| 8058768 |
Bulk acoustic wave resonator device |
Frederik W. M. VanHelmont, Andreas B. M. Jansman, Jaap Ruigrok, Hans-Peter Loebl |
2011-11-15 |
| 8008993 |
Thin-film bulk-acoustic wave (BAW) resonators |
Frederik Willem Maurits Vanhelmont, Andreas Bernardus Maria Jansman, Jaap Ruigrok, Hans-Peter Loebl |
2011-08-30 |
| 7580727 |
High frequency module |
Kevin Boyle, Antonius J.M. De Graauw |
2009-08-25 |
| 7522018 |
Electro-acoustic resonator with a top electrode layer thinner than a bottom electrode layer |
Hans-Peter Löbl |
2009-04-21 |
| 7474174 |
Ladder-type thin-film bulk acoustic wave filter |
Hans-Peter Löbl |
2009-01-06 |
| 7466213 |
Resonator structure and method of producing it |
Hans-Peter Löbl, Christof Metzmacher |
2008-12-16 |
| 7459990 |
Arrangement with two piezoelectric layers, and method of operating a filter device |
Olaf Wunnicke, Hans-Peter Loebl, Mareike Klee |
2008-12-02 |
| 7248132 |
Filter structure |
Hans-Peter Löbl |
2007-07-24 |
| 7119637 |
Filter system comprising a bulk acoustic wave resonator |
Hans-Peter Loebl, Mareike Klee, Christof Metzmacher, Wolfgang Brand |
2006-10-10 |
| 6975182 |
Filter system with bulk wave resonator having a reflection layer composition that varies with the layer thickness |
Hans-Peter Loebl, Mareike Klee, Christof Metzmacher, Wolfgang Brand |
2005-12-13 |
| 6653913 |
Tunable piezoelectric filter arrangement using a dielectric material with a voltage-dependent dielectric constant |
Mareike Klee, Hans-Peter Löbl, Rainer Kiewitt, Uwe Mackens, Martinus Hermanus Wilhelmus Maria Van Delden +2 more |
2003-11-25 |
| 6583688 |
Tunable filter arrangement comprising resonators with reflection layers |
Mareike Klee, Hans-Peter Löbl, Rainer Kiewitt, Uwe Mackens, Martinus Hermanus Wilhelmus Maria Van Delden +2 more |
2003-06-24 |
| 6509814 |
Bulk acoustic wave filter with optimized series and shunt resonator static capacitances |
— |
2003-01-21 |
| 6448695 |
Bulk acoustic wave device |
— |
2002-09-10 |
| 6314389 |
Time-domain circuit modeller |
— |
2001-11-06 |
| 6031986 |
Thin-film passive circuit simulation on basis of reduced equivalent circuits |
— |
2000-02-29 |
| 5625578 |
PCB simulation on basis of reduced equivalent circuit |
Rene Du Cloux, Godefridus P. J. F. M. Maas, Arthur Johannes Hubertus Wachters, Kevin J. Scott |
1997-04-29 |
| 5394346 |
Simulation of an electronic system including analog and digital circuitry using high level macro models |
— |
1995-02-28 |
| 4727275 |
Acoustic surface wave device |
— |
1988-02-23 |
| 4583063 |
Piezo-electric resonator or filter having slots formed which impede undesired vibrational energy |
— |
1986-04-15 |
| 4513262 |
Acoustic surface wave device |
John Schofield |
1985-04-23 |
| 4511866 |
Acoustic surface wave device |
— |
1985-04-16 |
| 4409571 |
Surface acoustic wave filters |
Robert J. Murray, Ian W. Flinn |
1983-10-11 |
