Patent ID: 9722571
Date: 2017-08-01
CPC Classifications: H01F,H03H,H04B

Claim:
1. A power combiner for a radio frequency, RF, transmitter comprising: a first planar figure-8 shaped primary winding configured to support current flow in a figure-8 pattern; a second planar figure-8 shaped primary winding that with the first planar figure-8 shaped primary winding forms a figure-88 shaped primary winding, the second planar figure-8 shaped primary winding being configured to support current flow in a figure-8 pattern; a first planar figure-8 shaped secondary winding configured to support current flow in a figure-8 pattern; and a second planar figure-8 shaped secondary winding that with the first planar figure-8 shaped secondary winding forms a figure-88 shaped secondary winding, the second planar figure-8 shaped secondary winding being configured to support current flow in a figure-8 pattern; wherein, the figure 8 figure-88 shaped primary winding is substantially overlaid with the figure 8 figure-88 shaped secondary winding.