L
I
Last name: LINARDOU
First name: I.
D.E.A. Propagation Télécommunications et Télédétection
This letter describes the design of a uniplanar parallel‐series‐fed linear array of Vivaldi antennas. Matching conditions have been optimized with an equivalent‐circuit model. The array exhibits 12dBi gain in the substrate plane, 80% radiation efficiency, and low cross polarization over 5% bandwidth centered at 4.2GHz.
The response of a twin Vivaldi antenna to even and odd excitations is used to achieve pattern diversity at a single frequency (4.4 GHz). In the even mode, the antenna radiates at boresight with a 6.5 dBi gain. The odd mode radiates symmetrically with a 6 dBi gain.
This letter describes the design of a uniplanar parallel‐series‐fed linear array of Vivaldi antennas. Matching conditions have been optimized with an equivalent‐circuit model. The array exhibits 12dBi gain in the substrate plane, 80% radiation efficiency, and low cross polarization over 5% bandwidth centered at 4.2GHz.
International audience
The response of a twin Vivaldi antenna to even and odd excitations is used to achieve pattern diversity at a single frequency (4.4 GHz). In the even mode, the antenna radiates at boresight with a 6.5 dBi gain. The odd mode radiates symmetrically with a 6 dBi gain.
International audience
International audience
International audience
International audience
A coplanar waveguide-fed twin Vivaldi antenna has been developed and tested at 4.4 GHz and an equivalent circuit has been proposed. E-plane radiation patterns show a centred zero because of the odd excitation of the antennas while low cross-polarisation levels are observed. The maximum radiation angle can be modified by adjusting the distance...
International audience
A coplanar waveguide-fed twin Vivaldi antenna has been developed and tested at 4.4 GHz and an equivalent circuit has been proposed. E-plane radiation patterns show a centred zero because of the odd excitation of the antennas while low cross-polarisation levels are observed. The maximum radiation angle can be modified by adjusting the distance...
International audience
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...
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...
International audience