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Record W2164633990 · doi:10.1109/iscas.2009.5118191

A new loss-reduced distributed amplifier structure

2009· article· en· W2164633990 on OpenAlexaff
Aliakbar Ghadiri, Kambiz Moez

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicRadio Frequency Integrated Circuit Design
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsDistributed amplifierAmplifierBandwidth (computing)Electrical engineeringAttenuationElectronic engineeringComputer scienceRF power amplifierEngineeringPhysicsTelecommunicationsOptics

Abstract

fetched live from OpenAlex

A novel loss-reduced distributed amplifier (DA), branched distributed amplifier (BDA), is presented. Unlike conventional DAs, in this structure the source/load is connected at the middle of input/output transmission lines. This technique effectively reduces the length of transmission lines and in turn lowers signal attenuation. Moreover, the optimal number of stages can be increased in the proposed structure. The final amplifier is implemented in 0.13 mum IBM's CMRF8SF CMOS as two cascaded DAs with different number of stages. Post-layout simulation results show a 3-dB bandwidth of 38.5 GHz and an average pass-band gain of 20.5 dB, resulting in a gainbandwidth (GBW) product of 408 GHz. Input matching is less than -20 dB and output matching is well below -10 dB over the entire bandwidth. The chip area is 1.2 mm by 0.6 mm and power consumption is 154 mW.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.003
Threshold uncertainty score0.010

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0030.001

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.

Opus teacher head0.008
GPT teacher head0.209
Teacher spread0.201 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations2
Published2009
Admission routes1
Has abstractyes

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