## Abstract A novel bandstop filter (BSF), with a stop band covering GSM‐900, GSM1800, Bluetooth, and future 5 GHz applications which possesses the characteristics of compact size and wide bandwidth is proposed and fabricated. Parameters are optimized via numerical simulations. The simulations are
Accurate design of a compact superconducting microstrip filter
✍ Scribed by Huili Peng; Xubo Guo; Shichao Jin; Yunlong Piao; Xiaoping Zhang; Bin Wei; Baoxin Gao; Bisong Cao
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 136 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
This article presents a six‐pole high‐temperature superconducting (HTS) filter at 2.5 GHz with a compact size of 10 mm × 15 mm on MgO substrate. Twin‐spiral resonators with high simulation accuracy are used in the design procedure. EM simulations verify that the filter response is insensitive to the variations of the cell sizes and the substrate parameters. The untuned measurement of the HTS filter at 70 K shows a high performance. The minimum return loss is 14.7 dB without any tuning. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 141–144, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24018
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