External and coplanar feeding for spiral antenna

Karim Louertani (1) , Régis Guinvarc'H (1) , Nicolas Ribière-Tharaud (2) , Marc Hélier (3)

1 SONDRA - Sondra, CentraleSupélec, Université Paris-Saclay (COmUE)
2 L2S - Laboratoire des signaux et systèmes
3 L2E - Laboratoire d'Electronique et Electromagnétisme

Spiral antennas are usually fed in the center by a balanced signal. However, in some configurations, it is not always possible to feed the antenna in the center. In this paper, an externally-fed spiral antenna is studied. The antenna exhibits characteristics similar to that of the center-fed spiral antenna with an improvement in terms of polarization.

Domaines: Electromagnétisme

Karim Louertani, Régis Guinvarc'H, Nicolas Ribière-Tharaud, Marc Hélier. External and coplanar feeding for spiral antenna. 2010 IEEE Antennas and Propagation Society International Symposium (APSURSI 2010), Jul 2010, Toronto, Canada. ⟨10.1109/APS.2010.5560994⟩. ⟨hal-00556630⟩