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A Solar Cell Compatible Super-Wideband Flexible Transparent Antenna with Enhanced Axial Ratio
Nouman Rasool1, Shuqi Yang1, Chen Chen2
1School of Electronic Information Engineering, China West Normal University, Nanchong 637002, China.
Abstract:
A super-wideband transparent antenna (SWTA) with wide axial ratio bandwidth (ARBW) featuring an enhanced ground plane and microstrip feeding is proposed. The antenna has planar dimensions of 0.20λ0 × 0.20λ0 × 0.003λ0 at its lowest frequency of 1.33 GHz. The antenna is fabricated from a combination of PET and metal oxide thin films, which together enable its flexibility and transparency. The L-shaped strips attached to the ground perturb the electric field in the slot, exciting a pair of orthogonal modes and resulting in circular polarization. The proposed antenna demonstrate high performance with an impedance bandwidth of 182% (1.33-28.52 GHz), an axial ratio bandwidth of 66% (3.88-7.73 GHz), and attain a peak gain of 11.5 dBi. Moreover, with an optical transparency exceeding 90%, this design is a flexible, transparent, super-wideband (SWB) antenna capable of high data rates, easy integration, and beyond-visual-line-of-sight (BVLOS) operations.

