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This paper proposes an isolation-improvement technique for a MIMO antenna in small portable devices, by utilizing a one-dimensional electromagnetic bandgap (1-D EBG) and folded slot structures. Since the 1-D EBG structure provides in-phase reflection properties, and the folded slot structure acts as a decoupling resonator due to dissipation of radiated energy, mutual coupling among the antenna elements...
Antennas backed with one-dimensional electromagnetic band-gap (1-D EBG) reflectors were designed for the multiple-input–multiple-output (MIMO) application. The two monopole antennas together with the 1-D EBG reflectors were patterned onto a folded flexible printed circuit board (FPCB). The antennas could be placed in close proximity to the EBG reflectors due to the reflection characteristics of the...
It is important to accurately measure the ICRF antenna parameters for the estimation of RF power transmission to KSTAR fusion plasmas. Due to the complexity of a 4-loop antenna with mutual couplings, it is not easy to measure those parameters directly. In this presentation, a method to determine those antenna parameters more precisely by applying measured S-parameters to a coupled transmission line...
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