公开(公告)号：EP1376748A1

公开(公告)日：2004-01-02

申请号：EP03253891.0

申请日：2003-06-19

Applicant: COM DEV LTD.

Inventor： Thomson, R Glen ,  Yu, Ming

IPC: H01P3/12

CPC classification number: H01P3/12 ,  H01P1/2138

Abstract: A waveguide assembly for operation over a range of temperatures includes a waveguide body and a plurality of restraining strips coupled to the waveguide body. The waveguide body includes a pre-curved narrow sidewall of material having a first coefficient of thermal expansion (CTE). The restraining strips are coupled to the waveguide body at first and second lateral points on either side of the pre-curved narrow sidewall laterally and are spaced apart along the length of the waveguide body, and are made from a material having a second CTE much less than the first CTE. Thus, when the temperature of the waveguide assembly changes, the restraining strips maintain a substantially constant lateral distance between said first and second lateral points over the range of temperatures such that as the length of the waveguide varies with temperature, the curvature of the pre-curved narrow sidewall also changes, causing the effective large dimension of the waveguide assembly to vary such that the combination of said changes results in a constant phase length for said waveguide body.

Abstract translation: 用于在一定温度范围内操作的波导组件包括波导体和耦合到波导体的多个约束条。 波导体包括具有第一热膨胀系数（CTE）的材料的预弯曲窄侧壁。 约束条在预弯曲的窄侧壁的侧面上的第一和第二横向点处在波导体上耦合，并且沿着波导体的长度间隔开，并且由具有第二CTE的材料制成 比第一个CTE。 因此，当波导组件的温度改变时，限制条在温度范围内在所述第一和第二横向点之间保持基本恒定的横向距离，使得随着波导的长度随着温度而变化， 弯曲的窄侧壁也改变，导致波导组件的有效大尺寸变化，使得所述变化的组合导致所述波导体的恒定相位长度。

公开(公告)号：EP1187247A3

公开(公告)日：2003-07-09

申请号：EP01120503.6

申请日：2001-08-28

Applicant: COM DEV LTD.

Inventor： Fitzpatrick, William ,  Yu, Ming ,  Smith, David ,  Sivadas, Apu

IPC: H01P1/208 ,  H01P7/06

CPC classification number: H01P1/208

Abstract: An externally temperature-compensated microwave resonator comprises a microwave resonator and an external temperature compensator. The microwave resonator is a multi-cavity waveguide. The cavities are configured side-by-side and coupled through irises. The external temperature compensator is oriented and configured to effect a change in volume of the cavities when the resonator and compensator undergo a temperature gradient. The compensator deflects a wall portion of the resonator to accordingly counteract a change in volume of the cavity caused by a temperature gradient.