US 2026/0066859 A1 · BALUN AND POWER AMPLIFIER CIRCUIT

Abstract

A balun includes a first wire including a first end connected to a first balanced line transmitting one of balanced signals and a second end connected to a first reference potential; a second wire including a first end connected to a second balanced line transmitting another one of the balanced signals and a second end connected to the first reference potential; a third wire that includes a first end and an open second end and is electromagnetically coupled to the first wire; a fourth wire that includes a first end connected to the first end of the third wire and a second end connected to an unbalanced line transmitting an unbalanced signal and is electromagnetically coupled to the second wire; a first capacitor connected in parallel with a part of the first wire; and a second capacitor connected in parallel with a part of the second wire.

Claims10

Dependent claims

A balun comprising:

a first wire having a first end connected to a first balanced line transmitting one of a set of balanced signals, and a second end connected to a first reference potential;
a second wire having a first end connected to a second balanced line transmitting another one of the set of balanced signals, and a second end connected to the first reference potential;
a third wire that has a first end and an open second end, and is electromagnetically coupled to the first wire;
a fourth wire that has a first end connected to the first end of the third wire, and a second end connected to an unbalanced line transmitting an unbalanced signal, and that is electromagnetically coupled to the second wire;
a first capacitor connected in parallel with a part of the first wire;
and
a second capacitor connected in parallel with a part of the second wire.

4 more elements

Dependencies are inferred from the claim text.

Balun and power amplifier circuit

Life of this patent

Balun and power amplifier circuit

Life of this patent

Abstract

Claims10