6-18 GHz Edge Mode Isolator
A stripline geometry with high permeability pole pieces in contact with the upper and lower ground planes minimized the magnetic internal field non-uniformity that can degrade performance at low frequencies. A commercially available ferrite with 4πM=3440 gauss gave optimum isolator performance. YIG...
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Published in | 2007 IEEE/MTT-S International Microwave Symposium pp. 687 - 690 |
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Main Authors | , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
01.06.2007
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Subjects | |
Online Access | Get full text |
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Summary: | A stripline geometry with high permeability pole pieces in contact with the upper and lower ground planes minimized the magnetic internal field non-uniformity that can degrade performance at low frequencies. A commercially available ferrite with 4πM=3440 gauss gave optimum isolator performance. YIG sections at the input and output with 4πM=1780 gauss minimized low frequency loss due to excitation of magnetostatic waves. The calculated S 12 was ~ldB from 4GHz to 20GHz with S 21 exceeding -20dB from 6GHz to 17GHz. Measured S 21 , was >-3dB from 7GHz to 19GHz. S 12 , was <-10dB from 6GHz to 20GHz. |
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ISBN: | 1424406870 9781424406876 |
ISSN: | 0149-645X 2576-7216 |
DOI: | 10.1109/MWSYM.2007.380013 |