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A low-profile and miniature antenna is developed to host circular polarization(CP). Primarily, the dual-mode CP, say RHCP and LHCP, is created by the currents at the two orthogonal negative resonance modes of a flat metamaterial antenna as the authors' work back in 2012–2013. Secondarily, this structure is extended to a — 1st-resonance mode array antenna with the dual sequential rotation CP performance...
A compact dual-band 3-way metamaterial power divider with the in-phase outputs is presented. Firstly, fully printed CRLH(composite right and left-handed) 2∶1-unequal and 1∶1-equal power dividers are designed for 900-MHz and 2.4-GHz bands. Secondly, an initial 1∶1∶1 power divider is formed by combining the input of the 2-way equal block into an output of the unequal block, and trimming the interconnection...
This paper presents a new method to improve isolation between two loop antennas with absorber cells exhibiting negative permittivity and permeability at the aimed frequency of 2.45 GHz. The metamaterial (MTM) unit cell was constructed by two open complimentary split ring resonator (OCSRR) and a split ring resonator (SRR) arrangement. The proposed antenna structures were composed of two loop antennas...
This paper presents a compact double negative metamaterial (MTM) absorber unit cell four-element arrayed electric-LC (ELC) resonators. Overall size of the proposed unit cell is 9mm × 9mm × 2mm. The proposed four-element arrayed ELC resonator where the external magnetic field is normal to the plane of the ELC resonator substrate, and the electric field is parallel to the capacitor plate exhibit a negative...
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