A broadband MEMS steerable antenna is fabricated on a silicon substrate using bulk micromachining techniques. The MEMS platform utilizes torsion hinges and is capable of rotation around two axes for full beam steering capabilities. The antenna was designed using the Ansoft High Frequency Structure Simulator (HFSS) package and operates between 10-16 GHz with a coplanar feedline routed across the...

A Coplanar Waveguide Fed ultra wide band (UWB) slotted Hexagonal patch antenna which finds application in wireless communication is presented here. It was designed to operate in the UWB range ( 3.1GHz to 10.60GHz). The antenna presented here is designed on FR4 substrate with loss tangent δ=0.0025 and dielectric constant 4.4. The dimension of the proposed antenna is 34 X 29 X 1.6 mm. The fundame...

Combining the antenna miniaturization and bandwidth preservation could increase the challenges of integrating the smaller, thinner, low profile, high efficient antennas into equipment for different applications. In this paper, a novel Microstrip Patch Antenna with reduced size for WLAN application is proposed. Introducing in-plane Split Ring Resonators (SRRs) in the vicinity of the patch, and f...

In this paper, fractal FSS has been designed using recursive technology and this frequency selective surface (FSS) acts like a multi band-reject filter. The proposed design has been investigated theoretically using Ansoft Designer® software in which the reflection and transmission band has been predicted by the method known as Method of Moment. In comparison to the reference square patched Freq...

the design of microstrip antenna for improved bandwidth and directive gain is a challenge for researchers. This paper proposes the design of a Microstrip Square-Patch antenna with enhanced Bandwidth and Directive Gain. The design and simulation of this antenna has been done with the help of Ansoft HFSS. The simulated results give significant improvement in terms of directive gain and bandwidth....

How to design a broad bandpass filter in the X-frequency range? The design procedure is developed from synthesis to electromagnetic simulation. The filter to be designed is implemented in waveguide technology with inductive irises coupling sections. So as to evaluate equivalent susceptance of iris aperture, two methods were used: the first one is based on classical mode matching techniques, whe...

This paper describes the comparision of a microstrip-fed monopole ultra wideband antenna with and without notch. In case of notch the notch-band characteristics is achieved by Cshaped ring resonator. The paper gives better understanding of antenna parameters such as return loss, VSWR etc., and its variation in performance of antennawith and without notch. Also presents the effect of parameters ...

In this paper, we analyze the electromagnetic response of a metamaterial slab in the case of normal incidence using the point-dipole interaction model and an expansion of polarization by eigenmodes. The problem is simplified by assuming that the lattice dimensions are smaller than a half wavelength and invoking the nearest neighbor approximation. In this manner, we find the structure supports t...

Whip type antennas are probably the most commonly used antennas in portable RF systems, such as cordless and cellular phones, RF enabled laptop computers, , and handheld computers. Whip antennas are almost always mounted on the chassis which contains the radio and other electronics. Normally in mobile phone two set of antenna used for receiving different application such as GSM and GPS. In this...

This paper deals with single layer Frequency selective surface (FSS) which acts as a double band reject filter. The two stop bands are really broad with percentage bandwidth of 26.67% and 14.53%. The maximum and minimum band separation for this proposed design is around 45 dB and frequency ratio is more than 1.9.This results are almost same for different incident angles.. This design is investi...