An MHMIC K-Band Direct Conversion Demodulator in CPW
Bibliographic record
Abstract
This paper presents results on a miniature hybrid microwave integrated circuit (MHMIC) direct frequency conversion demodulator in coplanar waveguide (CPW) for in-phase/quadrature (I/Q) applications at the 20 GHz radio-frequency (RF) band. The 4x7 mm2 converter was fabricated using flip-chip GaAs Schottky diodes in a single balanced configuration. It provides in-phase and quadrature outputs with an amplitude balance of better than 1 dB, and a phase balance better than 4.2n over the RF range (20.2 to 21.2 GHz) and the IF range (dc to 200 MHz). To the author's knowledge, the performance and size reached by this circuit is equal or better than comparable circuits of similar topology that use more expensive fabrication processes.
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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) | 0.000 | 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 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".