Abstract According to the findings of article, researchers looked at graphene-based hexagonal microstrip patch antennas. In place a U-shaped slot and an elliptical slot, ellipse-shaped was cut into surface radiators that were used in designs recommended. This helped improve radiation performance radiators. A frequency known as ultra-wideband (UWB) is modelling process for anticipated structures...

Recently, wireless-PAN systems using a UWB technique are considered. Antennas such as a planar trapezoidal monopole or dipole antenna for a UWB was developed.[1],[2] Since a 5 GHz band is allocated for wireless LAN service such as an IEEE802.11a, a UWB antenna should have a band notch to avoid an interference between two systems. To fulfil this requirement, several UWB antennas having a band no...

This paper describes the results of an ultrawideband (UWB) propagation study in which arrays of propagation measurements were made. After a description of the propagation measurement technique, an approach to the spatial and temporal decomposition of an array of measurements into wavefronts impinging on the receiving array is presented. Based on a modification of the CLEAN algorithm, this appro...

A compact rectangular printed antenna with dual band-notches is proposed for ultra-wideband (UWB) applications. The dual band-notch characteristics have been realized by etching one C-shaped parasitic element and rectangular split ring resonator above the ground plane. The proposed antenna can achieves a wide bandwidth from 2.9-11 GHz with the dual notched bands centred at 5.25 GHz and 5.8 GHz....

Simplicity, transmission rate, and bit error rate (BER) performance are three major concerns for ultra-wideband (UWB) systems. The main advantage of existing pulse-position modulation (PPM) schemes is simplicity, but their BER performance is poorer than that of an on-off-keying (OOK) modulation scheme, and their transmission rate is lower than that of an OOK scheme. In this research project, I ...

After the release of the unlicensed Ultra Wideband (UWB) spectrum 3.1 GHz to 10.6 GHz for the commercial purposes by the Federal Communications Commission (FCC), industries and academia pay much attention due to its properties of excellent immunity to multi-path interference, high secured data rate, low power consumption, and simple configuration. The feasible UWB antenna design face some chall...

Abstract Ultra wideband (UWB) communication technology is a that uses very short time scale to transmit information. It has the advantages of high transmission rate, low power consumption, and good privacy. In this paper, basic principle UWB briefly described, several common technologies are emphatically expounded, characteristics each their disadvantages compared. At same time, article focuses...

This article describes the construction of a dual-band planar monopole antenna. A microstrip patch antenna with feedline impedance 50 ohm and composed G-shaped inverted L-shaped strips is used to make suggested ultra wideband for frequencies ranging from 3.1 10.6 GHz. In order design antennas, we need know dimensions 40x40x1.6 mm3 thickness ground plane (0.035 mm) (5.2 GHz). There method alteri...