Wideband Electrically Small Antenna Internally Loaded With Non-Foster Circuit

Hussein Jaafar (1) , Dominique Lemur (1) , Sylvain Collardey (1) , Ala Sharaiha (1)

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

This paper presents the design of a wideband electrically small antenna using internally loaded Non-Foster circuit. The negative capacitance provided by the circuit can significantly compensate the high reactance of the antenna and match it in a wide bandwidth. However in order to accurately predict the behaviour of the active antenna, the EM model of the non-foster circuit is taken into account in the full wave simulation of the antenna. The loaded antenna having an electrical size ka = 0.3 is matched in a wideband (34%).

Keywords: Electrically small antenna; Non-Foster reactance; Internal matching

Domains: Engineering Sciences [physics]

Hussein Jaafar, Dominique Lemur, Sylvain Collardey, Ala Sharaiha. Wideband Electrically Small Antenna Internally Loaded With Non-Foster Circuit. 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM), Aug 2018, Waterloo, Canada. ⟨10.1109/antem.2018.8572983⟩. ⟨hal-02083884⟩