Dielectric rod waveguide antenna as THz emitter for photomixing devices
| Autor: | Luis Enrique Garcia-Munoz, Dmitri Lioubtchenko, Martin F. Schneidereit, Antti V. Räisänen, Sascha Preu, Alejandro Rivera-Lavado, Javier Montero-de-Paz, Gottfried H. Döhler, Harald G. L. Schwefel, Mario Mendez-Aller, Stefan Malzer, Florian Sedlmeir, Daniel Segovia-Vargas, Andrey Generalov |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Materials science
ta221 ta1171 Physics::Optics Effective radiated power Radiation pattern law.invention Photomixing Resonator Optics law photomixer Electrical and Electronic Engineering ta216 Common emitter ta115 ta213 ta114 business.industry dielectric rod waveguide (DRW) antenna THz antenna Lens (optics) Optoelectronics Antenna (radio) Whispering-gallery wave business whispering gallery mode resonator |
| Zdroj: | IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION. 63(3):882-890 |
| ISSN: | 0018-926X |
| Popis: | We propose a dielectric rod waveguide antenna (DRW) integrated with a photomixer as a THz emitter. This represents a different approach as opposed to the classical solution of a substrate lens. Main goals are an inexpensive alternative to substrate lenses, reduction of both reflections on the semiconductor-air interface and scattering of terahertz-generated power into the substrate. A radiation pattern measured at 137 GHz is shown as a proof-of-concept. In order to increase radiated power, the improvement of the rod antenna is discussed. Finally, as an application example, evanescent coupling of the DRW into a high index whispering gallery mode resonator is shown. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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