公开(公告)号：US3601719A

公开(公告)日：1971-08-24

申请号：US3601719D

申请日：1969-10-09

Applicant: INT STANDARD ELECTRIC CORP

Inventor： HODGSON KENNETH GEORGE ,  CRAVEN GEORGE FREDERICK ,  THOMAS RAYMOND RICHARD

IPC: H01P1/219 ,  H01P7/06 ,  H01P1/30

CPC classification number: H01P1/219

Abstract: An evanescent H-mode rectangular waveguide resonator having a tuning screw mounted on one broad wall is temperature compensated by having said screw physically penetrate close to the opposite broad wall of said waveguide. Said penetration provides significant end-loading capacitance. In one preferred embodiment, said screw is offset from the longitudinal centerline of said waveguide to achieve both the required tuning capacitance and the required penetration. In another preferred embodiment, to further improve temperature compensation, a silver-plated Swedish iron screw having a lower coefficient of expansion than the material of the waveguide, (i.e., copper) penetrates close to the opposite broad wall.

公开(公告)号：US3657668A

公开(公告)日：1972-04-18

申请号：US3657668D

申请日：1970-05-25

Applicant: INT STANDARD ELECTRIC CORP

Inventor： CRAVEN GEORGE FREDERICK ,  THOMAS RAYMOND RICHARD

IPC: H01P1/219 ,  H01P1/00 ,  H01P1/18 ,  H01P5/04 ,  H01P5/20 ,  H01P5/12

CPC classification number: H01P5/20 ,  H01P1/182

Abstract: A hybrid T-junction constructed in waveguide for operation below its cut-off frequency. The series arm of the hybrid provides a parallel resonant circuit in series with the symmetrical arms of the hybrid. The shunt arm provides a series resonant circuit at the midpoint of the series arm. The equivalent circuit is a lumped circuit bridged-T, which exhibits the properties of balance and isolation associated with bridge networks.

Abstract translation: 在波导中构造的混合T形结线，用于低于其截止频率。 混合动力的串联臂提供与混合动力的对称臂串联的并联谐振电路。 分流臂在串联臂的中点提供串联谐振电路。 等效电路是集成电路桥接器T，其具有与桥接网络相关联的平衡和隔离的特性。

公开(公告)号：US3859600A

公开(公告)日：1975-01-07

申请号：US40948773

申请日：1973-10-25

Applicant: INT STANDARD ELECTRIC CORP

Inventor： CRAVEN GEORGE FREDERICK ,  THOMAS RAYMOND RICHARD ,  BERGER MAURICE FRANCIS

IPC: H03D9/06 ,  H03D7/18

CPC classification number: H03D9/0616

Abstract: There is disclosed an evanescent mode waveguide mixer. A first length of evanescent mode waveguide is provided having one end coupled to a signal source and the other end coupled to a local oscillator. A resonant slot, either a longitudinal or a transverse resonant slot, is provided intermediate the two ends of the first length of waveguide so that the first length of waveguide between the resonant slot and the signal source constitutes an evanescent mode filter for coupling the signal of the signal source to the resonant slot and so that the first length of waveguide between the resonant slot and the local oscillator constitutes an evanescent mode filter for coupling the signal of the local oscillator to the resonant slot. A second length of waveguide is disposed at right angles to the first length of waveguide and disposed to receive energy through the resonant slot. A mixer diode is disposed in the second length of waveguide closely adjacent the resonant slot. The second length of waveguide is dimensioned to be evanescent at the mixer generated frequency and propagating at the mixer generated sum frequency. Reactance components are provided in the second length of waveguide beyond the mixer diode to provide independent adjustment to terminate the image and sum frequencies.

Abstract translation: 公开了一种ev逝模式波导混频器。 提供第一长度的消逝模式波导，其一端耦合到信号源，另一端耦合到本地振荡器。 谐振槽（纵向或横向谐振槽）设置在第一长度波导的两端之间的中间，使得谐振槽和信号源之间的波导的第一长度构成消逝模式滤波器，用于将 信号源到谐振槽，并且使得谐振槽和本地振荡器之间的波导的第一长度构成湮灭模式滤波器，用于将本地振荡器的信号耦合到谐振槽。 波导的第二长度设置成与波导的第一长度成直角并且设置成通过谐振槽接收能量。 混频器二极管设置在紧邻谐振槽的波导的第二长度中。 波导的第二长度的尺寸设定为在混频器产生的频率处消逝，并在混频器产生的和频率下传播。 在波导的第二长度超过混频二极管提供电抗分量以提供独立调整以终止图像和和频率。