Low-cost E-band receiver front-end development for gigabyte point-to-point wireless communications
Bibliographic record
Abstract
This paper presents an attractive low cost E-band (81-86 GHz) receiver front-end system with a broad bandwidth (up to 5 GHz) based on substrate integrated waveguide (SIW) technology. The proposed subsystem is designed for gigabyte point-to-point wireless communication system. Active components are surface-mounted on alumina substrate utilizing miniature hybrid microwave-integrated circuit (MHMIC) technology. To increase gain and bandwidth of the antenna, and also to reduce fabrication cost, antenna and passive components are designed and fabricated on a low cost Rogers 6002 substrate with low dielectric constant. To fabricate the passive components, low cost printed circuit board (PCB) process is used. Then, the two substrates are integrated together by simple wire bonding process. With this design and implementation technique, our E-band front-end receiver subsystem can demonstrate attractive advantages and features such as broad bandwidth, low cost, compact size, light weight, and repayable performance. The minimum detectable power density at the receiver point is 0.41 μW/cm2 and the dynamic range is 72 dB.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.003 |
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 source (direct Gemma or distilled Codex), 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".