Compact mechanically frequency and pattern reconfigurable patch antenna

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...

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Bibliographic Details
Published in:IET microwaves, antennas & propagation Vol. 12; no. 11; pp. 1864 - 1869
Main Authors: Boukarkar, Abdelheq, Lin, Xian Qi, Jiang, Yuan, Chen, Yi Jun, Nie, Li Ying, Mei, Peng
Format: Journal Article
Language:English
Published: The Institution of Engineering and Technology 12.09.2018
Subjects:
antenna feeds
antenna main radiating beam
antenna radiating patch
antenna radiation patterns
broadband antennas
compact mechanically frequency
comparatively wide measured tuning range
frequency 2.95 GHz to 5.16 GHz
frequency tuning
measured operating frequency
microstrip antennas
microwave antennas
pattern reconfigurable patch antenna
Research Article
UHF antennas
compact mechanically frequency
microwave antennas
frequency 2.95 GHz to 5.16 GHz
antenna main radiating beam
comparatively wide measured tuning range
broadband antennas
microstrip antennas
pattern reconfigurable patch antenna
antenna radiating patch
antenna radiation patterns
UHF antennas
antenna feeds
measured operating frequency
frequency tuning
ISSN:1751-8725, 1751-8733
Online Access:Get full text
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Summary: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 0.39λ0 × 0.39λ0 × 0.02λ0.
ISSN:1751-8725
1751-8733
DOI:10.1049/iet-map.2017.0917