Fractal monopole antenna for WLAN USB dongle
ABSTRACT This article presents the design and fabrication of a simple printed fractal monopole antenna for WLAN USB dongle applications. The proposed antenna uses the combination of meander line and fractal geometry, which is very simple and easy to fabricate, to achieve a multiband operation characteristic. The parameters of this antenna were optimized through numerical simulations in Ansoft HFSS, after which the antenna has been fabricated and characterized. The measurement results show that the proposed antenna has a -10 dB return loss bandwidth of 2.22 to 2.52 GHz and 5.03 to 5.84 GHz, which covers the entire required band for WLAN 802.11a/b/g standards. Moreover, from the simulation results, it is also observed that this proposed antenna exhibits constant gain of 1.8 dBi with 95% radiation efficiency in the lower band and 2.4 dBi with 94% radiation efficiency in the upper band, respectively.
Conference Paper: A USB Dongle Antenna for Multiband Applications2014 International Symposium on Computer, Consumer and Control (IS3C); 06/2014
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ABSTRACT: There is a current upsurge for the high data rate and wide bandwidth in the communication technologies. This has posed several challenges for the researchers. These challenges include but are not limited to size reduction, high efficiency, and low-cost. The prevailing fashion in the communication system is to integrate several WLAN standards in small user equipment. The emergence of the USB dongle for WLAN has attracted the antenna design engineers to design multi band antennas. The antenna size is restricted to the small size of the USB dongle. The main challenge is to reduce the antenna size without compromising on the performance related characteristics such as; wide bandwidth, low VSWR, high gain and high radiation efficiency. In this paper a novel Koch-meander Fractal antenna has been proposed for the application of WLAN USB dongle. The proposed compact antenna is simulated in CST microwave studio. The simulation results depicts that the antenna has a -10 dB return loss bandwidth of 2.2909-2.553 GHz and 5.1406-5.8737 GHz. The minimum return loss of -28.9 dB is achieved at the lower band of 2.41 GHz. While the upper band depicts a return loss of -20.8 dB at 5.36 GHz. The proposed antenna is capable of covering the whole band required for the WLAN 802.11 a/b/g standards.Open Systems (ICOS), 2011 IEEE Conference on; 01/2011
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ABSTRACT: By coupling a fractal loop resonator onto the back of a loaded-fractal loop monopole and a shorted loop, a new triple-band USB dongle antenna has been achieved and presented. The proposed antenna supports WLAN (2.4-2.5 GHz and 5.15-5.875 GHz) and WiMAX (3.4-3.6 GHz) applications. Omnidirectional radiation patterns for the three bands are observed. The overall dimensions of the fabricated prototype are 10 mm × 42 mm ×0.8 mm, which is suitable for USB dongle. The design of proposed antenna and experimental results are discussed.Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2012 9th International Conference on; 01/2012