Koen Buisman is Reader in microwave and mm-wave electronics at the Advanced Technology Institute (ATI) at the University of Surrey since 2020. He is Director of the Nonlinear Microwave Measurement and Modeling Laboratories (n3m labs). Prior to this, from 2004 to 2014, he was with the Delft Institute of Microsystems and Nanoelectronics, Delft University of Technology. In 2014, he joined the Chalmers University of Technology, Gothenburg, Sweden, as an Assistant Professor with the Microwave Electronics Laboratory, Department of Microtechnology and Nanoscience.
My qualifications
2011
PhD
Delft University of Technology
Research
Research interests
His current research interests include nonlinear device characterization, technology optimization, and multi-physics measurements.
Nonlinear Microwave Measurement and Modelling Laboratories (n3m-labs)
Publications
Highlights
O. A. Iupikov, J-R. Perez-Cisneros, P. Meyer, D. Åkesson, R. Maaskant, K. Buisman, R. Rehammar, C. Fager and M. V. Ivashina, "A Cavity-Backed Patch Antenna with Distributed Multi-Port Feeding, Enabling Efficient Integration with Doherty Power Amplifier and Band-Pass Filter," in IEEE Transactions on Antennas and Propagation, Jan. 2021, doi: 10.1109/TAP.2020.3048529.
P. Taghikhani, K. Buisman and C. Fager, "Hybrid Beamforming Transmitter Modeling for Millimeter-Wave MIMO Applications," in IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 11, pp. 4740-4752, Nov. 2020, doi: 10.1109/TMTT.2020.2995657.
W. Hallberg, D. Nopchinda, C. Fager and K. Buisman, "Emulation of Doherty Amplifiers Using Single- Amplifier Load–Pull Measurements," in IEEE Microwave and Wireless Components Letters, vol. 30, no. 1, pp. 47-49, Jan. 2020, doi: 10.1109/LMWC.2019.2955065.
D. Nopchinda, T. Eriksson, H. Zirath and K. Buisman, "Measurement of Reflection and Transmission Coefficients Using Finite Impulse Response Least-Squares Estimation," in IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 1, pp. 222-235, Jan. 2020, doi: 10.1109/TMTT.2019.2947517.
D. Nopchinda and K. Buisman, "Measurement Technique to Emulate Signal Coupling Between Power Amplifiers," in IEEE Transactions on Microwave Theory and Techniques, vol. 66, no. 4, pp. 2034-2046, April 2018, doi: 10.1109/TMTT.2017.2786274.
M. Abdulaziz, V. Hunerli, K. Buisman and C. Fager, “Improvement of AM-PM in a 33 GHz CMOS SOI power amplifier using PMOS neutralization,” in IEEE Microwave and Wireless Components letters, Oct. 2019.
O. A. Lupikov, W. Hallberg, R. Maaskant, C. Fager, R. Rehammar, K. Buisman and M. V. Ivashina, “A dual-fed PIFA antenna element with non- symmetric impedance matrix for high-efficiency doherty transmitters: integrated design and OTA-characterization,” in IEEE Transactions on Antennas and Propagation, Jan. 2020.
W. Hallberg, M. Ozen, D. Kuylenstierna, K. Buisman and C. Fager, “A generalized 3-dB wilkinson power divider/combiner with complex terminations,” in IEEE Trans. Microwave Theory Tech., vol. 66, no. 10, pp. 4497- 4506, Oct. 2018.
C. Sanchez-Perez, C. M. Andersson, K. Buisman, D. Kuylenstierna, N. Rorsman and C. Fager, “Design and large-signal characterization of high-power varactor-based impedance tuners,” in IEEE Trans. Microwave Theory Tech., vol. 66, no. 4, pp. 1744-1753, April 2018.
B. Makki, T. Svensson, K. Buisman, J. Perez and M. Alouini, “Wireless energy and information transmission in FSO and RF-FSO links,” in IEEE Wireless communication letters, IEEE WCL., vol. 7, no. 1, pp. 90-93, Feb. 2018.
W. Hallberg, M. Ozen, D. Gustafsson, K. Buisman, and C. Fager, “A doherty power amplifier design method for improved efficiency and linearity,” IEEE Trans. Microwave Theory Tech., vol. 64, no. 12, pp. 4491–4504, Dec. 2016.
C. Huang, K. Buisman, P. J. Zampardi, L. E. Larson, and L. C. N. de Vreede, “On the compression and blocking distortion of semiconductor-based varactors,” IEEE Trans. Microwave Theory Tech., vol. 60, no. 12, pp. 3699– 3709, Dec. 2012.
