NDLI: Multibeam Pillbox Antenna With Low Sidelobe Level and High-Beam Crossover in SIW Technology Using the Split Aperture Decoupling Method

Content Provider	IEEE Xplore Digital Library
Author	Tekkouk, K. Ettorre, M. Gandini, E. Sauleau, R.
Copyright Year	1963
Abstract	A novel dual-layer multibeam pillbox antenna with a slotted waveguide radiating part in substrate-integrated waveguide (SIW) technology is proposed. In contrast to previous works, the design goal is to have a multibeam antenna with arbitrary low sidelobes and at the same time a high crossing level between adjacent radiated beams. These two constraints cannot be satisfied simultaneously for any passive and lossless multibeam antenna systems with a single radiating aperture due to beam orthogonality. Here, this limitation is overcome using the “split aperture decoupling” method which consists in using two radiating apertures. Each aperture is associated with a pillbox quasi-optical system with several integrated feed horns in its focal plane so as to steer the main beam in the azimuthal plane. The antenna operates at 24.15 GHz and presents very good scanning performance over an angular sector of ±40°, with a good agreement between full-wave simulations and measurements. The crossover level between adjacent beams is about -3 dB with a sidelobe level lower than -24 dB for the central beam and better than -11 dB for the extreme beam positions. The isolation between feed horns in the same pillbox system is better than 20 dB.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	5209
Ending Page	5215
Page Count	7
File Size	1717208
File Format	PDF
ISSN	0018926X
Volume Number	63
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Feeds Couplings Aperture antennas Antenna radiation patterns Slot antennas slotted waveguides Multi-beam antenna pillbox architecture substrate integrated waveguide substrate-integrated waveguide (SIW) Multibeam antenna
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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