Planar compact triple-band monopole antenna for IEEE 802.16m WiMAX application

Abstract

Planar compact monopole antenna design with triple-band operation for the IEEE 802.16 m worldwide interoperability for microwave access (WiMAX) system is proposed. By adding C-and L-shaped monopole strips to the antenna, excitation of multiresonant modes can approximate the 2.6, 3.5, and 5.5 GHz bands required for WiMAX (IEEE 802.16 m) operations. The obtained impedance bandwidths across the operating bands approach 168/325/1208 MHz for the 2.6/3.5/5.5 GHz bands, respectively. The proposed uniplanar antenna reduces the antenna size by at least 15%, since overall antenna volume is only 22  28  0.8 mm 3 (0.19 λ o  0.243 λ o  0.007 λ o , at 2.6 GHz). The measured peak gains and radiation efficiencies approximate 3.0/4.2/4.5 dBi and 77/76/83% in the 2.6/3.5/5.5 GHz band, respectively, and exhibit a nearly omni-directional pattern in the XY-plane.

Broadband tapered planar monopole antenna with parasitic elements for multiple wireless operations

“…Conductive parasitic elements placed in close proximity to a radiator are known to enhance bandwidth and impedance performances . Impact of parasitic elements on planar antenna performance has been examined in previous studies . Moreover, ultra wideband planar antennas with band‐notch filtering capability by using parasitic elements have been of interest …”

Design and analysis of a novel tri-band flower-shaped planar antenna for GPS and WiMAX applications

“…However, these antennas are primarily aimed for WLAN applications. Monopole antennas for WiMAX and WLAN bands are reported in [19][20][21][22][23][24]. Multi-band antennas for GPS, WLAN and WiMAX applications are also published [25,26].…”