Standard Precision Single Band Passive GNSS Antenna

Introduction
Key Features
Parameters
Applications
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Introduction

The patch antenna with compact size incorporates a rectangular micro-strip design for GPS C/A right-hand circular polarization wave reception, featuring low RL, low Axial Ratio and high gain, etc.

Compact 25×25×4 mm patch antenna design
Ideal for B1/L1 positioning applications
Low reflection loss for stable signal performance
Low axial ratio
High gain for reliable satellite signal tracking

Key Features

Compact Patch Design for Easy Integration

DAS1568R25F14-B1L1-A adopts a compact 25 × 25 × 4.0 mm square dielectric patch structure, making it well suited for space-constrained positioning terminals and embedded GNSS devices. Its flat, compact form factor helps simplify antenna integration while maintaining reliable performance.
Reliable GPS Signal Reception

This antenna supports GPS L1 and COMPASS B1 frequency reception, covering 1575 MHz and 1561 MHz bands. With a 1590 MHz center frequency on the specified B1L1-A ground plane, it is designed to provide stable satellite signal reception for positioning and navigation applications.
Excellent RHCP Performance for GNSS Applications

The antenna uses right-hand circular polarization, which is well matched to GNSS satellite signal characteristics. Its low axial ratio helps improve polarization efficiency and supports more stable signal acquisition in practical operating environments.
High Gain with Low Signal Reflection

DAS1568R25F14-B1L1-A features typical zenith gain of ≥3.0 dBi, VSWR ≤1.5 at center frequency, and bandwidth ≥9.0 MHz under return loss ≤-10 dB. These characteristics help deliver efficient signal reception, reduced mismatch loss, and reliable GNSS tracking performance.