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global-journal-of-research-in-engineering-f-electrical-electronic

Global Journal of Research in Engineering - F: Electrical & Electronic

0975-5861 2249-4596

Global Journals Publishing Group Incorporated

74694

A Multiband Free Space Antenna for High Bandwidth Wireless Applications

Hossain

Md. Jobayer

Khan

M. A. Masud

Hossain

Kawser ,

BANGLADESH, Khulna University of Engineering and Technology

15 03 2012

12 F8 21 24

This paper presents a free space wire antenna having two larger bandwidths with satisfactory forward gain, return loss and VSWR. With center frequency 914MHz the antenna provides a bandwidth 174MHz from 880MHz to 1054MHz. Another band lies between 1478MHz and 1540MHz range with center frequency 1508MHz. These two larger bandwidths enable the antenna to support a wide range of wireless applications such as GPS, cellular communication, CT2, ZigBee, Wi-Fi and biomedical applications. The simulation of the antenna in 4NEC2 shows VSWR 1.08002, Return Loss -28.298dB and Gain 1.99dB. The characteristic impedance of the antenna is 49.7346 Ω without the use of any matching network. Both the simulation and experimental result shows that the antenna is omni-directional in nature.

Wire antenna Multiband antenna VSWR Return loss gain bluetooth ZigBee GPS RFID WiMAX.

Full Text

This paper presents a free space wire antenna having two larger bandwidths with satisfactory forward gain, return loss and VSWR. With center frequency 914MHz the antenna provides a bandwidth 174MHz from 880MHz to 1054MHz. Another band lies between 1478MHz and 1540MHz range with center frequency 1508MHz. These two larger bandwidths enable the antenna to support a wide range of wireless applications such as GPS, cellular communication, CT2, ZigBee, Wi-Fi and biomedical applications. The simulation of the antenna in 4NEC2 shows VSWR 1.08002, Return Loss -28.298dB and Gain 1.99dB. The characteristic impedance of the antenna is 49.7346 Î© without the use of any matching network. Both the simulation and experimental result shows that the antenna is omni-directional in nature.