Fluidic Stub-Loaded Patch Antenna for Frequency-Tunable Polarization Reconfiguration
نویسندگان
چکیده
This paper presents a fluidically loaded microstrip patch antenna on multi-layered substrate with frequency and polarization reconfigurability in the 2400 MHz band. A square at all corners short circuited λg/4 long stubs is utilized. An arrangement of fluidic channels fabricated by moulding Polydimethylsiloxane (PDMS) 3D printed mould incorporated beneath each stub. By injecting or withdrawing distilled water into channels, variable loads are realized. It exhibits tunable linearly polarized (LP) mode symmetric loading circularly (CP) asymmetric loading. The sense CP can be switched swapping configuration along diagonals patch. equivalent circuit for presented. prototype measured. In LP mode, tuning 7.85% achieved. minimum realized gain 5.67 dBi cross-polarization (X-pol) isolation 20 dB. modes, overlapping bandwidth |S11| -10 dB axial ratio 3 (ARBW) 16 both LHCP/RHCP modes. Frequency 141 (5.76%) measured RHCP mode. 4.86 dBic total efficiency > 60%.
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ژورنال
عنوان ژورنال: IEEE Open Journal of Antennas and Propagation
سال: 2021
ISSN: ['2637-6431']
DOI: https://doi.org/10.1109/ojap.2021.3063281