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arXiv · 1908.06564

Experimental Study of a Planar-integrated Dual-Polarization Balanced SIS Mixer

Wenlei Shan·Shohei Ezaki·Keiko Kaneko·Akihira Miyachi·Takafumi Kojima·Yoshinori Uzawa
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Abstract

A dual-polarization balanced superconductor-insulator-superconductor mixer operating at 2 mm wavelength is realized in form of a monolithic planar integrated circuit. Planar orthomode transducers and LO couplers are enabled by using silicon membranes that are locally formed on the silicon-on-insulator substrate. The performance of the balanced mixer is experimentally investigated. Over the entire RF band (125-163 GHz), the balanced mixer shows an LO noise rejection ratio about 15 dB, an overall receiver noise about 40 K, and a cross-polarization <-20 dB. The demonstrated compactness and the performance of the integrated circuit indicate that this approach is feasible in developing heterodyne focal plane arrays.

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Wenlei Shan, Shohei Ezaki, Keiko Kaneko, Akihira Miyachi, Takafumi Kojima, Yoshinori Uzawa. 2019-08-19. Experimental Study of a Planar-integrated Dual-Polarization Balanced SIS Mixer. https://arxiv.org/abs/1908.06564

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