An Ultrawideband Leaky Lens Antenna for Broadband Spectroscopic Imaging Applications
| Autor: | Ozan Yurduseven, Stephen J. C. Yates, Nuria Llombart, Sebastian Hähnle, Jochem J. A. Baselmans, Andrea Neto, Vignesh Murugesan, Sven van Berkel, J. Bueno, David J. Thoen |
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| Jazyk: | angličtina |
| Předmět: |
Physics - Instrumentation and Detectors
superconducting devices Aperture Frequency band FOS: Physical sciences 02 engineering and technology Astrophysics::Cosmology and Extragalactic Astrophysics 7. Clean energy Radio spectrum law.invention Optics law Broadband 0202 electrical engineering electronic engineering information engineering submillimeter wave devices Electrical and Electronic Engineering Physics Spectrometer ultrawideband antennas business.industry Bandwidth (signal processing) Astrophysics::Instrumentation and Methods for Astrophysics 020206 networking & telecommunications Instrumentation and Detectors (physics.ins-det) Lens (optics) Broadband antennas business Microwave Physics - Optics Optics (physics.optics) |
| Zdroj: | IEEE Transactions on Antennas and Propagation, 68(7) IEEE Transactions on Antennas and Propagation |
| ISSN: | 1558-2221 0018-926X |
| DOI: | 10.1109/tap.2019.2963563 |
| Popis: | We present the design, fabrication and characterisation of a broadband leaky lens antenna for broadband, spectroscopic imaging applications. The antenna is designed for operation in the 300-900 GHz band. We integrate the antenna directly into an Al-NbTiN hybrid MKID to measure the beam pattern and absolute coupling efficiency at three frequency bands centred around 350, 650 and 850 GHz, covering the full antenna band. We find an aperture efficiency $\eta_{ap} \approx 0.4$ over the whole frequency band, limited by lens reflections. We find a good match with simulations for both the patterns and efficiency, demonstrating a 1:3 bandwidth in the sub-mm wavelength range for future on-chip spectrometers. Comment: Accepted for Publication at IEEE Transactions on Antennas and Propagation |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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