Transformer device of balanced impedance matching

A transformer device, comprising:

• a magnetic core having a coil section;
• a first flange at a first end of the coil section having outer electrodes including a first electrode and a fourth electrode and inner electrodes including a second electrode and a third electrode, where the inner electrodes are positioned between the outer electrodes, and the outer electrodes are positioned at a distance relative to an outer side of the first flange and therefore closer to the coil section than the inner electrodes;
• a second flange at a second end of the coil section opposite to the first end having outer electrodes including a fifth electrode and an eighth electrode and inner electrodes including a sixth electrode and a seventh electrode, where the inner electrodes are positioned between the outer electrodes, and the outer electrodes are positioned at a distance relative to an outer side of the second flange and therefore closer to the coil section than the inner electrodes;
• a plurality of windings around the coil section arranged into a first layer of winding and a second layer of winding, where each winding has a first end and a second end, the first end is connected to an electrode on the first flange, and the second end is connected an electrode on the second flange;
• and
• two center taps, each having an end connected to an electrode on the first flange and another end connected to an electrode on the second flange;
• wherein the outer electrodes on the first flange have equal length and width to those of the inner electrodes on the first flange;
• and the outer electrodes on the second flange have equal length and width to those of the inner electrodes on the second flange.