2SB and balanced receiver architectures using hole couplers
| Autor: | Lewis B. G. Knee, Ivan Wevers, Pat Niranjanan, Doug Henke |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
business.industry 020208 electrical & electronic engineering chemistry.chemical_element 020206 networking & telecommunications 02 engineering and technology law.invention Hafnium Orthomode transducer Telescope Optics chemistry law 0202 electrical engineering electronic engineering information engineering business Telecommunications Waveguide |
| Zdroj: | 2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS). |
| DOI: | 10.23919/ursigass.2017.8105062 |
| Popis: | The ALMA telescope has now entered cycle 4 operations [1] and as part of a research study proposal [2], we are exploring possible improvements to the ALMA Band 3 receiver cartridge. The Band 3 receiver is capable of detecting both linear polarisations which are discriminated using a waveguide orthomode transducer (OMT). Within each polarisation, both the upper and lower sidebands are separated out using a sideband-separating (2SB) layout. We report on the progress of two new prototype designs that use an integrated OMT with hole couplers to give: (1) a dual-linear sideband-separating architecture, and, (2) a balanced, sideband-separating architecture. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|