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Electrically small antenna with switchless pattern reconfiguration

: Narbudowicz, A.; Ammann, M.J.; Heberling, D.


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Antennas and Propagation Society:
IEEE Antennas and Propagation Society International Symposium 2017. Proceedings : July 9-14, 2017, Manchester Grand Hyatt, San Diego, California, USA
Piscataway, NJ: IEEE, 2017
ISBN: 978-1-5386-3284-0
ISBN: 978-1-5386-3283-3
ISBN: 978-1-5386-0898-2
International Symposium on Antennas and Propagation <2017, San Diego/Calif.>
Fraunhofer FHR ()

An electrically small pattern reconfigurable antenna is proposed. It allows adjustment of the radiation pattern by applying a phase shift between its two ports. The structure is a cylinder with λ/5 diameter. Simulated results show good operation at 2.44 GHz and three different radiation patterns are demonstrated by applying three different phase shifts. The antenna's principles of operation and limitations are explained based on the theory of spherical modes.