Projects Document 367-v1

Ray Tracing for an Offset Focus Parabolic Cylinder Antenna

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David McGinnis
Updated by:
David McGinnis
Document Created:
22 Sep 2008, 15:05
Contents Revised:
22 Sep 2008, 15:05
Metadata Revised:
22 Sep 2008, 15:05
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The 21 cm project is based on a parabolic cylinder antenna with receivers placed periodically along the focus line of the antenna. It has been proposed that an offset focus parabolic cylinder antenna would eliminate multiple reflections between the feed line and the main cylinder. This note looks at the location of the focus as a function of the offset angle using simple ray tracing.
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