?All Rights Reserved
Taoglas Limited, Unit 3 Enniscorthy Technology Centre, Enniscorthy, Co. Wexford, Ireland
www.taoglas.com
1.0 Introduction
Designed for embedded (inside device) integration with GPS receiver modules, the AP.25B
combines a 25*25*2mm advanced low profile ceramic patch antenna with a one stage LNA and
ultra thin coaxial cable. The Ground Plane size of 35*35mm gives this solution a performance
increase in gain of 1~2dB. It also helps shields the patch antenna from noise. Taoglas active
antenna modules utilise XtremeGain" technology for the highest sensitivity in the industry.
The AP.25B has been optimized for telematics, asset tracking, navigation, and remote
monitoring applications or simply any GPS device that requires high performance and needs
quick, relaible and consistent lock. It has been designed to sit directly above the main board
adhered to the underside of the plastic housing. The is a constant Voltage Regulator built into the
LNA integrated circuit this allows any device using the AP.25B to benefit from Lower Power
Consumption.
2.0 Specification
Patch Antenna
Frequency
1575.42 ? 1.023MHz
Antenna Gain
90? 2.0 dBi Min.
20? -5.0 dBi Min
Mounted on a 60*60mm Ground Plane
Polarization
RHCP
Axialration
90? 4.0 dBi Max.
Mounted on a 60*60mm Ground Plane
Patch Dimension
25mm x 25mm x 2mm
LNA
Frequency
1575.42 ? 1.023MHz
Gain
Typ. 15dB ? 2.5dB (+25癈?癈)
Output Impedance
50?
Noise Figure
Max 1.5dB (+25癈?癈)
Max: 2.2dB (+85癈)
Output VSWR
2.0 Max
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