TOKO DAKC1575MS74T

DAKC1575MS74T
GPS DIELECTRIC PATCH ANTENNA
Description
The TOKO #DAKC1575MS74T is a low profile, dielectric antenna
element specifically designed for 1575.42 MHz L1 GPS applications.
The flat patch antenna incorporates a rectanglar micro-strip design
for GPS C/A right-hand circular polarization wave reception. The
#DAKC1575MS74T has excellent stability and sensitivity through
the use of high performance ceramic materials well suited for GPS
applications and ships with double-sided adhesive tape for ease in
mounting to the ground plane.
Dimensions
25
0.5Max.
3-R0.5
4
1.7
ø0.8
3.3
Range of Receiving Freq: 1575.42±1.023 MHz
Center Frequency: 1580.5 MHz with 70mm2 GND plane1
Bandwidth: 9 MHz min. (Return Loss ≤ -10 dB)
Miniature footprint: 25mm x 25mm
Low Profile: 4.5mm
Gain (Zenith 90°): +5 dBi (typ.)
Gain (10° Elevation): -1 dBi (typ.)
Impedance: 50 Ω
Freq. Temperature Coefficient: 0±20ppm/°C max.
Operation Temperature: - 40°C to +105°C
Storage Temperature: - 40°C to +105°C
Lead-free terminated electrode (Part No. #DAKC1575MS74T)
1.9
•
•
•
•
•
•
•
•
•
•
•
•
25
Features
(Unit: mm)
C2
Typical Characteristics
Directivity Charts
Return Loss
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30
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60
00
3
6
10
30
330
60
300
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25
270
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240
150
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180
210
240
120
150
180
210
TX: Right Hand Circular Polalized Signal
Frequency = 1580.5MHz
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25
270 90
120
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300
20
20
90
330
15
15
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00
3
6
10
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Measured with 70mm sq. ground plane
NOTE 1: Center frequency is shifted approximately 5MHz down when covered with radome.
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture
of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or
other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
TOKO America, Inc.
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070 Fax: (847) 699-7864 Web: http://www.tokoam.com
April 2005
© 2005 TOKO America, Inc.
All Rights Reserved
Printed in USA
CF-293-DAKC1575
R-LOG0405A
1