A new ultawideband circular fractal antenna with notched-band characteristics is presented. A notched-band characteristic is achieved by employing a U-shape slot in 50 Ω feed lines. The ultra-wideband impedance matching and compact size have been obtained by using CPW-feed technique and the fractal concept. The measured result of proposed fractal antenna exhibits the ultra wideband characterist...

This master thesis has focused on the aspect of UWB antenna design for the impulse based UWB radar which is built on CMOS technology. The design of new UWB antenna faces some challenges. The antenna should be compact, preferably conformal, low cost for manufacture, and have good electrical performance, such as good matching, directional radiation performance over a wide band, good time response...

This work presents the design of a wideband circular tightly coupled array for omnidirectional pattern generation. The proposed works over an 8:1 bandwidth, providing very high performance in terms active reflection coefficient, realized gain, and patterns with reduced ripples. is composed 32 low-profile, self-complementary, bow-tie elements displaced around metallic mast. capacitive coupling b...

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...

The purpose of this paper is to introduce the concept of fractals and its use in antenna arrays for obtaining multiband property. One type of fractals namely, Cantor set is investigated. Cantor set is used in linear array antenna design. Therefore, this array know fractal Cantor linear array antenna. A comparison with conventional non-fractal linear array antenna is made regarding the beamwidth...

In this paper, sierpinski carpet fractal shape antenna for RFID applications is proposed. The proposed antenna has been designed with scaling factor of one-fourth with the aim of reducing antenna size and improved performance parameters. Fractal shaped has been developed to improve the characteristics and to miniaturize the size of proposed antenna. Usually, an antenna works at one or two frequ...

Fractal antenna can meet the requirements of designing a multiband, low profile and small antenna. With advancement in wireless technology over the past decade, there is an increasing demand for miniaturization, cost effective, multiband and wideband antennas. Fractal antenna designs can support in meeting these requirements. Fractal antenna design is a geometric pattern that is repeated at eve...