Low-loss electrical component with an amplifier

1. An electrical component comprising:

an amplifier comprising an output stage;

a power-supply path for powering the output stage, the power supply path comprising a line comprising conductor track sections connected in parallel;

a carrier substrate containing the amplifier and the line, the line being buried, at least partially, in the carrier substrate; and

a low-pass filter that is in the carrier substrate and that is electrically connected to a path that receives an output of the amplifier, the low-pass filter comprising series oscillating circuits, each of the series oscillating circuits comprising a capacitor and an inductor in a shunt arm;

wherein values of a capacitor and an inductor of a first one of the series oscillating circuits are such that a resonance frequency of the first one of the series oscillating circuits corresponds to a frequency of a first harmonic of a signal of the amplifier;

wherein values of a capacitor and an inductor of a second one of the series oscillating circuits are such that a resonance frequency of the second one of the series oscillating circuits corresponds to a frequency of a second harmonic of the signal of the amplifier; and

wherein lengths of the conductor track sections are such that the line has a lower impedance for a direct-current signal and a higher impedance for a high-frequency signal at an operating frequency of the amplifier.

2. The electrical component of claim 1 , wherein the line comprises a λ/4 line at an operating frequency of the amplifier.

3. The electrical component of claim 1 , wherein the carrier substrate comprises:

at least three metallization planes; and

dielectric layers among the at least three metallization planes.

4. The electrical component of claim 3 , wherein conductor track sections of the line are in separate metallization planes and corresponding ends of the conductor track sections are interconnected using via contacts.

5. The electrical component of claim 1 , wherein the conductor track sections have meander-like shapes.

6. The electrical component of claim 1 , further comprising a capacitor between the line and ground.

7. The electrical component of claim 6 , wherein the capacitor is part of a chip that is mounted on the carrier substrate.

8. The electrical component of claim 1 , wherein circuit elements of the low-pass filter comprise conductor sections in metallization planes of the carrier substrate.

9. The electrical component of claim 1 , wherein the carrier substrate comprises dielectric layers comprised of ceramic.

10. The electrical component of claim 1 , further comprising a bandpass filter mounted on the carrier substrate.

11. The electrical component of claim 1 , further comprising a bandpass filter associated with the carrier substrate.

12. The electrical component of claim 1 , further comprising a changeover switch mounted on the carrier substrate.

13. The electrical component of claim 1 , which is configured for surface mounting.

14. An electrical component comprising:

an amplifier comprising an output stage;

a power-supply path for powering the output stage, the power supply path comprising a line comprising conductor track sections connected in parallel;

a carrier substrate containing the amplifier and the line, the carrier substrate comprising metallization planes and comprising dielectric layers comprised of ceramic;

wherein conductor track sections of the line are in separate metallization planes of the carrier substrate and corresponding ends of the conductor track sections are interconnected using via contacts; and

wherein at least one of the conductor track sections is opposite a ground area or a ground connection.

15. The electrical component of claim 14 , wherein the line comprises a λ/4 line at an operating frequency of the amplifier.

16. The electrical component of claim 14 , wherein the carrier substrate comprises:

at least three metallization planes; and

dielectric layers among the at least three metallization planes.

17. The electrical component of claim 14 , wherein the conductor track sections have meander-like shapes.

18. The electrical component of claim 14 , further comprising a capacitor between the line and ground.

19. The electrical component of claim 18 , wherein the capacitor is part of a chip that is mounted on the carrier substrate.

20. The electrical component of claim 14 , further comprising:

a low-pass filter that is in the carrier substrate and that is electrically connected to a path that receives an output of the amplifier, the low-pass filter comprising series oscillating circuits, each of the series oscillating circuits comprising a capacitor and an inductor in a shunt arm;

wherein circuit elements of the low-pass filter comprise conductor sections in metallization planes of the carrier substrate.