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Title: Electrically small UAV antenna design using characteristic modes
Authors: Chen, Y.
Wang, C.-F. 
Keywords: Antenna placement
characteristic modes
electrically small UAV
structural antenna
Issue Date: Feb-2014
Citation: Chen, Y., Wang, C.-F. (2014-02). Electrically small UAV antenna design using characteristic modes. IEEE Transactions on Antennas and Propagation 62 (2) : 535-545. ScholarBank@NUS Repository.
Abstract: This paper presents a novel concept of antenna design for an electrically small unmanned aerial vehicle (UAV) using the theory of characteristic modes. With the knowledge of the characteristic modes of the UAV body, a multi-objective evolutionary algorithm is implemented to synthesize currents on the UAV body for achieving desired power patterns. Compact and low-profile feed structures are then designed to excite the synthesized currents. The feed structures are termed as probes, as they are used to excite the currents on the UAV body and cannot work as standalone antennas. The UAV body excited by these probes serves as the radiating aperture. Its reconfigurable radiation patterns are obtained by feeding each probe with proper magnitude and phase. In this method, the aperture of the UAV body is fully utilized. Practical issues associated with large antennas at low frequency band are eliminated. Knowledge for probe placement on such platform becomes more explicit. Simulated and measured results are presented to verify the design concept. © 2013 IEEE.
Source Title: IEEE Transactions on Antennas and Propagation
ISSN: 0018926X
DOI: 10.1109/TAP.2013.2289999
Appears in Collections:Staff Publications

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