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A Low VSWR 2SB Schottky Receiver

Peter Sobis (GigaHertz Centrum ; Institutionen för mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik ) ; Anders Emrich ; Jan Stake (Institutionen för mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik ; GigaHertz Centrum)
IEEE Transactions on Terahertz Science and Technology (2156-342X). Vol. 1 (2011), 2, p. 403-411.
[Artikel, refereegranskad vetenskaplig]

A novel high performance waveguide integrated sideband separating (2SB) Schottky receiver operating in the 320 -360 GHz band is presented. The unique receiver design is based on a core of two subharmonic Schottky diode mixers with embedded LNA’s with a minimum noise figure of 1.8 dB, fed by LO and RF quadrature hybrids. At room temperature, a typical receiver SSB noise temperature of 3000 K is measured over most of the band reaching a minimum of 2700 K, with only 4 mW of LO power. The sideband ratio SBR is typically below 15 dB over the whole band and the measured LO input return loss is typically below 15 dB broadband. High performance sideband separating Schottky receivers can now for the first time be considered for submillimeter wave systems enabling new types of instrument concepts.

Nyckelord: Submillimeter wave technology, schottky diode, receivers, radiometers, subharmonic mixers, sideband separating mixers, dual sideband receivers, image rejection mixers



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Denna post skapades 2011-08-30. Senast ändrad 2014-09-02.
CPL Pubid: 145374

 

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