Abstract – A Novel Co-Planar Wide Band Slot Antenna is proposed in this paper. In this paper a new design technique for enhancing bandwidth that improves the performance of a conventional microstrip patch antenna is proposed. This proposed antenna has been excited by probe feed technique. On a thin FR –4 lossy substrate this antenna achieves 1.87 GHz impedance bandwidth in the range of 2.24 4.1...

This article presents the design of a miniaturized microstrip antenna for microwave medical imaging applications. We propose a miniature rectangular printed antenna that meets the UWB characteristics in terms of bandwidth and reflection coefficient. This antenna is designed for a system to detect malignant tumors by microwave imaging. We use certain techniques of miniaturization and expansion o...

This paper describes an easily manufactured, reducedsize, active receiving antenna for automotive applications, which increases short-range wireless detection in the 315-MHz band. This compact antenna has an advantage over currently available antennas because can be hidden in a vehicle’s interior. The active antenna consists of a low-noise amplifier coupled to a low-profile planer meanderline p...

Band-notch characteristic has been of great interest recently to overcome the electromagnetic interference of Ultra-wideband systems (UWB) with other existing ones. In this paper, we present a novel microstrip-fed antenna with band rejection property appropriate for UWB applications. Band-notch characteristic has been achieved by adding a rectangular resonant element to the ground section. A pr...

The design of a novel volcano smoke antenna for UWB indoor applications is presented. The design method is based on a general description for the geometry of UWB monopole antennas which is capable of producing most possible shapes for these antennas. It is also compatible with different optimization methods. In addition to a volcano smoke antenna, this method is used to design two optimized mon...

A decrease in physical size and multiband ability are essential requirements for antenna incoming wireless devices.The antenna based on Sierpinski fractal antenna theory. Design & simulation of fractal triangle microstrip patch antenna done by using IE3D software of Zeland. In this paper, a special technique is proposed to design a new patch antenna, shapes is equilateral triangular fed by a 50...

It is very common that when a broadcaster needs to install an FM transmitting antenna within a large metropolitan area he places it on the tallest structure or building available. When the rooftop is already occupied by a large number of other types of transmitting and receiving antennas, the panel dipole antenna should be chosen. This antenna is secured to the side walls of the upper floors wi...

Antenna pattern control techniques for mobile terminals such as adaptive array antenna are expected to improve the characteristic of high-speed radio communications. The drawbacks of adaptive antenna based on DBF (Digital Beam Forming) are the requirement of the same number of RF receivers and A/D (analog-to-digital) converters as the number of array elements, since digital signal processing ha...

This paper represents a numerical simulation of connected Eshape and U-shape for WLAN application. In this paper, dual operation E-shape and U-shape Patch Antenna is fed by transmission line. The objective in this design is to obtain the enhancement in bandwidth (BW) for WLAN applications over the frequency band (2 to 6 GHz).The proposed antenna is designed on two-layer, one FR4 substrate and a...

This paper presents a study on bow tie antenna with U-shape slot, designated for the Wireless applications. It is designed to work on a thick substrate (h = 1.6mm) with a high dielectric constant ( = 4.4) operating at three frequencies (2.4, 4 and 5GHz). Two U-shaped slots are introduced in the both sides of bow tie antenna in order to achieve a very low return loss at these frequencies. The an...