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Record W3161795248 · doi:10.22215/etd/2021-14393

Power Gain Optimization for Multiple Active Multiple Passive Dipole Antenna Arrays

2021· dissertation· en· W3161795248 on OpenAlex
Shady Elkamhawy

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldEngineering
TopicAntenna Design and Optimization
Canadian institutionsCarleton University
Fundersnot available
KeywordsDipoleAntenna (radio)Dipole antennaPower (physics)Antenna gainCurrent (fluid)Work (physics)Method of moments (probability theory)Electronic engineeringRegular polygonComputer sciencePhysicsMathematical optimizationMathematicsEngineeringElectrical engineeringTelecommunicationsAntenna efficiencyGeometryStatistics

Abstract

fetched live from OpenAlex

In this work we consider dipole antenna arrays composed of both active, i.e., excited by voltage sources, and reactively controlled passive dipole elements. Unlike the traditional approach in which the current distribution along the antenna elements is assumed to be sinusoidal, herein we obtain the exact distribution from the Hallen equations using the Method of Moments (MoM). The obtained current distributions are subsequently used to derive exact expressions for the far-field power gain of the antenna array in any given direction. Using the exact current distribution, we show that the current distributions on the dipole elements can deviate significantly from the sinusoidal approximation. Consequently, the exact power gain pattern mismatches that obtained using the sinusoidal assumption for the current distribution. Optimizing the excitation voltages and the load reactances for the active and passive elements, respectively, to maximize the gain; constitutes a non-convex optimization problem.

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.

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 categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.809
Threshold uncertainty score1.000

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 integrity0.0010.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.008
GPT teacher head0.218
Teacher spread0.209 · 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

Quick stats

Citations0
Published2021
Admission routes1
Has abstractyes

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