An extended bandwidth Doherty power amplifier using a novel output combiner
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
This paper proposes a novel output combiner for Doherty power amplifiers with extended bandwidth. The proposed output combiner employs a resonance LC tank at the output of the peaking transistor to maintain the back-off impedance seen by the main transistor over a wide frequency band. In addition, the output combiner provides low low-frequency impedance for both the main and peaking transistors which results in improved linearizability when the amplifier is concurrently driven with dual-band modulated signals. A 20W, 30% bandwidth gallium nitride Doherty power amplifier based on the proposed topology was implemented to demonstrate the effectiveness of the output combiner. The Doherty amplifier was successfully linearized under single- and dual-band modulated excitations and achieved 42% power added efficiency when amplifying a concurrent dual-band 15 MHz WCDMA and 15MHz LTE signals with 9:4dB peak-to-average power ratio.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it