Tag: embedded antenna

  • Launchpad: Navigation software, UAV and lidar systems

    Launchpad: Navigation software, UAV and lidar systems

    A roundup of recent products in the GNSS and inertial positioning industry from the March 2023 issue of GPS World magazine.


    UAV

    Image: InfiniDome
    Image: InfiniDome

    Anti-Jamming Device
    Provides protection from three directions of attack 

    The GPSdome 2 is tailored to defend small- to medium-sized tactical UAVs as well as manned and unmanned ground vehicles. With a small form factor (500 g, 87 mm x 91 mm x 61.55 mm) and minimal power consumption, GPSdome 2 is suitable for loitering munitions as well as UAVs. Fully retrofit and completely standalone, the system is compatible with almost any off-the-shelf GNSS receiver as well as standard active GNSS antennas, meaning that it can be integrated into existing GPS systems or into new product lines, manned or unmanned. With sophisticated algorithms and a proprietary RFIC, GPSdome 2 analyzes RF interference in the environment and combines multiple antenna patterns to create and dynamically steer three nulls in the direction of any hostile signal. GPSdome 2 provides simultaneous dual-frequency protection (GPS L1 + L2 or GPS L1 + GLONASS G1), creating up to three nulls, protecting from three jamming directions within each band in real time, making it suitable for PNT applications. The GPSdome 2 is a dual-use, non-ITAR device and comes with optional mil-spec compliance.
    InfiniDome, infinidome.com

    uAvionix.jpg
    Image: uAvionix

    Command and Control
    Designed for easy integration

    The SkyLine C2 management platform and muLTElink airborne radio systems (ARS) are designed to integrate, which enables a self-healing command-and-control network capable of both path and link diversity. This eliminates lost-link possibilities over broad terrain and altitude ranges. MuLTElink ARS consists of two models — muLTElink915 and muLTElink5060, the core of the uAvionix C2 system. The muLTElink915 model combines globally licensed aviation LTE, enhanced with frequency hopping 902 MHz – 928 MHz industrial, scientific and medical frequencies capability. The muLTElink5060 model combines global LTE with aviation-protected 5,030 MHz – 5,091 MHz C-band. Each muLTElink model allows up to one external CNPC radio to be optionally connected to allow simultaneous use of all three frequency ranges, higher power C-band operation or future radio integrations.
    uAvionix, uAvionix.com 

    Image: Atmos
    Image: Atmos

    VTOL UAV
    With Sony a7R mark III and IV camera 

    Atmos has integrated the Sony a7R mark III and IV cameras into its vertical take-off and landing (VTOL) fixed-wing UAV, the Marlyn Cobalt. This will increase coverage and accuracy achieved in a single flight for surveyors. Both cameras have an ISO of 32,000, which is expandable to 102,400, and camera sensors with high megapixel count — 42,4 MP for the a7R III and 61 MP for the a7R IV. When combined with Zeiss’ 35 mm and 21 mm lenses, it enables UAV surveyors to achieve ground sample distance levels below one 1 cm. The integration of the two cameras enables Marlyn Cobalt users to map an area of 210 ha with centimeter-level accuracy in a single flight.
    Atmos, atmosuav.com

    Trueview 720. (Image: GeoCue)
    Trueview 720. (Image: GeoCue)
    TrueView 535. (Image: GeoCue)
    TrueView 535. (Image: GeoCue)
    Accuracy Star. (Image: GeoCue)
    Accuracy Star. (Image: GeoCue)

    UAV and Lidar Systems
    Suitable for geospatial professionals 

    TrueView 535 consists of updated lidar sensors, adding a third return, increasing mapping abilities below canopy. An additional third nadir camera offers another point of view and improves photogrammetry quality. It also includes a longer, usable lidar range to increase flexibility. TrueView 720 is a fourth-generation Riegl VUX-120 with three laser beam orientations. It provides high-point density corridor mapping. Using the Riegl VUX-120 with three laser beam orientations (nadir, +10 degrees forward and –10 degrees backward) and three oblique/nadir cameras enables data collection from more surfaces in one flight path. One application of TrueView 720 is scanning power lines. Users can capture the poles vertically, front and back. The extreme range of this system means it can be integrated with UAVs, airplanes or helicopters. In addition to the two sensor payloads, GeoCue has launched its LP360 software add-on for processing and visualization — the 3D Accuracy and the Accuracy Star hardware.
    GeoCue, geocue.com

