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Record W2150803799 · doi:10.23919/eumc.2009.5296299

A novel topology of SiGe phase shifters using vector sum method with ultra-low power consumption for 5GHz applications

2009· article· en· W2150803799 on OpenAlexaff
Khelifa Hettak, Scott McLelland, G.A. Morin, M.G. Stubbs

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicRadio Frequency Integrated Circuit Design
Canadian institutionsDefence Research and Development CanadaCommunications Research Centre Canada
Fundersnot available
KeywordsVariable-gain amplifierAmplifierCascodePhase shift moduleBalunNoise figureElectrical engineeringHeterojunction bipolar transistorAutomatic gain controlElectronic engineeringEngineeringVideo Graphics ArrayTopology (electrical circuits)ChipVoltageTransistorBipolar junction transistorOperational amplifierCMOSInsertion lossAntenna (radio)

Abstract

fetched live from OpenAlex

A new type of an active phase shifter is proposed using a vector sum method that utilizes a cascode low-noise amplifier (LNA) circuit as a variable gain amplifier (VGA). The proposed configuration was designed and implemented using a Wilkinson power combiner/divider, a branch-line 3 dB quadrature hybrid coupler and variable gain amplifiers (VGAs) with 90° phase control and around 50-dB gain control. At 5 GHz, the module has a maximum gain of 6.8 dB. The chip is very small, operates with low voltage supplies, and is designed for wireless local area network applications and is fabricated using a commercial 0.35 μm SiGe HBT process.

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 distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation 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: Methods · Consensus signal: none
Teacher disagreement score0.879
Threshold uncertainty score0.615

Codex and Gemma teacher scores by category

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 communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.030
GPT teacher head0.311
Teacher spread0.281 · 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 teacher head, not a consensus.

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

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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