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In this paper, a small-size ultra-wideband (UWB) multiple-input-multiple-output (MIMO) antenna with triple notched bands and a high isolation, is proposed. Its size is dramatically decreased to 30×26×0.8 mm3 on a cost-effective FR4 substrate. It consists of two rectangular printed monopole (PM) elements and a simple stepped ground stub to enhance wideband isolation. For two different rejected bands...
In this letter, a patch antenna with folded arrowhead-shaped structure is proposed to extend impedance bandwidth, decrease size and enhance gain. The antenna is optimized, fabricated and measured. The measured results indicate that an impedance bandwidth of 85% with Sll<;-10 dB (5.1 GHz to 12.6 GHz) is obtained and the antenna gain fluctuates from 4.4 dBi to 6.6 dBi over the whole bandwidth. The...
In this paper, we propose a band-notched monopole antenna for ultra-wideband applications. The notched band, 5 GHz WLAN band, is created by using a proper-positioned tapped-line coupled resonator on a fork-shaped radiator center. The proposed antenna also features flat gain frequency response, small varied group delay and 10 to 18 dB gain suppression in the notched band. Details of the antenna are...
The primary interest of this work is to create a multi-band antenna that can be used for various wireless LAN standards (e.g. WiFi, WiMax), while occupying a small area. It will be shown that this can be achieved by etching an L-shaped slot in the ground plane of a UWB grounded monopole antenna. The resulting "defected ground plane" creates an additional two resonances in the input impedance...
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