A lumped element circulator with semi-additive metallized conductors
Robert Stonies, Daniel Teufer, Dirk Schulz
German Microwave Conference - GeMiC 2006 -
1st January 0001
A symmetrical 3-port lumped element circulator built by the use of thin film technology including electroplating is presented allowing very compact devices. A semi-additive metallization process yields high accuracy in reproduction of the structure with small features while allowing the implementation of via-holes. Two technological procedures are presented and compared. The lumped element circulator performance is numerically calculated and optimized to some extend, providing valuable information about important device performances. A comparison with measured scattering parameters shows good agreement with the calculation.
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