1. How Two Crossed Dipoles' Impedance Varies With Their Non‐Orthogonality, Length & Separation.
- Author
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Arada, Gerald Pacaba, Wu, Yue Ivan, Wong, Kainam Thomas, Tam, Wai‐Yip, Khan, Salman, and Fulton, Caleb J.
- Subjects
DIRECTION of arrival estimation ,DIRECTIONAL antennas ,ANTENNA arrays ,COMPUTATIONAL electromagnetics ,PHENOMENOLOGY ,DIPOLE-dipole interactions - Abstract
To model the electromagnetic mutual impedance between a pair of "crossed dipoles" (a.k.a. "cross dipoles") whose relative orientation is skewed (i.e., not perpendicular), this paper advances a new modeling approach – the "phenomenological" or "behavioral" approach. This new approach leads to simple models of the mutual impedance, as closed‐form expressions parameterized explicitly by the dipoles' (a) skew angle, (b) separation, and (c) common length. This mathematical simplicity is unprecedented in prior models. These models' usefulness is illustrated, using direction finding as an example. Key Points: Qualitative insights on how the mutual impedance of cross‐dipoles varies with their skew angle, common length, and separationThe proposed phenomenological modeling approach least‐squares‐fits the cross‐dipoles' mutual impedance values to low‐dimensional modelsDespite these phenomenological models' few degrees of freedom, the proposed models successfully facilitate direction finding [ABSTRACT FROM AUTHOR]
- Published
- 2022
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