Results 271 to 280 of about 1,189,790 (336)

Circularly polarized active integrated antenna

17th International Conference on Applied Electromagnetics and Communications, 2003. ICECom 2003., 2004
The paper presents a new design of a circularly polarized microstrip patch antenna integrated with a push-pull transistor oscillator.
Bonefačić, Davor, Kaštela, Marijana, Bartolić, Juraj   +2 more
openaire   +2 more sources

Circularly Polarized Organic Room Temperature Phosphorescence from Amorphous Copolymers.

Journal of the American Chemical Society, 2021
Organic optoelectronic functional materials featuring circularly polarized emission and persistent luminescence represent a novel research frontier and show promising applications in data encryption, displays, biological imaging, and so on.
Long Gu, Wenpeng Ye, Xiao Liang, Anqi Lv, Huili Ma, Manjeet Singh, Wenyong Jia, Zhaocun Shen, Yi Guo, Yaru Gao, Hongzhong Chen, Dongdong Wang, Yinglong Wu, Jiawei Liu, Hou Wang, You‐Xuan Zheng, Zhongfu An, Wei Huang, Yanli Zhao   +18 more
semanticscholar   +1 more source

Circularly polarized optical spatial solitons

Optics Letters, 2005
We present, experimentally and theoretically, a polymer material system that supports optical spatial solitons of circular polarization. We demonstrate one-dimensional circularly polarized dark solitons supported by photoisomerization nonlinearity in a bulk polymer.
Xiao Sheng, Wang, Wei Long, She, Shui Zhu, Wu, Fang, Zeng   +3 more
openaire   +2 more sources

A Low-Profile Dual-Band Dual-Circularly Polarized Folded Transmitarray Antenna with Independent Beam Control

IEEE Transactions on Antennas and Propagation, 2021
This communication presents a low-profile, compact, high gain dual-band and dual-circularly polarized (CP) folded transmitarray antenna (FTA) with independent beam control at Ku-band.
Haoyu Lei, Y. Liu, Yongtao Jia, Zhenzhen Yue, X. Wang   +4 more
semanticscholar   +1 more source

A Circularly Polarized Dual-Band Microstrip Antenna

IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005., 2005
In this paper, we present a dual-band CP patch antenna based on the branch-line coupler feeding technique. The compactness of the dual-band antenna is obtained by inserting a small high-frequency patch into a large low-frequency one. Both patches are printed on the same upper substrate and electromagnetically fed through two perpendicular slots etched ...
Luxey, Cyril, Ferrero, Fabien, Jacquemod, G., Staraj, Robert   +3 more
openaire   +3 more sources

Circularly Polarized Luminescence Induced by Hydrogen-Bonding Networks in a One-Dimensional Hybrid Manganese(II) Chloride.

Angewandte Chemie
Chiral hybrid metal halides hold great potential as the circularly polarized luminescence light sources. Herein, we have obtained two enantiomeric pairs of one-dimensional hybrid chiral-manganese(II) chloride single crystals, R/S-(3-methyl piperidine ...
Jing Li, Qiulian Luo, Jianwu Wei, Liya Zhou, Peican Chen, Binbin Luo, Yibo Chen, Qi Pang, Jin Zhong Zhang   +8 more
semanticscholar   +1 more source

Fabrication of Circularly Polarized MR‐TADF Emitters with Asymmetrical Peripheral‐Lock Enhancing Helical B/N‐Doped Nanographenes

Advances in Materials, 2021
Circularly polarized thermally activated delayed fluorescence (CP‐TADF) and multiple‐resonance thermally activated delayed fluorescence (MR‐TADF), which exhibit novel circularly polarized luminescence and excellent color fidelity, respectively, have ...
Xiugang Wu, Jingwei Huang, Bo‐Kang Su, Sai-Nan Wang, Li Yuan, Wei Zheng, Hu Zhang, You‐Xuan Zheng, Weiguo Zhu, Pi‐Tai Chou   +9 more
semanticscholar   +1 more source

Circularly polarized metasurface antennas

Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation, 2012
We present theory, design process and numerical results relevant to a X-band isoflux circularly polarized antenna for LEO satellite platform. The device is based on a metasurface made of a texture of small patches on a grounded dielectric slab. An in-plane feeder excites a surface wave on the metasurface that transforms it into a leaky wave The final ...
G. Minatti, S. Maci, FRENI, ANGELO, DE VITA, PAOLO, M. Sabbadini   +4 more
openaire   +1 more source

Chiral Spiro-Axis Induced Blue Thermally Activated Delayed Fluorescence Material for Efficient Circularly Polarized OLEDs with Low Efficiency Roll-off.

Angewandte Chemie, 2021
This work presents a chiral spiro-axis strategy which not only introduced the circularly polarized luminescence (CPL) property into thermally activated delayed fluorescence (TADF) molecules but also enhanced the intramolecular through space charge ...
Yi-Pin Zhang, X. Liang, Xu-Feng Luo, S. Song, Si Li, Yi Wang, Z. Mao, Wen‐Ye Xu, You‐Xuan Zheng, J. Zuo, Yi Pan   +10 more
semanticscholar   +1 more source

Chiral TADF-Active Polymers for High-Efficiency Circularly Polarized Organic Light-Emitting Diodes.

Angewandte Chemie, 2021
A strategy of chiral donor-acceptor copolymerization is proposed to develop chiral nonconjugated polymers with thermally activated delayed fluorescence (TADF).
Yin‐Feng Wang, Meng Li, Jin‐Ming Teng, He‐Ye Zhou, Wencai Zhao, Chuan-feng Chen   +5 more
semanticscholar   +1 more source