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Design of circular apertures for narrow beamwidth and asymmetric low sidelobes

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1 Author(s)
Elliott, R.S. ; University of California, Los Angeles, CA, USA

Taylor's earlier work on circular apertures is enlarged to include a class of radiation patterns consisting of a narrow central beam and asymmetric sidelobes. A synthesis technique applicable to such problems, and using Taylor patterns as building blocks, is formulated. One special case is treated in detail: a sidelobe topography which is 25 dB down in thephi = 0half-plane, smoothly rising to 15 dB down in thephi= pi/2half-plane, remaining at that level until thephi = 3pi/2half-plane is reached, and then smoothly subsiding to 25 dB again asphiincreases from3pi/2to2pi. The complex aperture distribution is derived generally, and exhibited specifically for this case.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:23 ,  Issue: 4 )