A filtering dual polarised antenna feed to protect mm-wave radio telescope antennas against narrow band spacebased cloud radars

Kees van 't Klooster; V.  Dainelli; R. Torini; G.  Figlia; G. Tomasetti; E. Natale

A filtering dual polarised antenna feed to protect mm-wave radio telescope antennas against narrow band spacebased cloud radars

Kees van 't Klooster
, V. Dainelli
, R. Torini
, G. Figlia
, G. Tomasetti
, E. Natale

Research output: Contribution to conference › Paper › Professional

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
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
Period	9/04/00 → 14/04/00
Other	AP 2000, Millennium Conference on Antennas & Propagation, Davos, Switzerland

Cite this

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title = "A filtering dual polarised antenna feed to protect mm-wave radio telescope antennas against narrow band spacebased cloud radars",

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. ",

author = "\{van 't Klooster\}, Kees and V. Dainelli and R. Torini and G. Figlia and G. Tomasetti and E. Natale",

year = "2000",

month = apr,

day = "9",

language = "English",

pages = "1394--1397",

note = "conference; AP 2000, Millennium Conference on Antennas \& Propagation, Davos, Switzerland; 2000-04-09; 2000-04-14 ; Conference date: 09-04-2000 Through 14-04-2000",

}

van 't Klooster, K, Dainelli, V, Torini, R, Figlia, G, Tomasetti, G & Natale, E 2000, 'A filtering dual polarised antenna feed to protect mm-wave radio telescope antennas against narrow band spacebased cloud radars', Paper presented at conference; AP 2000, Millennium Conference on Antennas & Propagation, Davos, Switzerland; 2000-04-09; 2000-04-14, 9/04/00 - 14/04/00 pp. 1394-1397.

A filtering dual polarised antenna feed to protect mm-wave radio telescope antennas against narrow band spacebased cloud radars. / van 't Klooster, Kees; Dainelli, V. ; Torini, R. et al.
2000. 1394-1397 Paper presented at conference; AP 2000, Millennium Conference on Antennas & Propagation, Davos, Switzerland; 2000-04-09; 2000-04-14.

Research output: Contribution to conference › Paper › Professional

TY - CONF

T1 - A filtering dual polarised antenna feed to protect mm-wave radio telescope antennas against narrow band spacebased cloud radars

AU - van 't Klooster, Kees

AU - Dainelli, V.

AU - Torini, R.

AU - Figlia, G.

AU - Tomasetti, G.

AU - Natale, E.

PY - 2000/4/9

Y1 - 2000/4/9

N2 - 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.

AB - 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.

M3 - Paper

SP - 1394

EP - 1397

T2 - conference; AP 2000, Millennium Conference on Antennas & Propagation, Davos, Switzerland; 2000-04-09; 2000-04-14

Y2 - 9 April 2000 through 14 April 2000

ER -

A filtering dual polarised antenna feed to protect mm-wave radio telescope antennas against narrow band spacebased cloud radars

Abstract

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Cite this