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公开(公告)号：US09774069B2
公开(公告)日：2017-09-26
申请号：US14854297
申请日：2015-09-15
Applicant: Raytheon Company
Inventor： David D. Crouch
CPC classification number: H01P3/06 , H01P5/12 , H01Q21/245
Abstract: An impedance matching power combining/dividing system and a method for combining power combiners/dividers are presented. The impedance matching power combiner comprises a cylindrical matching cavity, two or more coaxial inputs, each of the two or more coaxial inputs having an inner input conductor and an outer input conductor and having a source impedance, a coaxial output having an inner output conductor and an outer output conductor and having a load impedance and a circular matching plate suspended inside the cylindrical matching cavity, wherein the inner input conductors and the inner output conductor are electrically connected to the matching plate, the outer input conductors and the outer output conductor are electrically connected to the cylindrical matching cavity and the cylindrical matching cavity at least partially matches the source impedance with the load impedance. The system and method to combine/divide groups of power combiners/dividers to handle high power are also presented. The power combiners/dividers have a small transverse dimension that they easily fit in a phased array lattice structure and operate at high frequencies.
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公开(公告)号：US20160104936A1
公开(公告)日：2016-04-14
申请号：US14865131
申请日：2015-09-25
Applicant: Raytheon Company
Inventor： David D. Crouch , Keith G. Kato
CPC classification number: H01Q7/00 , H01Q1/40 , H01Q3/2605 , H01Q5/35 , H01Q9/42 , H01Q13/00 , H01Q21/0006 , H01Q21/24 , H01Q21/28
Abstract: A multiple input loop antenna comprising one or more half-loop antennas disposed above a ground plane wherein the plane of each half loop is perpendicular to the ground plane such that the multiple input loop antenna is a three-dimensional structure and electromagnetic waves are radiated from points within the volume occupied by the antenna rather than from a two-dimensional surface. For this reason, the multiple input loop antenna can radiate levels of peak power without inducing excessive air breakdown which are relatively high compared with peak power levels of conventional antennas having comparable transverse dimensions. Also described is an array antenna comprised of an array of multiple input loop antennas.
Abstract translation: 一种多输入环形天线，包括设置在接地平面上方的一个或多个半环形天线，其中每个半环的平面垂直于接地平面，使得多输入环形天线是三维结构，并且电磁波从 在天线占据的体积内的点，而不是二维表面。 为此，多输入环形天线可以辐射峰值功率的电平，而不会引起与具有相当的横向尺寸的常规天线的峰值功率电平相比相对较高的过多的空气击穿。 还描述了由多个输入环形天线的阵列组成的阵列天线。
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公开(公告)号：US09172140B2
公开(公告)日：2015-10-27
申请号：US13721897
申请日：2012-12-20
Applicant: Raytheon Company
Inventor： David D. Crouch , Keith G. Kato
CPC classification number: H01Q7/00 , H01Q1/40 , H01Q3/2605 , H01Q5/35 , H01Q9/42 , H01Q13/00 , H01Q21/0006 , H01Q21/24 , H01Q21/28
Abstract: A multiple input loop antenna comprising one or more half-loop antennas disposed above a ground plane wherein the plane of each half loop is perpendicular to the ground plane such that the multiple input loop antenna is a three-dimensional structure and electromagnetic waves are radiated from points within the volume occupied by the antenna rather than from a two-dimensional surface. For this reason, the multiple input loop antenna can radiate levels of peak power without inducing excessive air breakdown which are relatively high compared with peak power levels of conventional antennas having comparable transverse dimensions. Also described is an array antenna comprised of an array of multiple input loop antennas.
Abstract translation: 一种多输入环形天线，包括设置在接地平面上方的一个或多个半环形天线，其中每个半环的平面垂直于接地平面，使得多输入环形天线是三维结构，并且电磁波从 在天线占据的体积内的点，而不是二维表面。 为此，多输入环形天线可以辐射峰值功率的电平，而不会引起与具有相当的横向尺寸的常规天线的峰值功率电平相比相对较高的过多的空气击穿。 还描述了由多个输入环形天线的阵列组成的阵列天线。
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公开(公告)号：US20240170826A1
公开(公告)日：2024-05-23
申请号：US17991460
申请日：2022-11-21
Applicant: Raytheon Company
Inventor： David D. Crouch , David R. Sar
Abstract: An axially-fed RF power combiner combines a plurality of input signals to generate a single fundamental-mode transverse electromagnetic (TEM) output. The combiner comprises a vacuum coaxial transmission line having a plurality of coaxial vacuum feedthroughs configured to receive the input signals. The feedthroughs are arranged axially around the vacuum coaxial transmission line. An increasing gap is provided between the inner conductive surface and the outer conductive surface of the vacuum coaxial transmission line to gradually transition the input signals from each coaxial vacuum feedthrough to quasi-TEM mode signals within the vacuum envelope of the vacuum coaxial transmission line. In some conductive-ridge embodiments, the inner conductive surface of the vacuum coaxial transmission line may comprise a cylindrical conductive base and a plurality of radially-aligned conductive ridges azimuthally distributed within a vacuum envelope of the vacuum coaxial transmission line. In some ridge-less embodiments, the inner conductive surface includes a tapered region within the vacuum envelope to provide an increasing gap between the inner conductive surface and the outer conductive surface.
