Results 281 to 290 of about 93,145 (342)

Miniaturized rat‐race coupler with harmonic suppression

Microwave and Optical Technology Letters, 2014
ABSTRACTThis article presents a miniaturized rat‐race coupler with harmonic suppression. The proposed coupler only takes 15.1% of the area of the corresponding conventional rat‐race coupler. By replacing the traditional transmission line with the proposed stub‐loaded transmission line equivalently, the coupler performances can be retained and size can ...
Wei Nie, Yong-Xin Guo, Sha Luo, Yong Fan
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Harmonic suppressed differential phase shifter

2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, 2013
For the first time, a broadband differential phase shifter with harmonic suppression is proposed. The proposed structure is not only used to provide a constant differential phase shift over the desired wide bandwidth, but also have a significant harmonic band rejection at the same time.
S.Y. Zheng, Y. M. Pan, Y. L. Long
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Harmonic suppressed photonic microwave filter

Journal of Lightwave Technology, 2003
This paper proposes a photonic microwave filter based on wavelength-division multiplexing (WDM) of multiple optical carriers and dispersive media. Harmonic suppression is obtained using nonuniform tap spacing to extend the filter free spectral range by a Vernier effect. The experimental results presented are in excellent agreement with theory.
B. Vidal, V. Polo, J.L. Corral, J. Marti
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The harmonic suppression of LNA

2008 8th International Symposium on Antennas, Propagation and EM Theory, 2008
In this paper, we designed an amplifier based on the transistor ATF 34143 from Agilent. Networks of input and output with appropriate I/O matching were designed through the ADS design software in order to match the impedance of input and output to 50 Ohm. In addition, special optimizations on noise figure and transmission gain were conducted.
null Shen Liu, null Donglin Su, null Huadong Guo   +2 more
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Suppression of inverter output harmonic

2010 3rd International Conference on Computer Science and Information Technology, 2010
Using the harmonic characteristics of output voltage of inverter to design an ameliorative filter which can suppress common-mode and differential-mode voltage at the same time. The simulation is done by MATLAB and the results of the simulation show that long cables are allowed to connect inverter and motor for the filter.
null Shihong Wu, null Junnan Wan, null Guokai Sun, null Jianwei Ji, null Ping Yang, null Fengli Jing   +5 more
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An Overview on Harmonic Suppression

2018 Chinese Control And Decision Conference (CCDC), 2018
due to the use of a large number of power electronic equipment in the power system and the increase of nonlinear load, harmonic power quality problems become more and more complex. As one of the most important contents in the research of power quality, the harmonic of power system attracts more and more attention.
Youjie Ma, Faping Hong, Xuesong Zhou, Zhiqiang Gao   +3 more
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The Harmonic Suppression of DFIG

Advanced Materials Research, 2014
As a result of using converter and the other power electronic devices on the side of doubly-fed induction generator (DFIG) rotor, it will produce a large amount of harmonic current at runtime. In order to reduce the harmonic pollution to power network, DFIG uses a variety of harmonic suppression measures.
Zhi Rui Liang, Meng Ya Zhao
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