Dual-Band 3-Way Doherty Power Amplifier With Extended Back-Off Power and Bandwidth
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 brief presents an energy-efficient dual-band 3-way Doherty power amplifier (DPA) suitable for wireless infrastructure that transmits intra-band and inter-band carrier aggregated communication signals with high peak-to-average power ratios. This brief begins with a bandwidth analysis of dual-band impedance inverting networks, especially when used to absorb the transistors' output capacitances. This analysis produced a set of equations which directed the synthesis of a dual-band 3-way DPA combining network capable of producing the proper load modulation over an extended output back-off while maintaining acceptable fractional bandwidth (FBW). A 60-watt dual-band 3-way DPA was designed as a proof-of-concept demonstrator to operate in two bands, 2.0-2.2 GHz and 3.3-3.6 GHz. Under continuous wave stimuli, drain efficiencies of about 48% and 43% were recorded at an output back-off of 9dB in the two bands. These efficiencies were maintained over a FBW of about 10%. The linearizability of the fabricated DPA using digital pre-distortion techniques was also confirmed under intra-band and inter-band carrier-aggregated signals.
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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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