Results 51 to 60 of about 30,504 (243)

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

Jurnal 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, CHOIRINA RACHMA NUR OCTAVINA, LUTFI ROHMAN, ROHIM AMINULLAH FIRDAUS   +3 more
doaj   +1 more source

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

International 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, Yuanye Zhou, Qing Li, Boyang Chen, Ping Wen, Zhen Yu, Chenglong Feng, Yu Zhang, Jin Xu   +8 more
wiley   +1 more source

A Full-Band Digital Television Transmitting Antenna Array With Dual-Layer Bowtie Dipole Unit

IEEE Access, 2020
A full-band digital television (DTV) transmitting antenna array with dual-layer bowtie dipole unit is proposed in this paper. The dual-layer bowtie dipole is utilized as the antenna unit to broaden the frequency bandwidth, and its key parameters are ...
Haijing Yu, Shaojun Fang, Lingling Jiang, Hongmei Liu   +3 more
doaj   +1 more source

Estimation of dielectric constant for various standard materials using microstrip ring resonator [PDF]

, 2017
Microstrip ring resonator (MRR) is known for dielectric constant determination and many studies used Teflon as a standard sample. However, there are many other materials available which able to perform better or equivalence as the Teflon in calibrating ...
Abbas, Zulkifly, Esa, Fahmiruddin, Low, Pek Jin, You, Kok Yeow   +3 more
core   +1 more source

High‐Efficiency Millimeter‐Wave Scalable Rectenna Array With Individual Impedance Control

International Journal of Circuit Theory and Applications, Volume 53, Issue 11, Page 6143-6151, November 2025.
This study proposes a millimeter‐wave scalable rectenna array with individual fundamental and second harmonic impedance control for high‐efficiency wireless power transfer. The array integrates rectifiers, patch antennas, and a DC combining network, ensuring effective impedance matching and optimal power conversion while maintaining independent control
Yeonsoo Kim, Sooyoung Oh, Kyungbin Cho, Hojin Lee, Sun K. Hong, Juntaek Oh   +5 more
wiley   +1 more source

Defected Ground Structure (DGS) Based MIMO Antenna Array With Decent Isolation Characteristics for Satellite Communications in Unified S‐Band (USB)

Radio Science, Volume 60, Issue 11, November 2025.
Abstract This research focuses on developing an efficient, high‐isolation Multi‐Input Multi‐Output (MIMO) antenna array for Mobile Satellite Services (MSS). A portion of the S‐band (2–4 GHz) ranging from 2 to 2.2 GHz, known as Unified S‐Band (USB), is utilized for MSS, particularly for Space‐to‐Earth communications.
Avishek Chakraborty, Ravi Shankar Saxena, Indrasen Singh, Jatinder Kaur, Ramneet Kaur, Rishiv Kalia, D. Durga Bhavani   +6 more
wiley   +1 more source

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

Физика 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, S.B. Filippov, U.E. Shirmanov, A.S. Maltsev   +3 more
doaj  

Perancangan Antena Mikrostrip Segiempat Peripheral Slit untuk Aplikasi 2,4Ghz dengan Metode Pencatuan Proximity Coupled

Jurnal Nasional Teknik Elektro, 2018
Microstrip antenna is one of the fastest growing antennas in telecommunication system. Microstrip antenna has been widely used because it has many advantages such as a compact, practical and easy to adjusting polarize, commonly applied to modern ...
Rico Bernando Putra, Syah Alam, Indra Surjati   +2 more
doaj   +1 more source

Flexible Planar Monopole Built-in GIS PD Sensor Based on Meandering Technology

Sensors, 2022
To address the problem of low space utilization of existing rigid Ultra-High Frequency (UHF) sensors for partial discharge (PD) in Gas-Insulated Switchgears (GIS) and the problem of disrupting the electric field distribution inside the GIS.
Shuo Zhang, Guozhi Zhang, Changyue Lu, Hanlv Tian, Jianben Liu, Xiaoxing Zhang   +5 more
doaj   +1 more source

Solar Radio Wide‐Band Spectroscopy and Imaging Facilities of the Chinese Meridian Project Phase II

Space Weather, Volume 23, Issue 11, November 2025.
Abstract Solar eruptions, including flares and coronal mass ejections, are the most energetic phenomena in the solar system. These explosive events accelerate high‐energy particles and generate electromagnetic radiation from radio to gamma‐ray wavelengths, producing heliospheric disturbances and acting as primary drivers of space weather hazards.
Yihua Yan, Wei Wang, Linjie Chen, Jin Fan, Yao Chen, Shuwang Chang, Fabao Yan, Lihong Geng, Sha Li, Cang Su, Zhijun Chen, Chengming Tan, Bing Wang, Guang Lu, Chuanyang Li, Zhichao Zhou, Fei Liu, Suli Ma, Jun Cheng, Jing Du   +19 more
wiley   +1 more source