Abstract
Due to the high transmitted power level, the signals coming from an orbiting cloud radar operating near 94 GHz can interfere with Earth-based receivers within the entire spectrum. This is particularly true for high-sensitive receivers as used in radio-astronomy. In certain situations there can be even damage of the ultra sensitive front-end in such receivers. The interference scenario as caused by a cloud-radar operating near 94 GHz from an orbiting satellite is discussed. A few solutions to alleviate the potential impact in ultra sensitive receiver front-ends in millimeter-wave radio telescopes have been studied. A filtering feed with a narrow band blocking capability has been suggested to protect such ultra sensitive receiving front-ends. The design, realisation and test of hardware related to such a filtering antenna feed (at ambient and cryogenic temperatures) are discussed.
| Translated title of the contribution | Een belichter voor twee polarisaties met ingebouwd filter om radio telescopen te beschermen tegen radar signalen afkomstig van smalbandige wolken radars op een satelliet |
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| Original language | English |
| Pages | 1394-1397 |
| Number of pages | 4 |
| Publication status | Published - 9 Apr 2000 |
| Externally published | Yes |
| Event | conference; AP 2000, Millennium Conference on Antennas & Propagation, Davos, Switzerland; 2000-04-09; 2000-04-14 - Duration: 9 Apr 2000 → 14 Apr 2000 |
Conference
| Conference | conference; AP 2000, Millennium Conference on Antennas & Propagation, Davos, Switzerland; 2000-04-09; 2000-04-14 |
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| Period | 9/04/00 → 14/04/00 |
| Other | AP 2000, Millennium Conference on Antennas & Propagation, Davos, Switzerland |