We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Dual-band circularly polarised planar monopole antenna for WLAN/Wi-Fi/Bluetooth/ WiMAX applications.
- Authors
Qian Li; Yanyu Wei; Chong Ding; Mingtao Tan; Luqi Zhang; Xia Lei; Gangxiong Wu; Zhanliang Wang; Zhigang Lu; Yubin Gong
- Abstract
A novel planar monopole antenna with dual-band circularly polarisation (CP) is presented here. The antenna consists of a modified L-shaped monopole, an inverted-L strip, and a modified ground. The utilisation of the modified L-shaped monopole not only generates dual-band operation, but also excites CP radiation in the lower band. In order to achieve CP in the upper band, a parasitic inverted-L strip is added on the top plane of the substrate and a modified ground is designed. The proposed antenna has been fabricated and tested, the measured -10 dB reflection coefficient bandwidths are 370 MHz (2.38-2.85 GHz) in the lower band and 2330 MHz (4.05-6.38 GHz) in the upper band. The measured corresponding 3 dB axial ratio (AR) bandwidths are 610 MHz (2.39-3 GHz) and 850 MHz (5.15-6 GHz), respectively. The overlapped -10 dB reflection coefficient and AR bandwidths can totally cover the WLAN bands, Wi-Fi bands, Bluetooth band, and partly cover the WiMAX bands. The proposed antenna owns bidirectional radiation characteristic and reasonable gain at both the lower band and the upper band.
- Subjects
ENERGY bands; POLARIZATION (Electricity); MONOPOLE antennas; WIRELESS LANs; IEEE 802.11 (Standard)
- Publication
IET Microwaves, Antennas & Propagation (Wiley-Blackwell), 2018, Vol 12, Issue 6, p972
- ISSN
1751-8725
- Publication type
Article
- DOI
10.1049/iet-map.2017.0523