Bandwidth Enhancement using Capacitive Coupling and Stubs in a Printed Wide Slot Antenna | Zendy

Kanaujia Binod Kumar | Zendy

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Bandwidth Enhancement using Capacitive Coupling and Stubs in a Printed Wide Slot Antenna

Author(s) -

Kanaujia Binod Kumar

Publication year - 2015

Publication title -

international journal of engineering research and

Language(s) - English

Resource type - Journals

ISSN - 2278-0181

DOI - 10.17577/ijertv4is030245

Subject(s) - capacitive coupling , bandwidth (computing) , capacitive sensing , materials science , optoelectronics , coupling (piping) , electrical engineering , electronic engineering , telecommunications , computer science , engineering , voltage , composite material

A novel design of a dual band antenna, consisting of U-L shaped structure with wide slot in the ground plane is presented. To improve the bandwidth, capacitive coupling and stubs are introduced in the radiating element. Further to improve the bandwidth, a wide slot in the ground plane is employed. The proposed antenna is printed on 1.6 mm thick FR4 substrate which has a relative permittivity of 4.4 and a loss tangent of 0.008. The radiating element size is 20 X 18 mm. The measured impedance bandwidth for the first band is 3.7 4.2 GHz (12.66%) and second band is 5.3 6.9 GHz (26.23%) at 5.6 GHz. The peak gain is around 4 dBi at 5.6 GHz.

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