    OEM

    Image: Microchip
    Image: Microchip

    Voltage Regulator
    Device for LEO space application

    The MIC69303RT is a radiation-tolerant power management device for space application developers. It is a high-current, low-voltage device targeting low-Earth orbit space applications. The MIC69303RT operates from a single low-voltage supply of 1.65 v to 5.5 v and can supply output voltages as low as 0.5 v at high currents. It offers high-precision and low dropout voltages of 500 mv under extreme conditions. The MIC69303RT is a companion power source solution for microcontrollers, such as the SAM71Q21RT and PolarFire field-programmable gate arrays. MIC69303RT is designed for harsh aerospace applications and remains operational in temperature ranges from -55 C to +125 C.
    Microchip Technology, microchip.com

    Image: Spirent Communications
    Image: Spirent Communications

    LEO Satellite Device
    Designed for GNSS/PNT lab testing

    SimORBIT is a low-Earth-orbit (LEO) satellite solution software designed to aid developers in determining LEO orbits more accurately for GNSS/PNT lab testing. The software replicates LEO orbits so that simulations can provide the realistic environment of a LEO satellite, including gravitational and atmospheric impacts the satellite could encounter in space. Developers can create non-ICD signals via I/Q injection, or by the “Flex” feature, generating space-centered PNT signals to be developed in the lab as realistically as possible. Spirent Communications developed SimORBIT in partnership with SpacePNT.
    Spirent Communications, spirent.com

    Image: Sony
    Image: Sony

    5G Chipset
    Includes GNSS 

    The ALT1350 implements GNSS, cellular and Wi-Fi-based location in a single chipset. The cellular LTE-M/NB-IoT chipset is designed to enable additional low-power, wide-area (LPWA) communication protocols; intermittent LTE and GNSS (GPS/GLONASS) navigation for low-cost applications; and concurrent LTE and L1/L5 GNSS for tracking applications. The ALT1350 incorporates a sensor hub to collect data from the sensors while maintaining ultra-low power consumption. It also provides cellular and Wi-Fi-based positioning and is tightly integrated to provide power-optimized concurrent LTE and GNSS to accommodate various tracking applications, which can be demanding with a single chip. The chip is designed to enable deployments for the internet of things (IoT), including location technologies.
    Sony, altair.sony-semicon.com

    Image: Linx Technologies
    Image: Linx Technologies

    Embedded Antenna
    Supports multiple satellite constellations

    The ANT-GNL1-nSP is a surface-mount embedded GNSS antenna supporting GPS, Galileo, GLONASS, BeiDou and QZSS in the L1/E1/B1 bands. The ANT-GNL1-nSP antenna exhibits high performance in a compact size (10 mm x 8 mm x 1 mm) and features linear polarization and an omnidirectional radiation pattern. The antenna is available in tape and reel packaging and is designed for reflow-solder mounting directly to a printed circuit board for high-volume applications.
    Linx Technologies, linxtechnologies.com

    Image: OriginGPS
    Image: OriginGPS

    GNSS Module
    Based on a MediaTek chipset

    The ORG4600-MK01 dual-frequency module provides higher precision than the company’s previous modules. It has sub-1 m precision at a cost lower than that of the company’s first L1+L5 module, the ORG4600-B01, which is based on Broadcom’s chipset. The 10 mm x 10 mm ORG4600-MK01 was designed for applications deployed in challenging environmental conditions. The solution also includes RTCM, a logger and accurate orbit prediction.
    OriginGPS, origingps.com


    MAPPING

    Image: Mapbox
    Image: Mapbox

    Navigation Software
    Includes enhancements to existing software and more

    Navigation software development kit version 2.9 provides pre-built applications compatible with Android and IOS. SDK v2.9 provides the primary navigation components across a workflow using lines of code instead of starting from square one. The drop-in user interface is customizable to reflect a developer’s brand, obviating the need to manually develop a full end-to-end application. Navigation SDK Copilot — a backend analytics tool for CX on navigation applications — collects trace files of navigation sessions and search analytics data from users. Developers can use this data to gather feedback and collective user data to create touch points with users and improve application experience based on their data-drawn conclusions. Matrix API has been updated to support scheduled departure times and provide optimal driving routes, creating a more accurate estimated time of arrival.
    Mapbox, mapbox.com

