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We present an electrically small antenna for use with high efficiency power amplifiers for wireless applications. A planar inverted-F antenna design is described that can be optimized as a class-F termination for use as a load at the output of a field effect transistor (FET) for optimum output power and efficiency. An active planar inverted-F antenna is shown to have greater than 50% power-added efficiency at several frequencies between 1 GHz and 2 GHz by scaling the radiating element. These antennas are also shown to provide a copolarized field component in the azimuth plane and a cross-polarized field component in the elevation plane.
Published in:
Antennas and Propagation, IEEE Transactions on
(Volume:51
,
Issue:
10
)
Date of Publication: Oct. 2003
- Page(s):
- 2899 - 2906
- ISSN :
- 0018-926X
- INSPEC Accession Number:
- 7765949
- Digital Object Identifier :
- 10.1109/TAP.2003.818007
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 14 October 2003
- Issue Date :
- Oct. 2003
- Sponsored by :
- IEEE Antennas and Propagation Society
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