DR30A1W22533T Datasheet, PDF (1/5 Pages) Token Electronics Industry Co., Ltd. – DR Dielectric Coaxial Ceramic Resonators

TOKEN DR Dielectric Coaxial Ceramic Resonators
Dielectric Coaxial
Ceramic Resonators
Token Ceramic Coaxial Resonators (DR)
Is The Cornerstone of RF Microwave Communications
Preview
Dielectric ceramic resonator is a kind of microwave components, also known as coaxial resonator, Token
electronics manufacturing dielectric resonator (cylindrical, ring), coaxial resonator (rectangular cavity, cylindrical
cavity, coaxial cavity resonator), microwave resonator, etc. It is made high-Q dielectric ceramics, temperature
coefficient is good, mainly used in microwave oscillators and filters.
Dielectric resonator size and dielectric material is inversely proportional to the square root of the dielectric
constant, dielectric materials, dielectric constant the greater the required dielectric ceramic block the smaller, thus
the smaller the resonator size. Another important parameter is the insertion loss, low dielectric loss microwave
dielectric materials, dielectric filters that affect the insertion loss of a major factor. Microwave dielectric Q value
and dielectric loss is inversely proportional to the relationship. Q value is greater the lower the filter insertion
loss.
Therefore, the microwave dielectric ceramic materials of high dielectric constant is conducive to the
miniaturization of microwave dielectric filters, can filter with the microwave tube, a microstrip line realization of
microwave hybrid integrated circuit, so that the device dimensions to mm order of magnitude, the price is also
much lower than the metallic cavity.
The coaxial resonator impedance used in TEM mode is direct function of its dimensions and of the dielectric
material permittivity. Token coaxial ceramic resonators provide the customers with high Q higher parellel
resonant impedance and better temperature characteristics than inductor coils and associated lumped constant
elements used in RF amplifiers and oscillators circuits. According to dielectric resonator frequency stabilization
mechanism, using dielectric resonator stabilized FET oscillator frequency (also referred to DRO) can be
classified into 4 types, namely, reflective, band-reject type, transmission type and feedback type.
Coaxial Resonator named by the internal and external, between the inner and outer conductor filling a variety
of dielectric ceramics to be dielectric ceramic coaxial resonator name. It is longer than the length of the unfilled
resonator is much smaller. Coaxial resonator with two ports, depending on port different boundary conditions,
in accordance with the basic structure of the resonator is divided into three types: half-wavelength type, quarter-
wavelength type, and capacitive load type, each structure each with distinct characteristics.
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