Abstract
This paper presents an analysis of the optimal Z f0 load trajectories of saturated GaN PAs through Z f0 and Z 2f0 load-pull measurements under constant input power on a 900 MHz 10 W PA. It is shown that a DE >50% at 10 dB back-off can be obtained for a range of 160 ? of Z 2f0 when Z f0 is set to its optimal point. The black box combiner design equations are used as a tool to determine the complete outphasing load trajectories for outphasing systems designed for different back-off levels and extract drain efficiency performance for a range of Z 2f0 terminations. When the suboptimal outphasing load trajectories are considered, Z 2f0 is demonstrated to have a greater impact compared to the case Z f0 follows the optimal load trajectories.
| Original language | English |
|---|---|
| Title of host publication | 2018 Asia-Pacific Microwave Conference (APMC) |
| Publisher | IEEE |
| Pages | 58-60 |
| Number of pages | 3 |
| ISBN (Electronic) | 9784902339451 |
| DOIs | |
| Publication status | Published - 17 Jan 2019 |
| Event | 30th Asia-Pacific Microwave Conference 2018 - Kyoto, Japan Duration: 6 Nov 2018 → 9 Nov 2018 |
Conference
| Conference | 30th Asia-Pacific Microwave Conference 2018 |
|---|---|
| Abbreviated title | APMC 2018 |
| Country/Territory | Japan |
| City | Kyoto |
| Period | 6/11/18 → 9/11/18 |
Keywords
- Harmonically tuned PAs
- Outphasing
ASJC Scopus subject areas
- Electrical and Electronic Engineering