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A method to measure the radiation characteristics of portable antennas during their development stages using a human-equivalent phantom to suppress the undesired current leakage along the RF feeding cable has been proposed and investigated. The basic assessment of the 351 proposed method was conducted through radiation pattern measurements using a scale model phantom as well as FDTD simulations. The...
The radiation pattern of an optimized Yagi-Uda antenna does not suffer from the minor radius alteration (such as 1/2: 50% reduction or 1/4: 75 % reduction) of elements even if the alteration is uniform for entire elements. The minor step-tapered design alteration in radius of radiating elements greatly affects the radiation characteristics of the Yagi-Uda antenna, which is originally designed with...
Impedance and radiation characteristics of offset-fed slot antenna have been investigated for the reception of digital terrestrial TV broadcasting at 600 MHz including the effects of human hands and LCD (liquid crystal display) panel. First, the impedance characteristics of center-fed slot antenna have been obtained using finite difference time domain (FDTD) method. Then the impedance characteristics...
Impedance and radiation characteristics of offset-fed slot antenna have been investigated for the reception of digital terrestrial TV broadcasting at 600 MHz including the effects of human hands. The proposed antenna is suitable for embedding at the back of notebook computers' display. First, the impedance characteristics of center-fed slot antenna have been obtained using finite difference time domain...
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