Micro-Lens Antenna Integrated in a Silicon Micromachined Receiver at 1.9 THz
Maria Alonso Del Pino (California Institute of Technology)
Theodore Reck (California Institute of Technology)
Choonsup Lee (California Institute of Technology)
Cecile Jung-Kubiak (California Institute of Technology)
Nuria Llombart Llombart (TU Delft - Tera-Hertz Sensing)
Imran Mehdi (California Institute of Technology)
Goutam Chattopadhyay (California Institute of Technology)
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Abstract
This article presents the latest developments of our work related to a micro-lens antenna integrated in a heterodyne receiver using silicon micromachining technology at Terahertz frequencies. The antenna is composed of a waveguide feed which uses a leaky wave cavity to enhance the directivity and illuminate a shallow lens efficiently. The receiver is a dual-polarized balanced heterodyne detector using hot-electron bolometers (HEB) as mixers. The front-end receiver, including the antenna, can be fabricated using silicon micromachining processes and has seamless integration, which reduces the overall size and losses.