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 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> and 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 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) | 0.004 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".