Apparatus and method for matching harmonics

• US 9,337,784 B2
• Filed: 07/03/2014
• Issued: 05/10/2016
• Est. Priority Date: 07/05/2013
• Status: Active Grant

• Current Assignee: Postech Academy-Industry Foundation, Samsung Electronics Co. Ltd.
• Original Assignee: Postech Academy-Industry Foundation, Samsung Electronics Co. Ltd.
• Inventors: Son, Jung-Hwan, Kim, Il-Du, Kim, Bumman, Kim, Kyoung-Tae, Lee, Dong-Geun
• Primary Examiner(s): Nguyen, Patricia T
• Application Number:
  US14/323,427
• Publication Number:
  US 20150008980A1
• Time in Patent Office: 677 Days
• Field of Search: 330/302, 330/149, 330/277
• US Class Current: 1/1
• CPC Class Codes: H03F 1/565 using inductive elements
• CPC Class Codes: H03F 3/193 with field-effect devices H03F3/195 takes precedence

Abstract

An apparatus of a power amplifier is provided. The apparatus includes an input boosting circuit configured to match a second harmonic input signal using a harmonic control circuit of an input stage to maximize an efficiency and an output power, a die cell configured to receive and amplify an output signal of the input boosting circuit, and an output boosting circuit configured to receive an output signal of the die cell and to match a second harmonic output signal of the output signal of the die cell using a harmonic control circuit of an output stage to maximize the efficiency and the output power.

Claims

1. An apparatus of a power amplifier, the apparatus comprising:

an input boosting circuit including a first harmonic control circuit that is used for matching a harmonic input signal;

a die cell configured to receive and amplify an output signal from the input boosting circuit; and

an output boosting circuit including a second harmonic control circuit that is used for matching a harmonic output signal of the output signal from the die cell.

2. The apparatus of claim 1, wherein the first harmonic control circuit matches the harmonic input signal to a short region.

3. The apparatus of claim 1, wherein the first harmonic control circuit comprises at least one inductor and at least one capacitor.

4. The apparatus of claim 3,

wherein the first harmonic control circuit comprises one inductor and one capacitor connected in series,

wherein the one inductor is connected to the input boosting circuit, and

wherein the one capacitor is connected to a ground.

5. The apparatus of claim 3,

wherein the first harmonic control circuit comprises two inductors connected in series and two capacitors,

wherein a first inductor of the two inductors is connected to a first point of the input boosting circuit,

wherein a second inductor of the two inductors is connected to a second point of the input boosting circuit,

wherein a first capacitor of the two capacitors connects a point between the first inductor and the second inductor with a ground, and

wherein a second capacitor of the two capacitors connects the second point of the input boosting circuit with the ground.

6. The apparatus of claim 2, wherein the first harmonic control circuit is connected to one of a first stage, a mid stage, and a last stage of the input boosting circuit.

7. The apparatus of claim 1, wherein the second harmonic control circuit matches the harmonic output signal of the output signal from the die cell to an inductive region.

8. The apparatus of claim 1, wherein the second harmonic control circuit comprises at least one inductor and at least one capacitor.

9. The apparatus of claim 8,

wherein the second harmonic control circuit comprises one inductor and one capacitor connected in series,

wherein the inductor is connected to the output boosting circuit, and

wherein the capacitor is connected to a ground.

10. The apparatus of claim 8,

wherein the second harmonic control circuit comprises two inductors connected in series and two capacitors,

wherein a first inductor of the two inductors is connected to a first point of the output boosting circuit,

wherein a second inductor of the two inductors is connected to a second point of the output boosting circuit,

wherein a first capacitor of the two capacitors connects a point between the first inductor and the second inductor with a ground, and

wherein a second capacitor of the two capacitors connects the second point of the output boosting circuit with the ground.

11. The apparatus of claim 7, wherein the second harmonic control circuit is connected to one of a first stage, a mid stage, and a last stage of the input boosting circuit.

12. A method for operating a power amplifier, the method comprising:

matching, at an input boosting circuit including a first harmonic control circuit, a harmonic input signal using the first harmonic control circuit;

receiving and amplifying, at a die cell, an output signal of the input boosting circuit; and

matching, at an output boosting circuit including a second harmonic control circuit, a harmonic output signal of the output signal from the die cell using the second harmonic control circuit.

13. The method of claim 12, wherein the first harmonic control circuit matches the harmonic input signal to a short region.

14. The method of claim 12, wherein the first harmonic control circuit comprises at least one inductor and at least one capacitor.

15. The method of claim 14,

wherein the first harmonic control circuit comprises one inductor and one capacitor connected in series,

wherein the one inductor is connected to the input boosting circuit, and

wherein the capacitor is connected to a ground.

16. The method of claim 14,

wherein the first harmonic control circuit comprises two inductors connected in series and two capacitors,

wherein a first inductor of the two inductors is connected to a first point of the input boosting circuit,

wherein a second inductor of the two inductors is connected to a second point of the input boosting circuit,

wherein a first capacitor of the two capacitors connects a point between the first inductor and the second inductor with a ground, and

wherein a second capacitor of the two capacitors connects the second point of the input boosting circuit with the ground.

17. The method of claim 12, wherein the output boosting circuit matches the harmonic output signal of the output signal from the die cell to an inductive region using the second harmonic control circuit.

18. The method of claim 12, wherein the second harmonic control circuit comprises at least one inductor and at least one capacitor.

19. The method of claim 18,

wherein the second harmonic control circuit comprises one inductor and one capacitor connected in series,

wherein the inductor is connected to the output boosting circuit, and

wherein the capacitor is connected to a ground.

20. The method of claim 18,

wherein the second harmonic control circuit comprises two inductors connected in series and two capacitors,

wherein a first inductor of the two inductors is connected to a first point of the output boosting circuit,

wherein a second inductor of the two inductors is connected to a second point of the output boosting circuit,

wherein a first capacitor of the two capacitors connects a point between the first inductor and the second inductor with a ground, and

wherein a second capacitor of the two capacitors connects the second point of the input boosting circuit with the ground.