This paper proposes a micro-strip patch antenna operate on the dual frequency bands. The proposed antenna design consists of U slotted patch with direct coaxial probe feed technique. The U slotted patch offers a low profile, high gain, broad band and compact antenna. The proposed designs are based on patch loaded with U slots in the form of cut from the sides and center of the rectangular and c...

The enormous advancement in science and technology has led to increase in the requirements for high speed data transmission. The increase in the speed of the digital circuits as well as the density of printed circuit board will often result in more challenging signal integrity issues. One of the most important signal integrity issues is radiated emission. We analyzed the radiation in different ...

This paper presents a novel concept of half wavelength doubleridged half height rectangular waveguide resonator. The basic design consists of a double-ridged rectangular waveguide placed between two rectangular waveguide WR2300. The resonance frequency, bandwidth, Q factor etc. can be controlled by varying the ridge parameters such as ridge length, width, height, ridge gap width, ridge gap heig...

This paper describes the design of Rectangular Microstrip Patch Antenna with Triangular Slot (RMPATS) at a frequency of f = 2. 4 GHz. The proposed antenna has been designed by introducing a triangular slot in the rectangular patch. The FR4-Epoxy with relative permittivity 4. 4 and height 1. 6 mm is used as substrate material. Antenna is fed by coaxial probe feed. The proposed antenna have accep...

Passive UHF RFID tag consists of a microchip attached to an antenna. Proper impedance match between the antenna and the chip is crucial in RFID tag design. It directly influences RFID tag performance characteristics such as the read range. It is known that an RFID microchip is a nonlinear load whose complex impedance varies with the frequency and the input power. We investigate the effect of us...

In this paper, a dual frequency resonance antenna is analysed by introducing L-shaped slot in a semi circular patch, different parametric studies have allows and the results in terms of return loss and radiation pattern are given. It is observed that various antenna parameters are obtained as a function of frequency for different value of slot length and width; it is easy to adjust the upper an...

The tunable characteristics of RF MEMS (Microelectromechanical Systems) components enable their integration with antennas providing numerous advantages such as reconfigurability in polarization, frequency, and radiation pattern [1]. Furthermore, the monolithic fabrication of these components with antennas can reduce parasitic effects, losses and costs. This paper presents two tunable frequency ...

A radome has to be carefully designed to ensure it has minimum impact on the performance of the antenna. Traditional approaches involve equation approximations, complex ray tracing, iterative manufacturing process and or electrically large and lengthy Electromagnetic (EM) simulations. The novel approach described in this paper involves a 2D Ray Tracing Method (2DTRM) simulation in MATLAB and an...

A small 3-Dimensional (3-D) multi-band antenna of “F” shape is proposed for portable phones’ applications. The designed configuration of the proposed antenna is different from traditional Planar Inverted-F Antenna (PIFA) radiators. The proposed antenna has the good characteristics of wide band. The ratio of impedance bandwidth to the central frequencies 2.5 and 5.1GHz is 28.6% and 9%, respectiv...

Abstract— In this paper a high performance Bandpass micro strip filter is presented. The filter is designed using interdigital bandpass filter to improve the performance of Bandpass filter. The designed filter is based on 5th order chebyshev low pass prototype with .1 dB passband ripples. The filter operates with passband from 2GHz-4 GHz, produces a fractional bandwidth of 66%. The filter is de...