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Title: A triband circularly polarized strip and SRR-loaded slot antenna
Authors: Paul, P.M.
Kandasamy, K.
Sharawi, M.S.
Issue Date: 2018
Citation: IEEE Transactions on Antennas and Propagation, 2018, Vol.66, 10, pp.5569-5573
Abstract: In this communication, a simple and compact multiband circularly polarized (CP) slot antenna loaded with metallic strips and a split-ring resonator (SRR) is proposed. The multiband operation is obtained via exciting the SRR and copper strips by the microstrip-fed square slot antenna. The SRR resonates at 1.83 GHz, while the strips and the slot antenna provide resonances at 2.5 and 3.1 GHz. Resonant modes of loaded SRR and strips combined with the fundamental mode of the slot produce CP waves at the resonance frequencies of the proposed antenna. The proposed antenna allows for independent tuning of different bands via the use of the tilted strips and the SRR. Also, the sense of polarization at the resonance frequencies can be controlled by changing the orientation of the strips and the SRR with respect to the slot. The proposed antenna is fabricated on an FR-4 substrate of dimension 50 50 1.56 mm3. Antenna performances in terms of 10 dB return loss bandwidth, 3 dB axial ratio bandwidth, gain, and efficiency are validated experimentally and are in a good agreement with the simulated results. 2018 IEEE.
URI: 10.1109/TAP.2018.2854911
Appears in Collections:1. Journal Articles

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