Development of a Reconfigurable and Miniaturized CPW Antenna for Selective and Wideband Communication
Tóm tắt
The Planar microwave antennas with simultaneously selectively narrowband and wideband resonance characteristics are essential for the diversity applications. The paper presents modeling, fabrication and experimental verification of a coplanar waveguide excited antenna with a complementary patch which exhibits a narrow-band resonance at 2.47 GHz, and a wideband resonance between 5.52 and 11 GHz. A reconfigurability in the antenna design was achieved by placing a PIN diode across the slot position, and the wideband resonance was switched to the narrowband resonance with a center frequency of 9.56 GHz. The device was fabricated on a foam-based substrate of relative permittivity ε
r
= 2.2 and loss factor tanδ = 0.007. The tested antenna shows a comparable matching with the simulated results and a superior performance over the other reported reconfigurable CPW antennas was achieved.
Tài liệu tham khảo
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