T. Miura et al., A CONTINUOUS-MAGNETIC-CIRCUIT LUMPED-ELEMENT CIRCULATOR CONSTRUCTED BY MULTILAYER CERAMIC TECHNOLOGIES, Microwave and optical technology letters, 13(2), 1996, pp. 66-71
A lumped-element circulator with a continuous rf magnetic circuit has
been developed. The circulator uses ceramic multilayer technologies an
d a novel conductor embedding method. The broad isolation bandwidth an
d simple structure of this circulator will contribute to the cost-effe
ctive stabilization of rf circuits in mobile telephone sets. (C) 1996
John Wiley & Sons, Inc.