Abstract
It is shown that the radiation pattern of slotted wave guide arrays may contain small second-order beams even for slot spacings less than a free-space wave length. These beams are usually split with a minimum or even a null in the plane containing the array and main beam. Since patterns are normally taken in this plane, the second-order beams have until now escaped attention, as far as the writer is aware. Methods of suppressing these beams are discussed.
Publisher
Canadian Science Publishing
Subject
General Physics and Astronomy
Cited by
22 articles.
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1. Low Sidelobe Level Pattern Synthesis of 2-D Slot Array Antenna Based on Ridged Waveguide;International Journal of RF and Microwave Computer-Aided Engineering;2023-05-16
2. Efficient SIW-Feed Network Suppressing Mutual Coupling of Slot Antenna Array;IEEE Transactions on Antennas and Propagation;2021-09
3. Employing the dumbbell-shaped longitudinal slot antennas in the planar slotted antenna arrays;International Journal of Microwave and Wireless Technologies;2021-08-06
4. Employing double posts to excite the centerline longitudinal slot antennas;Microwave and Optical Technology Letters;2020-03-21
5. Advances in Slotted Waveguide Array Antenna Technology;2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS);2019-11