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Design of a simple compact printed microstrip fed 9-shaped monopole antenna for the WLAN and radio frequency identification (RFID) applications is presented. The antenna has the radiating element (having a 9-shaped structure), which supports resonances with large bandwidths for dual band RFID and WLAN applications. Effectively omnidirectional radiation pattern and large impedance bandwidth has been observed. Impedance bandwidth for -10 dB return loss around the 2595 MHz and 5180 MHz center frequencies reaches 639 MHz (2316 MHz to 2955 MHz) and 2372 MHz (3928 MHz to 6300 MHz) respectively.
Date of Conference: 29-31 July 2010