Results 61 to 70 of about 7,297 (221)

Rotated Half-Mode Substrate Integrated Waveguide and other Planar Integrated Structures [PDF]

, 2015
High data rate communication channels are becoming more and more integrated into our increasingly technological society. Substrate Integrated Waveguides (SIW) are one planar solution available to the microwave engineer, offering a low-loss and low ...
Farrall, Andrew J
core  

Surface Charges Guided Quasi‐TEM‐mode Microwave Propagation along Dielectric Nanowire

Advanced Physics Research, EarlyView.
According to Maxwell's equations, a single‐conductor transmission line cannot allow TEM‐mode electromagnetic wave propagation, however, this is based upon the assumption that dielectric material is isolated from the environment. In practice, surface electrostatic charges widely existed in nano‐materials with large surface‐to‐volume ratio.
BoYan Xu, Kaibo Zhang, Haojie Gao, Zhiyuan Gao, Kai Wang, Lihuan Zhao, Qi Yang, Bifeng Cui   +7 more
wiley   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

AFully Micromachined W-Band Coplanar Waveguide to Rectangular Waveguide Transition

, 2007
- A novel fully micromachined coplanar waveguide (CPW) to rectangular waveguide transition is presented in this paper.A metalized probe is adopted to couple the signal from the CPW to the rectangular waveguide through an aperture located at the center of
Bo Pan, Manos M. Tentzeris, John Papapolymerou, Manos. M. Tentzeris, Yuan Li   +4 more
core   +1 more source

Optical‐controlled magnon transport based on spin crossover switched molecular magnets

Smart Molecules, EarlyView.
A cyanide‐bridged W(V)–Fe(II) spin‐crossover single crystal was integrated into a magnon transport device, enabling reversible optical control of magnon transport through photo‐switched spin states. Abstract Molecule‐based devices that combine the advantages of fast time response and extremely low manipulation/transmission energy consumption of light ...
Yu‐Jing Gao, Shuo Chang, Liang Zhao, Yin‐Shan Meng, Zhiyong Qiu, Tao Liu   +5 more
wiley   +1 more source

A Wideband Feed Network for Vivaldi Antenna Arrays

International Journal of Antennas and Propagation, 2022
A wideband feed network for a Vivaldi antenna array is presented. A limitation of current wideband antenna arrays is the bandwidth of either the feed network or the antenna element.
Natasha Antoinette Hall, Johann Wilhelm Odendaal, Johan Joubert   +2 more
doaj   +1 more source

Nonreciprocal Electro‐Optic Intermodal Scattering With Momentum Engineered RF Waves

Nanophotonics, Volume 15, Issue 12, 25 June 2026.
We demonstrate highly selective nonreciprocal intermodal scattering in thin‐film lithium niobate using slow‐wave RF transmission lines. This electro‐optic momentum engineering approach enables magnet‐free nonreciprocal devices with a single RF input. ABSTRACT Spatiotemporal modulation approaches have been often employed as alternatives for producing ...
Jieun Yim, Gwan In Kim, Violet Workman, Seho Kim, Omar A. Barrera, Ruochen Lu, Gaurav Bahl   +6 more
wiley   +1 more source

Planar gunn diode characterisation and resonators elements to realise oscillator circuits [PDF]

, 2013
The paper describes the planar Gunn diode, which is well suited to providing milli-metric and tera hertz sources using microwave monolithic integrated circuit (MMIC) technologies. Different planar Gunn electrode geometries are described along with DC, RF
A. Stephen, M Kuball, G Dunn, Glover, J., Khalid, A., Oxley, C.H., Li Chong, J. Glover, Cumming, D.R.S., Dunn, G., G. A. Evans, Evans, G.A., Li, C., M Ismaeel Maricar, Ata Khalid, Kuball, M., Montes Bajo, M., Papageorgiou, V., Ismaeel Maricar, M, V Papageorgiou, C H Oxley, D R S Cumming, Stephens, A., M Montes Bajo   +23 more
core   +1 more source

New Transparent Bandpass Filter Using Aluminum Thin-Film Micromesh Structure

IEEE Access, 2019
In this study, we present the new transparent coplanar waveguide (CPW) bandpass filter using aluminum (Al) thin film micromesh structure. The filter is prepared by the semiconductor process of dc sputtering and standard lift-off technology.
Tzu-Chun Tai, Hung-Wei Wu, Kuan-Jen Lin, Cheng-Yuan Hung, Yeong-Her Wang   +4 more
doaj   +1 more source