Dual-Band Compact Planar Antenna for a Low-Cost WLAN USB Dongle

Table 1

Measured gain (𝐺) and efficiency (𝜂) of the proposed antenna, when the dongle is plugged in the back of a laptop, at different frequencies (𝑓).

𝑓 (GHz)	2.35	2.45	2.55	5.40	5.50	5.60
𝐺 (dBi)	2.6	2.8	2.8	5.7	5.9	6.8
𝜂 (%)	45.0	59.0	60.9	72.8	75.2	79.3