Patent application number | Description | Published |
20090108953 | 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 of between one-quarter wavelength and one-half wavelength, with no air gap between the two sections along the length of the internal cavity. The improved waveguide circulator can be implemented in variations from a minimum of two ferrite circulator elements held in close proximity to one another to any number of ferrite elements as required to achieve the desired isolation performance or to create a switch matrix with any combination of input and output ports. The improved waveguide circulator minimizes the length of the transitions between adjacent ferrite elements and thus reduces losses, component size, and mass. | 04-30-2009 |
20140049332 | SWITCHING FERRITE CIRCULATOR WITH AN ELECTRONICALLY SELECTABLE OPERATING FREQUENCY BAND - A ferrite element for a switchable circulator comprises a first segment extending in a first direction from a center portion of the ferrite element; a second segment extending in a second direction from the center portion of the ferrite element; and a third segment extending in a third direction from the center portion of the ferrite element. Each of the first segment, the second segment, and the third segment include a first channel located at a first distance from a center point of the ferrite element. The first distance defines a first resonant section of the ferrite element. Each of the first segment, the second segment, and the third segment also include a second channel located at a second distance from the center point. The second distance defines a second resonant section of the ferrite element. | 02-20-2014 |
20140049333 | FERRITE CIRCULATOR WITH ASYMMETRIC FEATURES - A ferrite element for a circulator comprises a first segment extending in a first direction from a center portion of the ferrite element; a second segment extending in a second direction from the center portion of the ferrite element; and a third segment extending in a third direction from the center portion of the ferrite element. Each of the first segment, the second segment, and the third segment has a respective width and include a channel located at a respective distance from a center point of the ferrite element. At least one of the respective width of each segment or the respective distance from the center point for the channel in each segment is different for each respective segment such that the first segment operates over a first frequency sub-band, the second segment operates over a second frequency sub-band, and the third segment operates over a third frequency sub-band. | 02-20-2014 |
20140049334 | WAVEGUIDE CIRCULATOR WITH TAPERED IMPEDANCE MATCHING COMPONENT - Systems and methods for a waveguide circulator with tapered matching component are provided. In certain embodiments, a waveguide structure comprises a plurality of waveguide arms; an internal cavity; a plurality of tapered matching components, wherein each tapered matching component in the plurality of tapered matching components has a narrow taper end that is connected to the internal cavity and a wide taper end that is connected to a waveguide arm in the plurality of waveguide arms, wherein the narrow taper end is narrower than the wide taper end; and a ferrite element having ferrite element segments disposed in the internal cavity, wherein a segment extends through the narrow taper end and the narrow taper end of the tapered matching component is narrower than the wide taper end such that a magnitude of impedance difference between each waveguide arm and the internal cavity containing the ferrite element is reduced. | 02-20-2014 |
20140049335 | RECONFIGURABLE SWITCHING ELEMENT FOR OPERATION AS A CIRCULATOR OR POWER DIVIDER - A device comprises a waveguide structure that includes multiple arms extending from the structure, wherein the arms connect to the structure; a switching element disposed in the structure and having multiple segments, each segment being associated with a waveguide arm, wherein the switching element has an E-plane aperture extending through the switching element, wherein the E-plane aperture is aligned perpendicularly to the H-plane; and an E-plane magnetizing winding inserted through the E-plane aperture such that current applied to the E-plane magnetizing winding establishes a magnetic field in the switching element that is aligned with the H-plane. In a further embodiment, the structure includes an H-plane aperture formed through each segment, the H-plane aperture aligned with the H-plane; and an H-plane magnetizing winding inserted through the H-plane apertures, wherein current applied to the H-plane magnetizing winding establishes a magnetic field in the switching element that is not aligned with the H-plane. | 02-20-2014 |
20140285278 | FERRITE CIRCULATOR WITH ASYMMETRIC DIELECTRIC SPACERS - A circulator for a waveguide is provided. The circulator comprises a waveguide housing including a central cavity, and a ferrite element disposed in the central cavity of the waveguide housing, with the ferrite element including a first surface and an opposing second surface. The circulator also comprises a pair of asymmetric dielectric spacers including a first dielectric spacer located on the first surface of the ferrite element, and a second dielectric spacer located on the second surface of the ferrite element. | 09-25-2014 |
