Wide-Angle Beam Steering Closed-Form Pillbox Antenna Fed by Substrate-Integrated Waveguide Horn for On-the-Move Satellite Communications
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Authors
Abbosh, Amin
Ikram, Muhammad
Mobashsher, Ahmed Toaha
Moosazadeh, Mahdi
Sultan, Kamel
Issue Date
2024-01-12
Type
Journal Article
Peer-reviewed
Peer-reviewed
Language
Keywords
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Abstract
Wide-angle mechanical beam steering for on-the-move satellite communications is presented in this paper based on a closed-form pillbox antenna system. It includes three main parts: a fixed-feed part, which is a substrate-integrated waveguide (SIW) horn with an extended aperture attached to a parabolic reflector; a novel quasi-optical system, which is a single coupling slot alongside and without spacing from the parabolic reflector; and a radiating disc, which is a leaky-wave metallic pattern. To make the antenna compact, pillbox-based feeding is implemented underneath the metallic patterns. The antenna is designed based on a substrate-guided grounded concept using leaky-wave metallic patterns operating at (Formula presented.). Beam scanning is achieved using mechanical rotation of the leaky-wave metallic patterns. The proposed antenna has an overall size of 340 × 335 × 2 mm3, a gain of (Formula presented.), wide beam scanning range of (Formula presented.), from (Formula presented.) to (Formula presented.) in the azimuthal plane, and a low side lobe level of (Formula presented.) at a maximum scan angle of (Formula presented.). The proposed antenna terminal is suitable for next-generation ubiquitous connectivity for households and small businesses in remote areas, ships, unmanned aerial vehicles, and disaster management.
Description
Citation
Publisher
Multidisciplinary Digital Publishing Institute (MDPI)
License
Journal
Volume
24
Issue
3