Assignee
RADIO FREQUENCY SYSTEMS INC
US·103 granted patents·6 pending applications·2,949 citations·filing 1989–2017
Top patents by PatentIndex Score
109 records- 0198US6019635ACoaxial cable connector assemblyRADIO FREQUENCY SYSTEMS INC·Filed 1998·Granted Feb 1, 2000·185 cites·11 claims
- 0298US5938474AConnector assembly for a coaxial cableRADIO FREQUENCY SYSTEMS INC·Filed 1997·Granted Aug 17, 1999·168 cites·9 claims
- 0394US5766037AConnector for a radio frequency cableRADIO FREQUENCY SYSTEMS INC·Filed 1996·Granted Jun 16, 1998·87 cites·9 claims
- 0493US6600394B1Turnable, temperature stable dielectric loaded cavity resonator and filterRADIO FREQUENCY SYSTEMS INC·Filed 2000·Granted Jul 29, 2003·59 cites·10 claims
- 0593US6386915B1One step connectorRADIO FREQUENCY SYSTEMS INC·Filed 2000·Granted May 14, 2002·109 cites·29 claims
- 0692US6310579B1Method and apparatus for calibrating antenna apparatus and testing an antenna connected theretoRADIO FREQUENCY SYSTEMS INC·Filed 2000·Granted Oct 30, 2001·53 cites·1 claims
- 0791US6853271B2Triple-mode mono-block filter assemblyRADIO FREQUENCY SYSTEMS INC·Filed 2001·Granted Feb 8, 2005·36 cites·27 claims
- 0891US6806791B1Tunable microwave multiplexerRADIO FREQUENCY SYSTEMS INC·Filed 2000·Granted Oct 19, 2004·38 cites·52 claims
- 0990US6954122B2Hybrid triple-mode ceramic/metallic coaxial filter assemblyRADIO FREQUENCY SYSTEMS INC·Filed 2003·Granted Oct 11, 2005·30 cites·12 claims
- 1089US5455537AFeed forward amplifierRADIO FREQUENCY SYSTEMS INC·Filed 1994·Granted Oct 3, 1995·67 cites·14 claims
- 1188US6239744B1Remote tilt antenna systemRADIO FREQUENCY SYSTEMS INC·Filed 1999·Granted May 29, 2001·82 cites·48 claims
- 1287US6926555B2Tuned radio frequency coaxial connectorRADIO FREQUENCY SYSTEMS INC·Filed 2003·Granted Aug 9, 2005·40 cites·21 claims
- 1387US5274391ABroadband directional antenna having binary feed network with microstrip transmission lineRADIO FREQUENCY SYSTEMS INC·Filed 1990·Granted Dec 28, 1993·83 cites·15 claims
- 1487US5079562AMultiband antennaRADIO FREQUENCY SYSTEMS INC·Filed 1990·Granted Jan 7, 1992·91 cites·12 claims
- 1586US6268946B1Apparatus for communicating diversity signals over a transmission mediumRADIO FREQUENCY SYSTEMS INC·Filed 1998·Granted Jul 31, 2001·118 cites·8 claims
- 1686US6043785ABroadband fixed-radius slot antenna arrangementRADIO FREQUENCY SYSTEMS INC·Filed 1998·Granted Mar 28, 2000·82 cites·15 claims
- 1785US6310585B1Isolation improvement mechanism for dual polarization scanning antennasRADIO FREQUENCY SYSTEMS INC·Filed 1999·Granted Oct 30, 2001·81 cites·20 claims
- 1884US9300408B2Methods and systems for calibrating LTE antenna systemsRADIO FREQUENCY SYSTEMS INC·Filed 2013·Granted Mar 29, 2016·10 cites·20 claims
- 1982US5798675AContinuously variable phase-shifter for electrically down-tilting an antennaRADIO FREQUENCY SYSTEMS INC·Filed 1997·Granted Aug 25, 1998·69 cites·5 claims
- 2082US5021755AN-way signal splitter with isolated outputsRADIO FREQUENCY SYSTEMS INC·Filed 1989·Granted Jun 4, 1991·51 cites·14 claims
- 2181US6081175ACoupling structure for coupling cavity resonatorsRADIO FREQUENCY SYSTEMS INC·Filed 1998·Granted Jun 27, 2000·41 cites·9 claims
- 2280US9325043B2Phase shifting circuit including an elongated conductive path covered by a metal sheet having stand-off feet and also including a slidable tuning memberRADIO FREQUENCY SYSTEMS INC·Filed 2013·Granted Apr 26, 2016·6 cites·19 claims
- 2379US7755456B2Triple-mode cavity filter having a metallic resonatorRADIO FREQUENCY SYSTEMS INC·Filed 2008·Granted Jul 13, 2010·12 cites·15 claims
- 2479US5650758APipelined digital predistorter for a wideband amplifierRADIO FREQUENCY SYSTEMS INC·Filed 1995·Granted Jul 22, 1997·58 cites·11 claims
- 2579US5545059AConnector for a hollow center conductor of a radio frequency cableRADIO FREQUENCY SYSTEMS INC·Filed 1995·Granted Aug 13, 1996·39 cites·12 claims