K. Buisman, C. Huang, P. J. Zampardi, and L. C. N. de Vreede, “RF power insensitive varactors,” IEEE Microwave and Wireless Components letters, vol. 22, no. 08, pp. 418–420, Aug. 2012.
M. Hajian, B. Kuijpers, K. Buisman, A. Akhnoukh, M. Pelk, L. C. N. de Vreede, J. Zijdeveld, L. P. Ligthart and C. Spitas, “Passive and active reconfigurable scan-beam hollow patch reflectarray antennas,” ISRN Communications and Networking, vol. 2012, Jan. 2012.
B. Yang, A. G. Yarovoy, A. S. E. Valavan, K. Buisman, and O. Shoykhet- brod, “A Novel LTCC Differentially-Fed UWB Antenna for the 60 GHz band,” International Journal of Microwave and Wireless Technologies, vol. 3, no. 02, pp. 171–177, Apr. 2011.
C. Huang, P. J. Zampardi, K. Buisman, C. Cismaru, M. Sun, K. Stevens, J. Fu, M. Marchetti and L. C. N. de Vreede, “A GaAs junction varactor with a continuously tunable range of 9 : 1 and an OIP3 of 57 dBm,” IEEE Electron Device Letters, vol. 31, no. 2, pp. 108–110, Feb. 2010.
L. K. Nanver, H. Schellevis, T. L. M. Scholtes, L. La Spina, G. Lorito, F. Sarubbi, V. Gonda, M. Popadic, K. Buisman, L. C. N. de Vreede, C. Huang, S. Milosavljevi ́c and E. J. G. Goudena, “Improved RF devices for future adaptive wireless systems using two-sided contacting and AlN cooling,” IEEE J. Solid-State Circuits, vol. 44, no. 9, pp. 2322–2338, Sept. 2009.
W. Lu, J. Xu, C. Huang, K. Buisman and L. C. N. de Vreede, “Adaptive matching network for antenna mismatch correction,” Journal of Fudan University(Natural Science), no. 4, pp. 451–454, Aug. 2009.
M. Hajian, B. Kuijpers, K. Buisman, A. Akhnoukh, M. Plek [sic], L. C. N. de Vreede, J. Zijdeveld and L. P. Ligthart, “Reconfigurable scan-beam hollow patch reflectarray antenna loaded with tunable capacitor,” Microwave and Optical Technology Letters, vol. 51, no. 2, pp. 367–374, Feb. 2009.
C. Huang, K. Buisman, M. Marchetti, L. K. Nanver, F. Sarubbi, M. Popadic, T. L. M. Scholtes, H. Schellevis, L. E. Larson and L. C. N. de Vreede, “Ultra linear low–loss varactor diode configurations for adaptive RF systems,” IEEE Trans. Microwave Theory Tech., vol. 57, no. 1, pp. 205–215, Jan. 2009.
M. Marchetti, M. J. Pelk, K. Buisman, W. C. E. Neo, M. Spirito and L. C. N. de Vreede, “Active harmonic load–pull with realistic wideband communications signals,” IEEE Trans. Microwave Theory Tech., vol. 56, no. 12, pp. 2979–2988, Dec. 2008.
C. Huang, K. Buisman, L. K. Nanver, F. Sarubbi, M. Popadic, T. L. M. Scholtes, H. Schellevis, L. E. Larson and L. C. N. de Vreede,“A 67 dBm multistacked junction varactor,” IEEE Microwave and Wireless Components letters, vol. 18, no. 11, pp. 749–751, Nov. 2008.
C. Huang, L. C. N. de Vreede, F. Sarubbi, M. Popadic, K. Buisman, J. H. Qureshi, M. Marchetti, A. Akhnoukh, T. L. M. Scholtes, L. E. Larson and L. K. Nanver, “Enabling low–distortion varactors for adaptive transmitters,” IEEE Trans. Microwave Theory Tech., vol. 56, no. 5, pp. 1149–1163, May. 2008.
K. Buisman, L. C. N. de Vreede, L. E. Larson, M. Spirito, A. Akhnoukh, Y. Lin, X-d. Liu and L. K. Nanver,“A monolithic low–distortion low–loss silicon–on–glass varactor–tuned filter with optimized biasing,” IEEE Mi- crowave and Wireless Components letters, vol. 17, no. 1, pp. 58–60, Jan. 2007.
W. C. E. Neo, Y. Lin, X.-d. Liu, L. C. N. de Vreede, L. E. Larson, M. Spirito, M. J. Pelk, K. Buisman, A. Akhnoukh, A. de Graauw and L. K. Nanver, “Adaptive multi–band multi–mode power amplifier using integrated varactor–based tunable matching networks,” IEEE J. Solid-State Circuits, vol. 41, no. 9, pp. 2166–2176, Sept. 2006.
