Non-Linear Behaviour in Commonly Used Non- Polar Dielectrics at Microwave Frequencies in Space RF Components
El-Nahass, S., Khattab, T. (1997). Non-Linear Behaviour in Commonly Used Non- Polar Dielectrics at Microwave Frequencies in Space RF Components. EKB Journal Management System, 7(ASAT Conf. 13-15 May 1997), 1-12. doi: 10.21608/asat.1997.25432
Safwat El-Nahass; Tawfik Khattab. "Non-Linear Behaviour in Commonly Used Non- Polar Dielectrics at Microwave Frequencies in Space RF Components". EKB Journal Management System, 7, ASAT Conf. 13-15 May 1997, 1997, 1-12. doi: 10.21608/asat.1997.25432
El-Nahass, S., Khattab, T. (1997). 'Non-Linear Behaviour in Commonly Used Non- Polar Dielectrics at Microwave Frequencies in Space RF Components', EKB Journal Management System, 7(ASAT Conf. 13-15 May 1997), pp. 1-12. doi: 10.21608/asat.1997.25432
El-Nahass, S., Khattab, T. Non-Linear Behaviour in Commonly Used Non- Polar Dielectrics at Microwave Frequencies in Space RF Components. EKB Journal Management System, 1997; 7(ASAT Conf. 13-15 May 1997): 1-12. doi: 10.21608/asat.1997.25432

Non-Linear Behaviour in Commonly Used Non- Polar Dielectrics at Microwave Frequencies in Space RF Components

International Conference on Aerospace Sciences and Aviation Technology
Article 40, Volume 7, ASAT Conf. 13-15 May 1997, May 1997, Pages 1-12    PDF (2.61 M)
Document Type: Original Article
DOI: 10.21608/asat.1997.25432
Authors
Safwat El-Nahass1; Tawfik Khattab2
1R & D, Depratment Manager, EAF.
2R & D Depratment EAF.
Abstract
In space RF communications payloads, it is increasingly required that high-power multi-channel transmitters and broadband receivers have shared, or closely adja-cent RF feeds. Because of the large power level difference between the transmit and receive signals and the limitation of frequency allocation, harmonics genera-tion due to passive non-linearities in the high-power transmission path can be a se-rious problem. This paper describes how to determine the signal levels and dominant mechanisms associated with non-linear dielectric behaviour in this con-text. A novel measurement system for testing dielectric samples is described and measurement results are provided for commonly used microwave dielectrics.
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