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Brevets

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Brevet citant Date de dépôt Date de délivrance Cessionnaire d'origine Titre
US404575020 mai 197630 août 1977Xerox CorporationElectrical cable and coupling arrangement
US416021030 août 19773 juil. 1979RCA CorporationPrinted circuit impedance transformation network with an integral spark gap
US424005212 oct. 197916 déc. 1980Rockwell International CorporationBalun filter apparatus
US449550510 mai 198322 janv. 1985The United States of America as represented by the Secretary of the Air ForcePrinted circuit balun with a dipole antenna
US487198813 juin 19883 oct. 1989Microwave transmission line of the symmetrical type and with two coplanar conductors
US51481307 juin 199015 sept. 1992Wideband microstrip UHF balun
US52968234 sept. 199222 mars 1994Wideband transmission line balun
US556588111 mars 199415 oct. 1996Motorola, Inc.Balun apparatus including impedance transformer having transformation length
US580851829 oct. 199615 sept. 1998Northrop Grumman CorporationPrinted guanella 1:4 balun
US627834011 mai 199921 août 2001Industrial Technology Research InstituteMiniaturized broadband balun transformer having broadside coupled lines
US648339712 avr. 200119 nov. 2002Raytheon CompanyTandem six port 3:1 divider combiner
US652909015 mai 20014 mars 2003Lockheed Martin CorporationTwo-sided printed circuit anti-symmetric balun
US687322130 avr. 200329 mars 2005Motorola, Inc.Multilayer balun with high process tolerance
US69850551 avr. 200310 janv. 2006Kabushiki Kaisha ToshibaTransmission line comprised of interconnected parallel line segments
US760567323 mai 200720 oct. 2009Coherent, Inc.Transformer for impedance-matching power output of RF amplifier to gas-laser discharge
US772448429 déc. 200625 mai 2010Ultra broadband 10-W CW integrated limiter