Patent ID: 8570116

Claim:
A combiner/divider comprising: a circuit ground; a first transmission line including a first conductor having a first end forming a first unbalanced-signal port relative to the circuit ground, and a second conductor inductively coupled to the first conductor, the second conductor having a first end directly connected to the circuit ground; a second transmission line including a third conductor and a fourth conductor inductively coupled to the third conductor, the third conductor having a first end directly connected to a second end of the first conductor and a second end forming a first balanced-signal port; a third transmission line including a fifth conductor and a sixth conductor inductively coupled to the fifth conductor, the fifth conductor having a first end directly connected to the second end of the first conductor and a second end connected to the first balanced-signal port; a fourth transmission line having a seventh conductor and an eighth conductor inductively coupled to the seventh conductor, the seventh conductor having a first end directly connected to a second end of the second conductor and a second end forming a second balanced-signal port; and a fifth transmission line having a ninth conductor and a tenth conductor inductively coupled to the ninth conductor, the ninth conductor having a first end directly connected to the second end of the second conductor and a second end directly connected to the second balanced-signal port; the fourth, sixth, eighth, and tenth conductors having respective first ends directly connected together and respective second ends directly connected together.