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2008•Unpublished venueRequires access

A 75–110 GHz seventh-harmonic balanced diode mixer in a novel circuit configuration

Dirk Schneiderbanger, Christian Kneuer, Michael Sterns, Robert Rehner, Siegfried Martius, Lorenz-Peter Schmidt

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Abstract

We report on a novel balanced diode mixer circuit configuration. The mixer operates in a seventh harmonic mixing mode and is fed with the RF signal via a WR-10 waveguide. For a fixed IF of 750 MHz our mixer has very flat characteristics of conversion loss of about 19 dB plusmn 2.5 dB over the entire W-band (75-110 GHz). The mixer is straight forward to design and its fix-tuned hybrid integrated circuit is easy to manufacture. Only commercially available components are necessary. So our mixer design offers a smart and low-cost alternative solution for broadband receivers as well as for frequency extensions of spectrum analyzers and vector network analyzers.

About this research paper

What this paper is about

We report on a novel balanced diode mixer circuit configuration. The mixer operates in a seventh harmonic mixing mode and is fed with the RF signal via a WR-10 waveguide. For a fixed IF of 750 MHz our mixer has very flat characteristics of conversion loss of about 19 dB plusmn 2.5 dB over the entire W-band (75-110 GHz). The mixer is straight forward to design and its fix-tuned hybrid integrated circuit is easy to manufacture. Only commercially available components are necessary. So our mixer design offers a smart and low-cost alternative solution for broadband receivers as well as for frequency extensions of spectrum analyzers and vector network analyzers.

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Available abstract

We report on a novel balanced diode mixer circuit configuration. The mixer operates in a seventh harmonic mixing mode and is fed with the RF signal via a WR-10 waveguide. For a fixed IF of 750 MHz our mixer has very flat characteristics of conversion loss of about 19 dB plusmn 2.5 dB over the entire W-band (75-110 GHz). The mixer is straight forward to design and its fix-tuned hybrid integrated circuit is easy to manufacture. Only commercially available components are necessary. So our mixer design offers a smart and low-cost alternative solution for broadband receivers as well as for frequency extensions of spectrum analyzers and vector network analyzers.

Key concepts: Electronic mixer, Harmonic mixer, Frequency mixer, Intermediate frequency, Harmonic, Broadband, Diode, Electrical engineering

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