HYBRID RESONATORS IN MULTILAYER SUBSTRATESAND FILTERS BASED ON THESE RESONATORS

WIPO Patent Application WO/2013/171788

A1

A filter of the present invention comprises a multilayer substrate, two terminals, a ground conductor and a hybrid resonator. The multilayer substrate includes a plurality of conductor layers and a dielectric configured to isolate said plurality of conductor layers from each other. The hybrid resonator is disposed in the multilayer substrate and comprises a first and a second resonant elements and a coupling strip connecting the first and said second resonant elements. Each resonant element comprises a signal via, a group of ground vias and an artificial dielectric. Each signal via is disposed through the multilayer substrate. Each group of ground vias is disposed through the multilayer substrate and configured to surround the signal via. Each artificial dielectric is disposed in the multilayer substrate and between the signal via and the group of ground vias. The artificial dielectric comprises a conductive plate connected to the first signal via and an isolating slit isolating the first conductive plate from the group of ground vias.

KUSHTA TARAS (JP)
HARADA TAKASHI (JP)

PCT/JP2012/003175

November 21, 2013

May 15, 2012

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NEC CORP (JP)
KUSHTA TARAS (JP)
HARADA TAKASHI (JP)

H01P1/205; H01P7/04; H05K1/02; H05K3/46

WO2011010393A1	2011-01-27
WO2010073410A1	2010-07-01
WO2008133010A1	2008-11-06

JP2008507858A	2008-03-13
JP2007158675A	2007-06-21

KUDOH, Minoru (24-10 Minamiooi 6-chome, Shinagawa-k, Tokyo 13, JP)

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