Hexagonal Nonradiating Edge-Coupled Patch Configuration for Bandwidth Enhancement of Patch Antenna
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2014 by IJETT Journal|
|Year of Publication : 2014|
|Authors : Krishn Kant Joshi , NVSN Sarma
Krishn Kant Joshi , NVSN Sarma . "Hexagonal Nonradiating Edge-Coupled Patch Configuration for Bandwidth Enhancement of Patch Antenna", International Journal of Engineering Trends and Technology (IJETT), V11(5),231-236 May 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
For increasing the impedance bandwidth of patch antenna two novel configurations are described for the ISM band applications. A hexagonal patch structure is used in both of the configurations. First structure uses six additional patches which are gap-coupled to the each nonradiating edge of the original hexagonal patch whereas in the second configuration fractals are used in each of the hexagonal of first order. HFSS is used for the simulation. The simulation result shows that with a regular hexagonal patch which gives 6% of impedance bandwidth, a slight improvement in bandwidth with respect to square patch can be achieved. Further with the two novel configurations up to 15.5% of the impedance is achieved. The result shows that the fractal configuration is suitable for the circularly polarized radiation. The simulated gain over the operating band is found to be more than 9-dB.
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Hexagonal patch, Edge gap-coupled, Parasitic patch, Return loss, Impedance bandwidth, Fractal.