An SIS mixer based focal-plane array at 230 GHz
<p>Efficiently mapping large areas of the sky with high spectral resolution at mm and sub-mm wavelengths will require a new generation of heterodyne focal-plane array receivers. The number of pixels in such arrays has not increased particularly rapidly in the last two decades, with maximum ach...
| Main Authors: | , , , , , |
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| Format: | Conference item |
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IEEE
2015
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| _version_ | 1797051214534279168 |
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| author | Tan, B Leech, J Yassin, G Zhou, Y Garrett, J Grimes, P |
| author_facet | Tan, B Leech, J Yassin, G Zhou, Y Garrett, J Grimes, P |
| author_sort | Tan, B |
| collection | OXFORD |
| description | <p>Efficiently mapping large areas of the sky with high spectral resolution at mm and sub-mm wavelengths will require a new generation of heterodyne focal-plane array receivers. The number of pixels in such arrays has not increased particularly rapidly in the last two decades, with maximum achieved pixel numbers between 16 and 64 (e.g. [1] and [2]). Thus new approaches are needed to address such problems as local oscillator (LO) injection, feed horn fabrication and SIS mixer design, fabrication and repeatability.</p> <p>Here we describe a prototype focal-plane array unit based on unilateral finline SIS mixers, fed with smooth-walled feed horns. LO injection power diplexing is achieved by a combination of directly machined waveguide Y-power splitters and bow-tie cross waveguide couplers. The 1×4 prototype array, currently under construction, will demonstrate several technologies relevant to the construction of large format arrays.</p> |
| first_indexed | 2024-03-06T18:16:45Z |
| format | Conference item |
| id | oxford-uuid:04e1be64-9e6d-462c-a074-8dd32c9a5cef |
| institution | University of Oxford |
| last_indexed | 2024-03-06T18:16:45Z |
| publishDate | 2015 |
| publisher | IEEE |
| record_format | dspace |
| spelling | oxford-uuid:04e1be64-9e6d-462c-a074-8dd32c9a5cef2022-03-26T08:54:06ZAn SIS mixer based focal-plane array at 230 GHzConference itemhttp://purl.org/coar/resource_type/c_5794uuid:04e1be64-9e6d-462c-a074-8dd32c9a5cefSymplectic Elements at OxfordIEEE2015Tan, BLeech, JYassin, GZhou, YGarrett, JGrimes, P<p>Efficiently mapping large areas of the sky with high spectral resolution at mm and sub-mm wavelengths will require a new generation of heterodyne focal-plane array receivers. The number of pixels in such arrays has not increased particularly rapidly in the last two decades, with maximum achieved pixel numbers between 16 and 64 (e.g. [1] and [2]). Thus new approaches are needed to address such problems as local oscillator (LO) injection, feed horn fabrication and SIS mixer design, fabrication and repeatability.</p> <p>Here we describe a prototype focal-plane array unit based on unilateral finline SIS mixers, fed with smooth-walled feed horns. LO injection power diplexing is achieved by a combination of directly machined waveguide Y-power splitters and bow-tie cross waveguide couplers. The 1×4 prototype array, currently under construction, will demonstrate several technologies relevant to the construction of large format arrays.</p> |
| spellingShingle | Tan, B Leech, J Yassin, G Zhou, Y Garrett, J Grimes, P An SIS mixer based focal-plane array at 230 GHz |
| title | An SIS mixer based focal-plane array at 230 GHz |
| title_full | An SIS mixer based focal-plane array at 230 GHz |
| title_fullStr | An SIS mixer based focal-plane array at 230 GHz |
| title_full_unstemmed | An SIS mixer based focal-plane array at 230 GHz |
| title_short | An SIS mixer based focal-plane array at 230 GHz |
| title_sort | sis mixer based focal plane array at 230 ghz |
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