lastpage

1

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIMW.2008.4665707

Filename

4665707