Miniaturized Antenna with High Radiation Efficiency Using Ground and Chip Capacitors

Ground antennas are suitable for use in mobile electronic devices due to their compactness. These ground antennas incorporate two capacitors for controlling the resonance frequency and a shorting loop for impedance matching. In this work, we compare the performance of a ground antenna with that of a...

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Veröffentlicht in:	IEICE Transactions on Communications 2012/10/01, Vol.E95.B(10), pp.3328-3331
Hauptverfasser:	CHOI, Hyengcheul, JUNG, Kyung-Young, KIM, Hyeongdong
Format:	Artikel
Sprache:	eng
Schlagworte:	and mobile handset antenna Antennas Applied sciences Exact sciences and technology ISM band Radiocommunications Services and terminals of telecommunications size reduction Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Telephone. Videophone
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Zusammenfassung:	Ground antennas are suitable for use in mobile electronic devices due to their compactness. These ground antennas incorporate two capacitors for controlling the resonance frequency and a shorting loop for impedance matching. In this work, we compare the performance of a ground antenna with that of a meandered inverted-F antenna (IFA). It is numerically and experimentally shown that a ground antenna can yield simultaneous improvements in both the antenna size and radiation efficiency when compared to the meandered IFA. The bandwidth of the ground antenna for a voltage standing wave ratio (VSWR) of 3: 1 is 240MHz from 2350MHz to 2590MHz, while the minimum total antenna efficiency is 62% within the 2.4GHz ISM band.
ISSN:	0916-8516 1745-1345
DOI:	10.1587/transcom.E95.B.3328