Two-port element thermal phase variation compensator - is connected in cascade with controlled unit and having opposite-sense thermal variation based on quartz substrate

摘要

Method is to compensate thermal phase variations in the transfer function of a distributed-parameter two-part device (LR). The device (LR) is cascaded with and placed in the same room as a distributed-parameter device (DC) having thermal phase variations of the same magnitude and opposite sign. A device (DC) able to achieve the above method consists of a distributed-parameter circuit in which the propagation medium presents a dielectric constant variation coefft. with temp. such that it causes a phase variation in the transfer function of opposite sign to that occurring in the two-part device (LR).