Antenna screens forming a cut-off pattern

 

D. V. Tatarnikov, I. M. Chernetskiy

Topcon Positioning Systems, Moscow Aviation Institute (National Research University)

 

The paper is received on September 25, 2015

 

Abstract. Opportunities to achieve a cut-off pattern in semi-shadow area of an antenna by supplementing the ground plane with a system of semi-transparent ribs parallel to the direction of the main lobe are discussed. Mathematical models have been developed, computer simulation have been performed, results have been proved by experimental studies. It has been shown that a cut-off of about 20dB is achievable. Results are relevant to electromagnetic compatibility, jamming protection and multipath error mitigation.

Key words: half-plane diffraction, semi-transparent sheet, semi-shadow zone, cut-off pattern.