Title

Active Minimization Of The Sidelobes Of Radiating Apertures

Abstract

A novel technique for suppressing sidelobes as well as increasing the mainlobe level of radiating apertures is presented. The technique involves placing a separately excited wire along the diffracting edge of the aperture so as to enhance the mainlobe and to suppress the sidelobes of the radiating aperture. The beamwidths of the resulting E and H planes of a circular waveguide loaded by an active wire loop are found to be almost identical in a particular experimental case. Furthermore, the E and H plane patterns approach each other since the sidelobe levels are decreased significantly in the E plane and by about the same amount as they are increased in the H plane. A significant increase in the main-to-sidelobe ratio is also obtained when this technique is applied to radiating fields from circular apertures in a full conducting plane and to the diffraction from apertures between two semi-infinite conducting wedges. © 1989 Taylor & Francis Ltd.

Publication Date

1-1-1989

Publication Title

International Journal of Electronics

Volume

67

Issue

4

Number of Pages

617-622

Document Type

Article

Identifier

scopus

DOI Link

https://doi.org/10.1080/00207218908921114

Socpus ID

0024746504 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0024746504

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