Analysis to two-tone, third-order distortion in cascaded two-ports
- 1 April 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Microwave Theory and Techniques
- Vol. 36 (4) , 701-705
- https://doi.org/10.1109/22.3574
Abstract
The third-order intermodulation distortion (IMD) of a system composed of a number of cascaded two-port networks is considered. The two-tone, third-order intercept point (IP) is highly dependent on the phase angles of the IMD signals, which are usually unknown to the system designer. Consequently, worst-case design strategies are normally used in these situations. General bound formulas are developed for the IP that include the effects of mismatches between component networks. Expressions for the expected value and variance of the IP of two cascaded two-port networks are also obtained. A comparison of these results with measurements indicates that worst-case design strategies are overly conservative in many situations.Keywords
This publication has 1 reference indexed in Scilit:
- Characterization of Nonlinearities in Microwave Devices and SystemsIEEE Transactions on Microwave Theory and Techniques, 1973