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| 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.: 1575.421.023 MHz Center Freq.: 1580.5 MHz with 70mm2 GND plane1 Bandwidth: 9 MHz min. Miniature Footprint: 25mm x 25mm Low Profile: 4.5mm Gain (Zenith 90o): +5 dBi (typ.) Gain (10o Elevation): -1 dBi (typ.) Impedance: 50 Freq. Temperature Coefficient: 20ppm/oC max. Operating Temperature: -40oC to +105oC Storage Temperature: -40oC to +105oC 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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