Open AccessCompact mechanically frequency and pattern reconfigurable patch antenna
Author(s) -
Boukarkar Abdelheq,
Lin Xian Qi,
Jiang Yuan,
Chen Yi Jun,
Nie Li Ying,
Mei Peng
Publication year - 2018
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2017.0917
Subject(s) - antenna (radio) , patch antenna , radiation pattern , acoustics , optics , reconfigurable antenna , microstrip antenna , range (aeronautics) , materials science , antenna measurement , beam (structure) , antenna efficiency , physics , computer science , telecommunications , composite material
The authors propose the design of a compact mechanically frequency and pattern reconfigurable patch antenna. The frequency tuning is achieved by changing the positions of two adjustable shorting screws which are used to modify the length of the antenna radiating patch. Simulated and measured results are carried out to validate the proposed approach. When the screws are symmetrically positioned, the measured operating frequency can be tuned from 2.95 to 5.16 GHz without degrading the radiation characteristics over the entire comparatively wide measured tuning range of 54.5%. The antenna main radiating beam can be tilted from θ = 0° to θ = 30 ° when the screws are asymmetrically positioned. The measured gains and efficiencies range from 3.01 to 5.53 dBi and 68 to 74%, respectively. The overall antenna size is only 0.39 λ 0 × 0.39 λ 0 × 0.02 λ 0 .