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S-Pol center fed antenna - PowerPoint PPT Presentation


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S-Pol center fed antenna. Dual Offset-Feed Gregorian Antenna System. Operational March 2008. -38 cross-pol; -40 db in practice. First sidelobe is 31 db down. Gain. First side lobe is 25 db down. 31 db down for new antenna. Cross-pole about -35 db.

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Presentation Transcript
slide4

-38 cross-pol;

-40 db in practice.

First sidelobe is

31 db down.

Gain

slide5

First side lobe is

25 db down. 31 db

down for new

antenna.

Cross-pole about

-35 db.

Pattern for the “old” CHILL center fed parabolic antenna

From Bringi and Chandrasekar (2001)

The 1994 CHILL center fed parabolic antenna

From Bringi and Chandrasekar (2001)