A 183-GHz Schottky diode receiver with 4 dB noise figure
Paper i proceeding, 2019

Atmospheric science based on space-borne millimeter wave measurements require reliable and state-of-the art receivers. In particular, the water vapor line at 183.3 GHz motivates the development of sensitive mixers at this frequency. Traditional assembly techniques employed in the production of Schottky diode receivers involve flip-chip mounting and soldering of discrete dies, which prohibit the implementation of reliable and repeatable production processes. In this work, we present a subharmonic 183 GHz mixer implementing a repeatable assembly method using beamlead Schottky diodes. The mixer was integrated with a InP HEMT MMIC low noise intermediate frequency amplifier resulting in a record-low receiver noise temperature of 450 K at 1 mW of local oscillator power measured at room-temperature. The measured Allan time was 10 s and the third order local oscillator spurious power was less than -60 dBm. The proposed assembly method is of particular importance for space-borne missions but also applicable to a wide range of terahertz applications.

heterodyne receivers

LNAs

thin-film circuits

space instrumentation

Schottky diodes

HEMTs

mixers

front-ends

noise characterization

Författare

Martin Anderberg

Omnisys Instruments

Peter Sobis

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

Omnisys Instruments

GigaHertz Centrum

Vladimir Drakinskiy

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

Joel Schleeh

Low Noise Factory AB

GigaHertz Centrum

Slavko Dejanovic

Omnisys Instruments

Anders Emrich

Omnisys Instruments

Jan Stake

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

International Microwave Symposium
Boston, USA,

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2019-03-04