A Blocker-Tolerant Receiver With VCO-Based Non-Uniform Multi-Level Time-Approximation Filter
Why this work is in the frame
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Bibliographic record
Abstract
A blocker-tolerant millimeter-wave (mm-Wave) receiver is presented using a multi-level time-approximation filter (mTAF), a voltage-controlled oscillator (VCO)-based integrator with embedded digitization, and non-uniform (NU) sampling to enhance filtering flexibility and efficiency. The mTAF approximates FIR filter responses using a digitally generated multi-level weighting pattern that controls gated integration over time. Compared with state-of-the-art reconfigurable blocker-tolerant receivers, the seven-level mTAF introduces more programmable notches, enables asymmetric filtering, and provides wider stopbands for improved blocker suppression. The VCO-based integrator simplifies circuit complexity and achieves competitive power efficiency compared with conventional Gm-C designs, while NU sampling further mitigates alias-band blockers. Fabricated in 28-nm CMOS, the prototype occupies 0.83 mm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> and consumes 87 mW. The receiver achieves 65-dB maximum blocker rejection, −36-dB EVM without blockers, and −31-dB EVM with a 24-dBc blocker at 1.217-GHz offset from a 32-GHz LO.
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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) | 0.000 | 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