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Analiza numeryczna wpływu grubości dielektryka na wybrane parametry i charakterystyki zaprojektowanej anteny LTE

Łata K., Bugaj J.

Elektronika : konstrukcje, technologie, zastosowania

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2018

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Vol. 59, nr 8

15--20

PL

W artykule przedstawiono model dwuzakresowej anteny LTE pracującej na paśmie 1800 MHz oraz 2600 MHz oraz wyniki badań wpływu grubości dielektryka anteny na wybrane jego wybrane parametry. Zaprojektowana i zbudowana antena pracuje w pasmie częstotliwości 1,71-1,93 GHz dla technologii GSM 1800, GSM 1900 oraz 2,42-2,85 GHz dla technologii LTE 2500, LTE 2600. Używając modelu linii transmisyjnej otrzymano wstępne wymiary anteny, a następnie w środowisku programu CST Studio Suite za pomocą optymalizacji uzyskano zaprezentowane parametry [2, 3]. Parametry otrzymane przed oraz po zmianie grubości dielektryka zostały ze sobą porównane. Wykonana praktycznie antena została zbadana w Laboratorium Kompatybilności Elektromagnetycznej Wojskowej Akademii Technicznej.

EN

The article presents the model of a dual-band LTE antenna operating on the 1800 MHz and 2600 MHz band as well as the results of research on the influence of antenna dielectric thickness on selected parameters. The designed and constructed antenna works in the 1.71-1.93 GHz frequency band for GSM 1800, GSM 1900 and 2.42-2.85 GHz technologies for LTE 2500, LTE 2600 technology. The antenna dimensions have been developed by using the transmission line model, and in the next step, the presented parameters were obtained using optimisation using the CST Studio Suite environment, [2, 3]. The parameters obtained before and after the dielectric thickness change were compared with each other. The practically designed antenna was tested in the Electromagnetic Compatibility Laboratory of the Military University of Technology.

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Design and miniaturization of dual band implantable antennas

Hashemi S., Rashed-Mohassel J.

Biocybernetics and Biomedical Engineering

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2018

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Vol. 38, no. 4

868--876

EN

Two types of miniaturized dual band implantable antennas are designed and presented, one of a meander type and the other is the so called comb antenna. In medical applications the electromagnetic characteristic changes of tissue in different situations and the corresponding resonant frequency shifts, should not disturb the data transmission. The objective is to design dual band antennas in 400 MHz and 2.4 GHz with suitable bandwidths and small sizes. The meander type antenna was fabricated and its S parameters were measured using an equivalent liquid phantom of skin, fat and muscle which included propanol, butanol, purified water and salt. The experimental results are shown and compared.

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Design of Z-Shape Compact Antenna for Next Generation Wireless Network

Sahoo Swarnaprava, Mohanty Mihir Narayan, Mishra Rabindra Kumar

Annals of Computer Science and Information Systems

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2017

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Vol. 10

301--304

EN

The wireless communication technology is developing day by day so that various generations are taken birth. The fifth generation is considered as the next generation network and awaiting for implementation. Considering this scenario, compact antenna plays a vital role to make this dream to be realized. In this research work authors have taken a strive to design such required antenna where the bandwidth has been enhanced. The two different frequencies range covers up to fourth generation networks and beyond. Similarly, the bandwidth has been enhanced up to 75 MHz and 112.5 MHz which is approximately doubles the value of the current bandwidth. The antenna has to be pasted in the mobile circuit to maintain the data transfer in seamless mode. For suitability of the space Z-shape micro strip antenna has been developed. The result shows the achievement in terms of bandwidth, return loss, VSWR, directivity and gain. It is of C- band/ S-band satellite communication for application in wireless communication.

4

A new technique to design planar dipole antennas by using Bezier curve and Particle Swarm Optimization

Homsup N., Silabut W., Kesornpatumanum V., Boonek P., Kuhirun W.

Archives of Electrical Engineering

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2016

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Vol. 65, nr 3

513--525

EN

This research presents a new technique which includes the principle of a Bezier curve and Particle Swarm Optimization (PSO) together, in order to design the planar dipole antenna for the two different targets. This technique can improve the characteristics of the antennas by modifying copper textures on the antennas with a Bezier curve. However, the time to process an algorithm will be increased due to the expansion of the solution space in optimization process. So as to solve this problem, the suitable initial parameters need to be set. Therefore this research initialized parameters with reference antenna parameters (a reference antenna operates on 2.4 GHz for IEEE 802.11 b/g/n WLAN standards) which resulted in the proposed designs, rapidly converted into the goals. The goal of the first design is to reduce the size of the antenna. As a result, the first antenna is reduced in the substrate size from areas of 5850 mm2 to 2987 mm2 (48.93% approximately) and can also operates at 2.4 GHz (2.37 GHz to 2.51 GHz). The antenna with dual band application is presented in the second design. The second antenna is operated at 2.4 GHz (2.40 GHz to 2.49 GHz) and 5 GHz (5.10 GHz to 5.45 GHz) for IEEE 802.11 a/b/g/n WLAN standards.