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| Number | Title | Issue Date |
| 8183952 | Surface mountable circulator The present invention is directed to a surface mountable circulator/isolator device that includes a first dielectric layer having an electric circuit formed thereon. A second center dielectric layer is disposed adjacent the first dielectric layer, the center dielect... | 05/22/2012 |
| 8183953 | Multi-junction stripline circulators A multi-junction stripline circulator, comprising a housing with a cavity structure and a plurality of stripline junction circuits stacked within the cavity structure and connected in a cascade arrangement. Each stripline junction circuit comprises a stripline condu... | 05/22/2012 |
| 8138848 | Circulator/isolator with an asymmetric resonator The present invention is directed to a circulator device that includes a housing defining an interior three-dimensional volume. The housing includes a plurality of port openings disposed therein. A gyromagnetic resonator stack is disposed in the housing. The gyromag... | 03/20/2012 |
| 8134422 | Non-reciprocal circuit device A non-reciprocal circuit device comprising a ground plate having pluralities of external projections, a resin member having a hole through which the ground plate is exposed, a garnet plate disposed in the hole of the resin member, a microstrip line member disposed o... | 03/13/2012 |
| 8058944 | Microwave circulators A microwave circulator having an outer metal housing with a cavity containing at least one magnet and an annular centring arrangement interposed between the outside of the magnet and the cavity. The centring arrangement includes first and second solid metal rings, t... | 11/15/2011 |
| 8040199 | Low profile and compact surface mount circulator on ball grid array A surface mount circulator. The novel circulator includes a substrate, a predetermined number of microstrip lines disposed on a first surface of the substrate, a ground layer and a predetermined number of electrical contacts disposed on the second surface of the sub... | 10/18/2011 |
| 8022783 | Non-reciprocal circuit element The invention relates to a non-reciprocal circuit element (1) having a plurality of strip conductor elements (2) insulated electrically from one another, which conductor elements are embedded in a multilayer core (3) of ferrimagnetic material an... | 09/20/2011 |
| 7978018 | Non-reciprocal circuit device A non-reciprocal circuit device comprising a magnetic plate F1; center conductors L1, L2, and L3 that are mutually insulated and disposed so as to intersect on magnetic plate F1; a plane conductor P1 that is disposed facing ... | 07/12/2011 |
| 7936231 | Circulator/isolator housing with inserts A circulator/isolator housing is provided that includes body and a plurality of slots within the body configured to receive therethrough inserts having magnetic permeability. The housing further includes a plurality of receiving portions within the body correspondin... | 05/03/2011 |
| 7936230 | Non-reciprocal component and method for making and using the component in a mobile terminal The invention relates to a non-reciprocal component comprising: a ferrite substrate having a first side and an opposing second side located on a ground layer, a first metal line and a second metal line are located on the ferrite substrate in parallel to each other. ... | 05/03/2011 |
| 7915971 | Nonreciprocal circuit device A nonreciprocal circuit device includes a ferrite-magnet element having ferrite provided with first and second central electrodes intersecting each other in an insulated manner and two permanent magnets arranged to sandwich the ferrite to apply a DC magnetic field t... | 03/29/2011 |
| 7907030 | Integrated circulators sharing a continuous circuit The present invention is directed to a circuit assembly that includes an integrated circulator assembly. The circuit assembly has a first substrate, which contains a continuous circuit trace that includes a circulator component from the circulator assembly and at le... | 03/15/2011 |
| 7816994 | Microwave circulator with thin-film exchange-coupled magnetic structure A microwave circulator uses a thin-film exchange-coupled structure to provide an in-plane magnetic field around the circulator. The exchange-coupled structure is a ferromagnetic layer having an in-plane magnetization oriented generally around the circulator and an a... | 10/19/2010 |
| 7816995 | Circulator canceller with increased channel isolation A system includes a first circulator, a second circulator connected to the first circulator and a load, a third circulator connected to the second circulator, and a filter connected between the first and third circulators. The filter modifies the phase and amplitude... | 10/19/2010 |
| 7772937 | Circulator/isolator housing with inserts A circulator/isolator housing is provided that includes body and a plurality of slots within the body configured to receive therethrough inserts having magnetic permeability. The housing further includes a plurality of receiving portions within the body correspondin... | 08/10/2010 |
| 7746188 | Integrated non-reciprocal component The invention relates to a non-reciprocal component comprising a first dielectric part (11) and a ferrite substrate (12) located on the same level, a ground layer (18) is located below the ferrite substrate (12), a metal line arrangement ... | 06/29/2010 |
| 7746189 | Waveguide circulator A waveguide circulator comprising at least three waveguide arms intersecting at a junction, at least one ferrite element positioned within the junction, an impedance transformer and a recessed transformer. At least a portion of each of the at least three waveguide a... | 06/29/2010 |
| 7683731 | Ferrite waveguide circulator with thermally-conductive dielectric attachments The present invention improves the geometry of ferrite circulators in order to increase the average power handling by decreasing the temperature rise in the ferrite and associated adhesive bonds. Embodiments of the present invention utilize dielectric attachments on... | 03/23/2010 |
| 7659792 | Circulator device and a method for assembly The present invention is directed to a circulator/isolator device that includes a housing having a substantially planar base portion integrally connected to a segmented flexible wall structure extending in a direction normal thereto. The substantially planar base po... | 02/09/2010 |
| 7626471 | Non-reciprocal circuit device A non-reciprocal circuit device comprising a first inductance element L1 disposed between a first input/output port P1 and a second input/output port P2, a first capacitance element Ci parallel-connected to the first inductance element L1... | 12/01/2009 |
