The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The aim of this paper is to design a micro strip antennas suitable for Wi-Max based application centered at 5.8 GHz. The antenna must operate within the unlicensed 5.8 GHz band. This band is currently being used for the IEEE 802.11c standard and other industrial, medical and scientific applications. A equilateral triangular micro strip antenna designed with slits, achieved 14.5 percent bandwidth and...
A rotating fluid frame Antenna consisting of conducting fluid (saline water) is radiating under controlled electric field and magnetic field conditions. Water molecules oscillate due to impact ionization inside the fluid and contribute to radiate energy. Resonant frequency depends on volume, type of fluid, shape of tube, chemical properties of fluid used, DC magnetic bias and electric bias conditions...
Dielectric tube wave guide filled with plasma is an open wave guide structure that belongs to the class of surface wave propagation. In this paper, analytical theory of dielectric tube wave guide filled with plasma has been formulated and dispersion relation is numerically investigated for the guided mode propagation. This structure is analyzed for lower order hybrid modes with an aim to increase...
In this paper, a band-notched planar Ultra wideband (UWB) patch antenna with integrated band pass filter for UWB systems is presented. It is designed on a dielectric substrate and fed by a 50 ⦠micro strip line, antenna consists of a square slot patch with a vertical coupling strip monopole, and a partial ground plane and feeding line with band pass filter has been demonstrated to provide an ultra...
Present era of wireless communication thrust the need of miniaturization and multi-frequency operations to make the devices compact and affordable. To overcome the challenges of multi-frequency operation, in this paper a revised design is proposed for dual band micro strip antenna printed on RT-duroid substrate which can operate in two frequency bands with a single structure. To make the antenna compact...
The present paper deals with the designing and simulation of electron gun, collector and electromagnet for 250kW CW, 5GHz klystron. The assembled structure named as Gun collector test module (GCTM) is also designed to validate the gun perveance and thermal design of collector. The electron beam optics is designed in TRAK 1D code and MAGIC2D code. Based on the above simulation, the engineering drawing...
In this paper, a novel frequency reconfigurable antenna design and development is proposed for wireless devices. In the proposed design, a rectangular patch antenna with square slot using two PIN diodes at the centre frequency 10 GHz was designed and simulated frequency reconfiguration is achieved in the frequency range of 10-10.5 GHz and the measured results shows the same effect in the frequency...
In this paper, bandwidth of micro strip antenna is increased by introducing a slot of W shape and using stacked configuration. The proposed W slot MSA is suitable for high speed WLANs applications. By using different approach of bandwidth enhancement such as stacked configuration, cutting slot and changing the position of the coaxial probe bandwidth equal to 25.78% is achieved. The antenna is fed...
In this paper a rectangular micro strip patch antenna along with a metamaterial structure is proposed at a height of 3.2mm from the ground plane, which consists of a Double F Shaped Resonator (DFR) with Horizontal Rectangular Strips. This work is mainly focused on increasing the bandwidth of low profile micro strip patch antennas. The patch antenna along with the proposed metamaterial structure is...
A narrow band micro strip patch antenna with "Pentagonal Rings" shaped metamaterial cover is proposed and analyzed at a height of 3.2mm from the ground plane. The antenna along with the proposed metamaterial cover is designed to resonate at 2.31GHz frequency (in S-Band). Proposed metamaterial cover significantly reduces the return loss and increases the directivity of the antenna in comparison...
A rectangular micro strip patch antenna has been investigated and its performance has been analyzed with the aid of An soft HFSS. An additional rectangular conductive plate of comparable dimensions was placed above the patch in order to enhance the bandwidth. The package was used to analyse the effect of the top patch, in particular the variation of VSWR with two parameters, namely the distance between...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.