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We developed a PIFA made of flexible printed circuit, which is available for Bluetooth and IEEE802.11a/b/g applications. We measured the characteristics of the antenna when it is folded along the coaxial cable. It is shown that the characteristics do not vary much when the angle of folding is less than 90deg. The performance is confirmed by a simulation based on the FDTD method. The antenna is expected...
Printed inverted-F antennas (PIFA) are very popular choice of internal antenna for cellular handsets, owing to its ease of design to achieving multiple frequency resonances. When having multiple resonating frequency structure in a single embodiment, tuning of the resonant frequency can be very tricky. Lherefore, it is desired to have frequency independent tuning of two or more separate frequencies...
This paper proposed a PIFA with an artificial cardiac pacemaker for use of MICS. The calculation model is composed of the PIFA and the pacemaker embedded in the 2/3 muscle-equivalent phantom. The distance between the surface of the phantom and the antenna is changed and the model is numerically analyzed by use of the FDTD method. Numerical results show that as the distance d increases, the real part...
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