    Image: Hexagon
    Image: Hexagon

    Defense Platform
    For developing Android applications 

    LuciadCPillar is designed for the development of mobile applications for dismounted soldiers in the field. Developers can build applications with 2D and 3D views. It features military symbology and supports many geospatial data types including vector data, raster data, elevation data, point clouds and 3D meshes. It has the same capabilities found in desktops, in-vehicle and browser applications built with LuciadLightspeed, LuciadCPillar and LuciadRIA. The platform offers capabilities to match high-resolution screens, graphic processing units and multi-core processors including the ability to display 3D data in mobile applications. LuciadCPillar supports ARM processors and an application programming interface, which aligns with the Android developer experience. Impact, a French system integrator, partnered with Hexagon to test LuciadCPillar and will integrate it into its Delta Suite product, which is used by the French Special Operations Command. LuciadCPillar is part of Luciad 2022.1, which is available now globally.
    Hexagon, hexagon.com

    Image: Golden Software
    Image: Golden Software

    Surface Mapping
    Designed for 3D surface mapping 

    The Surfer package is designed for 3D surface mapping and provides robust subsurface visualization and modeling functionality by incorporating many true 3D gridding and visualization tools. With the enhanced functionality, users can now model an additional variable, a C variable, such as a contaminant or chemical concentration, along with the traditional X, Y, Z values. Surfer also includes the ability to create a 2D map of a slice-through 3D grid, which users can move up and down through the grid, illustrating how the C value changes with depth. Part of Surfer’s enhancements is isosurface creation, enabling visualization of the 3D grid in the 3D view as an isosurface, providing another way to see how C data varies with depth or elevation. The new 3D-rendered volume functionality also allows users to visualize the 3D grid in the 3D view as a solid body by assigning colors to different C values, highlighting variations in the data.
    Golden Software, goldensoftware.com

     

  • Tallysman adds XF antennas to helical line

    Tallysman adds XF antennas to helical line

    The HC885EXF embedded helical antenna. (Photo: Tallysman)
    The HC885EXF embedded helical antenna. (Photo: Tallysman)

    Tallysman Wireless has added the housed HC885XF and embedded HC885EXF dual-band eXtended Filtering (XF) antennas to its line of helical antennas.

    The antennas receive GPS/QZSS L1/L5, GLONASS G1/G3, Galileo E1/ E5a/b, BeiDou B1/B2/B2a and L-band corrections services.

    Historically, dual-frequency antennas and receivers commonly supported GPS L1 and L2 and GLONASS G1 and G2. In recent years, GPS, GLONASS, Galileo, BeiDou and NavIC have added GNSS signals in the L5 frequency band (1160-1217 MHz).

    As a result, the new dual-frequency GNSS standard has become L1 and L5.

    Tallysman’s new HC885XF antenna has been tuned to provide optimal support for the entire L1/G1/E1/B1/L-band correction and L5/G3/E5/B2 bands.

    The radio frequency spectrum has become congested worldwide as many new LTE bands have been activated, and their signals or harmonic frequencies can affect GNSS antennas and receivers. In North America, the planned Ligado service, which will broadcast in the frequency range of 1526 to 1536 MHz, can affect GNSS antennas that receive space-based L-band correction service signals (1539-1559 MHz). New LTE signals in Europe [Band 32 (1452-1496 MHz)] and Japan [Bands 11 and 21 (1476-1511 MHz)] have also affected GNSS signals. Tallyman’s XF models mitigate the effects of these new signals.

    The Tallysman HC885XF housed helical antenna weighs ~42 g and is enclosed in a robust, military-grade IP67 plastic enclosure. The antenna base has an integrated SMA connector, a water-proofing O-ring, and three screw holes to enable secure attachment.

    Tallysman’s embedded HC885EXF helical antenna weighs ~8 g. It is easily mounted with an optional embedded helical mounting ring, which traps the outer edge of the antenna circuit board to the host circuit board or any flat surface. An MCX connector is installed in the base of the antenna.

    Tallysman HC885EXF and HC885XF antennas are suitable for a variety of applications, including lightweight unmanned autonomous vehicle navigation (land, sea, and air), land survey devices, automotive positioning, timing and other precise-positioning applications.

  • Maxtena offers active multi-frequency antenna

    Maxtena offers active multi-frequency antenna

    Photo: Maxtena
    Photo: Maxtena

    The M9708CWT-UFL from Maxtena is an active multi-frequency, high-accuracy, GNSS antenna for the L1/L2/L5 GPS, Galileo, Beidou and GLONASS bands. The antenna is designed for applications requiring greater accuracy than L1-only antennas can provide.

