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A periodic frequency selective surface (FSS) having triple frequency band reject behaviour has been proposed with a square and two dodecagon shaped element. These three elements of the FSS unit cell are embedded on the FR-4 substrate, which acts as a triple band reject filter on the frequency band 1.8 GHz, 2.5 GHz and 5.5GHz to avoid the leakage of GSM, WiMax and WLAN signal outside the building....
The paper exhibits a novel design of stair cased shaped fractal antenna for multiband applications. The antenna is designed on FR4 glass epoxy substrate with parameters like thickness 1.6mm, dielectric constant 4.4 and resonant frequency 3.8GHz. Proposed antenna is simulated and coaxial feed is used to analyze its performance. Maximum value of gain observed is 7.51dB. The HFSS version 13 software...
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