Microstrip antenna has become more populer in the field of communication due to its verstality & uniqueness.The purpose of this paper is to design a low profile, conformal, small size antenna with high bandwidth along with good compromise in other factors like gain, directivity, efficiency etc. A E-shape patch antenna with suitable geometry is taken to provide good response of bandwidth about 5...

Wind profiling radars operating in Doppler beam swinging mode needs to have large antenna array in order to have a narrow beam for wind direction accuracy. To meet the above requirement, in the present work an array with 8 elements configured in an 8X1 is designed. The antenna inserted is a co-axial probe (Probe feed) to the patch near its resonance in ‘L’ band is carried out. Principal plane 2...

In this paper, Genetic Algorithms (GA) has been applied to calculate the optimized parameters of Elliptical Microstrip antenna. The fitness function has been developed in GA and the optimized dimensions of the antenna have been calculated. The output obtained is the optimized semimajor axis length ‘a’ from which the other parameters i.e. semi-minor axis length and odd mode frequency are calcula...

Received Mar 12, 2015 Revised Jun 12, 2015 Accepted Jul 22, 2015 In this paper a new geometry of patch antenna is proposed with improved bandwidth and circular polarization. The radiation performance of circularly polarized rectangular patch antenna is investigated by applying IE3D simulation software and its performance is compared with that of conventional rectangular patch antenna. Finite Gr...

In this paper, self-similar fractal antenna with electromagnetic band gap (EBG) is proposed and studied. Fractal geometry is a methodology through which size reduction is achieved. Plus shaped fractal antennas with base, first and second iteration of order 1/3 are surrounded with Hexagonal square slotted EBG structures. This is designed on substrate with r=4.4 & h=1.6mm. The designed antenna r...

This paper presents design and implementation of Linear antenna array of size 1x4.The elemental base shape antenna utilizes rectangular aperture in the intermediate grounded plane :sandwiched in between two layer of dielectrics, to achieve higher gain, highly directional beam and also to counteract the effect of fading while signal propagates through various corrupted environments. . It is demo...

A Compact planar slot antenna is proposed and developed for Ultra Wideband Applications. The antenna has compact size of 28 x 31 x 0.8 mm 3 . The antenna is fabricated with FR4 substrate and it is fed by Coplanar Wave Guide. The antenna is investigated experimentally to obtain required return loss, gain and radiation pattern characteristics. The antenna operates over a band between 3.1 GHz and ...

In this age of wireless communication, micro strip antennas have drawn maximum attention of antenna community because of its compact size, light weight and low profile configuration. In this paper the problem of locating feed point of an inset fed microstrip patch antenna designed for wireless communication is dealt with. The optimization is done using three techniques: Genetic Optimization (GA...

—In recent years many studies are concentrated on multiband micro strip antenna structures for important purposes in wireless communication systems, medical imaging, and radar sensor resolution. In this paper, we printed a square radiator patch on FR4 substrate material. The relative dielectric constant was 4.4, and the thickness of the substrate material was 1.6 mm. The patch was fed by a tran...

A compact microstrip bandpass filter using miniaturized hairpin resonators is presented in this letter. Two modified stepped impedance hairpin resonators connected by parallel coupling are designed for the bandpass filter. The proposed miniaturized hairpin resonator is composed of a microstrip line and rectangular ring structures between parallel high impedance lines. A big capacitance in the h...