Characteristic Modes Analysis to Integrate a Feeding Network in a Wideband Superdirective Array

H. Jaafar (1) , Sylvain Collardey (1) , A. Sharaiha (1)

1 IETR - Institut d'Électronique et des Technologies du numéRique

In this paper we present the integration of a feeding network in a compact endfire array to insure a wideband superdirectivity. The integration of the feeding network is done with the help of the characteristic modes analysis (CMA). The CMA provides guidelines concerning the placement of the feeding network on the antenna structure in a way to minimize its effect on the radiating modes and hence maintaining a stable radiation pattern over frequency. Several examples are presented to demonstrate this approach. The best integrated feeding network provides a wideband directivity over the desired frequency with a matched impedance. © 2018 KIEES.

Keywords: Characteristic modes analysis; Small antennas; Superdirectivity

Domains: Engineering Sciences [physics]

H. Jaafar, Sylvain Collardey, A. Sharaiha. Characteristic Modes Analysis to Integrate a Feeding Network in a Wideband Superdirective Array. 2018 International Symposium on Antennas and Propagation, ISAP 2018, Oct 2018, Busan, South Korea. pp.8627541. ⟨hal-02089122⟩