A dual‐frequency triangular chip antenna for WLAN operation

This article presents a dual‐frequency triangular chip antenna suitable for WLAN operation in the 2.4‐GHz band (2400–2484 MHz) and 5.2/5.8‐GHz bands (5150–5350 MHz/5725–5875 MHz). The proposed triangular chip antenna in this study comprises a right‐angle, isosceles triangular FR4 base of thickness 1.6 mm and area 72 mm 2 and, on the top surface of the FR4 base, a metal line pattern with two branch radiating strips is printed, which generates two separate wide resonant modes for the desired dual‐frequency WLAN operation. Experimental results of a constructed prototype mounted on one of the corners of a grounded substrate (about the size of a compact flash card) are presented and discussed.