Results 81 to 90 of about 14,280 (219)

Design and analysis of quasi‐lumped notch filter with extended upper pass band

Electronics Letters
This paper presents a hybrid technique‐based compact narrow band stop filter design for broadband applications. It provides the rejection of 60 dB at the centre frequency of 2.25 GHz without any stop band harmonics over the required frequency band of ...
Mohit, Satish Jhariya, Shailendra Singh, Raghvendra Kumar Rai   +3 more
doaj   +1 more source

Design of Compact BPF and Planar Diplexer for UMTS using Embedded-scheme Resonator [PDF]

, 2013
A compact planar diplexer utilizing embedded-scheme resonator (ESR) is designed for universal mobile telecommunications system (UMTS). The ESR is formed by embedding interdigital resonators into an open loop resonator.
Wang, G. M., Wang, Y. W., Wu, F., Zong, B. F.   +3 more
core   +1 more source

Enhanced Responsivity, Accuracy, and Stability of Aerosol Jet Printing via Mechanical Switching Valve Assisted Internal Shuttering

Advanced Science, Volume 13, Issue 9, 13 February 2026.
This work demonstrates ultra‐high ON‐OFF responsivity of AJP by mechanical switching valve assisted shuttering. The jet relaxation and ON‐OFF delay are substantially eliminated from greater than 35 s, maintaining patterning quality independent of the variations of printing parameters, permitting excellent process stability and universality.
Jinhang Wang, Li Meng, Shuhuan Zhang, Pan Chen, Kaiwen Wei, Beibei Zhu, Xiaoyan Zeng   +6 more
wiley   +1 more source

A Novel Fully Integrated 4-Bit IFM Subsystem Using Band-Stop Filters

Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2020
In this paper a 2-4 GHz microstrip IFM (Instantaneous Frequency Measurement) subsystem that uses Wilkinson power dividers, frequency discriminators based on band-stop filters and a DC arduino section is reported.
S. R. O de Souza, M. F. A de Souza, L. P. Pontes, M. T. de Melo, Ignacio Llamas-Garro   +4 more
doaj   +1 more source

A fundamental limit on the performance of geometrically-tuned planar resonators [PDF]

, 2011
Geometric frequency tuning in planar electromagnetic resonators is common in many applications. It comes, however, at a penalty in the resonance quality, Q0. The literature traces the causes of such penalty often in terms of the shortcomings in the added
Beach, MA, Morris, KA, Naji, A, Warr, PA
core   +2 more sources

Environmental and Ecological Monitoring with Biodegradable Technologies

Advanced Science, Volume 13, Issue 4, 19 January 2026.
This review examines the development and application of wireless biodegradable sensors for environmental monitoring. It explores (bio)degradable materials, their degradation mechanisms in various environments, and non‐toxic fabrication techniques. Additionally, it addresses scalable production and sustainable powering solutions, emphasizing the high ...
Mohammad Javad Bathaei, Yaren Bathaei, Zhengwei Liao, Maryam Yazdanmehr, Sarab S. Sethi, Denys Nikolayev, Filipe Arroyo Cardoso, Clementine M. Boutry   +7 more
wiley   +1 more source

Wideband and UWB antennas for wireless applications. A comprehensive review [PDF]

, 2017
A comprehensive review concerning the geometry, the manufacturing technologies, the materials, and the numerical techniques, adopted for the analysis and design of wideband and ultrawideband (UWB) antennas for wireless applications, is presented. Planar,
Cicchetti, Renato, Miozzi, Emanuela, Testa, Orlandino   +2 more
core   +3 more sources

Engineering Cathode–Electrolyte Interphase for High‐Performance Li–S Batteries

Carbon Neutralization, Volume 5, Issue 1, January 2026.
This review focuses on electrode surface modification strategies to fundamentally enhance battery cyclability and charge–discharge kinetics, addressing critical limitations in contemporary energy storage systems. ABSTRACT Lithium–sulfur (Li–S) batteries exhibit notable advantages, such as lower cost, due to the abundance and affordability of sulfur ...
Anni Ai, Wei Wei, Kaijie Miao, Jiangqi Zhou   +3 more
wiley   +1 more source

The new generation CMB B-mode polarization experiment: POLARBEAR [PDF]

, 2010
We describe the Cosmic Microwave Background (CMB) polarization experiment called Polarbear. This experiment will use the dedicated Huan Tran Telescope equipped with a powerful 1,200-bolometer array receiver to map the CMB polarization with unprecedented ...
Ade, P. A. R., Anthony, A., Arnold, K., Aubin, F., Boettger, D., Borrill, J., Cantalupo, C., Dobbs, M. A., Errard, J., Flanigan, D., Ghribi, A., Halverson, N., Hazumi, M., Holzapfel, W. L., Howard, J., Hyland, P., Jaffe, A., Keating, B., Kermish, Z., Kisner, T., Lee, A. T., Linder, E., Lungu, M., Matsumura, T., Meng, X., Miller, N., Myers, M., Nishino, H., O'Brient, R., O'Dea, D., Quealy, E., Reichardt, C., Richards, P. L., Schanning, I., Shimizu, A., Shimmin, C., Shimon, M., Spieler, H., Steinbach, B., Stompor, R., Suzuki, A., The Polarbear Collaboration, Tomaru, T., Tran, H. T., Tucker, C., Zahn, O.   +45 more
core   +2 more sources

From Detection to Countermeasure: A Review of Key Technologies in Counter‐Unmanned Aerial Vehicle Systems

IET Cyber-Systems and Robotics, Volume 8, Issue 1, January/December 2026.
ABSTRACT With the rapid proliferation of unmanned aerial vehicles (UAVs) in the military, logistics and public safety sectors, the threat of illegal intrusion, information theft, and security breaches has increased. This paper provides a comprehensive review of recent developments in counter‐unmanned aerial vehicle (counter‐UAV) systems, focussing on ...
Lei Xing, Can Cui, Miao Wang, Chao Xu
wiley   +1 more source