Publication Date:
2019-07-13
Description:
A full scale 20 GHz antenna model was designed, fabricated and tested. The model is intended to test the low sidelobe beam scanning capability of a new class of an offset dual reflector and feed array configuration. The offset main reflector and subreflector surfaces are custom shaped by a computer synthesis procedure. The derived optics result in beam scan loss under 1 db over the + or - 12.3 beamwidths by + or - 5.8 beamwidths scan volume while maintaining low sidelobes. It is found that the measured and computed patterns are in good agreement.
Keywords:
COMMUNICATIONS AND RADAR
Type:
NASA-CR-174268
,
NAS 1.26:174268
,
IEEE Antenna Propagation Symp.; May 23, 1983 - May 27, 1983; Houston, TX; United States
Format:
application/pdf
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