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Single-plate, two-in-one PIFA for 2.4 GHz modules

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3 Author(s)
Saou-Wen Su ; Network Access Strategic Business Unit, Lite-On Technology Corporation, New Taipei 23585, Taiwan ; Cheng-Tse Lee ; Fa-Shian Chang

A two-in-one, planar inverted-F antenna (PIFA) having two signal feeding ports to operate in the 2.4 band for wireless module applications is proposed. The PIFA was of a symmetrical structure and can be fully integrated into the printed circuit board (PCB) of the module by through-hole soldering. The design was comprised of two sub-antennas of identical size and had two shorting portions linked by a horizontal strip. This structure allows the antenna to be stamped from one metal plate only at low cost and surface mountable as a dual-in-line package (DIP) component with four leads. Further, by incorporating a decoupling, neutralization line shunted at around the two shorting portions, the antenna port isolation less than -20 dB over the 2.4 GHz band can be achieved.

Published in:

Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation

Date of Conference:

8-14 July 2012