Design of a millimetre-wave ferrite isolator at 28.5 GHz

1 January 1985

journal article
Published by Institution of Engineering and Technology (IET) in IEE Proceedings H Microwaves, Antennas and Propagation

Vol. 132 (4) , 244-250
https://doi.org/10.1049/ip-h-2.1985.0045

Abstract

A field displacement isolator design in finline technique is described using a lamella structure including a ferrite layer, energy absorbing layers and a dielectric spacer layer. An isolator with a forward insertion loss of 1.3 dB and a reverse loss higher than 35 dB at 28.5 GHz was developed. The design was based on a field theory for the calculation of the power-density distribution inside the isolator, exact measured material parameters of the ferrite material and experimental optimisation of the lamella structure. The design procedure and the results are described in detail.

Keywords

This publication has 2 references indexed in Scilit:

Power Density Distribution Analysis of Ferrite Loaded Finlines for the Development of Integrated Nonreciprocal Millimeter Wave Elements
Published by Institute of Electrical and Electronics Engineers (IEEE) ,2005
Felder und Wellen in gyrotropen Mikrowellenstrukturen
Published by Springer Nature ,1973