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Transmission line

About: Transmission line is a research topic. Over the lifetime, 35386 publications have been published within this topic receiving 339619 citations.


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Patent
25 Dec 2013
TL;DR: In this paper, a branch knot loading compact type microstrip filter is proposed to solve the problem that traditional microstrip filters are large in size, low in stop band restrain level and high in loss.
Abstract: The invention provides a branch knot loading compact type microstrip filter. Metal circuits with left-right symmetrical patterns are arranged on a metal surface layer. The metal circuits comprise bent input-output ports which are left-right symmetrical and arranged in a Z shape, source end and load loading transmission lines and input-output couplers which are inwardsafter bending. The source end and the loading transmission lines are connected in a bending mode. The branch knot loading compact type microstrip filter further comprises a T-shaped opening circuit loading upper transmission line, a T-shaped opening circuit loading lower transmission line and left-right-parallel even transmission line resonance units of a downward bent structure. The T-shaped opening circuit loading upper transmission line and the T-shaped opening circuit loading lower transmission line are located at a middle position and of a cross-shaped crossing structure and arranged vertically. The branch knot loading compact type microstrip filter solves the problem that a traditional microstrip filter is large in size, low in stop band restrain level and high in loss.

7 citations

Proceedings Article
10 Mar 2008
TL;DR: In this paper, the results of a parametric study of different transmission line topologies regarding the tuning efficiency when controllable anisotropic dielectrics are used are presented.
Abstract: This paper shows, based on a developed simulation tool, the results of a parametric study of different transmission line topologies regarding the tuning efficiency when controllable anisotropic dielectrics are used. At first a short introduction of the properties of liquid crystals (LC), representing such a controllable dielectric, is given as well as the theoretical models used for the physical simulation of LCs. Then, this scheme will be applied to study the tuning efficiency of different line types and dimension parameters which include a comparison with measured results. Subsequently, a new tuning concept, based on quasi orthogonal electric bias fields, will be introduced and analyzed.

7 citations

Patent
08 Sep 2010
TL;DR: In this article, an industrial frequency resonance deicing device and method of a transmission line is described. But the device mainly consists of a resonance capacitance and an industrial-frequency transformer.
Abstract: The invention relates to an industrial frequency resonance deicing device and method of a transmission line. The device mainly consists of a resonance capacitance and an industrial frequency transformer. The first side of the industrial frequency transformer is connected with a fore power network or a generator; the secondary side is connected with a resonance capacitor reactor; the other end of the resonance capacitor reactor is connected with an icing line. One the line is icing, power is stopped and the device is accessed and one end of the line is shortly connected by utilizing the principle of LC series resonance. When the first side of the industrial frequency transformer is added with an industrial frequency power, series resonance near 50Hz can be generated by the resonance capacitor reactor and a line equivalent inductance, and icing can be automatically melt through the heating of a lead wire. The device has the advantages of a high deicing efficiency, an easy control, high practicability, broad developing and application prospects, and capability of generating great economic and social benefits.

7 citations

Proceedings ArticleDOI
17 Dec 2007
TL;DR: In this paper, the authors presented coplanar waveguide structures with low attenuation and slow-wave reduction implemented in standard silicon technologies and suitable for frequencies of up to 40 GHz.
Abstract: This paper presents coplanar waveguide structures with low attenuation and slow-wave reduction implemented in standard silicon technologies and suitable for frequencies of up to 40 GHz. Optimization and modelling of slow-wave coplanar waveguides (SW-CPW) is provided here and compared to standard CPW models. An on-chip SW-CPW attenuation of 0.25 dB/mm at 40 GHz is obtained, compared with 2.8 dB/mm for a standard CPW. As an application, a non-linear transmission line (NLTL) was designed using SW-CPW sections. This NLTL can sharpen the pulse rise time by 75%. This work demonstrates the feasibility and advantage of using SW-CPW techniques to build all-silicon pulse-compression NLTLs using commercial silicon foundry processes.

7 citations

Journal ArticleDOI
TL;DR: In this article , a holistic risk-based maintenance decision-making methodology for transmission overhead lines and its practical implementation is presented, which is refined with anomaly detection and health index prediction models that use machine learning algorithms to improve the input data quality.

7 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023592
20221,457
2021641
20201,161
20191,361
20181,407