On the 5G Communications: Fractal-Shaped Antennas for PPDR Applications
نویسندگان
چکیده
In this study, one method of using antennas based on fractals to cover few kinds public protection and disaster relief (PPDR) communications was presented. Dedicated antenna forms, necessary for design by 5G implementation, were enhanced suit the requirements specific applications. Employing fractal-shaped have allowed us accomplish all these actions, which request compact, conformal, broadband high performance devices. Antennas derived from Koch’s curve are studied. order implement PPDR in technology, frequency bandwidths importance been carefully selected properly included developments under MATLAB environment. Important information designers, such as 360 degrees directivity at various frequencies, impedance (resistance reactance) along bandwidth interest, well voltage standing wave ratio (VSWR) interest dipole, one-iteration, two-iteration curves, respectively, obtained. The characteristic frequencies is also highlighted. maximize parameters, study has successfully proposed fractal antennas, objects that use self-similarity property optimum operation several ranges. For studied we obtained following results regarding maximum gains dBi (which unit between compared gain an isotropic antenna). dipole 2.73 4.76 460 MHz 770 MHz, respectively. one-iteration Koch 6.91 4.51 finally, antenna, 4.91 3.28 Moreover, approximately Ohms 180 140
منابع مشابه
Fractal-Shaped Reconfigurable Antennas
With the tremendous advancements in wireless communications, there is an increasing demand for miniature, low-cost, easy-to-fabricate, multiband and wideband antennas for use in commercial communications systems. As a part of an effort to further enhance modern communications systems technology, researchers have been studying different approaches for creating novel and innovative antennas. The ...
متن کاملDesign of Triangular and Plus Shaped Fractal Antennas for Multi-Band Applications
Heavy changes have already taken place in the field of wireless communications in 21 century. Yet the demand for opulence and mitigated tautness is very much alive. An antenna with wider bandwidth, multiband operations and low profile characteristics is the cardinal root to all the modern day requirements. Fractal antenna fills this paucity with its unusual properties of self-similarity and mul...
متن کاملDesktop Shaped Broadband Microstrip Patch Antennas for Wireless Communications
This paper presents a comparative study of rectangular base desktop shaped broadband patch antenna (Antenna1) and triangular base desktop shaped broadband patch antenna (Antenna2). Apart from base dimensions all parameters of both antennas are constant. The broadband characteristics are achieved by introducing two parasitic ground planes and notches are etched on the radiating patch. Both anten...
متن کاملFractal Antennas: A Novel Miniaturization Technique for Wireless Communications
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...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Complexity
سال: 2021
ISSN: ['1099-0526', '1076-2787']
DOI: https://doi.org/10.1155/2021/9451730