The invention describes a broadband matching network for coupling to an output of an amplifying device for amplifiers with a nominal operating frequency between 1 MHz and 100 MHz. The broadband matching network comprises a planar transformer with a primary winding arranged on a primary side of the broadband matching network and a secondary winding arranged on a secondary side of the broadband matching network. The primary winding is arranged to be electrically connected to the output of the amplifying device. The broadband matching network is characterized by a center frequency and a bandwidth with a frequency range of at least +/−3%. A first parallel resonance frequency and a second parallel resonance frequency of the broadband matching circuit are arranged around the series resonance frequency such that a frequency dependence of a load impedance provided by the broadband matching network for the amplifying device is reduced.