Inventor · disambiguated record
Yongfei Zhu
Also filed as: ZHU YONGFEI
32 granted patents·7 pending applications·3,440 citations·filing 1995–2018
98Inventor score
Top patents by PatentIndex Score
39 records- 0199US6531936B1Voltage tunable varactors and tunable devices including such varactorsPARATEK MICROWAVE INC·Filed 1999·Granted Mar 11, 2003·299 cites·7 claims
- 0299US6404614B1Voltage tuned dielectric varactors with bottom electrodesPARATEK MICROWAVE INC·Filed 2001·Granted Jun 11, 2002·271 cites·12 claims
- 0399US6377142B1Voltage tunable laminated dielectric materials for microwave applicationsPARATEK MICROWAVE INC·Filed 1999·Granted Apr 23, 2002·278 cites·19 claims
- 0499US6377217B1Serially-fed phased array antennas with dielectric phase shiftersPARATEK MICROWAVE INC·Filed 2000·Granted Apr 23, 2002·427 cites·22 claims
- 0598US8957742B2Methods for tuning an adaptive impedance matching network with a look-up tableBLACKBERRY LTD·Filed 2013·Granted Feb 17, 2015·59 cites·12 claims
- 0698US6597265B2Hybrid resonator microstrip line filtersPARATEK MICROWAVE INC·Filed 2001·Granted Jul 22, 2003·258 cites·14 claims
- 0798US6525630B1Microstrip tunable filters tuned by dielectric varactorsPARATEK MICROWAVE INC·Filed 2000·Granted Feb 25, 2003·313 cites·16 claims
- 0898US6377440B1Dielectric varactors with offset two-layer electrodesPARATEK MICROWAVE INC·Filed 2000·Granted Apr 23, 2002·286 cites·16 claims
- 0997US9698758B2Methods for tuning an adaptive impedance matching network with a look-up tableBLACKBERRY LTD·Filed 2015·Granted Jul 4, 2017·22 cites·20 claims
- 1097US8674783B2Methods for tuning an adaptive impedance matching network with a look-up tableRESEARCH IN MOTION RF INC·Filed 2013·Granted Mar 18, 2014·55 cites·18 claims
- 1197US8421548B2Methods for tuning an adaptive impedance matching network with a look-up tableSPEARS JOHN H·Filed 2011·Granted Apr 16, 2013·72 cites·15 claims
- 1297US8072285B2Methods for tuning an adaptive impedance matching network with a look-up tableSPEARS JOHN H·Filed 2008·Granted Dec 6, 2011·104 cites·12 claims
- 1397US6686817B2Electronic tunable filters with dielectric varactorsPARATEK MICROWAVE INC·Filed 2000·Granted Feb 3, 2004·91 cites·18 claims
- 1497US6556102B1RF/microwave tunable delay linePARATEK MICROWAVE INC·Filed 2000·Granted Apr 29, 2003·263 cites·32 claims
- 1595US7145415B2Electrically tunable filters with dielectric varactorsPARATEK MICROWAVE INC·Filed 2004·Granted Dec 5, 2006·39 cites·13 claims
- 1695US6801104B2Electronically tunable combline filters tuned by tunable dielectric capacitorsPARATEK MICROWAVE INC·Filed 2001·Granted Oct 5, 2004·81 cites·8 claims
- 1795US6801102B2Tunable filters having variable bandwidth and variable delayPARATEK MICROWAVE INC·Filed 2002·Granted Oct 5, 2004·58 cites·16 claims
- 1895US6683516B2Voltage tunable laminated dielectric materials for microwave applications such as a tunable cavityPARATEK MICROWAVE INC·Filed 2002·Granted Jan 27, 2004·37 cites·8 claims
- 1990US6876279B2Voltage tunable laminated dielectric materials for a coplanor waveguidePARATEK MICROWAVE INC·Filed 2002·Granted Apr 5, 2005·35 cites·9 claims
- 2090US6717491B2Hairpin microstrip line electrically tunable filtersPARATEK MICROWAVE INC·Filed 2002·Granted Apr 6, 2004·33 cites·17 claims
- 2189US6727535B1Ferroelectric varactor with built-in DC blocksPARATEK MICROWAVE INC·Filed 1999·Granted Apr 27, 2004·84 cites·8 claims
- 2289US6686814B2Voltage tunable varactors and tunable devices including such varactorsPARATEK MICROWAVE INC·Filed 2002·Granted Feb 3, 2004·24 cites·9 claims
- 2388US5527567AMetalorganic chemical vapor deposition of layered structure oxidesCERAM INC·Filed 1995·Granted Jun 18, 1996·97 cites·37 claims
- 2487US6864840B2Serially-fed phased array antennas with dielectric phase shiftersPARATEK MICROWAVE INC·Filed 2002·Granted Mar 8, 2005·44 cites·20 claims
- 2586US8395459B2Methods for tuning an adaptive impedance matching network with a look-up tableSPEARS JOHN H·Filed 2012·Granted Mar 12, 2013·6 cites·20 claims
- 2686US6903633B2Electronic tunable filters with dielectric varactorsPARATEK MICROWAVE INC·Filed 2003·Granted Jun 7, 2005·19 cites·26 claims
- 2784US7034636B2Tunable filters having variable bandwidth and variable delayPARATEK MICROWAVE INC·Filed 2004·Granted Apr 25, 2006·20 cites·21 claims
- 2884US6710679B2Analog rat-race phase shifters tuned by dielectric varactorsPARATEK MICROWAVE INC·Filed 2001·Granted Mar 23, 2004·20 cites·2 claims
- 2983US6794960B2Voltage tunable laminated dielectric materials for microwave waveguide applicationsPARATEK MICROWAVE INC·Filed 2002·Granted Sep 21, 2004·20 cites·7 claims
- 3077US6683517B2Voltage tunable laminated dielectric materials for microwave applications such as a coaxial cablePARATEK MICROWAVE INC·Filed 2002·Granted Jan 27, 2004·20 cites·8 claims
- 3168US9847807B2Wide band antenna systemsBLACKBERRY LTD·Filed 2015·Granted Dec 19, 2017·2 cites·20 claims
- 3258US7154357B2Voltage tunable reflective coplanar phase shiftersPARATEK MICROWAVE INC·Filed 2004·Granted Dec 26, 2006·3 cites·8 claims
- 3342US2019068544A1Communications Method and Apparatus for Virtual Extensible Local Area NetworkHUAWEI TECH CO LTD·Filed 2018·Application pending·0 cites
- 3440US2005116796A1Electronically tunable combline filters tuned by tunable dielectric capacitorsFiled 2004·Application pending·0 cites
- 3540US2018131619A1Load Balancing Method and Related ApparatusHUAWEI TECH CO LTD·Filed 2018·Application pending·0 cites
- 3635US2005200422A1Tunable filters having variable bandwidth and variable delayFiled 2005·Application pending·0 cites
- 3731US2002186099A1Electrically tunable filters with dielectric varactorsFiled 1999·Application pending·0 cites
- 3825US2006006966A1Electronically tunable ridged waveguide cavity filter and method of manufacture thereforeKANG QINGHUA·Filed 2005·Application pending·0 cites
- 3920US2006033593A1Method and apparatus with improved varactor quality factorKANG QINGHUA·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →