Dual‐wideband dipole antenna with symmetrical strips for WiMAX and WLAN application

Abstract

A dual-wideband planar dipole antenna for WLAN and WiMAX applications is proposed. The antenna is mainly composed of a U-shaped dipole which is fed by a parallel double transmission line. The U-shaped dipole is employed to generate a wide lower band and a narrow higher band. To expand the higher band, two pairs of strips are used to symmetrically embed in the U-shaped arms of the dipole. The tested results demonstrate that this antenna achieves two wide bandwidths about 53.6% (2.33-4.02 GHz) and 23.7% (5.04-6.45 GHz) at the higher and lower frequency band, which can satisfy the requirement of the whole 2.4/5.2/5.8-GHz WLAN and 2.5/3.5/5.5-GHz WiMAX bands.

Compact SCSRR‐based quad‐band antenna for Bluetooth, WiMAX, WLAN, and fixed‐satellite services

“…It is evident from the simulation and theoretical calculation that the lower bands, namely, 2.53–2.57 and 3.52–5.104 GHz appear due to the presence of non‐natural metamaterial properties of the outer, inner rings in the radiating structure. The complex free structure and compact quad‐band operating feature with a gain above 3 dBi and effective impedance bandwidth in all the operating bands make the suggested SCSRR antenna a better candidate for applications in Bluetooth, WiMAX, WLAN, 43,44 and FSS.…”

A low‐profile dual‐wideband magnetoelectric dipole antenna with stable gain

“…As a result, it is desirable to design a dualwideband base station antenna with good performance for mobile communications. 3,4 Three methods are mainly utilized to design dualband antennas. One method is to combine multiple antennas that work at different frequency bands together as a whole, such as inserting higher band antennas under a lower band crossed dipole antenna, 5 as well as embedding a dipole antenna working at 1.7-2.7 GHz into a bowl-shaped antenna operating at 0.698-0.96 GHz.…”

“…To support all the systems mentioned above, a base station antenna, which has dual wide bandwidths of 31.6% (698–960 MHz) and 44.5% (1710–2690 MHz), is required. As a result, it is desirable to design a dual‐wideband base station antenna with good performance for mobile communications 3,4 …”