Multiple-path RF amplifiers with angularly offset signal path directions, and methods of manufacture thereof
US9774301B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2016 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Jun 3, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/21139
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An embodiment of a Doherty amplifier module includes a substrate, an RF signal splitter, a carrier amplifier die, and a peaking amplifier die. The RF signal splitter divides an input RF signal into first and second input RF signals, and conveys the first and second input RF signals to first and second splitter output terminals. The carrier amplifier die includes one or more first power transistors configured to amplify, along a carrier signal path, the first input RF signal to produce an amplified first RF signal. The peaking amplifier die includes one or more second power transistors configured to amplify, along a peaking signal path, the second input RF signal to produce an amplified second RF signal. The carrier and peaking amplifier die are coupled to the substrate so that the RF signal paths through the carrier and peaking amplifier die extend in substantially different (e.g., orthogonal) directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.