Results 31 to 40 of about 307,700 (210)
RMUTL Engineering Journal, 2023 This paper presents a triple-band microstrip bandpass filter with a broad harmonic suppression based on stepped-impedance resonators. This stepped-impedance resonator structure reduces the microstrip open-loop halfwave length resonator filter's circuit ...
Thaweewong Akkaralaertsest +4 more
doaj +1 more source
International Journal of Antennas and Propagation, 2014 A miniaturized dual-frequency dual-polarization microstrip patch antenna with high isolation between receiving and transmitting ports (operating at 2.1 GHz for receiving and at 2.5 GHz for transmitting) is presented in this paper.
Chunxia Cheng +3 more
doaj +1 more source
Microfluidically Tunable Microstrip Filters [PDF]
IEEE Transactions on Microwave Theory and Techniques, 2015 A new approach for the development of tunable and reconfigurable microstrip (MS) devices is proposed. The basic idea consists of using a suspended substrate with an integrated network of plastic tubes, which can be selectively filled in with a high-permittivity dielectric fluid, e.g., water.
Diedhiou, Daouda +2 more
openaire +2 more sources
From Sensing Mechanisms to System Co‐Design: Graphene‐Based Sensors and Readout Circuits
Advanced Science, EarlyView.This review establishes a unified PS–EQ–RF framework linking graphene sensing mechanisms, native electrical outputs, and output‐specific readout circuits. Voltage‐, current‐, resistance‐, and capacitance‐type sensing systems are systematically classified to guide architecture selection, low‐noise design, system co‐design, and practical integration ...
Jinduo Zhang +5 more
wiley +1 more source
Design of thick film microstrip lowpass filters [PDF]
, 2003 This paper presents the CAD of RF and microwave filters such as shielded single layer thick film lowpass filters for wireless communication systems.
Budimir, D. +3 more
core +1 more source
Recent Advances in Programmable Metasurfaces and Meta‐Devices
Advanced Electronic Materials, EarlyView.Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao +4 more
wiley +1 more source
Advanced Electronic Materials, EarlyView.A compact resistively loaded metamaterial absorber captures RF energy at 2.4 GHz and directs most of the accepted power to modeled loads. The resonant response is confirmed experimentally for the fabricated absorber, while an impedance‐matched rectifier is evaluated through simulation. The stage‐wise results distinguish absorber, rectifier, and cascade
Md. Murad Kabir Nipun, Md. Jahedul Islam
wiley +1 more source
MODELING OF BANDPASS FILTERS WITH ATTENUATION POLES USING PARALLEL COUPLING CHANNELS
Information and Telecommunication SciencesBackground. Microwave filters are critical components in modern communication systems, playing a fundamental role in signal processing by allowing specific frequency bands to pass while attenuating unwanted frequencies.
Костянтин Шевцов +1 more
doaj +1 more source
A COMPACT MICROSTRIP BANDSTOP FILTER [PDF]
Progress In Electromagnetics Research Letters, 2009 In this paper, a novel microstrip bandstop fllter by etching a square split ring in the center of microstrip line is proposed. Low insertion loss in the passband, high rejection level and integrated structure should be mentioned as advantages for this resonator.
Saeed Fallahzadeh, Majid Tayarani
openaire +1 more source
Food Safety and Health, EarlyView.Biosensors enable rapid, sensitive, and portable detection of pathogens, contaminants, allergens, and food adulteration. Integration with smart packaging, smartphones, IoT, and machine learning supports real‐time monitoring and intelligent decision‐making, whereas microfluidics, biodegradable materials, explainable AI, and blockchain offer pathways ...
Mohima Akther Any +7 more
wiley +1 more source