20140285279 | WAVEGUIDE CIRCULATOR WITH IMPROVED TRANSITION TO OTHER TRANSMISSION LINE MEDIA - A waveguide circulator for an electro-magnetic field having a wavelength is provided. The waveguide circulator includes: N waveguide arms, where N is a positive integer; a ferrite element having N segments protruding into the N respective waveguide arms; at most (N−1) quarter-wave dielectric transformers attached to respective ends of at most (N−1) other segments; a first quarter-wave dielectric transformer attached to an end of the first segment; and a coaxial-coupling component. The N waveguide arms include a first-waveguide arm and (N−1) other-waveguide arms. The N segments include a first segment protruding into the first-waveguide arm and (N−1) other segments protruding into respective (N−1) other-waveguide arms. The coaxial-coupling component is positioned within a quarter wavelength of the electro-magnetic field from the first quarter-wave dielectric transformer positioned in the first-waveguide arm. | 09-25-2014 |
20140320227 | MODULAR FERRITE SWITCH FOR CONSTRUCTING SWITCH NETWORKS - Systems and methods for a modular ferrite switch for constructing switch networks are provided. In one implementation, a circulator redundancy network comprises multiple inputs; multiple outputs; and multiple circulator modules that connect the inputs to the outputs. A circulator module includes at least one module input connected to at least one input; at least one module output, where the number of module outputs equals the number of module inputs; multiple interconnection ports, configured to connect the circulator module to other circulator modules; and multiple circulators that route received signals between the at least one input, the at least one output, and the interconnection ports. Further, multiple interconnects connect the plurality of circulator modules to one another at the interconnection ports; and a circulator switch controller controls the direction of circulation for the plurality of circulators. | 10-30-2014 |
20140340165 | FERRITE CIRCULATOR WITH INTEGRATED E-PLANE TRANSITION - A waveguide circulator system for an E-plane-layer transition includes a first waveguide including: at least N waveguide arms, and a first-interface aperture spanning a first X-Y plane on a bottom surface of a first waveguide arm, a ferrite element having N segments protruding into the N respective waveguide arms of the first waveguide; an E-plane-transition waveguide having a first open-end and a second opposing open-end; and a second waveguide including a second-interface aperture spanning a second X-Y. The first-interface aperture is arranged to proximally overlap the first open-end. The second second-interface aperture of the second waveguide and the second-interface aperture is arranged to proximally overlap the second open-end. At least a portion of the first segment of the ferrite element protrudes into a volume extending between the first-interface aperture on the bottom surface of the first waveguide arm and an opposing top surface of the first waveguide arm. | 11-20-2014 |
20140354368 | COMBINED-BRANCHED-FERRITE ELEMENT WITH INTERCONNECTED RESONANT SECTIONS FOR USE IN A MULTI-JUNCTION WAVEGUIDE CIRCULATOR - The present application relates to a combined-branched-ferrite element including at least two branched-ferrite elements, the branched-ferrite elements having three branches. At least one of the three branches in the ferrite elements is connected to a branch of another one of the ferrite elements to form at least one connected-branch. The unconnected branches are input/output (I/O) branches and include input/output (I/O) apertures in respective I/O branch planes that divide the respective I/O branches into resonator sections and return-path sections. At least one connected-aperture in the at least one connected-branch that connects two ferrite elements is in a respective connected-branch plane that separates the connected-branch so that: the resonator section of the connected-branch for a first-branched-ferrite element is a return-path section of the connected-branch for a second-branched-ferrite element; and the resonator section of the connected-branch for the second-branched-ferrite element is a return-path section of the connected-branch for the first-branched-ferrite element. | 12-04-2014 |
20150028967 | TWIST FOR CONNECTING ORTHOGONAL WAVEGUIDES IN A SINGLE HOUSING STRUCTURE - A twist for coupling radiation between orthogonal waveguides is provided. The twist includes at least three cavities opening from at least one of a first X1-Y1 surface and a second X2-Y2 surface of a metal block. A first cavity has a first opening in a first Y-Z plane and a second opening in a second Y-Z plane offset from the first Y-Z plane by a first length. A second cavity shares the second opening with the first cavity and has a third opening in a third Y-Z plane offset from the second Y-Z plane by a second length and has at least two heights and at least two widths. A last cavity shares a next-to-last opening in a next-to-last Y-Z plane with a next-to-last cavity. The last cavity has a last opening in a last Y-Z plane offset from the next-to-last Y-Z plane by a last length. | 01-29-2015 |
20150042411 | FERRITE CIRCULATOR WITH REDUCED-HEIGHT TRANSFORMERS - A circulator comprises a waveguide housing having a plurality of hollow waveguide arms that communicate with a central cavity, the waveguide housing having a height defined by a plurality of waveguide sidewalls between a waveguide floor and a waveguide ceiling. A ferrite element is disposed in the central cavity of the waveguide housing, with the ferrite element including a central portion. The ferrite element further includes a plurality of ferrite segments that each extend from the central portion and terminate at a distal end. A plurality of dielectric transformers each having an upper surface protrude into the waveguide arms away from the central cavity along the waveguide floor. The dielectric transformers have a height that is less than the height of the waveguide housing such that the upper surface of the transformers is separated from the waveguide ceiling by a gap. | 02-12-2015 |