Abstract
A compact multi-band antenna using a zeroth order resonator (ZOR) loaded with a split ring resonator (SRR) and modified ground plane is proposed in this paper. The antenna resonates at 2.8 GHz, 4.3 GHz and 5.8 GHz. The antenna has a compact size of only 28.3 × 24 × 1.524 mm3. The ZOR antenna resonates at 2.8 GHz and the loading of SRR on the back side of the antenna produces the resonance at 4.3 GHz without affecting the ZOR mode. The modified ground plane provides an additional band at 5.8 GHz. The proposed antenna is simulated, fabricated and tested. The measured −10 dB impedance band width of 300 MHz, 350 MHz and 450 MHz is observed in the respective bands. Omni-directional radiation patterns are obtained at all the three bands.
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