Author:
Rezaee Payman,Höft Michael
Abstract
AbstractIn this paper, a new microstrip slow wave open loop resonator is proposed. This resonator overcomes the substantial limitation of the conventional slow wave open loop resonators, which limits the spurious-free band of those resonators. The new proposed resonator improves the spurious-free band up to 8 times of the fundamental frequency, which is 3.16 times of the conventional slow wave open loop resonators. For the proposed resonator the coupling factor and the external quality factor curves, which are the design curves of a narrowband filter, are extracted using a full wave simulator, i. e. HFSS. These curves are utilized for the design of two three-pole Chebyshev bandpass filters. One of these filters is fabricated. Simulation and measurement results are reported which are in good agreement. Designed filters provide 75 % and 83 % of footprint reduction in comparison with the conventional open loop resonator filters. Different parameters which can improve the spurious-free band are explained in the paper.
Subject
Electrical and Electronic Engineering
Reference32 articles.
1. Compact quarter-wave resonator and its applications to miniaturized diplexer and triplexer,;IEEE Trans. Microw. Theory Tech.,2011
2. Compact filter configurations using concentric microstrip open-loop resonators,;IEEE Microw. Wireless Compon. Lett.,2012
3. End-coupled microstrip slow-wave resonator filter,;Electron. Lett.,1996
4. New compact bandpass filter using microstrip λ/4 resonators with open stub inverter,;IEEE Microw. Guided Wave Lett.,2000
5. Theory and experiment of dual-mode microstip triangular patch resonators and filters,;IEEE Trans. Microwave Theory Tech.,2004
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