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Dual-frequency broadband antenna for mobile device applications

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3 Author(s)
Ting Zhang ; South China University of Technology, Guangzhou 510641, China ; Ronglin Li ; Manos M. Tentzeris

This paper proposes a low profile monopole antenna which achieves a dual-frequency broadband operation at 900 MHz with a bandwidth of ~42% (790~1215) and at 1900 MHz with a bandwidth ~53% (1710~3000 MHz). The proposed antenna has an inverted F strip and a meandered strip directly fed by the microstrip line on the front side and has an S strip terminated at a ground plane. The lower sections of the inverted F strip and the S strip overlap and form a two-strip monopole. The mutual coupling of the two-strip lines has a significant effect on the bandwidth enhancement. The Antenna structure is described in detail and its performance is validated by experimental results.

Published in:

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Date of Conference:

3-8 July 2011