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This paper describes the parametric study of a novel rectangular planar ultra-wide band antenna (UWB). The proposed design exploits U and T-shaped notches with stairs at two corners on the radiating patch along with stepped microstrip feed. The stairs are also used at the corners of the partial ground plane with a rectangular notch and an(More)
In this paper a full composite fractal antenna, having a modified Sierpinski fractal antenna with 50-Ω microstrip line, used for dual band wireless applications. The S11 parameter and radiation characteristics of the antenna design indicate that a Sierpinski fractal antenna with circular slot having Dual Band frequency bandwidth from 3.8 GHz to 4.4(More)
In this paper, a new coplanar waveguide CPW fed Modified Circular Patch Antenna (MCPA) is presented. The proposed antenna is designed to operate from 3 GHz to 12 GHz. It consists of a circular patch which is truncated from two sides with respect to feed line. A stub of optimized dimension is attached to other side at a proper location to achieve ultra wide(More)
A modified design of an ultra-wide band antenna (UWB) using stepped feed, partial slotted ground, two level stairs with notches in patch and ground plane is simulated with band rejection feature. The enhanced frequency range (3. 2 to 14. 0 GHz) is covered by the proposed antenna with the overall dimensions of 25. 0 (L) x 20. 0 (W) x 1. 60 (H) mm3. The(More)
A dual band circularly polarized single-feed microstrip antenna for wireless communication systems is proposed here and its performance is tested in free space. This modified rectangular microstrip antenna having one protruded curved edge is simulated by using the IE3D simulation software. In between conducting patch and ground plane, designed antenna has(More)
In this paper, a double-layered frequency selective surface(FSS) superstrate was proposed. The unit cell of the proposed FSS consists of a square slot and a Jerusalem cross structure, which are printed on two sides of the substrate. It is designed on the FR4 dielectric substrate with a relative permittivity of 4.8, loss tangent 0.025 and a thickness of 1.6(More)
This paper presents a compact frequency selective surface (FSS) based band-stop spatial filter for WLAN application which can be useful for modern communication system. The proposed structure is designed on PTFE substrate which have exceptional weather and heat resistance with excellent insulator characteristics. It is a single sided metallic square patch(More)
In this paper, a Band Pass frequency selective surface(FSS) superstrate was proposed for the WLAN applications. Proposed FSS structure is made up of ring slot and a Jerusalem cross, which are etched on two opposite sides of the dielectric substrate. Structure is designed on the FR4 dielectric substrate with a relative permittivity of 4.4, loss tangent 0.025(More)
Flash floods leading to complete submergence of rice plants for 10–15 days is one of the major constraints for rice production, mainly in rainfed lowland areas. In India, 30% of the rice growing area (12–14 M ha) is prone to flash flooding with average productivity of only 0.5–0.8 t ha−1. Coastal Odisha is one of the most flood prone areas of India where(More)
A simple and ultra wide-band patch antenna with semicircular slot and coplanar waveguide is presented in this study. Proposed antenna consist of a three forth circular patch tapered from a micro strip. This antenna is etched on a FR-4 substrate with an overall size of 31mm × 32mm × 1.6mm. Simulated results of proposed antenna are showing that(More)