Abstract
This paper presents a design methodology for a broadband high-efficiency power amplifier (PA). The large available impedance space of the extended continuous Class-GF mode is employed. A novel output matching network of the PA consisting of a rectangular double transmission line structure is proposed to meet impedance requirements. To validate the effectiveness of this structure, a high-efficiency PA operating in 0.8-3.0 GHz is designed using a CGH40010F GaN transistor. The measured results demonstrate that the drain efficiency falls within the range of 63.2%-71.9%, the output power varies from 40.2 to 42.2 dBm, and the gain ranges from 9.4 to 11.3 dB within the frequency band of 0.8-3 GHz. The realized PA exhibits an extremely competitive relative bandwidth of 115.8%.
| Original language | English |
|---|---|
| Pages (from-to) | 1349-1354 |
| Number of pages | 6 |
| Journal | International Journal of Microwave and Wireless Technologies |
| Volume | 16 |
| Issue number | 8 |
| Early online date | 02 Jul 2024 |
| DOIs | |
| Publication status | Published - 01 Oct 2024 |
Bibliographical note
Publisher Copyright:© The Author(s), 2024. Published by Cambridge University Press in association with The European Microwave Association.
Keywords
- broadband
- high-efficiency
- power amplifier
- rectangular double transmission line structure
ASJC Scopus subject areas
- Electrical and Electronic Engineering