DA2492S25.pdf 데이터시트 (총 5 페이지) - 파일 다운로드 DA2492S25 데이타시트 다운로드

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Product Introduction
Token (DA) Dielectric Patch Antenna Technology Makes
The List.
Features :
Small patch dimensions.
Using high quality factor.
Stabilized temperature coefficient.
Provide highly stabilized performance.
Applications :
Global Positioning Systems (GPS)
GPS Hold, Car Navigation System, GPS PDA.
W-LAN.
Dielectric antenna is fed using coaxial ceramic media. By a
coaxial extension of the inner conductor to form an oscillator,
used to excitation of electromagnetic waves, the sleeve of the
role of the media, except clamping bar, the more important is the
reflection of electromagnetic waves, thus ensuring the incentives
from the coaxial line inner conductor of electromagnetic waves
to the free end of dielectric rod transmission.
Token use of low-loss dielectric antennas, high-frequency
dielectric material, strict process control, apply to the Global
Positioning System (GPS), radio broadcast system of small
antenna elements.
Token electronics manufacturing dielectric patch antenna with rectangular micro strip antenna design
and offset one point feeding method for Global Positioning System GPS, media filters, multi-layer
filters, cavity filters, band-pass filter, military filters, high-frequency filters and so on, in line with
RoHS standards.
(DA) series of microwave antenna, which provides clients a custom design and deliver smaller
tolerances. Dielectric antenna application specific design, but also for the frequency requirements,
including different inductance values and Q specifications adjusted.
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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Typical Specifications
Typical Specifications (DA)
Part Number
DA1575S25T4A
Size
(mm)
25*25*4
Center
Frequency
(MHz)
1575
Band width Gain
(MHz)
(dBi)
≥10 4.5
DA1575S25T4B
25*25*4
1575
≥10
4.5
DA1575S25T2B
25*25*2
1575
≥10
4.5
DA1580S25T4A
25*25*4
1580
≥15
4.5
DA1580S25T4B
25*25*4
1580
≥15
4.5
DA1580S25T2B
25*25*2
1580
≥15
4.5
DA1580S18T4
18*18*4
1580
≥10
3.0
DA1580S18T2
18*18*2
1580
≥10
3.0
DA1580S13T4
13*13*4
1580
≥5
0.0
DA2450S13T4
13*13*4
2450
≥5
0.0
DA2450S13T2
13*13*2
2450
≥5
0.0
DA1575S36T4
36*36*4
1575
≥30
5.0
DA2450D16
Φ16
2450
45
2.1
DA1616S25(Tx)
25*25*4
1616
≥10
4.0
DA2492S25(Rx)
25*25*4
2492
≥10
4.0
Note: Customer's specification, custom design, or ODM are welcomed on request.
Ground Plane
(mm)
35*35
70*70
70*70
35*35
70*70
70*70
50*50
50*50
50*50
50*50
50*50
80*80
50*70
70*70
70*70
Application
GPS
W-LAN
Beidou Satellite
Position System
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 (DA)
(DA) Dimensions I
(DA) Dimensions II
http://www.token.com.tw
rfq@token.com.tw
Taiwan Factory: +886 2 29810109
China Factory: +86 755 26055363
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Typical Characteristic
Typical Characteristic (DA)
(DA) Typical Characteristic
Order Codes
Order Codes (DA)
DA 1580
Dielectric Patch Antenna Center Frequency
S
Structure
18
Dimensions
T2
Thickness
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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