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Content Provider | IET Digital Library |
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Author | Mirkamali, Ali Deban, Ramin Siaka, Francis Laurin, Jean Jacques |
Abstract | A novel feed system for circular arrays enabling beam steering over 360° in the azimuth plane with a stable scanned beam is proposed. It consists of rotating and fixed parts. The rotating part is a two-dimensional offset fed parabolic reflector which is inside a circular parallel plate waveguide. The power coming from the rotating part is coupled with the elements of the circular array through a fixed coupling structure. The rotating part is light and its moment of inertia is significantly less than the conventional rotating antenna systems for beam scanning. Therefore, the beam can be steered much faster than the current rotating antenna systems. The details of the structure including the rotating and the fixed parts are presented and a design procedure for the fixed coupling section is suggested. The performance of the feed system is investigated by simulations and measurements. It is shown that the simulations and experimental results are in good agreement. |
Starting Page | 378 |
Ending Page | 384 |
Page Count | 7 |
ISSN | 17518725 |
Volume Number | 10 |
e-ISSN | 17518733 |
Issue Number | Issue 4, Mar (2016) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/10/4 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2015.0429 |
Journal | IET Microwaves, Antennas & Propagation |
Publisher Date | 2016-03-19 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Agile Mechanical Feed System Antenna Accessory Antenna Array Azimuth Plane Beam Steering Circular Array Circular Parallel Plate Waveguide Fast Low-cost Beam Steering Fixed Coupling Structure Fixed Parts Inertia Moment Parallel Plate Waveguide Reflector Antenna Feeds Rotating Part Stable Scanned Beam Two-dimensional Offset Fed Parabolic Reflector Waveguide And Microwave Transmission Line |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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