Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2004-08-20
2008-03-18
Le, Hoanganh (Department: 2821)
Communications: radio wave antennas
Antennas
With radio cabinet
C343S7000MS
Reexamination Certificate
active
07345634
ABSTRACT:
A multiband planar inverted F antenna (PIFA) can provide improved performance and operating efficiency, and utilizes a capacitive element configured to provide high efficiency operation, and a tuning area that allows the antenna to be tuned independently of the capacitive element. As a result of this feature, the antenna can be tuned to the desired operating frequencies, while allowing the capacitive element to remain configured for optimal operating efficiency. The antenna can be configured in a loop for effective utilization of a given volume and can therefore be relatively small in size and high efficiency. A capacitive loading section can be included to allow improved antenna efficiency and radiation. Additionally, tuning section can be provided to allow the antenna to be tuned without adjusting the capacitive loading section. To obtain operation at an additional frequency band, a parasitic element or a slot configuration can be included.
REFERENCES:
patent: 5148181 (1992-09-01), Yokoyama et al.
patent: 5764190 (1998-06-01), Murch et al.
patent: 5966097 (1999-10-01), Fukasawa et al.
patent: 6297776 (2001-10-01), Pankinaho
patent: 6456249 (2002-09-01), Johnson et al.
patent: 6614400 (2003-09-01), Egorov
patent: 6903687 (2005-06-01), Fink et al.
patent: 7012570 (2006-03-01), Chen et al.
patent: 2001/0007445 (2001-07-01), Pankinaho
patent: 2002/0070902 (2002-06-01), Johnson et al.
patent: 2002/0140612 (2002-10-01), Kadambi et al.
patent: 2002/0186169 (2002-12-01), Iwai et al.
patent: 2004/0070537 (2004-04-01), Kadambi et al.
patent: 2004/0140933 (2004-07-01), Shikata et al.
patent: 2004/0145521 (2004-07-01), Hebron et al.
patent: 2004/0198293 (2004-10-01), Sadler et al.
patent: 2005/0116875 (2005-06-01), Yuanzhu et al.
patent: 2005/0184914 (2005-08-01), Ollikainen et al.
patent: 2006/0033667 (2006-02-01), Johnson
Li et al., “Development And Analysis Of A Folded Shorted-Patch Antenna With Reduced Size”, IEEE Transactions On Antennas And Propagation, vol. 52/2, pp. 555-562, Feb. 2004.
Li et al., “Development and Analysis of a Folded Shorted-Patch Antenna With Reduced Size”, IEEE Transactions on Antennas and Propagation, vol. 52/2, pp. 555-562, Feb. 2004.
Rowell, C.R. et al., A Compact PIFA Suitable for Dual-Frequency 900/1800-MHz Operation, IEEE Transactions on Antennas and Propagation, vol. 46/4, pp. 596-598, Apr. 1998.
Taga, T., “Analysis of planar inverted-F antennas and antenna design for portable radio equipment”, in Analysis, Design & Measurement of Small & Low-Profile Antennas, K. Hirasawa & M. Haneishi, Eds. Norwood, MA, Artech House, pp. 161-180, 1992.
Ozkar Mete
Poilasne Gregory
Kyocera Corporation
Le Hoang-anh
LandOfFree
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