Results 31 to 40 of about 769 (130)

Analytical Model for Predesigning Probe‐Fed Hybrid Microstrip Antennas

open access: yesInternational Journal of Antennas and Propagation, Volume 2018, Issue 1, 2018., 2018
Based on the equivalent resonant cavity model, an effective analysis methodology of probe‐fed hybrid microstrip antennas is carried out in this paper, resulting in a better understanding of the parameter interrelations affecting their behavior. With that, a new design criterion focused on establishing uniform radiation patterns with balanced 3 dB ...
Nilson R. Rabelo   +7 more
wiley   +1 more source

Perancangan Antena Mikrostrip Circular Patch dengan Inset-Feed dan Array pada Frekuensi 3.5 GHz untuk Sistem Komunikasi 5G

open access: yesTechne, 2023
Penelitian ini mengusulkan rancangan suatu antena yang bekerja pada frekuensi 3.5 GHz yang digunakan untuk sistem komunikasi generasi kelima. Antena dirancang dengan substrat Duroid RO5880 yang memiliki spesifikasi konstanta dielektrik = 2.2, ketebalan ...
Agam Yudi Putranto   +5 more
doaj   +1 more source

Analysis and Design of Cavity‐Backed Probe‐Fed Hybrid Microstrip Antennas on FR4 Substrate

open access: yesInternational Journal of Antennas and Propagation, Volume 2015, Issue 1, 2015., 2015
A novel cavity‐backed probe‐fed linearly polarized microstrip antenna based on the concept of hybrid radiators is proposed and implemented. The resulting flush‐mounted antenna exhibits symmetrical bandwidth, low cross‐polarization radiation in the H‐plane, due to its hybrid patch, and low cost, since it can be built on a FR4 laminate.
D. C. Nascimento   +4 more
wiley   +1 more source

Unjuk Kerja Antena UWB Egg Berdasarkan Dimensinya

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2012
Televisi-televisi swasta di Indonesia bekerja menggunakan frekuensi yang berbeda-beda. Dilakukan analisa menggunakan antena UWB dengan bentuk egg terhadap berbagai macam dimensi untuk mengetahui kemampuan antena dalam menangkap frekuensi televisi ...
Rudy Yuwono
doaj   +1 more source

Functional Diversity and Community Composition of Soil Fungi Associated With Canopy Dieback in Araucaria araucana Forests of Contrasting Edaphic Conditions

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Soil fungal communities associated with Araucaria araucana differ primarily according to site edaphic conditions rather than tree health status. Restrictive, nutrient‐poor soils are linked to higher canopy dieback and distinct functional community shifts, with symptomatic trees harbouring stress‐tolerant taxa and asymptomatic trees supporting ...
Valeria Arriagada   +4 more
wiley   +1 more source

Monitoring Accessibility Services in Digital Television

open access: yesInternational Journal of Digital Multimedia Broadcasting, Volume 2012, Issue 1, 2012., 2012
This paper addresses methodology and tools applied to the monitoring of accessibility services in digital television at a time when the principles of accessibility and design are being considered in all new audiovisual media communication services. The main objective of this research is to measure the quality and quantity of existing accessibility ...
Francisco Utray   +4 more
wiley   +1 more source

Attitudes to Nigerian Englishes in higher education

open access: yesWorld Englishes, Volume 45, Issue 1, Page 144-162, March 2026.
Abstract Although there is a bourgeoning of studies on attitudes towards Nigerian Englishes, there is limited research on the effects of participants’ discipline (STEM and non‐STEM) and the type of secondary school (private and government) they attended in evaluating Nigerian Englishes.
Sopuruchi Christian Aboh
wiley   +1 more source

ALUMUNIUM BAHAN ANTENA UNTUK OPTIMASI TRANSMISI GELOMBANG RADIO

open access: yesSimetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2016
Antena merupakan instrumen pada elektronika telekomunikasi yang sangat berguna pada pentransmisian gelombang suara baik gelombang audio maupun radio.
Roni Kartika Pramuyanti
doaj   +1 more source

Calvatomina antena Nguy

open access: yes, 2022
Published as part of Nguyen, Anh T. T., Thuy, Kim N. & Arbea, Javier I., 2022, Catalogue of Vietnamese springtails (Hexapoda, Collembola), pp.
Nguyen, Anh T. T.   +2 more
openaire   +2 more sources

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