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A compact planar monopole antenna with dimensions of 34mm × 25mm × 1.6mm, which could provide an ultra-wide impedance bandwidth with the range from 2.40 GHz to 11.88 GHz is presented in this paper. The antenna consists of a small-sized ground plane, a hexagonal radiating patch, and two L-shaped parasitic strips close to the microstrip-line. Resorting to the two parasitic strips, two additional resonant...
A traditional microstrip antenna is capable of exhibiting good dual-band operation via slotting a complementary codirectional split resonant ring (CCSRR) unit on the rectangular radiating patch. Thanks to the advantage of low mutual coupling between the co-directional ring-slots in such a complementary co-directional split resonant ring unit, the antenna's operating frequency band, which originates...
Complementary SRR was used to expand operation bandwidth of patch antenna. Via etching single Complementary SRR on the radiating patch, a 7.16% fractional bandwidth was achieved, combining two resonance frequencies. It exhibits uniform radiation performance over the whole operation band.
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