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This letter presents a printed circuit board (PCB)-based nonplanar dipole antenna with a flat reflector for low-profile ultrawideband applications. Physical fundamentals of the proposed antennas are summarized and discussed. Design considerations, modeling, and implementation methods are introduced in detail. A prototype antenna was fabricated and tested to verify the presented results. The prototype antenna has a measured impedance bandwidth of 7.2 GHz from 2.8 to 10 GHz, and it also possesses stable unidirectional radiation patterns up to 6.0 GHz, which is suitable for many broadband applications.
Antennas and Wireless Propagation Letters, IEEE (Volume:11 )
Date of Publication: 2012