Conference item
An SIS mixer based focal-plane array at 230 GHz
- Abstract:
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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.
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.
- Publication status:
- Accepted
- Peer review status:
- Peer reviewed
Actions
Authors
- Publisher:
- IEEE
- Host title:
- Proceedings of the International Symposium on Space Terahertz Technology
- Publication date:
- 2015-01-01
- Pubs id:
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pubs:574813
- UUID:
-
uuid:04e1be64-9e6d-462c-a074-8dd32c9a5cef
- Local pid:
-
pubs:574813
- Source identifiers:
-
574813
- Deposit date:
-
2015-11-24
Terms of use
- Copyright holder:
- IEEE
- Copyright date:
- 2015
- Notes:
- Copyright © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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