Push-pull rf power amplifier circuit and push-pull rf power amplifier
US-2024429886-A1 · Dec 26, 2024 · US
Amplifier
US11336235B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11336235-B2 |
| Application number | US-202016996614-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 18, 2020 |
| Priority date | Mar 14, 2018 |
| Publication date | May 17, 2022 |
| Grant date | May 17, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An amplifier is configured in such a way that a first capacitor resonates at the frequency of a second harmonic wave included in a signal outputted from an amplifying element, a circuit including a second transmission line, the first capacitor, and a second capacitor resonates at the frequency of a third harmonic wave included in the signal outputted from the amplifying element, and also matches the impedance for a fundamental wave together with an impedance matching circuit.
First claim
Opening claim text (preview).
What is claimed is: 1. An amplifier comprising: an amplifying element for amplifying an inputted signal and outputting the amplified signal; a first transmission line in which one end is connected to an output terminal for signals in the amplifying element; a second transmission line in which one end is connected to the other end of the first transmission line; a first capacitor in which one end is connected to the other end of the first transmission line, and the other end is grounded; a second capacitor in which one end is connected to the other end of the first transmission line, and the other end is connected to the other end of the second transmission line; and an impedance matching circuit in which one end is connected to the other end of the second transmission line, and the other end thereof is connected to the output terminal, and that matches impedance for a fundamental wave included in the signal outputted from the amplifying element, and after matching the impedance, outputs a signal via the output, terminal connected to the other end thereof, wherein the first capacitor resonates at a frequency of a second harmonic wave included in the signal outputted from the amplifying element, and a circuit including the second transmission line, the first capacitor, and the second capacitor resonates at a frequency of a third harmonic wave included in the signal outputted from the amplifying element and also matches the impedance for the fundamental wave together with the impedance matching circuit. 2. The amplifier according to claim 1 , wherein the second transmission line includes a third transmission line in which one end is connected to the other end of the first transmission line, a fourth transmission line in which one end is connected to the other end of the third transmission line, and a fifth transmission line in which one end is connected to the other end of the fourth transmission line, and the other end is connected to the other end of the second capacitor. 3. The amplifier according to claim 2 , wherein the amplifier includes a third capacitor in which one end is connected to the fifth transmission line, and the other end is grounded. 4. The amplifier according to claim 2 , wherein the amplifier includes a fourth capacitor in which one end is connected to the other end of the third transmission line, and the other end is grounded. 5. The amplifier according to claim 2 , wherein the amplifier includes a third capacitor in which one end is connected to the fifth transmission line, and the other end is grounded, and a fourth capacitor in which one end is connected to the other end of the third transmission line, and the other end is grounded.
Assignees
Inventors
Classifications
using FET's, e.g. GaAs FET's (H03F3/607, H03F3/608 take precedence) · CPC title
Modifications of input or output impedances, not otherwise provided for · CPC title
- H03F1/565Primary
using inductive elements · CPC title
Amplifier output adaptation especially for transmission line coupling purposes, e.g. impedance adaptation · CPC title
in transistor amplifiers · CPC title
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Frequently asked questions
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- What does patent US11336235B2 cover?
- An amplifier is configured in such a way that a first capacitor resonates at the frequency of a second harmonic wave included in a signal outputted from an amplifying element, a circuit including a second transmission line, the first capacitor, and a second capacitor resonates at the frequency of a third harmonic wave included in the signal outputted from the amplifying element, and also matche…
- Who is the assignee on this patent?
- Mitsubishi Electric Corp
- What technology area does this patent fall under?
- Primary CPC classification H03F1/565. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 17 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).