公开(公告)号：US5867077A

公开(公告)日：1999-02-02

申请号：US815223

申请日：1997-03-12

Applicant: Steven Barton Lundquist

Inventor： Steven Barton Lundquist

IPC: H01P1/207 ,  H01P1/208 ,  H01P1/30

Abstract: A temperature compensated microwave filter has end caps and irises that each contain a projection that extends into a cavity to reduce the volume change of the cavity that would otherwise occur with changes in temperature due to an expansion or contraction of the side walls. The end caps and irises are formed from a single material. The material has a more positive coefficient of thermal expansion than the coefficient of thermal expansion of the side walls of each cavity. While one material is used to make up each end cap or iris, it is not necessary that the same material be used for all of the end cap and iris components.

Abstract translation: 温度补偿的微波过滤器具有端盖和虹膜，每个端盖和虹膜各自包含延伸到空腔中的突起，以减小否则由于侧壁的膨胀或收缩而随温度变化而发生的空腔的体积变化。 端盖和虹膜由单一材料形成。 该材料具有比每个腔的侧壁的热膨胀系数更正的热膨胀系数。 虽然使用一种材料来构成每个端盖或虹膜，但是对于所有端盖和虹膜部件都不需要使用相同的材​​料。