A Wideband 24-29 GHz Differential All-Pass Filter in 65-nm CMOS
Bibliographic record
Abstract
A CMOS wideband voltage-mode fully differential all-pass filter (APF) is discussed. The APF circuit consists of three transistors, two inductors, two capacitors, and four resistors. The proposed APF employs the generic two-transistor common-source amplifier structure. Design procedures along with parasitic analysis are presented for wideband applications. The proposed APF is designed and fabricated in a 65-nm CMOS process. The operation of the proposed APF is validated by experimental and post-layout simulation results. The filter experimentally demonstrates a group delay (GD) of 59 ps at 26 GHz and it has less than 10% delay variation across a wide bandwidth of 24-29 GHz. The implemented design occupies an area of 0.09 mm2and consumes 5.1 mA from 1 V supply voltage. The noise and linearity performances of the proposed APF are validated by post-layout simulation results. The filter has a noise figure of 8.6-8.9 dB across 24-29 GHz and it achieves an input- referred IP3 of -1.14 dBm.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".