Abstract
In this paper are presented design and performance data on microwave Y–circulators and Gunn oscillators produced in thick-film technology. Y–circulators have been designed for central frequencies of 3, 5, and 10 GHz with a satisfactory accuracy. New Polish made ferrite substrates, G–32, G–84 K, and G–175 have been used.The Gunn oscillator was designed and corrected to the resonant frequencies 3, 5 and 6 GHz based on the integrated package diodes CXYP – 43 A and BXYP – 45 C (made in Poland). The results of the investigations are presented in tabular and graphical form.