Inventor · disambiguated record
Charles M. Powell
Also filed as: POWELL CHARLES · POWELL CHARLES M
10 granted patents·1 pending application·123 citations·filing 1995–2017
88Inventor score
Technology areasH01Q
Files withRADIO FREQUENCY SYSTEMS INC11
Top patents by PatentIndex Score
11 records- 0174US6525696B2Dual band antenna using a single column of elliptical vivaldi notchesRADIO FREQUENCY SYSTEMS INC·Filed 2000·Granted Feb 25, 2003·31 cites·7 claims
- 0265US10541477B2Combined omnidirectional and directional antennasRADIO FREQUENCY SYSTEMS INC·Filed 2016·Granted Jan 21, 2020·1 cites·20 claims
- 0356US5818397ACircularly polarized horizontal beamwidth antenna having binary feed network with microstrip transmission lineRADIO FREQUENCY SYSTEMS INC·Filed 1995·Granted Oct 6, 1998·26 cites·7 claims
- 0452US11095044B2Combined omnidirectional and directional antennasRADIO FREQUENCY SYSTEMS INC·Filed 2017·Granted Aug 17, 2021·0 cites·6 claims
- 0552US9831547B2Methods and devices for configuring antenna arraysRADIO FREQUENCY SYSTEMS INC·Filed 2014·Granted Nov 28, 2017·0 cites·18 claims
- 0652US6133889ALog periodic dipole antenna having an interior centerfeed microstrip feedlineRADIO FREQUENCY SYSTEMS INC·Filed 1998·Granted Oct 17, 2000·20 cites·31 claims
- 0746US6243050B1Double-stacked hourglass log periodic dipole antennaRADIO FREQUENCY SYSTEMS INC·Filed 1998·Granted Jun 5, 2001·15 cites·10 claims
- 0845US6072432AHybrid power tapered/space tapered multi-beam antennaRADIO FREQUENCY SYSTEMS INC·Filed 1997·Granted Jun 6, 2000·20 cites·14 claims
- 0942US11387574B2Vertically and horizontally polarized omnidirectional antennas and related methodsRADIO FREQUENCY SYSTEMS INC·Filed 2013·Granted Jul 12, 2022·0 cites·8 claims
- 1041US2014375518A1Amplitude tapered switched beam antenna systemsRADIO FREQUENCY SYSTEMS INC·Filed 2013·Application pending·0 cites
- 1138US6353410B1Space tapered antenna having compressed spacing or feed network phase progression, or bothRADIO FREQUENCY SYSTEMS INC·Filed 1999·Granted Mar 5, 2002·10 cites·10 claims
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