NONRECIPROCAL TRANSMISSION LINE DEVICE AND ANTENNA APPARATUS

WIPO Patent Application WO/2019/172192

A1

A nonreciprocal transmission line device (10) having mutually different propagation characteristics in forward and backward directions is provided with a plurality of unit cells (20) which are formed on a substrate having first and second surfaces facing each other, and are cascade-connected. Each of the unit cells (20) is provided with a grounded conductor (1) formed on the first surface of the substrate, an electromagnetic wave transmission line portion (11) formed on the second surface of the substrate, and a first parallel branch circuit (12) formed on the second surface of the substrate and equivalently including a capacitive element connected to the transmission line portion (11). Each of the unit cells (20) is magnetized in a magnetization direction different from a direction along the first and second surfaces of the substrate and different from the propagation direction of the transmission line portion (11) and has gyro anisotropy. Each of the first parallel branch circuits (12) is formed on one side of a plane passing through the transmission line portion (11) and formed by the propagation direction and the magnetization direction. The substrate comprises a magnetic substance (15) between each of the first parallel branch circuits (12) and the grounded conductor (1).

UEDA TETSUYA (JP)
OKAMOTO KOJI (JP)

PCT/JP2019/008438

September 12, 2019

March 04, 2019

Click for automatic bibliography generation  

NAT UNIV CORP KYOTO INST TECHNOLOGY (JP)

H01P1/32; H01Q13/20

WO2015129757A1	2015-09-03
WO2012115245A1	2012-08-30

YAMAO, Norihito et al. (JP)

View/Download PDF      PDF Help

Previous Patent: BLOOD STORAGE TANK

Next Patent: POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY CELL, AND LITHIUM-ION SECONDARY CELL