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公开(公告)号：US20230344106A1
公开(公告)日：2023-10-26
申请号：US17660217
申请日：2022-04-22
Applicant: Raytheon Company
Inventor： David D. Crouch , David R. Sar , Eachan Russell Landreth
IPC: H01P5/19
CPC classification number: H01P5/19
Abstract: A waveguide-to-waveguide power combiner/divider including a waveguide including a first opening at a first end of a first section of the waveguide in a first plane and n openings of n sections at n other ends of the waveguide, wherein n is a positive integer. At least one of the n sections is bent in at least one plane different from the plane of first section, and the first section and n sections each have at least two sides that are broader than at least two other sides; and n−1 walls within waveguide configured to divide a height of first section into n heights. Each of n sections has a height equal to one of the n heights, wherein the n−1 walls are located at a junction of the first section and the n sections and extend toward the first opening of the first section.
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Patent Agency Ranking
公开(公告)号：US20220265880A1
公开(公告)日：2022-08-25
申请号：US17182067
申请日：2021-02-22
Applicant: Raytheon Company
Inventor： Travis B. Feenstra , David D. Crouch , Alf L. Carroll, III , John Carcone , David R. Sar
Abstract: An apparatus includes a containment vessel having an interior space configured to be sealed. The interior space is configured to receive (i) liquid to be vaporized during a decontamination process and (ii) one or more pieces of personal protection equipment to be heated and decontaminated during the decontamination process. The apparatus also includes one or more flameless heaters configured to generate heat without a flame when activated. The apparatus further includes a thermal pouch configured to enclose the containment vessel and the one or more flameless heaters such that the heat from the one or more flameless heaters heats the containment vessel during the decontamination process.
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公开(公告)号：US11293731B2
公开(公告)日：2022-04-05
申请号：US16828200
申请日：2020-03-24
Applicant: RAYTHEON COMPANY
Inventor： David D. Crouch , David R. Sar , Michael J. Holihan , Alf L. Carroll, III
Abstract: A non-lethal naval vessel interdiction weapon is provided. The non-lethal naval vessel interdiction weapon includes a hydrodynamic hull, guidance and delivery systems housed in the hydrodynamic hull with the delivery system being controllable by the guidance system to drive a naval vessel impeding payload toward a target and a deployment system. The deployment system is configured to prepare the hydrodynamic hull for payload deployment and to deploy the naval vessel impeding payload toward the target following hull preparation.
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公开(公告)号：US20210330841A1
公开(公告)日：2021-10-28
申请号：US16944617
申请日：2020-07-31
Applicant: Raytheon Company
Inventor： David D. Crouch , Alf L. Carroll, III , John Carcone , David R. Sar , Travis B. Feenstra
Abstract: An apparatus includes a containment vessel having an interior space configured to be sealed. The interior space is configured to receive at least one reservoir of liquid to be vaporized during a decontamination process. The apparatus also includes a base configured to be inserted into the interior space. The base is configured to receive one or more pieces of personal protection equipment to be heated and decontaminated within the interior space during the decontamination process. The base is configured to hold the one or more pieces of personal protection equipment above the at least one reservoir of liquid. The apparatus further includes a pressure-relief valve configured to be opened to release a pressure within the interior space. In some cases, the apparatus may include a filter configured to filter material passing through the pressure-relief valve.
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公开(公告)号：US20210257746A1
公开(公告)日：2021-08-19
申请号：US16793592
申请日：2020-02-18
Applicant: Raytheon Company
Inventor： Robert S. Isom , David D. Crouch
Abstract: Methods and apparatus for providing a wideband dual differential current loop radiator. In embodiments, a radiator includes first and second dipole pairs with first and second differential conductor pairs providing differential signals to the first and second dipole arms. The radiator may include a cavity, which can be filed with air, in at least a portion of a feed layer. The dipoles may have a coincident phase center.
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公开(公告)号：US10727582B1
公开(公告)日：2020-07-28
申请号：US16422020
申请日：2019-05-24
Applicant: RAYTHEON COMPANY
Inventor： David D. Crouch , Larry C. Martin
Abstract: A radio frequency (RF) system includes a transmitter and a receiver. The transmitter includes a transmitter (TX) antenna array and a TX signal absorber. The TX antenna array is configured to output a first RF signal. The receiver includes a receiver (RX) antenna array and a RX signal absorber. The RX antenna array is configured to receive a second RF signal. The TX signal absorber and the RX signal absorber are each configured to absorb energy induced by the RF signal thereby mitigating electrical co-site interference between the transmitter and the receiver.
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