Design and Experimental Study of a High-Gain W-Band Gyro-TWT With Nonuniform Periodic Dielectric Loaded Waveguide

2014 ◽  
Vol 61 (7) ◽  
pp. 2564-2569 ◽  
Keyword(s):  
Experimental Study ◽  
High Gain

Experimental study and theoretical simulation for high gain compact Er3+-Yb3+-codoped fiber laser

2009 ◽  
Author(s):  
Feng Song ◽  
Zhenzhou Cheng ◽  
Changguang Zou ◽  
Lanjun Luo ◽  
Yingying Cai ◽  
...  
Keyword(s):  
Experimental Study ◽  
Fiber Laser ◽  
High Gain ◽  
Theoretical Simulation

Experimental Study of Grazing Incidence Slab Laser Amplifier with High Gain

2018 ◽  
Vol 45 (1) ◽  
pp. 0101008
Author(s):  
徐霜馥 Xu Shuangfu ◽  
唐超 Tang Chao ◽  
汪勇 Wang Yong ◽  
郑峰 Zheng Feng ◽  
项震 Xiang Zhen ◽  
...  
Keyword(s):  
Experimental Study ◽  
Grazing Incidence ◽  
High Gain ◽  
Laser Amplifier ◽  
Slab Laser

A miniature tri-band RFID reader antenna with high gain for portable devices

2016 ◽  
Vol 9 (5) ◽  
pp. 1163-1167 ◽  
Author(s):  
Bo Wang ◽  
Wenqing Wang
Keyword(s):  
Experimental Study ◽  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Return Loss ◽  
High Gain ◽  
Monopole Antenna ◽  
Portable Devices ◽  
Reader Antenna ◽  
Frequency Identification ◽  
Miniature Antenna

This paper presents a miniature monopole reader antenna for tri-band radio frequency identification (RFID) portable devices. The proposed antenna operates at the main RFID frequencies and can alleviate and compensate for the shortcomings of a single-band antenna. An additional rectangular stub couples with the bent monopole antenna, allowing the latter to resonate at the RFID bands at 902–928 MHz, 2.4–2.48 GHz, and 5.725–5.875 GHz. By bending the feedline, the dimensions of the miniature antenna are reduced to 115.5 × 20 × 1.6 mm3, facilitating its integration into portable devices. The measured bandwidths(return loss < −10 dB) of the proposed antenna are 677, 580, and 250 MHz in the three operating bands, 883–1560 MHz, 2.31–2.89 GHz, and 5.65–5.9 GHz, respectively, with high-gain characteristics. An experimental study of a fabricated prototype of the optimized antenna is performed, and the results verify its good performance.

scholarly journals Experimental study of a high-gain harmonic-generation free-electron laser in the ultraviolet

2004 ◽  
Vol 7 (5) ◽  
Author(s):  
Adnan Doyuran ◽  
Louis DiMauro ◽  
William Graves ◽  
Richard Heese ◽  
Erik D. Johnson ◽  
...  
Keyword(s):  
Experimental Study ◽  
Harmonic Generation ◽  
Free Electron ◽  
Free Electron Laser ◽  
High Gain

scholarly journals Experimental Measurement of Erbium-Doped Optical Fibre Charecteristics for Edfa Performance Optimization

2019 ◽  
Vol 56 (2) ◽  
pp. 33-41
Author(s):  
I. Lavrinovica ◽  
A. Supe ◽  
J. Porins
Keyword(s):  
Experimental Study ◽  
Performance Optimization ◽  
Gain Coefficient ◽  
High Gain ◽  
Optical Fibres ◽  
Gain Saturation ◽  
Source Power ◽  
Fibre Amplifier ◽  
Erbium Doped ◽  
Configuration Scheme

Abstract The paper presents experimental study of the major erbium-doped fibre amplifier (EDFA) features such as gain at low signal and gain saturation by an application of different erbium-doped optical fibres (EDFs). The main objective of the research is to estimate how the performance of EDFA varies depending on the length of doped fibre, pumping configuration scheme, as well as excitation source power. It is shown that a high gain coefficient of 16–20 dB can be practically achieved.

An experimental study of high gain parametric amplification in MEMS

2010 ◽  
Vol 162 (2) ◽  
pp. 145-154 ◽  
Author(s):  
Zhongxu Hu ◽  
Barry J. Gallacher ◽  
Kiran M. Harish ◽  
James S. Burdess
Keyword(s):  
Experimental Study ◽  
High Gain ◽  
Parametric Amplification

scholarly journals Simulation and experimental study of phase characteristics in high-gain relativistic klystron amplifier

2015 ◽  
Vol 64 (8) ◽  
pp. 084102
Author(s):  
Wu Yang ◽  
Xu Zhou ◽  
Xie Hong-Quan ◽  
Li Zheng-Hong ◽  
Ma Qiao-Sheng
Keyword(s):  
Experimental Study ◽  
High Gain ◽  
Relativistic Klystron
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