Large RF Bandwidth Waveguide to Thinfilm Microstrip Transitions on Suspended Membrane for use in Silicon Micromachined Mixer blocks at THz Frequencies

摘要

With the advent of broad bandwidth low noise Hot Electron Bolometer (HEB) mixers at Terahertz frequencies, there is a need for a large RF bandwidth (scalable) waveguide to thin-film transition. At present nearly all HEB receivers operating above 800 GHz are implemented in quasi-optical (twin-slot, log-periodic, dipole) structures. This despite the fact that waveguide technology offers the prospect of higher throughput, better telescope coupling, and large format imaging arrays with well aligned beams on the sky.