FREQUENCY DISCRIMINATOR CIRCUIT EMPLOYING DIELECTRIC REZONATÖR AND HYBRID RING

Abstract

Soon after low-loss ceramic dielectric material with controllable temperature coefficients was available at reasonable cost, the dielectric resonator became a widely employed component in microwave circuits, predominately in filters and solid-state oscillators. Even though it is not very common, in recent years dielectric resonator applications can also be seen in frequency discriminator circuits. This paper presents a planar circuit realization of a frequency discriminator based on single-mode TE01δ operation of the dielectric resonator and a hybrid ring and temperature coefficient measurements for the center frequency of the discriminator characteristic. The designed circuit has high temperature stability and the reduction in physical size and cost of manufacturing is substantial when compared to the waveguide and cavity version. Theoretical analysis and experimental results of the S-curve characteristics of the designed circuit are also presented.

Keywords

• Dielectric resonator, Frequency discriminator, Temperature stability

DİELEKTRİK REZONATÖR VE HİBRİD RİNG KULLANILARAK GERÇEKLEŞTİRİLEN FREKANS DİSKRİMİNATOR DEVRESİ

Abstract

frequency discriminator based on single-mode TE01δ operation of the dielectric resonator and a hybrid ring and temperature coefficient measurements for the center frequency of the discriminator characteristic. The designed circuit has high temperature stability and the reduction in physical size and cost of manufacturing is substantial when compared to the waveguide and cavity version. Theoretical analysis and experimental results of the S-curve characteristics of the designed circuit are also presented

Keywords

• Dielektrik rezonatör, Frekans diskriminatörü, Sıcaklık kararlılığı

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