In this paper, a planar monopole antenna is introduced, also we added some new Nano fillers such as Fumed Silica and Aluminum Oxide to RT Duriod5880 and RO3003 to produce new Nano composite materials, then new Nano composite materials are used as a substrate of a ultra-wideband monopole antenna. Antenna characteristics are considered to illustrate that, by using these Nano composite materials, ...

A novel dual-wire antenna to obtain wideband circular polarisation is proposed. The consists of curl elements with a balanced feed above ground plane. Using the moment method, an feedlines having two sources analysed first. Analysis reveals that shows 3 dB axial-ratio bandwidth 36%. Next, quasi-balanced one source simplify system investigated. It found both numerically and experimentally remain...

this paper presents an e-ring shaped printed monopole antenna for uwb applications with dual notched bands performance. in order to generate single frequency band notch function, we applied a u-ring shaped monopole antenna, and by inserting a rectangular ring in the centre of it an e-ring shaped radiating patch created and a dual band-notch function can be achieved. the measured bandwidth of th...

We report an enhanced broadband passive combiner structure using a dense slot-line antenna array in an oversized coaxial waveguide. A significant reduction in size has been achieved while maintaining a 6-18GHz bandwidth and capacity for 32 MMIC amplifiers. A broadband slotline to microstrip line transition is also developed and monolithically integrated with the slot-line antennas, to eliminate...

Guy wires are a powerful mechanical tool used widely in all industries. Most of the applications employed supporting tall structures such as antenna, communication towers, transmission lines, electric poles, and erecting flare stacks on an oil gas platform or plant. Severe wind events tornadoes primary failurein transmitting line structure many places worldwide. So, this research aims to invest...

Many types of antennas can be used for digital TV receivers; in this article we try to design a double biquad antenna. This is due simple form, easy make, wide beamwidth. In designing receiver the Malang area, an STB device needed, so that analog still receive broadcasts. study, antenna made copper wire, each side length: ¼ ? , with working frequency: 650 MHz. order match impedance 75? coaxial ...

in this paper, a resonant slotted waveguide array antenna with circular boundary has been designed and simulated for mono-pulse airborne radar applications. the antenna parameters are:11% bandwidth in x-band (8.6-9.6ghz),vswr < 2, 38dbi directivity, sidelobes level of - 20db and 3-db beam-widths of 2.1degree. to design this antenna, it is divided into short sections (sub-arrays) each with a uni...