Meyne, NoraNoraMeyneJacob, Arne F.Arne F.Jacob2021-01-122021-01-122012-10European Microwave Conference (EuMC 2012)http://hdl.handle.net/11420/8388Measurements performed with a 3.1 GHz substrate integrated near-field sensor on aqueous solutions are reported. The samples include Chinese hamster ovary (CHO) cells in a culture medium as a representative and easily reproducible biological environment. The permittivity contrast between the cells and the surrounding medium is estimated based on perturbation theory. The resolution and sensitivity required for a device capable of single cell measurements at microwave frequencies are discussed based on these results.enAllgemeines, WissenschaftConference Paper10.23919/eumc.2012.6459197Other