摘要:
Disclosed herein is a non-reciprocal circuit element that includes a dielectric substrate having a through hole, a magnetic rotator accommodated in the through hole, and a permanent magnet that applies a magnetic field to the magnetic rotator. The magnetic rotator is supported by the dielectric substrate without contacting an inner wall of the through hole.
摘要:
A quantum device includes a non-reciprocal transmission structure, wherein the transmission structure is designed such that for first waves traversing the transmission structure in a forward direction the phases of the first waves are at least partially conserved, and for second waves traversing the transmission structure in a backward direction, the phases of the second waves are at least partially replaced by random ones, such that the phase conservation is more pronounced in the forward direction than in the backward direction.
摘要:
Disclosed herein is a non-reciprocal circuit element that includes a substrate having lower and upper surfaces, a magnetic metal layer provided on the lower surface of the substrate, a magnetic rotator provided on the upper surface of the substrate, and a permanent magnet for applying a magnetic field to the magnetic rotator. The magnetic metal layer includes a lower yoke provided at a position overlapping the magnetic rotator in a plan view and a plurality of terminal electrodes connected to the magnetic rotator.
摘要:
A quantum device includes a non-reciprocal transmission structure, wherein the transmission structure is designed such that for first waves traversing the transmission structure in a forward direction the phases of the first waves are at least partially conserved, and for second waves traversing the transmission structure in a backward direction, the phases of the second waves are at least partially replaced by random ones, such that the phase conservation is more pronounced in the forward direction than in the backward direction.
摘要:
A nonreciprocal device includes a waveguide through which waves at a first frequency propagate with a first wavevector and with a second wavevector in a direction opposite to the first wavevector; a frequency-dependent device that operates within a frequency range and modifies the waves through the waveguide in a way that is dependent on the first frequency; and a set of couplers to couple the waveguide and the frequency-dependent device. Coupling rates of the set of couplers are modulated to enable nonreciprocal coupling, with respect to the frequency-dependent device, of the first wavevector compared to the second wavevector.
摘要:
An irreversible circuit element that can reduce manufacturing costs by preventing faults that lead to product defects includes a magnetic body, a magnetic body securing casing, and a magnet. The magnetic body securing casing is arranged so as to surround the magnetic body. The magnet is arranged on one side of the magnetic body. The magnetic body securing casing includes a first electrode on one casing main surface arranged on the one side, a second electrode on the other casing main surface arranged on the other side opposite to the one side, and a through-conductor that passes through the magnetic body securing casing and electrically connects the first electrode to the second electrode. The first electrode is connected to a first wiring arranged on the one side of the magnetic body.
摘要:
An antenna for transmitting and/or receiving-electromagnetic waves has a flat ground plane, and an array of radiating and/or receiving elements. The radiating and/or receiving element comprises a planar conductor which is arranged in parallel to the ground plane. An L-shaped slot is arranged in the planar conductor.
摘要:
A nonreciprocal transmission line apparatus is provided with a cascade connection of unit cells between ports. Each unit cell includes a transmission line part for a microwave signal, and shunt branch circuits equivalently including inductive elements. Each unit cells has spontaneous magnetization or is magnetized by an external magnetic field so as to have gyrotropy by being magnetized in a magnetization direction different from a propagation direction of the transmission line part. In each of the unit cells, the shunt branch circuits includes a first stub conductor formed on one side with respect to a plane composed of the propagation direction and the magnetization direction, and a second stub conductor formed on the other side with respect to the plane, and the stub conductors have different electric length from each other.
摘要:
A circulator/isolator assembly is disclosed. The assembly includes a first magnetic substrate having first surface and a second surface and a first ground plane formed on the first surface. A dielectric layer is disposed adjacent first magnetic substrate. The dielectric layer includes a multi-port junction circuit coupled to transmission traces. One of the traces forms an input port and another forms an output port. A first magnet is disposed proximate the multi-port junction circuit of the dielectric layer. The first magnet excites a circular, unidirectional magnetic flux field in the first magnetic substrate that limits electromagnetic wave propagation to a single direction.
摘要:
A waveguide matching unit is disclosed. The waveguide matching unit includes a gyrator having first and second waveguides. The first waveguide includes first and second ports that are connected by a first waveguide channel. An RF signal propagating through the first waveguide channel is phase shifted by about 90° when propagating from the first to the second port, and is phase shifted by about 0° when propagating from the second port to the first port. The second waveguide includes third and fourth ports that are connected by a second waveguide channel. An RF signal propagating through the second waveguide channel is phase shifted by about 0° when propagating from the third to the fourth port, and is phase shifted by about 90° when propagating from the fourth port to the third port.