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A Novel Compact Multiband Antenna Design for Wireless Applications

Muneer Ahmed S, Kamran M, Aziz ul haq M

Microstrip patch antennas are becoming essential component in many emerging wireless communication applications. The high demand of these antennas in such devices is due to a number of attractive properties of these antennas. This paper present a novel design of microstrip patch antenna, which can be used in mobile devices for microwave, wireless communication and e-Health applications. The proposed design of the antenna is based on multi rectangular structured slots on the patch in order to operate at multiple frequency bands. The slots are designed on the rectangular patch and fed by a microstrip feeder line. The proposed design and quarter wave transformer feeding technique allows the antenna to operate at multiple frequencies in the range of 2-9 GHz which includes most of the wireless applications. It is shown that six different operational frequency bands have voltage standing wave ratio (VSWR) ≤ 2, which is an acceptable range for short to medium range wireless communication. The operating bands of frequency are: 2.8 GHz, 2.9 GHz, 4.0 GHz, 4.5 GHz, 7.6 GHz and 8.0 GHz with VSWR is ≤ 2. The proposed design shows low values of Return Loss and an efficient transmission of input power.