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1. (WO2017184046) CIRCULATOR DEVICE WITH TWO MAGNET-FREE CIRCULATORS

Pub. No.:    WO/2017/184046    International Application No.:    PCT/SE2016/050353
Publication Date: Fri Oct 27 01:59:59 CEST 2017 International Filing Date: Sat Apr 23 01:59:59 CEST 2016
IPC: H01P 1/38
H01P 1/36
H03H 7/52
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: HOU, Rui
RIDELL VIRTANEN, Lars
Title: CIRCULATOR DEVICE WITH TWO MAGNET-FREE CIRCULATORS
Abstract:
There is provided a circulator device (200a). The circulator device comprises two magnet-free circulators (220a,220b). Each magnet-free circulator has a forced time variance. The circulator device comprises ports (240a,240b,240c). The two circulators are in the circulator device arranged to have mutually anti-phase time variance. Each of the two circulators is coupled to all of the ports. There is also presented an isolator device comprising such a circulator device. There is also presented a radio transceiver device comprising such a circulator device or isolator device.