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Radiation Pattern Reconfigurable Antenna for IoT Devices
Author(s) -
Zakaria Mahlaoui,
Eva AntoninoDaviu,
Miguel FerrandoBataller
Publication year - 2021
Publication title -
international journal of antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.282
H-Index - 37
eISSN - 1687-5877
pISSN - 1687-5869
DOI - 10.1155/2021/5534063
Subject(s) - reconfigurable antenna , radiation pattern , radiation , antenna (radio) , pin diode , electrical impedance , diode , computer science , mode (computer interface) , electronic engineering , optoelectronics , optics , electrical engineering , physics , antenna efficiency , engineering , telecommunications , operating system
Based on the characteristic mode theory, a versatile radiation pattern reconfigurable antenna is proposed. The analysis starts from two parallel metallic plates with the same and different dimensions. By means of two PIN diodes, the size of one of the parallel metallic plates can be modified and consequently the behavior of the radiation pattern can be switched between bidirectional and unidirectional radiation patterns. Moreover, a SPDT switch is used to adjust the frequency and match the input impedance. The reconfigurable antenna prototype has been assembled and tested, and a good agreement between simulated and measured results is obtained at 2.5 GHz band which fits the IoT applications.

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