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Title: Semi Circular Semi Hexagon Microstrip Antenna Integrated with DRA for Cognitive Rradio Applications
Authors: Ananda Raju, P
Kumar, N
Behera, S K
Keywords: Cognitive radio
Coplanar waveguide
Dielectric resonator antenna (DRA)
Issue Date: Apr-2015
Publisher: IEEE
Citation: 4th IEEE International Conference on Communication and Signal Processing-ICCSP'15, Melmaruvathur, Tamilnadu, India, 2-4 April,2015.
Abstract: An ultra-wideband (UWB) planar microstrip antenna integrated with a narrow–band cylindrical dielectric resonator antenna (DRA) is presented for cognitive radio applications. The proposed antenna is a combination of semicircular-semi hexagon shape microstrip patch, which is fed by coplanar waveguide (CPW). The dielectric resonator antenna (DRA) is cylindrical in shape excited by a microstrip slot fed on the rear side which shows a narrow band (NB) characteristics. The microstrip antenna provides a wide bandwidth operates from 2.58 GHz to 14 GHz. The DRA provides a narrow bandwidth operates from 10.07 GHz to 11.38 GHz. The UWB antenna is used for sensing the spectrum and the narrow-band DRA used for communication operation. A very good isolation between the two antenna ports (S21 less than -15 dB) are also achieved. Compared to the existing designs the peak gain of the antenna is highly increased around 6.15 dB.
Description: Copyright belongs to the Proceeding of Publisher
Appears in Collections:Conference Papers

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