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Miniaturized Antenna with High Radiation Efficiency Using Ground and Chip Capacitors
- Issue Date
- Oct-2012
- Publisher
- Oxford University Press
- Keywords
- antenna; size reduction; ISM band; mobile handset
- Citation
- IEICE Transactions on Communications, v.E95B, no.10, pp 3328 - 3331
- Pages
- 4
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- IEICE Transactions on Communications
- Volume
- E95B
- Number
- 10
- Start Page
- 3328
- End Page
- 3331
- ISSN
- 0916-8516
1745-1345
- Abstract
- 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 240 MHz from 2350 MHz to 2590 MHz, while the minimum total antenna efficiency is 62% within the 2.4 GHz ISM band.
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