Abstract
An E-shaped patch antenna fed by a folded L-shaped probe is proposed. The shorted wall loading is employed to make the antenna compact, and the lateral size is only 0.196 λL × 0.221 λL, where λL is wavelength at the lower cutoff frequency of the measured operating bandwidth in the free space. Three adjacent resonances are utilized to achieve a broad band while keeping the antenna very low profile. The air substrate is only 4 mm (i.e., 0.029 λL) thick, and the measured impedance bandwidth is about 19.8% (with a central frequency of 2.378 GHz). The procedure of optimal design is also described.
Original language | English |
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Journal | IEEE Transactions on Antennas and Propagation |
Volume | 57 |
Issue number | 6 |
Pages (from-to) | 1838-1843 |
Number of pages | 6 |
ISSN | 0018-926X |
DOIs | |
Publication status | Published - 2009 |
Externally published | Yes |
Bibliographical note
Funding Information:Manuscript received February 28, 2008; revised November 27, 2008. Current version published June 03, 2009. The work was supported in part by the National Basic Research Program (973) of China (2004CB719802) and in part by the Science and Technology Department of Zhejiang Province (2005C31004).
Keywords
- Broadband antennas
- E-shaped patch
- L-shaped probe
- Low profile
- Multiresonance