Investigation of a 3D-Printed Narrowband Filter with Non-Resonating Nodes

Abolfazl Mostaani,Lu Qian,Rafael Martinez,Paul F Wilson,Moataz Attallah,Yi Wang,Mark A Williams

2021 IEEE MTT-S International Microwave Filter Workshop (IMFW)（2021）

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摘要

In this paper a narrowband third-order filter at 9 GHz with two transmission zeros is designed using the non-resonating node (NRN) method. The filter is fabricated using selective laser melting (SLM) technology. Without tuning, the measurements show promising results, but with a frequency shift and resonator detuning. Micro X-Ray CT imaging has been performed to investigate the imperfection in the...

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关键词

Band-pass filters,Microwave measurement,Resonator filters,Resonant frequency,Masers,Microwave theory and techniques,Frequency measurement

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