- 2678US6141539AIsolation improvement circuit for a dual-polarization antennaRADIO FREQUENCY SYSTEMS INC·Filed 1999·Granted Oct 31, 2000·54 cites·14 claims
- 2778US5439398ATransistor mounting clamp assemblyRADIO FREQUENCY SYSTEMS INC·Filed 1992·Granted Aug 8, 1995·50 cites·38 claims
- 2877US7777598B2Dielectric combine cavity filter having ceramic resonator rods suspended by polymer wedge mounting structuresRADIO FREQUENCY SYSTEMS INC·Filed 2008·Granted Aug 17, 2010·9 cites·10 claims
- 2976US6836198B2Adjustable capacitive coupling structureRADIO FREQUENCY SYSTEMS INC·Filed 2001·Granted Dec 28, 2004·15 cites·17 claims
- 3076US6747606B2Single or dual polarized molded dipole antenna having integrated feed structureRADIO FREQUENCY SYSTEMS INC·Filed 2002·Granted Jun 8, 2004·40 cites·19 claims
- 3176US6637101B2Coaxial cable preparation toolRADIO FREQUENCY SYSTEMS INC·Filed 2001·Granted Oct 28, 2003·33 cites·41 claims
- 3276US6624722B2Coplanar directional coupler for hybrid geometryRADIO FREQUENCY SYSTEMS INC·Filed 2001·Granted Sep 23, 2003·12 cites·25 claims
- 3375US6381212B1Power sharing amplifier system for amplifying multiple input signals with shared power amplifiersRADIO FREQUENCY SYSTEMS INC·Filed 1998·Granted Apr 30, 2002·40 cites·17 claims
- 3475US6006113ARadio signal scanning and targeting system for use in land mobile radio base sitesRADIO FREQUENCY SYSTEMS INC·Filed 1996·Granted Dec 21, 1999·52 cites·24 claims
- 3575US5589843AAntenna system with tapered aperture antenna and microstrip phase shifting feed networkRADIO FREQUENCY SYSTEMS INC·Filed 1994·Granted Dec 31, 1996·51 cites·15 claims
- 3675US5454735ASeverable radio frequency coaxial cable connectors having minimal signal degradationRADIO FREQUENCY SYSTEMS INC·Filed 1994·Granted Oct 3, 1995·37 cites·4 claims
- 3774US9240261B2Multi-conductor cables with spacers for conductorsRADIO FREQUENCY SYSTEMS INC·Filed 2013·Granted Jan 19, 2016·3 cites·18 claims
- 3874US6525696B2Dual band antenna using a single column of elliptical vivaldi notchesRADIO FREQUENCY SYSTEMS INC·Filed 2000·Granted Feb 25, 2003·31 cites·7 claims
- 3973US9627740B2RF notch filters and related methodsRADIO FREQUENCY SYSTEMS INC·Filed 2015·Granted Apr 18, 2017·2 cites·17 claims
- 4073US5936590AAntenna system having a plurality of dipole antennas configured from one piece of materialRADIO FREQUENCY SYSTEMS INC·Filed 1993·Granted Aug 10, 1999·64 cites·24 claims
- 4173US5481272ACircularly polarized microcell antennaRADIO FREQUENCY SYSTEMS INC·Filed 1995·Granted Jan 2, 1996·51 cites·20 claims
- 4272US5373270AMulti-cavity dielectric filterRADIO FREQUENCY SYSTEMS INC·Filed 1993·Granted Dec 13, 1994·27 cites·23 claims
- 4371US6677896B2Remote tilt antenna systemRADIO FREQUENCY SYSTEMS INC·Filed 2001·Granted Jan 13, 2004·19 cites·32 claims
- 4471US5023579AIntegrated bandpass/lowpass filterRADIO FREQUENCY SYSTEMS INC·Filed 1990·Granted Jun 11, 1991·32 cites·30 claims
- 4570US9843087B2Methods and devices for protecting antenna components from contaminantsRADIO FREQUENCY SYSTEMS INC·Filed 2017·Granted Dec 12, 2017·1 cites·15 claims
- 4670US5262742AHalf-wave folded cross-coupled filterRADIO FREQUENCY SYSTEMS INC·Filed 1992·Granted Nov 16, 1993·24 cites·15 claims
- 4769US9960474B2Unitary antenna dipoles and related methodsRADIO FREQUENCY SYSTEMS INC·Filed 2013·Granted May 1, 2018·3 cites·17 claims
- 4869US6052605AContinuous interference assessment and avoidance in a land mobile radio systemRADIO FREQUENCY SYSTEMS INC·Filed 1997·Granted Apr 18, 2000·61 cites·15 claims
- 4968US6685383B2Antenna and radio interfaceRADIO FREQUENCY SYSTEMS INC·Filed 2001·Granted Feb 3, 2004·16 cites·28 claims
- 5067US7915978B2Compact tunable dual band stop filterRADIO FREQUENCY SYSTEMS INC·Filed 2009·Granted Mar 29, 2011·4 cites·20 claims
Showing the top 50 of 109 patent records by PatentIndex Score.
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