Compact broadband 90° twist based on square waveguide section with two stepped corner ridges

Rud, L. A.; Кulik, D. Yu.; Kirilenko, А. A.

doi:10.1002/mop.24161

Cited by 12 publications

(2 citation statements)

References 11 publications

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“…For applications with size constraints, a waveguide of this length may not be practical and will have high insertion loss. The alternative design described by Rud et al [63] is compact and consists of overlapping rectangular apertures, as shown in Fig. B.1.…”

Section: B2 Design and Fabricationmentioning

confidence: 99%

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Micromachined Millimeter- and Submillimeter-wave Circuits for Test and Integration

Chen¹

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The terahertz spectrum is critical to a wide range of scientific applications, from radio astronomy to remote sensing. However, due to the cost, size and weight of terahertz systems, the terahertz frequency range remains one of the least explored and utilized regions of the electromagnetic spectrum. To reduce the size, weight and cost of terahertz components, one of the solutions is to fabricate high density integrated circuits.Although progress has been made in the development of submillimeter-wave monolithic integrated circuits, the evaluation of these circuits still relies on test fixtures, which makes testing expensive and time consuming. A micromachined on-wafer probe covering frequencies 500-750 GHz has been demonstrated in this work to simplify submillimeterwave integrated circuits testing.This work also presents the design, simulation and measurement of a vertical RF interconnect with mechanical fit for three-dimensional heterogeneous integration, which is one of the major technologies for system miniaturization. The mechanical fit is a flip-chip strategy employing SU-8, an ultra-thick photoresist, to realize interlocking structures that prevent misalignment during assembly and increase the reliability of the interconnects. To determine the electromagnetic characteristics, such as insertion loss and the coupling between face-to-face chips, different test structures were fabricated and measured.To my parents for their long-term encouragement and believing in me.

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Section: B2 Design and Fabricationmentioning

confidence: 99%

“…Start with high-resistivity silicon. This appendix describes a micromachined compact 90 • twist that is based on a design first investigated by Rud et al [63]. The twist is designed to join a conventional WR-1.5 rectangular waveguide to a second, orthogonally-polarized waveguide, as illustrated in Fig.…”

Section: Appendix a Fabrication Processmentioning

confidence: 99%

Micromachined Millimeter- and Submillimeter-wave Circuits for Test and Integration

Chen¹

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SEPIA345: A 345 GHz dual polarization heterodyne receiver channel for SEPIA at the APEX telescope

Meledin

Lapkin

Fredrixon

et al. 2022

A&A

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Context. We describe the new SEPIA345 heterodyne receiver channel installed at the Atacama Pathfinder EXperiment (APEX) telescope, including details of its configuration, characteristics, and test results on sky. SEPIA345 is designed and built to be a part of the Swedish ESO PI Instrument for the APEX telescope (SEPIA). This new receiver channel is suitable for very high-resolution spectroscopy and covers the frequency range 272-376 GHz. It utilizes a dual polarization sideband separating (2SB) receiver architecture, employing superconductor-isolator-superconductor mixers (SIS), and provides an intermediate frequency (IF) band of 4-12 GHz for each sideband and polarization, thus covering a total instantaneous IF bandwidth of 4 × 8 = 32 GHz. Aims. This paper provides a description of the new receiver in terms of its hardware design, performance, and commissioning results. Methods. The methods of design, construction, and testing of the new receiver are presented. Results. The achieved receiver performance in terms of noise temperature, sideband rejection, stability, and other parameters are described. Conclusions. SEPIA345 is a commissioned APEX facility instrument with state-of-the-art wideband IF performance. It has been available on the APEX telescope for science observations since July 2021.

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Comparative analysis of tunable compact rotators

Kirilenko

Steshenko

Деркач

et al. 2018

Journal of Electromagnetic Waves and Applications

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Compact broadband 90° twist based on square waveguide section with two stepped corner ridges

Cited by 12 publications

References 11 publications

Micromachined Millimeter- and Submillimeter-wave Circuits for Test and Integration

Micromachined Millimeter- and Submillimeter-wave Circuits for Test and Integration

SEPIA345: A 345 GHz dual polarization heterodyne receiver channel for SEPIA at the APEX telescope

Comparative analysis of tunable compact rotators

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