Comments on “A Simple and Universal Phase Control Method for Designing Directional Couplers With Adjustable Phase Difference Slope and High Linearity”
Author:
- 28 April 2023
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Microwave Theory and Techniques
- Vol. 72 (1) , 461-463
Abstract
In the above article (Pan et al., 2023), it is shown that the solution given for the –90 $^\circ$ directional coupler with adjustable phase difference slope is inadequate for equal power division purposes. The proposed solution results in a significant error between the two outputs of the coupler. Exact, correct solutions are derived for the coupler, which proves that the proposed solution in Pan et al. (2023) corresponds to the coupler for an unequal power division case rather than the equal power division.Keywords
Funding Information
- Kwangwoon University
This publication has 1 reference indexed in Scilit:
- A Simple and Universal Phase Control Method for Designing Directional Couplers With Adjustable Phase Difference Slope and High LinearityIEEE Transactions on Microwave Theory and Techniques, 2023