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A stereolithography-based manufacturing process for monolithic high aspect ratio components for mm-wave and sub-mm-wave applications is demonstrated. A 25 mm long straight waveguide and a diagonal horn antenna, both for the WR-3.4 band (220–330 GHz), are manufactured and characterized. The waveguide is found to exhibit transmission losses close to the theoretical minimum for Cu, and the performance...
The transmission properties of a compact circular corrugated waveguide system are investigated experimentally in the WM-380 band from 500 to 750 GHz. Up to 700 GHz, the average transmission losses range from undetectable to 3.4 dB/m, which is more than four orders of magnitude lower than in rectangular waveguides. The propagation of the lowest-loss HE11 mode is found to be dominant, and long-term...
A modular set of compact corrugated wave-guiding components is presented as an alternative to rectangular waveguides in the WR-1.5 band (500 to 750 GHz). The components presented are designed to enable broadband and low loss operation. A high performance connection system between the components allows for modular path building and efficient power coupling to solid-state devices. The manufacturing...
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