PARABOLIC DISH FEEDS — PERFORMANCE ANALYSIS - QSL.net

DOWNLOAD ePAPER

feng.pucrs.br

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

START NOW

Illumination loss<br />

Spillover loss<br />

0 dB -10 -20<br />

Dish Illumination f/D = 0.25<br />

Figure 11-4a

Illumination loss Spillover loss 0 dB -10 -20 Dish Illumination f/D = 0.25 Figure 11-4a

Illumination loss Spillover loss 0 dB -10 -20 Illumination taper = 10 dB Figure 11-4b: Dish Illumination f/D = 0.75