[IEEE 15th Conference on Microwave Techniques COMITE 2010 - Brno, Czech Republic (2010.04.19-2010.04.21)] 15th Conference on Microwave Techniques COMITE 2010 - Measurement of extreme impedancesRandus, Martin; Hoffmann, Karel · 2010

[IEEE 2007 17th International Conference Radioelektronika - Brno, Czech Republic (2007.04.24-2007.04.25)] 2007 17th International Conference Radioelektronika - Broadband Medium-Power Transistor Amplifier 12-18 GHzRandus, Martin; Hoffmann, Karel · 2007

[IEEE 2007 70th ARFTG Microwave Measurement Conference (ARFTG) - Tempe, AZ (2007.11.29-2007.11.30)] 2007 70th ARFTG Microwave Measurement Conference (ARFTG) - A simple method for extreme impedances measurementRandus, Martin; Hoffmann, Karel · 2007

[IEEE 2008 72nd ARFTG Microwave Measurement Symposium - Portland, OR, USA (2008.12.9-2008.12.12)] 2008 72nd ARFTG Microwave Measurement Symposium - A simple method for extreme impedances measurement - experimental testingRandus, Martin; Hoffmann, Karel · 2008

[IEEE 2010 75th ARFTG Microwave Measurement Conference - Anaheim, CA, USA (2010.05.28-2010.05.28)] 75th ARFTG Microwave Measurement Conference - A novel method for direct impedance measurement in microwave and mm-wave bandsRandus, Martin; Hoffmann, Karel · 2010

[IEEE 2010 76th ARFTG Microwave Measurement Conference - Clearwater Beach, FL, USA (2010.11.30-2010.12.3)] 2010 76th ARFTG Microwave Measurement Conference - Calculation of maximal applicable gain for the generalized and the direct method for extreme impedances measurementRandus, Martin; Hoffmann, Karel · 2010

[IEEE 2007 70th ARFTG Microwave Measurement Conference (ARFTG) - Tempe, AZ (2007.11.29-2007.11.30)] 2007 70th ARFTG Microwave Measurement Conference (ARFTG) - Short-range detection and measurement of small high-speed objects in microwave frequency regionRandus, Martin; Hudec, Premysl; Hoffmann, Karel · 2007