DAK1575MS50T
GPS DIELECTRIC PATCH ANTENNA
DESCRIPTION
The TOKO DAK1575MS50T is a low profile, dielectric
antenna element specifically designed for 1575.42 MHz L1
GPS applications. The flat patch antenna incorporates a
rectangular micro-strip design for GPS C/A right-hand
circular polarization wave reception. The DAK1575MS50T
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.
FEATURES
Range of Receiving Freq.:
1575.42±1.023 MHz
Center Freq.:
1580.5 MHz with 70mm
2
GND plane
1
Bandwidth:
9 MHz min.
Miniature Footprint:
25mm x 25mm
Low Profile:
4.5mm
Gain (Zenith 90
o
):
+5 dBi (typ.)
Gain (10
o
Elevation):
-1 dBi (typ.)
Impedance:
50
Ω
Freq. Temperature Coefficient:
20ppm/
o
C max.
Operating Temperature:
-40
o
C to +105
o
C
Storage Temperature:
-40
o
C to +105
o
C
DIMENSIONS
Units: mm
TYPICAL CHARACTERISTICS
Return Loss
Directivity Charts
NOTE 1:
Center frequency is shifted approximately 5MHz down when covered with a 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 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, Mt. Prospect, IL 60056
Tel: 800-PIK-TOKO or 847-297-0070 Fax: 847-699-7864 Web: http://
www.tokoam.com
May 2002
2002 TOKO America, Inc.
All Rights Reserved
Printed in USA
CF-247-DAK1575
1
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