Theoretical methods for computing characteristics of Wullenweber antennas | Zendy

Mingliang Ma | Zendy; Lillie C. Walters | Zendy

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Theoretical methods for computing characteristics of Wullenweber antennas

Author(s) -

Mingliang Ma,

Lillie C. Walters

Publication year - 1970

Publication title -

proceedings of the institution of electrical engineers

Language(s) - English

Resource type - Journals

eISSN - 2053-7891

pISSN - 0020-3270

DOI - 10.1049/piee.1970.0376

Subject(s) - antenna (radio) , azimuth , ring (chemistry) , dipole antenna , concentric , physics , acoustics , optics , electrical impedance , geometry , mathematics , electrical engineering , engineering , chemistry , organic chemistry

A theoretical method is formulated for calculating input and mutual impedances, total field radiated, and power gain of a Wullenweber antenna above a lossy flat earth. The Wullenweber antenna considered here is essentially an array of two concentric rings of discrete elements. Each ring is placed in front of a concentric screen. The inner ring is designed to operate at 3Â¿10MHz, and the outer ring at 8Â¿32 MHz. The radiator used for the highband ring is a sleeve antenna, and that for the lowband ring is a 3-wire folded monopole. Numerical results are given as a function of frequency, ground constants, elevation and azimuth angles with a specified set of element and array dimensions.

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