A planar inverted-F antenna (PIFA) with an input match designed to offer the capability of a front-end bandpass filter in mobile communication transceivers is presented. The proposed antenna is low cost, easily fabricated, and operates in the unlicensed lower band (3.168–4.752 GHz) of the ultra-wideband (UWB) communication standard with a 3.57:1 VSWR. It is demonstrated that the antenna possesses a radiation pattern with good front-to-back ratio and shows acceptable impedance matching in proximity to large ground planes making it suitable for applications such as in-vehicle communications.
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Zuazola et al. (2010) studied this question.