Design and analysis of multiband reconfigurable microstrip patch antenna with switchable element

A novel and simple frequency reconfigurable microstrip antenna using a PIN diode for multiband operation is proposed. For designing and simulating the proposed antenna CST Microwave Studio (CST MWS)-2014 tool is used. The effect of slots with a single PIN diode is studied and simulation results were analyzed. For PIN diode ON condition the designed reconfigurable antenna is resonating at 0.42 GHz, 1.407 GHz, 3.31 GHz, 3.96 GHz, 4.76 GHz and 4.99 GHz (six different frequencies) and for OFF condition it is resonating at 3.31 GHz, 3.55 GHz, 4.09 GHz, 4.77 GHz and 5 GHz (five different frequencies). The implemented antenna can be used for L-band, S-band and C-band wireless applications.

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