Results 31 to 40 of about 1,919 (189)

A Compact Negative Group Delay Microstrip Diplexer with Low Losses for 5G Applications

open access: yesARO-The Scientific Journal of Koya University, 2023
Microstrip Diplexers play an important role in modern wireless communication systems. In this paper, a novel compact microstrip diplexer based on spiral cells is presented.
Leila Nouri   +4 more
doaj   +1 more source

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

open access: yesFlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu   +3 more
wiley   +1 more source

Conformal and Multi‐Domain Radio Frequency Energy Harvesting System Based on Graphene for Internet of Things Applications

open access: yesInterdisciplinary Materials, EarlyView.
This study details a multi‐domain graphene assembled film (GAF) based radio frequency (RF) energy harvesting system (GEHS) for Internet of Things (IoT) applications. The GEHS integrates a flexible dual‐band, dual‐polarization, dual‐beam antenna array based on GAF materials with a high‐efficiency rectifier.
Yitong Xin   +12 more
wiley   +1 more source

From nature to nanoscale: advances, challenges, and preclinical translation of nanofiber drug delivery systems containing plant‐derived active ingredients

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Since the early 1960s, nanotechnology has been a critical area of science, allowing for the development of sophisticated nanomaterials. Nanofibers, one of the most widely used nanotechnological drug delivery systems, have emerged as a highly versatile platform within modern pharmaceutical sciences.
Heybet Kerem Polat   +7 more
wiley   +1 more source

Microstrip-line resonator with broadband, circularly polarized, uniform microwave field for nitrogen vacancy center ensembles in diamond

open access: yesAIP Advances, 2019
We proposed an annular microstrip-line resonator (AMLR) to provide a broadband, circularly polarized and uniform microwave field for state manipulation of negatively charged nitrogen-vacancy (NV–) center ensembles in order to achieve wide magnetic field ...
Xiaoying Yang   +5 more
doaj   +1 more source

Design and Simulation of Microstrip Bandpass Filter with Regular Slots [PDF]

open access: yesEngineering and Technology Journal, 2017
This paper presents new microstrip slotted patch resonator bandpass filter with two transmission zeros of output frequency response around design frequency.
D.A. Hammood
doaj   +1 more source

Radiowave technology of resonant gas-sensor microwave telemetry

open access: yesРоссийский технологический журнал, 2021
The possibility of using microstrip reflector microwave resonators in solving problems of resonant gas-sensor telemetry on layered dielectric substrates with gas-sensitive sputtering was investigated.
M. S. Kostin, A. D. Yarlykov
doaj   +1 more source

Reconfigurable Giant Nonreciprocity at Near‐Normal Incidence via Phase‐Change Magneto‐Optical Metagratings

open access: yesLaser &Photonics Reviews, EarlyView.
A phase‐change magneto‐optical metagrating combines GST switching with InAs guided‐mode resonances to achieve strong nonreciprocal absorption contrast near normal incidence. A static magnetic bias creates direction‐dependent resonant splitting, while GST crystallization quenches and latches the response.
Ye Ming Qing   +5 more
wiley   +1 more source

Superconducting Tunable Microstrip Gap Resonators Using Low Stress RF MEMS Fabrication Process

open access: yesIEEE Journal of the Electron Devices Society, 2017
A Nb superconducting tunable microstrip gap resonator has been designed and fabricated with low stress Au RF MEMS dc-contact switches. The resonator can be tuned in four states from 12-15 GHz.
Robert R. Benoit, N. Scott Barker
doaj   +1 more source

Microstrip ring resonator for soil moisture measurements [PDF]

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 1997
Development of a successful remote sensing instrument for soil moisture relies on the accurate knowledge of the soil dielectric constant (/spl epsiv//sub soil/) to its moisture content. Two existing methods for measurement of dielectric constant of soil at low and high frequencies are, respectively, the time domain reflectometry and the reflection ...
Kamal Sarabandi, Eric S. Li 0001
openaire   +1 more source

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