Open AccessSlotted waveguide antenna with a near‐field focused beam in one plane
Author(s) -
Clauzier Sébastien,
Avrillon Stéphane,
Le Coq Laurent,
Himdi Mohamed,
Colombel Franck,
Rochefort Erwan
Publication year - 2015
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2014.0479
Subject(s) - beam waveguide antenna , optics , antenna (radio) , beam (structure) , slotted waveguide , waveguide , physics , near and far field , field (mathematics) , plane (geometry) , periscope antenna , beam diameter , antenna array , radiation pattern , slot antenna , telecommunications , engineering , geometry , mathematics , laser beams , laser , pure mathematics
A slotted waveguide providing a two‐dimensional near‐field focused beam is presented. This antenna focuses the beam in the E ‐plane and provides a wide beam in the H ‐plane in order to illuminate a linear array as reflect‐ or transmit‐array antenna with a small width (100 mm) and a very large length (1530 mm) located in the near‐field region. The simulated field distribution on the array is found to be in very good agreement with the measurement of a prototype at 9.41 GHz.