| Autor: |
Shohei Imai, Satoshi Tanaka, Hiroshi Okabe |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
2021 IEEE MTT-S International Microwave Symposium (IMS). |
| DOI: |
10.1109/ims19712.2021.9574838 |
| Popis: |
This study presents a transformer-based Doherty combiner for a wideband Doherty amplifier suitable for use in a handset. The circuit topology configuration is based on closed-form equations. Circuit element values are optimized for wideband operation. An amplifier incorporating the combiner is fabricated with a laminated board and GaAs chip, and subsequently evaluated using 100 MHz bandwidth 5G signals. The amplifier operates in the range of 2.2-2.7 GHz with more than 35% efficiency and adequately low distortion when assisted by memory-less digital pre-distortion. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
