Results 41 to 50 of about 20,599 (222)

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

open access: yesAdvanced Materials Technologies, EarlyView.
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   +4 more
wiley   +1 more source

Simulation of Impedance Discontinuities Resulting from Degradation of Interconnections on Printed Circuit Boards [PDF]

open access: yes, 2011
Numerical simulation of impedance discontinuities resulting from degradation of interconnections on printed circuit ...
Dipartimento Di Elettronica   +7 more
core   +2 more sources

Metasurface‐Enabled Active‐Like Passive Radar

open access: yesAdvanced Science, EarlyView.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li   +7 more
wiley   +1 more source

Filtenna Integration Achieving Ideal Chebyshev Return Losses [PDF]

open access: yes, 2014
This paper demonstrates that it is possible to find an ideal filter response (Chebyshew, Butterworth,..) considering the antenna as the last resonator of a filter under certain circumstances related with the antenna performance and the bandwidth of the ...
Collado, C.   +5 more
core   +1 more source

Antenna-coupled TES bolometers used in BICEP2, Keck array, and SPIDER

open access: yes, 2015
We have developed antenna-coupled transition-edge sensor (TES) bolometers for a wide range of cosmic microwave background (CMB) polarimetry experiments, including BICEP2, Keck Array, and the balloon borne SPIDER. These detectors have reached maturity and
A. D. Turner   +67 more
core   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

open access: yesAdvanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Design and analysis of reconfigurable filters employing varactor and PIN diodes [PDF]

open access: yesEngineering and Technology Journal
This work presents a comprehensive and comparative study on reconfigurable/tunable microstrip filters, aiming to analyze and understand the impact of varactors, PIN diodes, lumped capacitors, and inductors on the overall filter performance.
Salah Mahdi   +2 more
doaj   +1 more source

A New Method for Designing Modified Compact Microstrip LPF with Sharp Roll-Off and Wide Stopband [PDF]

open access: yesRadioengineering, 2021
A new method for designing a compact microstrip lowpass filter (LPF) with wide stopband width (SBW) and sharp roll off (ROF) is presented. In proposed designing procedure, high impedance microstrip lines are bent to achieve an LPF with compact size. Then,
A. Hoseinabadi   +3 more
doaj  

A Compact Ultra-Wideband Bandpass Filter with Sharp-Rejection using Complementary Split Ring Resonators [PDF]

open access: yesAUT Journal of Electrical Engineering, 2016
A compact and sharp-rejection ultra-wideband (UWB) microstrip band-pass filter (BPF) is developed using of left handed metamaterials realized by complementary split ring resonator (CSRR).
Mostafa Danaeian   +3 more
doaj   +1 more source

Sharp Response Microstrip LPF using Folded Stepped Impedance Open Stubs [PDF]

open access: yes, 2013
A novel microstrip lowpass filter with high selectivity and wide stopband is proposed that comprises two lateral folded open stubs and a central mirrored semi-circle ended suppressing cell.
Ahmadi, A.   +4 more
core   +1 more source

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