微带短段谐振频率控制的新概念

2013 IEEE XXXIII International Scientific Conference Electronics and Nanotechnology (ELNANO) Pub Date : 2013-04-16 DOI:10.1109/ELNANO.2013.6552072

P. Sergienko, Y. Prokopenko, G. Vandenbosch

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引用次数: 4

摘要

提出了一种控制低成本可调微带滤波器的新方法。微带短段控制是通过从基板上分离一部分短段来实现的。衬底和信号电极之间的气隙是控制短管有效介电常数的非均质性，以这种方式提供共振频移。通过移动短段50微米，共振频率移动约1ghz。建立了谐振器的等效电路模型。计算结果与时域有限差分法(FDTD)和有限元法(FEM)的模拟结果吻合较好。

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Novel concept for microstrip stub resonant frequency control

A novel concept for controlling a low-cost tunable microstrip filter is proposed. The microstrip stub controlling is realized by detaching a part of the stub from the substrate. The air gap between the substrate and the signal electrode is the heterogeneity which controls the stub effective permittivity, in this way providing a resonance frequency shift. By moving the stub 50 microns the resonance frequency is shifted about 1 GHz. An equivalent circuit model of the resonator is developed. Calculation results are in good agreement with finite-difference time-domain method (FDTD) and finite elements method (FEM) simulations.

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2013 IEEE XXXIII International Scientific Conference Electronics and Nanotechnology (ELNANO)

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