    The antenna’s excellent radiation pattern, exceptional out-of-band rejection, minimal group delay variation, and low noise figure ensures optimal performance of GNSS systems, according to Maxtena.

    The M9708CWT-UFL is designed for applications requiring minimal integration effort or for retrofitting existing products. The antenna is mounted on the inside of the application’s housing, allowing it to be hidden. The antenna element is custom tuned to the enclosure.

    Features of the M9708CWT-UFL:

    • Low profile design
    • Concurrent GNSS reception on:
    • L1: GPS, GLONASS, Galileo, Beidou
    • L2: GPS L2C, Galileo E5B, and GLONASS L3OC
    • L5: GPS L5, Galileo E5A
    • Small form factor
    • GIS, RTK and other high-accuracy GNSS applications
    • Low power consumption
    • Minimal phase-center variation over azimuth and elevation
    • Negligible group delay variation
    • Custom tuned to applications enclosure
  • Tallysman debuts mini embedded VeroStar GNSS antennas

    Tallysman debuts mini embedded VeroStar GNSS antennas

    Tallysman Wireless Inc. has added four new embedded VeroStar Mini products to its line of antennas. The ultra-compact and lightweight embedded VeroStar Mini models offer the same key features as the full-size VeroStar models but in a smaller, lighter package, with either a 90-mm (58 g) or 106-mm (69 g) integrated ground plane, both 32.4 mm in height.

    Innovation: Design and performance of a novel GNSS antenna for rover applications

    The VSM6028, VSM6028L, VSM6328 and VSM6328L embedded VeroStar Mini antennas are designed and crafted for high-accuracy positioning. With an exceptionally low roll-off from zenith to the horizon, VeroStar antennas provide the excellent tracking of GNSS and L-band correction signals at low elevation angles.

    The VSM6028 VeroStar antenna. (Photo: Tallysman Wireless)
    The VSM6028 VeroStar antenna. (Photo: Tallysman Wireless)

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

    The light and compact wide-band spherical antenna element enables the VeroStar Mini to deliver a ±2 mm phase center variation (PCV), making it suitable for high-precision applications such as autonomous vehicle navigation (land, sea, and air), smart survey devices, and maritime positioning.

    The VSM6028 supports the full GNSS spectrum (the VSM6028L includes support for L-band correction services), while the VSM6328 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 VSM6328L includes support for L-band correction services).

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

  • 
Tallysman offers AccuAuto embedded GNSS antennas for autonomous vehicles

    
Tallysman offers AccuAuto embedded GNSS antennas for autonomous vehicles

    Photo: Tallysman
    Photo: Tallysman

    Tallysman Wireless has added a line of AccuAuto vehicle antennas aimed at the autonomous vehicle market.

    The compact and rugged embedded AccuAuto antennas offer key features not available in other embedded autonomous vehicles antennas on the market, the company said.

    The automobile industry is transitioning from offering GNSS-assisted navigation where the accuracy requirement is ±3 to 5 meters (low-precision GNSS code positioning) to providing driver assistance (such as lane-keeping) and autonomous vehicle navigation where the accuracy requirement is < 0.1 meters (such as high-precision GNSS phase positioning).

    Current roof-mounted GNSS antennas on most vehicles provide the accuracy required for navigation but they lack the precision required for assisted driving or autonomous vehicle operation. Tallysman’s new line of AccuAuto antennas are designed to provide strong clean code and phase signals that enable high-precision real-time kinematic (RTK) and precise point positioning (PPP) navigation.

    The Tallysman embedded AccuAuto vehicle antenna features a patented Tallysman Accutenna technology multi-constellation and multi-frequency antenna element, an integrated ground plane, radome and underside cover that provides mist and condensation protection.

    The bottom cover also supports the antenna cable and mitigates cable vibration to ensure the antenna has a long service life, while the ground plane improves antenna performance.

    All AccuAuto antenna electronic components are Automotive Electronics Council (AEC) certified and are designed to perform under challenging environmental conditions, such as extreme temperatures (–40 °C to +125 °C) and continuous shock and vibration.

    Signal quality is improved with a deep pre-filter that minimizes out-of-band noise and maximizes in-band reception. This feature enables reliable GNSS signal reception in challenging urban environments, where inter-modulated signal interference from LTE and other cellular bands is common.

    The triple-band TWA928 supports 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 TWA928L includes support for L-band correction services).

  • 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.