| 7609124 | Non-reciprocal circuit device A non-reciprocal circuit device comprising a metal case, a ground plate disposed on an inner bottom surface of the metal case, a resin member disposed on the ground plate and having an opening from which the ground plate is exposed, a planar microwave ferrite member... | 10/27/2009 |
| 7570128 | Integrated non-reciprocal component comprising a ferrite substrate The invention relates to a non-reciprocal component (10) comprising: a ferrite substrate (11) having a first side (1-″) and an opposing second side (16) located on a ground layer (18), a first metal line (12) and a second ... | 08/04/2009 |
| 7567141 | Nonreciprocal circuit device and communication apparatus A nonreciprocal circuit device includes permanent magnets, a ferrite core to which a DC magnetic field is applied from the permanent magnets, center electrodes disposed on the ferrite core, a circuit substrate, a magnetic yoke, and an electromagnetic shield plate. T... | 07/28/2009 |
| 7561003 | Multi-junction waveguide circulator with overlapping quarter-wave transformers An improved multi-junction waveguide circulator overlaps two quarter-wave dielectric transformer sections so that the transitional sections occur concurrently in the same length of waveguide. Consequently, the two quarter-wavelength sections require a total length o... | 07/14/2009 |
| 7522012 | Nonreciprocal circuit device and manufacturing method of the same A nonreciprocal circuit device includes permanent magnets, a ferrite to which a direct current magnetic field is applied by the permanent magnets, first and second central electrodes arranged on the ferrite, and a circuit substrate. A ferrite-magnet assembly mounted... | 04/21/2009 |
| 7495521 | Multi-channel circulator/isolator apparatus and method A multi-channel circulator or isolator well suited for use in phased array antennas or other RF devices where space and packaging constraints make the implementation of a conventional circular or isolator difficult or impossible. The multi-channel circulator/isolato... | 02/24/2009 |
| 7453326 | Nonreciprocal circuit device A nonreciprocal circuit device includes a ferrite to which a direct magnetic field is applied using permanent magnets, central electrodes arranged on the ferrite, and a circuit substrate. The first central electrode is made of conductive films, and the second centra... | 11/18/2008 |
| 7443262 | Two-port isolator, characteristic adjusting method therefor, and communication apparatus A two-port isolator includes a metal case having an upper metal case portion and a lower metal case portion, a resin case integrated with the case, a permanent magnet member, a center electrode assembly including a ferrite member and center electrodes, and a laminat... | 10/28/2008 |
| 7432777 | Non-reciprocal circuit element, composite electronic component, and communication apparatus An isolator includes five center electrodes coupled at radio frequencies to a ferrite member to which a DC bias magnetic field is applied from a permanent magnet. First and third electrodes do not intersect each other. The first and third electrodes intersect the se... | 10/07/2008 |
| 7429901 | Non-reciprocal circuit element, composite electronic component, and communication apparatus An isolator includes first, second, and third center electrodes coupled in a high frequency manner with a ferrite member to which a direct-current magnetic field is applied by a permanent magnet. The first and third electrodes do not intersect with each other, and i... | 09/30/2008 |
| 7420435 | Non-reciprocal circuit element, method for manufacturing the same, and communication device A non-reciprocal circuit element is equipped with a ferrite-magnet assembly which includes a pair of permanent magnets and a ferrite sandwiched between the permanent magnets. A first center electrode and a second center electrode defined by conducting films are prov... | 09/02/2008 |
| 7397321 | Digitally controlled circulator and radio frequency identification reader having the same Provided are a digitally controlled circulator and a radio frequency identification (RFID) reader having the circulator. A power splitter is composed of lumped elements and the values of the elements are digitally changed using switching means, in which the transmis... | 07/08/2008 |
| 7394330 | Non-reciprocal circuit element A magnetic rotor includes a soft ferrite substrate and a plurality of central conductors. The magnetic rotor is provided inside a casing. A permanent magnet is provided inside the casing, and disposed to overlap the magnetic rotor so as to apply a DC magnetic field ... | 07/01/2008 |
| 7385454 | Ferrite housing for microwave devices A ferrite housing is provided that includes a body for receiving at least one ferrite element therein and a plurality of mounting portions extending from and forming part of the body. ... | 06/10/2008 |
| 7382209 | Non-reciprocal circuit device There is provided a non-reciprocal circuit device which is suitable for a reduction in height, an increase in a mechanical securing strength and a reduction in a number of components, and has a improvement in the yield of assembly, a sufficiently reduction in the ma... | 06/03/2008 |
| 7382211 | Non-reciprocal circuit device A non-reciprocal circuit device comprising a first inductance element disposed between a first input/output port and a second input/output port, a second inductance element disposed between the second input/output port and a ground, a first capacitance element const... | 06/03/2008 |
| 7365616 | Non-reciprocal element with three central conductors and communication apparatus using the same A non-reciprocal element with three central conductors and a communication apparatus are disclosed, in which the insertion loss is small and the bandwidth is wide. Three central conductors are arranged in proximity to a ferrite thin plate in such a manner as to cros... | 04/29/2008 |
| 7366244 | Method and system for antenna interference cancellation A wireless communication system can comprise two or more antennas that interfere with one another via free space coupling, surface wave crosstalk, dielectric leakage, or other interference effect. The interference effect can produce an interference signal on one of ... | 04/29/2008 |
| 7362195 | Ferro magnetic metal-insulator multilayer radio frequency circulator A directional R.F. circulator directs radio frequency signals without an external biasing magnetic field. Layers of ferromagnetic materials and insulating materials form a laminated nano-structure. The layers are selected to have a thickness smaller than the wavelen... | 04/22/2008 |
| 7362562 | Electronic unit of radio system and method of producing the same The invention relates to a method of producing an electronic unit of a radio system automatically, an electronic unit of a radio system and an electronic component. The method of producing an electronic unit of a radio system automatically comprises mounting (802... | 04/22/2008 |
