DR20.pdf 데이터시트 (총 5 페이지) - 파일 다운로드 DR20 데이타시트 다운로드

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Product Introduction
Token coaxial resonators (DR) are the cornerstone of RF
microwave communications.
Features :
High quality factor.
High dielectric constant.
Low temperature coefficient.
Wide range of resonant frequency.
Applications :
CDMA/PCS/WLL/IMT2000.
Filters, Duplexer, Oscillators (DRO/VCO).
Wireless headphone, wireless security system.
900MHz, 1.8GHz, 2.4GHz, 5.8GHz wireless phone.
(DR) is a kind of microwave components, also known as ceramic
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 micro strip 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 (DR) 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
parallel 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.
(DR) series 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. Token (DR) series
features with small size, high temperature stability characteristics. Indirectly, (DR) series is suitable for
a variety of microwave communications equipment, particularly suitable for PCS / PCN filters, base
stations, radar detectors, satellite broadcast reception systems, military microwave facilities. Comply
with RoHS standards.
Custom parts are available on request. Token will also produce devices outside these specifications to
meet specific customer requirements, contact us with your specific needs. For more information,
please link to Token official website Dielectric resonators.
http://www.token.com.tw
rfq@token.com.tw
Taiwan Factory: +886 2 29810109
China Factory: +86 755 26055363
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Dimensions
Dimensions (Unit: mm) (DR)
Part Number W(O/D)
A(I/D)
DR120
12.0±0.2
Φ4.0±0.2
Φ3.55±0.2
DR100
10.0±0.2
Φ3.3±0.2
DR80
8.0±0.2
Φ2.7±0.2
Φ2.5±0.2
DR60
6.0±0.2
Φ2.2±0.2
Φ2.0±0.2
DR50
5.0±0.2
Φ1.8±0.2
Φ1.5±0.2
Φ1.8±0.1
DR40
4.0±0.1
Φ1.5±0.1
Φ1.2±0.1
DR30
3.0±0.1
Φ1.0±0.1
DR20
2.1±0.1
Φ0.6±0.1
B
without tab
1.5
1.3
1.3
without tab
without tab
1.2
1.0
1.0
0.8
without tab
without tab
0.7
0.5
C
3.2
3.0
2.6
2.4
2.2
1.8
1.5
1.2
T
1.0
1.0
0.7
0.7
0.6
0.6
0.5
0.5
(DR) Dimensions
http://www.token.com.tw
rfq@token.com.tw
Taiwan Factory: +886 2 29810109
China Factory: +86 755 26055363
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Available Range of TEM Mode
Available Range of TEM Mode (DR)
Material
Dielectric
Constant
A Series 21±1
B Series 36±1
C Series 90±2
Tf [1]
0±10
0±10
0±10
Type
DR120
DR100
DR80
DR60
DR50
DR40
DR30
DR20
DR120
DR100
DR80
DR60
DR50
DR40
DR30
DR20
DR120
DR100
DR80
DR60
DR50
DR40
DR30
DR20
Characteristic
Impedance (Ω)
15 17
16
15
12 14 15
14 17
11 14 17
15
17
12 13
12
12
10 11 12
11 13
9 11 13
12
13
7 8
7
7
6 7 7
7 8
6 7 8
7
8
Wave
Length
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/4
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/4
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/2
λ/4
λ/4
Frequency
Range (MHz)
800~1300
1600~2700
800~1300
1600~3200
1000~3200
2000~3000
1000~2700
2000~3000
1300~3000
2500~4000
1300~4000
2500~4000
1900~4000
2800~5000
600~1000
1200~2400
600~1200
1200~2400
800~1500
1600~3000
800~1800
1600~3500
800~1800
1600~3500
1000~2700
2000~4800
1300~3000
1300~3000
400~800
800~1500
600~800
1200~2400
440~1000
1000~1500
440~1300
1000~2200
500~1800
1000~3000
900~1600
2000~4800
900~1600
900~1600
[1] Frequency stability of temperature.[2] Q value depends on lower limit of frequency range.
Q [2]
(min)
800
1000
700
800
650
700
550
600
450
500
380
400
320
250
700
900
600
800
500
700
450
550
380
450
320
400
220
220
650
700
550
650
450
550
400
470
380
450
200
300
250
150
http://www.token.com.tw
rfq@token.com.tw
Taiwan Factory: +886 2 29810109
China Factory: +86 755 26055363
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Order Codes
Order Codes (DR)
DR 30
A
1
W4
Dielectric
Resonators
Part Number
Dimension
Material
Impedance
1
2
3
Wave Length
W2 λ/2
W4 λ/4
2533
Center
Frequency
(MHz)
T
Configuration
T tab
N without
tab
http://www.token.com.tw
rfq@token.com.tw
Taiwan Factory: +886 2 29810109
China Factory: +86 755 26055363
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General Information
Advantage of Token's Microwave Dielectric Components
New Microwave Dielectric Materials for Wireless Communication from Token Electronics
"Everything from the electromagnetic properties to microstructure of the material is important for the
final result"
A small ceramic component made from a dielectric material is fundamental to the operation of filters
and oscillators in several microwave systems, such as satellite TV receivers, military radar systems,
Global Positioning System (GPS) devices, and mobile communications. Token Electronics had been
able to develop specialized piezoelectric materials which lead to more reliable and clearer microwave
communication signals.
In microwave communications, dielectric components are used to discriminate between wanted and
unwanted signal frequencies in the transmitted and received signal. When the wanted frequency is
extracted and detected it is necessary to maintain a strong signal nevertheless. For clarity it is also
critical that the wanted signal frequencies are not affected by seasonal temperature changes.
The resonator materials for practical applications have to have certain key properties. A high relative
dielectric constant is needed so that the materials can be miniaturized and a high quality factor (Q) is
needed for improved selectivity. Low temperature variation of the material’s resonant frequency is also
required so that the microwave circuits remain stable.
Although large numbers of ceramic dielectric materials have been developed, it has proven difficult to
satisfy all these requirements in a single material at a reasonable cost. "Token takes the advantages of
these new materials that they are relatively cheap compared with some of the compounds currently
used and in the future they can be improved even further by suitable additives and by optimizing the
preparation conditions."
Dielectric Material Composition & Study
The new dielectric materials developed by Token, are based on ceramics formed by baking the pressed
powdered starting material mixture in a furnace at between 1200 and 1550 degrees Celsius.
Token Engineers used X-ray diffraction studies, Raman spectroscopy and scanning electron
microscopy to reveal the structure of the ceramics. The materials have the general formula
Ce(M1/2Ti1/2)O3.5. Ce is the element cerium, Ti is titanium and O is oxygen. "M" represents any one
of the metals magnesium, zinc, calcium, cobalt, manganese, nickel or tungsten. The numbers refer to
the proportions of each element in the ceramic.
"Further work is in progress to find the exact composition, internal structure and secondary phases in
the ceramics".
Token's Service & PDF Catalogue Download
Token reliably deliver high-quality microwave dielectric components according to the each customer
special needs with respect to performance, costs, and technology modifications.
For marketing discontinuations or sourcing activities concerning dielectric products, you are
encouraged to contact our Sales Department so the request can be properly directed within Token.
http://www.token.com.tw
rfq@token.com.tw
Taiwan Factory: +886 2 29810109
China Factory: +86 755 26055363
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