Reflection coefficient measurement with FM-89 photometers

1978 ◽  
Vol 21 (3) ◽  
pp. 349-351
Author(s):  
G. M. Gorodinskii ◽  
M. A. Protsenko ◽  
O. M. Mikhailov
Keyword(s):  
Reflection Coefficient ◽  
Coefficient Measurement

The method of determining the metrological performance of unit reference standards of reflection coefficient in waveguides at millimeter waves

2020 ◽  
pp. 59-63
Author(s):  
A.S. Bondarenko ◽  
A.S. Borovkov ◽  
I.M. Malay ◽  
V.A. Semyonov
Keyword(s):  
Reflection Coefficient ◽  
Millimeter Waves ◽  
Primary Standard ◽  
Reference Standards ◽  
Measurement Scale ◽  
Current State ◽  
Coefficient Measurement ◽  
Mathematical Equations ◽  
Electrodynamic Modeling ◽  
Metrological Performance

The analysis of the current state of the reflection coefficient measurements in waveguides at millimeter waves is carried out. An approach for solving the problem of reproducing the reflection coefficient measurement scale is proposed. Mathematical equations, which are the basis of the reflection coefficient measurement equation are obtained. The method of determining the metrological performance of reflection coefficient unit’s reference standards is developed. The results of electrodynamic modeling and analytical calculations by the developed method are compared. It is shown that this method can be used for reproducing the reflection coefficient unit in the development of the State primary standard.

Corner reflector in a stripline in reflection-coefficient measurement

1991 ◽  
Vol 34 (12) ◽  
pp. 1245-1248
Author(s):  
G. A. Vedyushkin ◽  
M. G. Chernyshov
Keyword(s):  
Reflection Coefficient ◽  
Corner Reflector ◽  
Coefficient Measurement

Reflection Coefficient Measurement through the Implementation of Wideband Multi-Port Reflectometer with Error Correction for Microwave Imaging Application of Human Head

2013 ◽  
Vol 64 (3) ◽  
Author(s):  
Rashidah Che Yob ◽  
Norhudah Seman
Keyword(s):  
Reflection Coefficient ◽  
Error Correction ◽  
Human Head ◽  
Correction Method ◽  
Microwave Imaging ◽  
Passive Components ◽  
Power Dividers ◽  
Imaging Application ◽  
Coefficient Measurement ◽  
Design Systems

This article presents the reflection coefficient measurement by using a wideband multi-port reflectometer for microwave imaging application of human head. The configuration of the proposed wideband multi-port reflectometer is formed by passive components, which are four couplers and two power dividers operating from 1 to 6 GHz. The investigation is successfully done through simulation using the Agilent’s Advanced Design Systems (ADS) software and practical measurement in laboratory. An error correction method with three standards of match, open and short load is then applied to the constructed wideband multi-port reflectometer to remove its imperfect characteristics. The wideband characteristics of proposed reflectometer are analyzed and verified across the designated frequency band.  Its operation in reflection coefficient is tested with the chosen device under test (DUT).

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