Patent ID: 7378919

Claim:
A planar microwave line comprising: a dielectric substrate; a planar arrangement of a first microstrip conductor and at least one additional microstrip conductor, in which a gap between the first microstrip conductor and the at least one additional microstrip conductor facilitates an electromagnetic coupling; a first region in which the microwave line has a first direction; a second region in which the microwave line has a second direction; and a transition region in which a change from the first direction to the second direction occurs, wherein a gap between adjacent edges of the first microstrip conductor and the additional microstrip conductor substantially and continuously varies in the transition region such that the adjacent edges of the first microstrip conductor and of the at least one additional microstrip conductor in the transition region are equal in length and such that the gap in the transition region periodically modulates around an average value, which corresponds to a gap in the first region and/or in the second region; and wherein the first microstrip conductor and the at least one additional microstrip conductor in the transition region run without crossing one another.