Design, Construction and Measurements
Differential Error Analysis of Error Models
Part 1: Full One-Port Calibration
Differential Error Analysis of Error Models
Part 2: Full Two-Port Calibration
| JOURNAL / ISSUES / SHORT SEARCH ISSN 2310-6697/ISSN-L 2310-6697 |
| open transactions on independent scientific-engineering research |
| FUNKTECHNIKPLUS # JOURNAL |
| Théorie-Expérimentation-Métrologie-Logiciel-Applications |
| ISSUE 1 - MONDAY 30 SEPTEMBER 2013 - YEAR 1 |
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| PAPERS |
| Attribution 4.0 International License CC BY 4.0 |
| 1-1 |
| # Telecommunications Engineering - Applications |
| All-Band 2G+3G Radial Disc-Cone Antennas: Design, Construction and Measurements |
| N. I. Yannopoulou, P. E. Zimourtopoulos, E. T. Sarris |
| ABSTRACT |
| We define as "All-Band 2G+3G" any band that includes all frequencies allocated to both 2G and 3G services. We define as "Radial Disc-Cone Antenna RDCA" any discone antenna with a structure of radial wires. The RDCA was theoretically analyzed and software simulated with the purpose of computationally design a broadband model of it. As an application, a broadband RDCA for operation from 800 to 3,000 MHz, which include all 2G and 3G frequencies, was designed and an experimental model was constructed and tested. In order to evaluate the agreement between theory and practice, mathematically expressed measurement error bounds were computed. |
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| 1-2 |
| # Telecommunications Engineering - Métrologie |
| Measurement Uncertainty in Network Analyzers: Differential Error Analysis of Error Models Part 1: Full One-Port Calibration |
| N. I. Yannopoulou, P. E. Zimourtopoulos |
| ABSTRACT |
| An analytical method was developed to estimate errors in quantities depended on full one-port vector network analyzer (VNA) measurements using differentials and a complex differential error region (DER) was defined. To evaluate the method, differences instead of differentials were placed over a DER which was then analyzed and compared with another commonly used estimated error. Two real differential error intervals (DEIs) were defined by the greatest lower and least upper bounds of DER projections. To demonstrate the method, a typical device under test (DUT) was built and tested against frequency. Practically, a DER and its DEIs are solely based on manufacturer's data for standard loads and their uncertainties, measured values and their inaccuracies. |
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| MD5:a60ddcf2a1e873b124ddbb9b1729c9eb |
| 1-3 |
| # Telecommunications Engineering - Métrologie |
| Measurement Uncertainty in Network Analyzers: Differential Error Analysis of Error Models Part 2: Full Two-Port Calibration |
| N. I. Yannopoulou, P. E. Zimourtopoulos |
| ABSTRACT |
| Since S-parameter measurements without uncertainty cannot claim any credibility, the uncertainties in full two-port Vector Network Analyzer (VNA) measurements were estimated using total complex differentials (Total Differential Errors). To express precisely a comparison relation between complex differential errors, their differential error regions (DERs) were used. To demonstrate the method in the most accurate case of a direct zero-length thru, practical results are presented for commonly used Z-parameters of a simple, two-port, DC resistive T-network, which was built and tested against frequency with a VNA measurement system extended by two lengthy transmission lines. |
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