Results 31 to 40 of about 6,027 (173)

VSWR result when both S1 and S2 are at ON position.

, 2022
VSWR result when both S1 and S2 are at ON position.
Farid Zubir (11965951), Muhammad Irfan Khattak (11603973), Muhammad Kamran Shereen (11965948), Abdul Basit (174463)   +3 more
core   +1 more source

PENGARUH BAHAN DIELEKTRIK DALAM UNJUK KERJA WAVEGUIDE

JIF (Jurnal Ilmu Fisika), 2012
Makalah ini menyajikan hasil studi pengukuran nilai Voltage Standing Wave Ratio (VSWR) dan power reflection factor (PRF) untuk berbagai jenis bahan dielektrik yang akan disisipkan pada saluran transmisi yang beroperasi di frekuensi 9 GH dan dibandingkan ...
Lince Markis
doaj   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, Volume 11, Issue 13, 8 July 2026.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Design, Fabrication, and Experimental Evaluation of a 435 MHz Helical Antenna for 433 MHz IoT Modules

Jurnal Elektronika dan Telekomunikasi
The rapid growth of wireless communication demands within Internet of Things (IoT) applications requires antennas that exhibit high efficiency, compact dimensions, and reliable performance in the UHF band.
Rusfa Rusfa, Rozeff Pramana, Bavitra Bavitra, Ferly Oktavia, M. Hasbi Sidqi Alajuri, Andreas M Simannulang   +5 more
doaj   +1 more source

A Printed Wide‐Slot Antenna With Modified Tuning Stub and Parasitic Elements for Glucose Sensing Applications

Engineering Reports, Volume 8, Issue 7, July 2026.
A compact printed wide‐slot antenna with a diamond‐shaped tuning stub and parasitic elements achieves an ultrawide impedance bandwidth of 256% (2.4–16.2 GHz). Its capacitive nature enables frequency shifts with dielectric variations, making it highly suitable for accurate, non‐invasive glucose sensing applications.
A. K. Arya, Rao Shahid Aziz, Ali M. Almuhlafi, Hamsakutty Vettikalladi, Zhenzhen Jiang, Arjun Kumar, Vipin Balyan, Gunjan Gupta   +7 more
wiley   +1 more source

Voltage Standing Wave Ratio (VSWR): Simulation versus Measurement.

, 2017
Voltage Standing Wave Ratio (VSWR): Simulation versus Measurement.
M. M. Shafiei (3692500), Wan Nor Liza Wan Mahadi (3692503), Mahmoud Moghavvemi (681154)   +2 more
core   +1 more source

Large Cation‐Induced Lattice Distortion in Carbon‐Based High‐Entropy Oxides: Spin‐State Engineering and Broadband Microwave Absorption

Rare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT High‐entropy oxides (HEOs) are promising for microwave absorption but suffer from a trade‐off between impedance matching and attenuation, often requiring high filling ratios (> 50 wt%). Herein, we propose a “lattice‐spin” dual‐regulation strategy by introducing giant‐radius Bi into a single‐phase HEO solid solution.
Junwei Zhang, Yuxin Guo, Shengyuan Li, Yifei Wang, Kenan Zhang, Changrui Cao, Shixuan Zeng, Ziqi Yang, Yazhuo Zhang, Yongpeng Zhao, Gaihua He, Peng Liu   +11 more
wiley   +1 more source

Desain dan Implementasi Rectenna Hexagonal Patch Array Pada Frekuensi 2,4 GHz

Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2018
Abstrak– Penelitian rectenna yang dilakukan terdiri atas dua bagian yaitu antena yang berbentuk hexagonal array dan rectifier. Rectenna hexagonal array ini didesain agar bisa menangkap gelombang radio (RF) pada frekuensi 2,4 GHz yang dapat ...
Herma Nugroho rono adi Kusumo, Sholeh Hadi Pramono, Erni Yudaningtyas   +2 more
doaj   +1 more source

Ionospheric Characterization Over Iran Using Multi‐Frequency IMB HF Transmitters and Global WSPRNET Reception During the 12 November 2025 Geomagnetic Storm

Space Weather, Volume 24, Issue 6, June 2026.
Abstract The Ionospheric Monitoring Beacon network in Iran provides continuous, multi‐frequency high‐frequency (HF) transmissions using WSPRNET modulation, enabling global reception and near–real‐time monitoring of ionospheric propagation conditions.
A. Mahmoudian, Saba Hafizi Lotfabadi, Mohammad Azimi   +2 more
wiley   +1 more source

Transmission coefficient estimation based on antenna voltage standing wave ratio under plasma sheath

AIP Advances, 2018
Radio blackout has confused the aerospace industry for decades. The highly attenuated caused by the plasma sheath is the main cause of radio blackout. The transmission coefficient depends on the relationship between plasma density, collision frequency ...
Min Yang, Xiaoping Li, Bowen Bai, Ze Li, Bosheng Xue   +4 more
doaj   +1 more source