Results 111 to 120 of about 146,196 (303)
Advanced Science, EarlyView.A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang +3 more
wiley +1 more source
Dual-Band Absorptive Bandpass Filters Using a Dual-Behavior Matching Section
IEEE AccessThis study introduces a dual-band absorptive bandpass filter that employs a dual-behavior matching section. The proposed design utilizes a filter methodology based on a low-pass filter prototype, enabling the development of higher-order distributed dual ...
Young-Ho Cho, Cheolsoo Park
doaj +1 more source
IEICE Electronics Express, 2007 In this paper, a super ultra-wideband (UWB) bandpass filter (BPF) with frequency bandwidth from 3.0GHz to 22.5GHz (-10dB-return loss bandwidth), which is much wider than that of the conventional UWB BPF, was proposed and demonstrated. The filter employed a simple and compact broadside-coupling structure.
Daisuke Kurita, Keren Li
openaire +2 more sources
Advanced 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 of Compact UWB Bandpass Filter with Multiple Notches using Stepped-Impedance MMR and Interdigital Coupled Line [PDF]
Journal of Electrical and Electronics Engineering, 2019 The proposed design is a compact ultrawide-band bandpass filter suitable for unlicensed wireless communication applications from 3.1 to 10.6 GHz at center frequency 6.5 GHz with improved lower and upper stopband performance.
SINGH Inder Pal, BHATT Praveen
doaj
Self‐Adhesive Conductive Elastomers for Gel‐Free Biopotential Recording
Advanced Electronic Materials, EarlyView.σPOMaC, a self‐adhesive conductive citrate elastomer incorporating PEDOT:PSS and DBSA, enables gel‐free biopotential electrodes with stable conductivity and intrinsic skin adhesion. The composite exhibits low resistivity (∼ 0.02 Ω·cm), robust electrical performance during repeated use, and reliable on‐body ECG acquisition comparable to Ag/AgCl ...
Kirstie M. K. Queener +7 more
wiley +1 more source
Microwave Diplexer Purely Based on Direct Synchronous and Asynchronous Coupling [PDF]
Radioengineering, 2016 A diplexer realized purely based on direct coupling is presented. No cross-coupling is involved in the design process. The microwave diplexer is achieved by coupling a dual-band bandpass filter onto two individual channel filters.
A. O. Nwajana, K. S. K. Yeo
doaj
Detrending and the Distributional Properties of U.S. Output Time Series [PDF]
We study the impact of alternative detrending techniques on the distributional properties of U.S. output time series. We detrend GDP and industrial production time series employing first-differencing, Hodrick-Prescott and bandpass filters.
Andrea Roventini +3 more
core
Reactanceless synthesized impedance bandpass amplifier [PDF]
, 1985 An active R bandpass filter network is formed by four operational amplifier stages interconnected by discrete resistances. One pair of stages synthesize an equivalent input impedance of an inductance (L sub eq) in parallel with a discrete resistance (R ...
Kleinberg, L. L.
core +1 more source