NDLI: Design of a High-Power Superconducting Filter Using Resonators With Different Linewidths

Content Provider	IEEE Xplore Digital Library
Author	Xubo Guo Bin Wei Xiaoping Zhang Bisong Cao Shichao Jin Huili Peng Longma Gao Baoxin Gao
Copyright Year	1963
Abstract	This paper presents a design method to develop a high-power superconducting microstrip filter with different linewidth resonators. The linewidth of every resonator is optimized using this method to meet the same maximum current density. Thus, the power-handling capability of the five-pole filter on a limited substrate size can reach a maximum value. The design method is verified by the electromagnetic simulation of the current density distribution. The high-power superconducting filter is designed and fabricated on a 38 mm times 30 mm times 0.505 mm LaAlO₃ substrate. The maximum resonator linewidth is 7 mm, and the minimum one is 1.6 mm. The filter has a center frequency of 2006 MHz and a narrow bandwidth of 1.0%. The measured power level is up to 35 dBm at 65 K without an evident change in insertion loss.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	2555
Ending Page	2561
Page Count	7
File Size	516193
File Format	PDF
ISSN	00189480
Volume Number	55
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting filters Resonator filters Design methodology Current density Microstrip filters Microstrip resonators Optimization methods Frequency Bandwidth Power measurement high-temperature superconductors Bandpass filters high-power filters
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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