This letter describes a systematic procedure for calculating the half flare angle of a conical scalar horn, illuminating a paraboloidal reflector of known f/D ratio, with a view to realising a prescribed sidelobe level for the secondary radiation. © 1972, The Institution of Electrical Engineers. All rights reserved.

M. S. Narasimhan

Y. B. Malla

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Electronics Letters

Proceedings of the Institution of Electrical Engineers

Propagation and radiation behaviour of corrugated feeds. Part 2: Corrugated-conical-horn feed

Computer-predicted performance of corrugated conical feeds using experimental primary-radiation patterns

Expressions for the diffracted far field of a wide-flare-angle corrugated conical horn (operating on the HE11 mode) have been obtained making use of a simpler expression for the aperture field. Expressions for the radiation pattern and gain reduce to a closed form when the flare (semivertical) angle is less than 30°. The theoretical results are in close agreement with experiment. © 1970, The Institution of Electrical Engineers. All rights reserved.

Diffraction by wide-flare-angle corrugated conical horns

A simpler solution for spherical hybrid modes in corrugated conical horns has been shown to have a deviation from the rigorous solution of less than 0.7 dB for the case considered by Clarricoats. Expressions for the radiation pattern and gain of such a horn with small flare angle have been obtained under balanced hybrid conditions. © 1970, The Institution of Electrical Engineers. All rights reserved.

Journal	Electronics Letters
ISSN	00135194
Open Access	No