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A capacitively loaded PIFA for...

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A capacitively loaded PIFA for compact mobile telephone handsetsIEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 45, NO. 5, MAY 1997

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A Capacitively Loaded PIFA for Compact Mobile Telephone Handsets
Corbett R. Rowell, Student Member, IEEE, and R. D. Murch, Member, IEEE
Abstract― A capacitively loaded planar inverted-F antenna (PIFA) is proposed and studied. It is found that the capacitive load reduces the resonance length of the PIFA from =4 to less than =8. A design with a bandwidth of 178 MHz centered at 1.8 GHz is provided to demonstrate that compact antennas for mobile telephone handsets can be constructed using this approach. The nite-difference time-domain (FDTD) method is used in the study and experimental verication is also provided. Index Terms― FDTD methods, mobile antennas.

I. INTRODUCTION N recent years, the demand for compact mobi……
A capacitively loaded PIFA for...
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