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A frequency-agile relativistic magnetron with axial tuning

A frequency-agile relativistic magnetron with axial tuning is presented. To achieve axial tuning, reentrant cavity which has two radial parts connected by a coupling hole had been introduced. Resonant frequency of this cavity configuration can be tuned by adjusting the axial length of each coupling...

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Published in:	IEEE electron device letters 2020-05, Vol.41 (5), p.1-1
Main Authors:	Qin, Fen, Zhang, Yong, Xu, Sha, Lei, Lu-rong, Ju, Bin-quan, Wang, Dong
Format:	Article
Language:	English
Subjects:	Anodes axial tuning Cathodes Coupling Couplings High power microwave Magnetic resonance Microwave theory and techniques multi-antenna output reentrant cavity Relativistic effects relativistic magnetron Resonant frequencies Tuning
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creator	Qin, Fen Zhang, Yong Xu, Sha Lei, Lu-rong Ju, Bin-quan Wang, Dong
description	A frequency-agile relativistic magnetron with axial tuning is presented. To achieve axial tuning, reentrant cavity which has two radial parts connected by a coupling hole had been introduced. Resonant frequency of this cavity configuration can be tuned by adjusting the axial length of each coupling hole without any variation of other parameters. Multi-antenna output technique had been integrated with the reentrant cavity chain to obtain high conversion efficiency in the whole tuning range. Simulation results showed that this tube had a tuning range between 1.23 GHz to 1.70 GHz, corresponding to relative bandwidth of 32% about a center frequency of 1.465 GHz. In this tuning range, the maximum output power is 1.81 GW at 1.605 GHz, corresponding to an efficiency of 54.5%. This axial tuning RM is a promising compact high power microwave source with wide tuning range.
doi_str_mv	10.1109/LED.2020.2984096
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To achieve axial tuning, reentrant cavity which has two radial parts connected by a coupling hole had been introduced. Resonant frequency of this cavity configuration can be tuned by adjusting the axial length of each coupling hole without any variation of other parameters. Multi-antenna output technique had been integrated with the reentrant cavity chain to obtain high conversion efficiency in the whole tuning range. Simulation results showed that this tube had a tuning range between 1.23 GHz to 1.70 GHz, corresponding to relative bandwidth of 32% about a center frequency of 1.465 GHz. In this tuning range, the maximum output power is 1.81 GW at 1.605 GHz, corresponding to an efficiency of 54.5%. 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(IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-2235-7057</orcidid><orcidid>https://orcid.org/0000-0002-0640-3754</orcidid></search><sort><creationdate>20200501</creationdate><title>A frequency-agile relativistic magnetron with axial tuning</title><author>Qin, Fen ; Zhang, Yong ; Xu, Sha ; Lei, Lu-rong ; Ju, Bin-quan ; Wang, Dong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c338t-143bf7a44c04727f1616c19f293439e17f507a8a361e10038ec8701266159b0a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Anodes</topic><topic>axial tuning</topic><topic>Cathodes</topic><topic>Coupling</topic><topic>Couplings</topic><topic>High power microwave</topic><topic>Magnetic resonance</topic><topic>Microwave theory and techniques</topic><topic>multi-antenna output</topic><topic>reentrant cavity</topic><topic>Relativistic effects</topic><topic>relativistic magnetron</topic><topic>Resonant frequencies</topic><topic>Tuning</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qin, Fen</creatorcontrib><creatorcontrib>Zhang, Yong</creatorcontrib><creatorcontrib>Xu, Sha</creatorcontrib><creatorcontrib>Lei, Lu-rong</creatorcontrib><creatorcontrib>Ju, Bin-quan</creatorcontrib><creatorcontrib>Wang, Dong</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library Online</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE electron device letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qin, Fen</au><au>Zhang, Yong</au><au>Xu, Sha</au><au>Lei, Lu-rong</au><au>Ju, Bin-quan</au><au>Wang, Dong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A frequency-agile relativistic magnetron with axial tuning</atitle><jtitle>IEEE electron device letters</jtitle><stitle>LED</stitle><date>2020-05-01</date><risdate>2020</risdate><volume>41</volume><issue>5</issue><spage>1</spage><epage>1</epage><pages>1-1</pages><issn>0741-3106</issn><eissn>1558-0563</eissn><coden>EDLEDZ</coden><abstract>A frequency-agile relativistic magnetron with axial tuning is presented. To achieve axial tuning, reentrant cavity which has two radial parts connected by a coupling hole had been introduced. Resonant frequency of this cavity configuration can be tuned by adjusting the axial length of each coupling hole without any variation of other parameters. Multi-antenna output technique had been integrated with the reentrant cavity chain to obtain high conversion efficiency in the whole tuning range. Simulation results showed that this tube had a tuning range between 1.23 GHz to 1.70 GHz, corresponding to relative bandwidth of 32% about a center frequency of 1.465 GHz. In this tuning range, the maximum output power is 1.81 GW at 1.605 GHz, corresponding to an efficiency of 54.5%. 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subjects	Anodes axial tuning Cathodes Coupling Couplings High power microwave Magnetic resonance Microwave theory and techniques multi-antenna output reentrant cavity Relativistic effects relativistic magnetron Resonant frequencies Tuning
title	A frequency-agile relativistic magnetron with axial tuning
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