Results 31 to 40 of about 118,677 (214)

DESIGN OF COMPACT BANDPASS QUASI-ELLIPTIC MICROSTRIP FILTERS

Известия высших учебных заведений России: Радиоэлектроника, 2018
This paper considers an algorithm for development of the sixth order compact microstrip bandpass filters with quasi-elliptic characteristics. The proposed technique is applied for synthesis of two filters for the L- and X-band.
Roman E. Semernya, Sergey L. Chernyshev, Artem R. Vilenskiy, Eduard O. Mozharov   +3 more
doaj   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

Advanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting, Yuh‐Chyi Chang, Yi‐Chan Hung, Cheng‐Yuan Hsiao, Chao‐Kai Wen, Tsung‐Hsien Lin   +5 more
wiley   +1 more source

Silicon gap-loaded microstrip slit-tetragonal resonator under IR-irradiation

, 2007
A microstrip slit-tetragonal resonator gap-loaded with a piece of silicon is proposed as optical tuning element. Change of photoconductivity of silicon, after irradiation of it with an infrared lamp, results a significant change of density (25 dB) of the
Budimir, D., Zouganelis, G.
core   +1 more source

A New Narrow Band Dual-Mode Miniaturized Bandpass Filter Design for Wireless Communication Systems [PDF]

Engineering and Technology Journal, 2009
A new narrowband, compact, and low profile microstrip filter design ispresented in this paper as a candidate for use in modern wireless systems. The proposed design is based on the use of fractal multiple ring resonator.
Nasr N Hussain, Jawad K. Ali
doaj   +1 more source

Design of a Triple-band Microstrip Bandpass Filter with Wide Harmonic Suppression Based on Stepped-impedance Resonators

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, Suttee Tubtongdee, Adisorn Sirikham, Jessada Konpang, Nattapong Intarawiset   +4 more
doaj   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

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

ARO-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, Salah I. Yahya, Abbas Rezaei, Fawwaz A. Hazzazi , Binh N. Nhu   +4 more
doaj   +1 more source

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, Meng Chen, Guanchen Li, Ruifeng Liu, Yingxin Wang, Ziran Zhao   +5 more
wiley   +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, Chong He, Nan Wang, Liming Si, Weiren Zhu   +4 more
wiley   +1 more source

A Compact Resistively Loaded Metamaterial Absorber for 2.4 GHz RF Energy Harvesting With Impedance‐Matched Rectifier Analysis

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