Results 21 to 30 of about 6,027 (173)

A Compact Wideband Microstrip Patch Antenna Using a Partial Ground Plane for 28 GHz mmWave Applications

open access: yesЖурнал нано- та електронної фізики
Millimeter-wave (mmWave) communication is a fundamental enabler for next-generation wireless systems due to its capability to support ultra-high data rates and massive network capacity.
Md. Tanvir Rahman Jim   +2 more
doaj   +1 more source

Rancang Bangun Antena Horn Planar Frekuensi 1 – 3 GHz untuk Ground Penetrating Radar

open access: yesJurnal Elkomika
ABSTRAK Antena horn planar merupakan antena yang menggunakan salah satu sisi antena horn berbentuk piramida dan beroperasi pada frekuensi diatas 1000 MHz.
LUCIA JAMBOLA   +2 more
doaj   +1 more source

Microstrip antenna design for use in 4G communication network systems

open access: yesTeknika
4G service coverage only reaches 52.90% of the total area in Indonesia, with an average internet speed of 11.12 Mbps which is one of the lowest internet speeds in Southeast Asia.
M. Reza Ramadhon   +2 more
doaj   +1 more source

A Novel High-Frequency Voltage Standing-Wave Ratio-Based Grounding Electrode Line Fault Supervision in Ultra-High Voltage DC Transmission Systems

open access: yesEnergies, 2017
In order to improve the fault monitoring performance of grounding electrode lines in ultra-high voltage DC (UHVDC) transmission systems, a novel fault monitoring approach based on the high-frequency voltage standing-wave ratio (VSWR) is proposed in this ...
Yufei Teng   +6 more
doaj   +1 more source

A 0.7 to 30 GHz Coplanar Vivaldi Antenna

open access: yesMicrowave and Optical Technology Letters, Volume 68, Issue 8, August 2026.
ABSTRACT In the literature there are multiple Vivaldi antenna designs that have a wide impedance bandwidth; however, the usable bandwidth is often limited by pattern degradation at the higher frequencies of the band. This paper presents the design and implementation of a coplanar Vivaldi antenna with a 42.9:1 usable bandwidth ratio (0.7–30 GHz).
Jessica Mundell   +3 more
wiley   +1 more source

VSWR Meter dengan Teknologi Mikrostrip [PDF]

open access: yes, 2016
VSWR meter dengan teknologi mikrostrip didesain memanfaatkan teknologi microstrip dan merupakan suatu alat ukur rasio gelombang berdiri (standing wave ratio/SWR).
Subagio, Budi Basuki
core  

Effects on VSWR with changing s parameter.

open access: yes, 2016
Effects on VSWR with changing s parameter.
Mohammed Nazmus Shakib (3589940)   +2 more
core   +1 more source

Gain improvement of the Yagi-Uda Antenna Using Genetic Algorithm for Application in DVB-T2 Television Signal Reception in Tanzania [PDF]

open access: yesJournal of Interdisciplinary Sciences, 2017
Region 2 UHF Frequency band is the frequency range which is used for transmitting Television signals in East Africa. Yagi-uda antenna is an array Antenna designed for various applications, in this paper a 5-element yagi-uda antenna is designed and ...
Twahir Kazema, Kisangiri Michael
doaj  

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, Volume 28, Issue 14, 22 July 2026.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

Measured and simulated VSWR of the proposed antenna.

open access: yes, 2016
Measured and simulated VSWR of the proposed antenna.
Mohammed Nazmus Shakib (3589940)   +2 more
core   +1 more source

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