**Nonreciprocal Devices Utilizing Longitudinally Magnetized Ferrite Coupled Lines**

Adam Kusiek, Wojciech Marynowski, Rafal Lech and Jerzy Mazur ∗

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### **Abstract**

This chapter presents authors' recent research on the nonreciprocal devices utilizing longitudinally magnetized ferrite coupled line (FCL) junction. The principle of operation of FCL junction is explained and the hybrid techniques of analysis are shown. Numerical and experimental results concerning the nonreciprocal devices utilizing the different configurations of FCL junctions are presented and discussed.

**Keywords**: ferrite, nonreciprcoal, Faraday rotation
