N.V. Fedorkova1, A.A. Pokatilova2

1,2 Bauman Moscow State Technical University (Moscow, Russia)
 

The article is devoted to the problem of providing enough LO power in the millimetre-wave and THz region with the help of harmonic mixers and frequency multipliers. There has been examined modern constructions and measured results through research of millimetre-wave and THz frequency different order harmonic mixers with Schottky diodes. It is shown, that results of conversion loss of the same harmonic number mixers are differ greatly.

There has been offered equivalent circuit of the odd-harmonic mixer and has given the calculated results of harmonic mixers 2–5 orders. There has been analyzed the efficiency of harmonic mixers using simulation of the main characteristics, such as conversion loss, intermodulation products and isolation between all ports of even and odd – harmonic mixers, the same micrоstrip design and Schottky barrier diode with the help of NI AWRDE program.

A comparison between a fourth harmonic mixer and a combined doubler/subharmonic mixer is based on Schottky diodes is presented. It was determined, that odd – harmonic mixers provides the better characteristics than the nearest even – harmonic one. However in the case of necessity to realize the even order conversion for local oscillators frequency it is desirable superinduce the frequency doubler.

There has been established common recommendations for engineering of conversion frequency devices using harmonic mixers different orders.

Fedorkova N.V., Pokatilova A.A. The Harmonic Mixers resources research. Nanotechnology: development and applications – XXI century. 2022 V. 14. № 1. P. 5–12. DOI: https://doi.org/10.18127/j22250980-202201-01 (in Russian)

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