Zobrazeno 1 - 10
of 332
pro vyhledávání: '"mobile antenna"'
Publikováno v:
Electromagnetic Science, Vol 2, Iss 2, Pp 1-36 (2024)
Due to limited antenna space, high communication requirements, and strict regulatory constraints, the design of antennas for modern mobile phones has become an exceedingly challenging task. In recent years, numerous studies have been conducted in thi
Externí odkaz:
https://doaj.org/article/696bd791fe494e3bb6fe25996f2aaa81
Publikováno v:
Wasit Journal of Computer and Mathematics Science, Vol 2, Iss 1 (2023)
Health and safety concerns have grown in recent years due to the increasing frequency bands and the demand for wireless communication apparatus. Electromagnetic (EM) radiation breakthrough from Radio frequency (RF) into the human head is an issue tha
Externí odkaz:
https://doaj.org/article/cf98601b3e3d44aaad6af50b060d8f4d
Publikováno v:
IEEE Access, Vol 10, Pp 112250-112260 (2022)
In this paper, a reconfigurable metal rim antenna with a small clearance and compact structure for 4G/5G smartphones is proposed. It consists of the system ground plane and a metal rim with two slits, in which a U-shaped slot of 1 mm (the smallest) c
Externí odkaz:
https://doaj.org/article/e13f1a0d50914fd98b692929c8955002
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 1154-1160 (2022)
A novel antenna design with a low specific absorption rate (SAR) is introduced. The antenna has a very low profile and it is designed to be placed on the back cover of a mobile device at around 2 GHz. The solution is based on nested loops which distr
Externí odkaz:
https://doaj.org/article/18408e1b68d54a968844e03361985bb1
Akademický článek
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Akademický článek
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Autor:
D. A. Kovalevich
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 19, Iss 3, Pp 31-39 (2021)
This work is devoted to the study of automatic antenna tuning units of the short-wave range. Devices of narrowband matching based on discrete sets of reactive elements are considered. A classification of the most frequently used automatic matching me
Externí odkaz:
https://doaj.org/article/cf1278ce5a6040daa1228635281b7549
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 911-920 (2021)
In recent years, the screen-to-body ratio of mobile handsets has been increasing. Today, the screen nearly fills up the entire front side. Conventionally, the screen is mainly seen as a metallic object that adversely affects antenna performance. In t
Externí odkaz:
https://doaj.org/article/2333e420d18648559b48bac4e834009d
Publikováno v:
IEEE Access, Vol 8, Pp 73151-73163 (2020)
In this paper, 4 × 4/8 × 8/10 × 10 multiple input multiple output (MIMO) antenna systems composed of co-located self-neutralized antenna pairs are proposed to operate at 4.8-5.0 GHz (part of N77 band) for the fifth-generation (5G) communication ap
Externí odkaz:
https://doaj.org/article/677c4c768c014c6393466d43297e6a3c
Akademický článek
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