A Compact Super Wideband Antenna with Controllable Dual Notch Band Capability
Band notch; Bandwidth dimension ratio; Planar monopole; Super wideband antenna
In this paper, a novel super wideband (SWB) antenna with dual band notch capability is designed and analyzed for wide band applications. The proposed antenna consists of a pentagonal shaped radiator, beveled-shaped partial ground plane with slot and U-shaped parasitic strips. The beveled-shaped defected ground structure with rectangular slot helps to realize wideband characteristics from 2.4 to 28.2 GHz. Independent control of the notch band's center frequency and bandwidth is achieved by using U-shaped parasitic strips. This key feature is achieved in the WiMAX (3.3 to 3.7 GHz) and WLAN (5.1 to 5.9 GHz) bands. Furthermore, it exhibits a stable radiation pattern and offers acceptable gain over the entire operating bandwidth with sharp decrease in gain at the notches. The percentage bandwidth of 169% is achieved with a bandwidth dimension ratio (BDR) of 6986. Group delay is less than 1 ns in the entire operating bandwidth except at the notch bands. The measured reflection and radiation characteristics of fabricated SWB antenna are in good agreement with the simulation results. The proposed antenna has the advantage of simple design and compact size with an overall dimension of 18 x 21 x 1.6 mm3. The performance of the proposed antenna is superior compared to reported antenna designs in terms of controllable sharp notches and size for the bandwidth achieved. 2022 IAMOT
Kadam B.V.; Gudino L.J.; Ramesh C.K.; Rodrigues J.X.
International Journal of Microwave and Optical Technology, Vol-17, No. 6, pp. 592-603.
International Academy of Microwave and Optical Technology (IAMOT)
Kadam B.V., Department of Electrical and Electronics Engineering, BITS Pillai, K. K. Birla Goa Campus Goa, India; Gudino L.J., Department of Computer Science and Information Systems, BITS Pillai, Pillai, India; Ramesh C.K., Department of Electrical and Electronics Engineering, BITS Pillai, K. K. Birla Goa Campus Goa, India; Rodrigues J.X., Department of Electrical and Electronics Engineering, Christ University, Bengaluru, India