A low profile dual band dual C - shaped monopole antenna for Wi-Fi, WiMAX and WLAN applications

Abstract

This article presents a low-profile dual-band, dual C-shaped monopole antenna designed for Wi-Fi, WiMAX, and WLAN applications. The simulated results demonstrate that the proposed antenna achieves a 10 dB return loss and an impedance bandwidth ranging from 2.3–3.0/2.5 GHz and 4.1–6.0/5.1 GHz. The antenna configuration consists of two Cshaped branches, one inverted to the other, along with a ground plane. This design enables the antenna to generate two resonant frequencies while maintaining good radiation patterns and gain characteristics. Simulations were conducted on an FR-4 Epoxy substrate, resulting in a compact, low-profile size of 38×26×0.8 mm3. The obtained impedance bandwidth is 28% for the 2.5 GHz frequency range and 37.25% for the 5.1 GHz frequency range. Additionally, the simulated gain is reported as 3.5 dBi for 2.5 GHz and 3.0 dBi for 5.1 GHz. The proposed antenna offers a compact size, dual-band operation, wide impedance bandwidths, and reasonable gain levels, making it well-suited for Wi-Fi, WiMAX, and WLAN applications. Its design ensures efficient performance, allowing reliable wireless communication in the desired frequency bands. With its small form factor, the antenna can be easily integrated into various devices while maintaining excellent radiation patterns and achieving the desired impedance matching. Overall, the proposed antenna presents a promising solution for dual-band applications in the wireless communication industry.