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A Low-Cost Microstrip Antenna for Wireless FidelityApplication- Antenna and Microwave Components

並列摘要


In this paper, an attempt has been made to design a new microstrip-fed monopole antenna for wireless fidelity (Wi-Fi) systems. The proposed antenna is fabricated on the FR4 substrate with dielectric constant of 4.4. By cutting a pair of inverted L-shaped slits in the square radiating patch, a new resonance at lower frequency (2.4GHz) can be achieved, also by inserting two L-shaped slits in the ground plane, the antenna achieves good dual-band operation. The measured impedance bandwidth for l0 dB return loss is from 2.05 GHz to 2.76 GHz (29.9%) and 4.6 GHz to 5.46 GHz (17.0%), covering the 2.4 and 5.2 GHz wireless fidelity operating bands. Simulated and experimental results obtained for this antenna show that the proposed monopole antenna has a good antenna gains and radiation behavior, with a small dimension of 12 × 18 mm^2.

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