Kawakami, E.Scarlino, PasqualeSchreiber, L. R.Prance, J. R.Savage, D. E.Lagally, M. G.Eriksson, M. A.Vandersypen, L. M. K.2021-03-262021-03-262021-03-262013-09-2310.1063/1.4821995https://infoscience.epfl.ch/handle/20.500.14299/176143We report transport measurements on a Si/SiGe quantum dot subject to microwave excitation via an on-chip antenna. The response shows signatures of photon-assisted tunneling and only a small effect on charge stability. We also explore the use of a d.c. current applied to the antenna for generating tunable, local magnetic field gradients and put bounds on the achievable field gradients, limited by heating of the reservoirs.text::journal::journal article::research article