scholarly journals Generation of Cylindrical Vector Dissipative Soliton Using an Ultra-broadband LPFG Mode Converter with Flat Conversion Efficiency

2021 ◽  
Author(s):  
Mao Feng ◽  
Jiangyong He ◽  
Baiwei Mao ◽  
Wenzhe Chang ◽  
Pan Wang ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Mode Converter ◽  
Dissipative Soliton

Periodic printed semi-annular substrate loaded TM01–TE11 mode converter

2020 ◽  
pp. 1-7
Author(s):  
Ashish Chittora ◽  
Swati Varun Yadav
Keyword(s):  
Conversion Efficiency ◽  
Mode Conversion ◽  
Circular Waveguide ◽  
Mode Converter ◽  
Space Applications ◽  
High Power Microwave ◽  
Relative Bandwidth ◽  
Measurement Results ◽  
Power Handling Capability ◽  
Lightweight Structure

Abstract A mode converter design using the concept of periodic substrates loading in a circular waveguide, to convert TM01 mode to TE11 mode is presented in this paper. The detailed design principle, simulation, and measurement results are included in this study. Simulation results show that the purity of output fundamental TE11 mode of the converter approaches 99.2% for an operating frequency of 3.2 GHz. The mode conversion efficiency is more than 90% over 3.07–3.25 GHz band and the relative bandwidth is 5.6% (180 MHz). The proposed TM01–TE11 mode converter has advantages, such as the compact, lightweight structure, high conversion efficiency, and proper bandwidth. The fabrication cost is relatively low and the structure is easy to fabricate. The power-handling capability is limited to 10 MW due to dielectric-based design. The compactness and portability of the system (e.g. Space applications, Accelerators, High Power Microwave) can be improved significantly using the proposed mode converter.

A thiourea additive-based quadruple cation lead halide perovskite with an ultra-large grain size for efficient perovskite solar cells

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite ◽  
Halide Perovskite ◽  
Lead Halide

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.

GaAsP Top Solar Cells for Increased Solar Conversion Efficiency

1989 ◽  
Author(s):  
James B. McNeely ◽  
Gerald H. Negley ◽  
Allen M. Barnett
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Solar Conversion ◽  
Solar Conversion Efficiency
Sign in / Sign up

Export Citation Format

Share Document