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Novel metasurface-backed loop antenna is proposed for ISM-band wearable devices. The antenna is printed on a small-area and thin substrate the bottom of which is designed to get the characteristics of artificial magnetic conductor(AMC) for acceptable antenna performances and robustness over human skin contact. The advantages and validity of the structure are verified by full-wave simulation and experiments.
This paper presents a new method to improve the isolation between two nearly contacting dipole antennas of the same orientation. A thin metasurface is put in parallel with them, and devised to absorb the interfering electromagnetic field from one dipole antenna not to reach the neighboring radiating element by imitating mu-negative characteristics. The isolation gets better by over 10 dB, while the...
In this paper, novel metasurface-backed dipoles are proposed. The dipoles are printed on a thin substrate the bottom of which is designed to get the characteristics of artificial magnetic conductor(AMC) for acceptable antenna performances. The structure is exemplified to resonate at 2.4 GHz as a relatively low frequency. The properties of the proposed AMC-backed dipoles are investigated in terms of...
In this paper, a slot coupled dipole antenna was presented for dual band passive RFID tag applications. Structures using a slot coupled feed and a resonator are explored to achieve dual band operation. It shows good impedance and radiation characteristics from 860 MHz to 960 MHz (ISO 18000-6) and from 2.40 GHz to 2.50 GHz (ISO 18000-4). The return loss is verified by comparing the calculations and...
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