Zürcher, J. F.Mosig, J. R.Skrivervik, A. K.Xu, Q.Vaccaro, S.2006-11-302006-11-302006-11-302000https://infoscience.epfl.ch/handle/20.500.14299/237023Multi-frequency and multi-polarization N-port printed planar antennastext::journal::journal article::research article