A COMPARATIVE ANALYSIS OF RADIATION FROM CIRCULAR AND RECTANGULAR APERTURES: LIMITATIONS ON THEIR USE FOR BESSEL BEAM FORMATION

• Date: 2026
• Main Authors: Kuzmychov, I. K., Voitovych, O. A., Lukash, O. S., Khutorian, E. M., Maltsev, V. P., May, O. V.
• Format: Article
• Language: Ukrainian
• Published: Видавничий дім «Академперіодика» 2026
• Subjects: aperture method; millimeter wavelength range; circular aperture; radiation pattern; Gaussian distribution; voltage standing wave ratio (VSWR); conical lens
• Online Access: http://rpra-journal.org.ua/index.php/ra/article/view/1495
• Journal Title: Radio physics and radio astronomy

Subject and Purpose. Essentials of the processes for millimeter-wavelength radiation from circular apertures are analyzed, with emphasis on the formation of the field’s radiation pattern (RP) and modal structure in the aperture. The work is aimed at obtaining analytical expressions for the circular...