A Compact Asymmetric Coplanar Strip (ACS) Antenna for WLAN and Wi-Fi Applications

An asymmetric coplanar strip (ACS)-based compact antenna for multiband applications is presented in this paper. Antennas are miniaturized using ACS methods. The antenna is dimension is 14×25×1.6 mm
³
, making it exceedingly small. The suggested antenna is made of FR4 material with a
$\mathbf{\epsilon} \mathbf{r}=\mathbf{4.4}$
and a thickness of 1.6. To achieve multiband features, the monopole antenna is modified by including semi-circle and 5-shaped pieces in the radiating structure. The WLAN band (2.30-2.71 GHz), Wi-MAX (3.37-3.97 GHz), and Wi-Fi (5.17 -6.40 GHz) bands are all applicable to the proposed antenna. At 2.5GHz, 3.6GHz, and 5.4GHz, the antenna's bandwidth is receiving at 410 MHz, 600 MHz, and 1230 MHz. All three bands have VSWR values below 1.4.