Abstract
DESHIMA is a spectrometer for astronomical applications targeting sources at sub-mm wavelengths from 240GHz to 720GHz that will operate in the ASTE telescope in Atacama Desert, Chile. In this work, a quasi-optical system based on a hyper-hemispherical leaky lens antenna and a series of Dragonian reflectors is presented as the coupling chain for the EM radiation captured by the telescope into the detector. The design procedure is based on a field matching technique in reception. The achieved average illumination efficiency over the band is approximately 70%. The directivity patterns in the sky are also estimated. The side lobe, and cross-polarization levels, over the whole frequency band, are below-16dB, and-18dB, respectively. The measurement of the system is on-going, and will be presented at the conference.
| Original language | English |
|---|---|
| Title of host publication | IRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves |
| Publisher | IEEE |
| Pages | 1-2 |
| Number of pages | 2 |
| ISBN (Electronic) | 978-1-5386-8285-2 |
| ISBN (Print) | 978-1-5386-8286-9 |
| DOIs | |
| Publication status | Published - 2019 |
| Event | 44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019 - Paris, France Duration: 1 Sept 2019 → 6 Sept 2019 |
Publication series
| Name | International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz |
|---|---|
| Volume | 2019-September |
| ISSN (Print) | 2162-2027 |
| ISSN (Electronic) | 2162-2035 |
Conference
| Conference | 44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019 |
|---|---|
| Country/Territory | France |
| City | Paris |
| Period | 1/09/19 → 6/09/19 |
Fingerprint
Dive into the research topics of 'Quasi-Optical System for the ASTE Telescope with 1:3 Bandwidth at Sub-mm Wave'. Together they form a unique fingerprint.Research output
- 3 Citations
- 1 Dissertation (TU Delft)
-
On-Chip Solutions for Future THz Imaging Spectrometers
Pascual Laguna, A., 2022, 211 p.Research output: Thesis › Dissertation (TU Delft)
Open AccessFile562 Downloads (Pure)
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