Design of 300 GHz Combined Doubler/Subharmonic Mixer Based on Schottky Diodes with Integrated MMIC Based Local Oscillator

In this paper the design and experimental characterization of a combined doubler-subharmonic mixer based on Schottky diodes which uses a 75 GHz MMIC based local oscillator is presented. This solution integrates in the same substrate the doubler and the mixer, which share the same metallic packaging...

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Bibliographic Details
Published inElectronics (Basel) Vol. 9; no. 12; p. 2112
Main Authors Pérez-Escudero, José M., Quemada, Carlos, Gonzalo, Ramón, Ederra, Iñigo
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.12.2020
Subjects
Bias
Circuits
Design
Diodes
MMIC (circuits)
Noise levels
Noise temperature
Prototypes
Schottky diodes
Substrates
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Summary:In this paper the design and experimental characterization of a combined doubler-subharmonic mixer based on Schottky diodes which uses a 75 GHz MMIC based local oscillator is presented. This solution integrates in the same substrate the doubler and the mixer, which share the same metallic packaging with the local oscillator. The prototype has been fabricated and measured. For characterization, the Y-Factor technique has been used and the prototype yields a best conversion loss and equivalent noise temperature of 11 dB and 1976 K, respectively, at 305 GHz. This performance is close to the state of the art, and shows the potential of this approach, which allows a significant reduction in terms of size and volume.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics9122112