Dual-Wideband Monopole Loaded With Split Ring for Wlan Application

Abstract

Abstract-This paper presents a novel monopole antenna which uses split ring loading in order to achieve a dual-wideband operation for WLAN (2.4/5.2/5.8 GHz) application. By adjusting the split ring position and its natural resonant frequency, the proposed antenna can produce more than 1 GHz wideband match in the 5 GHz band. According to the measured results, the bandwidth with reflection coefficient less than −10 dB is about 715 and 1017 MHz in the two bands. Good radiation patterns are also achieved. The dimensions of the monopole loaded with split ring are 27.2 mm × 16.2 mm × 1 mm, which is suitable for a hallway antenna or ceiling mount antenna of WLAN application.

Asymmetric‐arm printed dipole antenna for wlan applications

“…A dual‐band and low cross‐polarization printed dipole antenna with two asymmetric tapered arms for WLAN applications has been designed, fabricated, simulated and tested. Compared to many antennas proposed in recent papers [2–10], this antenna is designed based on a rather simple structure and suitable for dual‐WLAN‐band applications. The proposed antenna can be considered to achieve dual‐band just through altering the length of the radiation patches.…”

“…In recent years, WLAN applications have experienced a rapid development. So far, various kinds of antenna have been proposed to provide the single 2.4 GHz band operation [2], dual‐band operation (2.4 and 5 GHz) [3–5] and wideband operation [6], especially for enhancing the upper‐band bandwidth to cover both 5.2 and 5.8 GHz bands [3, 4]. However, most of the reported single, dual‐band antenna designs are complex [3, 4] and large [6], with poor E‐ or H‐plane patterns [3–5] and with high cross‐polarization [4].…”