Twin Vivaldi antenna fed by coplanar waveguide
Résumé
The authors describe twin Vivaldi antennas directly fed by a coplanar waveguide. They have been designed and measured for various angles between the radiating slots. All the designs show a centred zero in the E plane with a low cross-polarisation. In the H plane they provide zeros for /spl phi/=90/spl deg/ and 270/spl deg/ and are omnidirectional for other values.