GPS World

Tag: high-precision applications

  • Maxtena adds M9HCT-A-SMA multi-band GNSS antenna to helical family

    Maxtena adds M9HCT-A-SMA multi-band GNSS antenna to helical family

    Advanced multi-frequency antenna shaped for high-precision applications featuring L-band corrections

    Photo: Maxtena
    Photo: Maxtena

    Maxtena Inc. has introduced an advanced, tiny, patented GNSS antenna for high precision and autonomous multi-frequency applications. The M9HCT-A-SMA antenna is a high accuracy, multi-frequency active helix GNSS antenna + L-band corrections services.

    The design provides simultaneous GNSS reception in a rugged, compact, and ultra-lightweight form factor on:

    • L1: GPS, GLONASS, Galileo, Beidou
    • L2: GPS L2C, Galileo E5B, GLONASS L3OC
    • L5: GPS + L-band corrections

    The M9HCT-A-SMA is suitable for high-precision applications such as the UAV market, where high performance and low weight are driving features in antenna selection.

    The active helix design features Maxtena’s patented compact and lightweight Helicore technology. This technology provides excellent pattern control, polarization purity and high efficiency in a compact form factor.

    The M9HCT-A-SMA is ground-plane independent and offers extremely low power consumption and minimal phase-center variation over azimuth crafted for high-precision applications. The antenna offers superb axial ratio, ensuring multipath error is mitigated.

    For the embedded version, Maxtena provides support for installation and integration of the embedded antenna to offer an exceptional antenna performance. Maxtena can embed the antenna in any housing, then tune the antenna to match the housing’s materials, electronics, and space

    “The M9HCT-A-SMA combines all lower and upper GNSS bands including L1/L2/L5 across all constellations and features L-band corrections,” said Maxtena’s Chief Commercial Officer Vanja Maric. “At the same time, this antenna is the smallest solution with such a performance on the market. The superb axial ratio and multipath rejection allow the antenna to operate in the most RF noisy environments. We see a trend of higher accuracy demand across various industries from autonomous vehicles and robotics to commercial products such as lawn mowers and robotics using our antenna solution.”

  • Tallysman offers embedded full-band and triple-band GNSS antennas

    Tallysman offers embedded full-band and triple-band GNSS antennas

    Tallysman Wireless Inc. has added four embedded VeroStar products to its line of GNSS antennas. The compact and light embedded VeroStar models offer key features not available in many other embedded antennas on the market.

    Photo: Tallysman
    Photo: Tallysman

    The VSE6028, VSE6028L, VSE6328 and VSE6328L embedded VeroStar antennas are designed and crafted for high-accuracy positioning. With an exceptionally low roll-off from zenith to the horizon, VeroStar antennas provide tracking of GNSS and L-band correction signals at low elevation angles.

    The optimized axial ratio at all elevation angles results in excellent multipath rejection, enabling accurate and precise code and phase tracking.

    For details on the antenna and its development, see “Innovation” in the September issue.

    VeroStar antennas feature a robust pre-filter and high-IP3 LNA architecture, minimizing de-sensing from high-level out-of-band signals, including 700 MHz LTE, while still providing a noise figure of only 1.8 dB.

    Photo: Tallysman
    Photo: Tallysman

    The light (80 g) and compact (106 mm in diameter and 40 mm in height) wide-band spherical antenna element enables the VeroStar to deliver a ±2 mm phase centre variation (PCV), making it ideal for high-precision applications, such as autonomous vehicle navigation (land, sea and air), smart survey devices, and maritime positioning.

    The VSE6028 supports the full GNSS spectrum (the VSE6028L includes support for L-band correction services), while the VSE6328 supports the GPS/QZSS-L1/L2/L5, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b, BeiDou-B1/B2/B2a, and NavIC-L5 signals and frequency bands (the VSE6328L includes support for L-band correction services).

    The unique features of the VeroStar antennas deliver high signal-to-noise ratio (SNR), high accuracy, and high precision in challenging environments.