Results 51 to 60 of about 13,537 (225)

Micro‐Fabricated THz Antenna for Short‐Range Wireless Communication

open access: yesInternational Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.
In the rapidly evolving field of terahertz (THz) communications, the design and fabrication of efficient antennas pose significant challenges due to the inherent complexities of operating at such high frequencies. This paper presents a microfabricated THz antenna array featuring triangular‐slot patches designed to enhance bandwidth, gain, and ...
Muhammad Zubair   +9 more
wiley   +1 more source

A method for analyzing the VSWR effects of paint on K-band onboard antenna arrays

open access: yesAIP Advances
Today’s aerial vehicles are fitted with antennas for various wireless services, which are commonly designed as conformal surfaces. To improve the appearance of the finished aircraft, the antenna surfaces are painted.
Xianjin Yi
doaj   +1 more source

Ultra-Wideband Dual-Polarized Antenna With Three Resonant Modes for 2G/3G/4G/5G Communication Systems

open access: yesIEEE Access, 2019
In this paper, a compact dual-polarized ultra-wideband dipole antenna is realized by exciting three resonant modes using double-loop (DL) dipoles with stepped exponential-shaped (ES) arms.
Yaohui Zhang   +4 more
doaj   +1 more source

Antenna Behaviour in the Presence of Human Body [PDF]

open access: yes, 2004
Mobile phones are widely used nowadays. The demand in the new generations of mobile phones is better performance. Typically the mobile phone performance is derived assuming an ideal antenna impedance of 50Ω.
Annema, Anne-Johan   +2 more
core   +1 more source

A new impedance matching method for an ultra-wide band and dual circularly polarised feed [PDF]

open access: yes, 2016
In traditional antenna design, metal components are not placed in the central part of the antenna as they change the characteristics of near field radiation.
Chen, Zhi Jun   +6 more
core   +1 more source

Exploiting Rössler Chaos for the Development of Advanced High‐Efficiency Broadband Microwave Absorbers in Modern Microwave Applications

open access: yesInternational Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.
This research explores the utilization of the Rössler chaotic attractor in designing a broadband electromagnetic absorber with superior performance across the 2–20‐GHz frequency range. The study commences with an in‐depth exploration of the parameters governing the Rössler chaotic system, culminating in the generation of intricate three‐dimensional ...
Mertcan Oral   +9 more
wiley   +1 more source

Method of the coordination of the antenna on two it is considerable the spaced apart frequencies

open access: yesФизика волновых процессов и радиотехнические системы, 2014
In article the method of the coordination of the antenna on two considerably spaced apart frequencies is considered. Edge conditions of usage of the given method are defined and examples of calculation of lengths of the matching transformer and idling ...
V.A. Neganov   +3 more
doaj  

Antena Mikrostrip Double E-Shaped dengan Frekuensi 3,3 GHz untuk Aplikasi WiMax

open access: yesJurnal Elkomika, 2022
ABSTRAK Antena mikrostrip double E-shaped untuk aplikasi WiMax melalui proses simulasi dan fabrikasi telah berhasil dirancang. Perancangan desain antena mikrostrip ini menggunakan bahan substrat FR-4 lossy dengan ketebalan 1,6 mm dan konstanta ...
MUTMAINNAH MUTMAINNAH   +3 more
doaj   +1 more source

High‐Performance and Space‐Qualified L‐Band to Ka‐Band Up‐Converter Based on Hybrid Local‐Oscillator Architecture

open access: yesInternational Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.
This paper proposes a high‐reliability design for a space‐qualified L‐Ka (band) up‐converter used in millimeter‐wave communication systems. The design addresses key challenges related to phase noise, image rejection, output power, and environmental adaptability.
Dingzhan Yu   +8 more
wiley   +1 more source

COMPACT AND EFFICIENT UWB ANTENNA FOR SMART VEHICLE COMMUNICATION SYSTEMS

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ
The most recent wireless technology is ultra-wideband (UWB), which makes use of a broad frequency range for efficient communication, fast data transmission, and precise position recognition.
Amjad Kadhum Majeed   +3 more
doaj   +1 more source

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