نتایج جستجو برای: antenna miniaturization

تعداد نتایج: 48542  

2009
Kulbir Singh Vinit Grewal Rajiv Saxena

Wireless applications, particularly with multiple resonances, put new demands on antennas pertaining to size, gain, efficiency, bandwidth, and more. One promising approach in this regard is to use fractal geometries to find the best distribution of currents within a volume to meet a particular design goal. In the miniaturization of wire antennas it has been found that the electromagnetic coupli...

2011
Mohammed M. Y. Yousef AbdElaziz A. AbdElaziz Mohamad Kamal A. Rahim Mohammed Y. M. Yousef Kim Fung Man Wing Shing Chan M. Ben Ahmed

w w w . i j e c t . o r g 204 InternatIonal Journal of electronIcs & communIcatIon technology Abstract This paper describes a polygon slot Microstrip antenna design for next generation wireless system. The triple-band operation is obtained by embedding asymmetrical pairs of polygon shaped slots. With the continuous growth of wireless communication service and the constant miniaturization of com...

2010
Ghanshyam Singh

In this paper, I have explored a significant concept for the miniaturization of microstrip patch antenna configuration by using the double negative (DNG) left-handed Metamaterials, which have dielectric permittivity and magnetic permeability both negative, simultaneously. It is achieved through the concept of phase-compensation by thin slab consist of the double positive (DPS) material, which h...

2004
Amir I. Zaghloul Steven Weiss Ozlem Kilic

Active antennas have been in use in communications satellites for decades. The antenna configurations include array-fed reflectors, multiple-beam lenses and direct radiating phased arrays. The active feedings of the antennas include single amplifier per radiating element and matrix power amplifiers shared between clusters of radiating elements. This paper reviews the combinations of antenna con...

2012
Richard W. Ziolkowski Ning Zhu Ming-Chun Tang

Many attributes of metamaterials have led to the consideration of engineering metamaterialinspired structures for a variety of applications. This includes the miniaturization of resonators and their use for improving the performance characteristics of electrically small antennas from the microwave region up through to the optical region. Achieving higher directivity from electrically small ante...

2003
Samuli Visuri Dirk T.M. Slock

The research we report on in this paper is motivated by the drive towards antenna array miniaturization: going from an array of identical antennas that get spread out in space towards an array of colocalized antennas with differing responses. We address the problem of designing the colocated antenna array response for two applications: diversity reception using maximum ratio combining and MIMO ...

Journal: :International journal of electrical and computer engineering systems 2023

A new circular patch antenna with a novel metamaterial structure that achieves high bandwidth and positive gain across the operating band. The proposed was Designed by incorporating three split ring resonators into fabricating it 15 ×10 ×1.6 mm3. use of negative permittivity permeability reduced mutual coupling in wideband antenna. designed shows isotropic nature at 9.71 GHz band from 8.80 to 1...

Journal: :IEICE Electronics Express 2022

This paper presents a miniaturized broadband monopole AOC (antenna on chip) for W-band. The miniaturization is achieved by hexagonal grid at the top layer M6 and capacitive AMC (artificial magnetic conductor) bottom M1 based 130nm CMOS process. First, reflection phase of different modes analyzed using electromagnetics simulation. Secondly, axial size with further reduced 16.2% (compared to stra...

Journal: :JITE (Journal of Informatics and Telecommunication Engineering) 2022

Along with the times, communication technology has developed so that it is currently included in Fifth Generation (5G) Communication System. The 5G system divided into three frequency categories, namely low band, middle band and high band. One of important devices telecommunications sector antenna. Antenna serves to send receive electromagnetic signals at a certain working frequency. Currently,...

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