M7HCT-A-EMB MAXTENA | Alldatasheet

Document overview

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Technical content

Features

  • Quadrifilar helix antenna
  • Concurrent GNSS reception on L1: GPS, GLONASS, Galileo, Beidou and L2: GPS L2C, Galileo E5B, and GLONASS L3OC
  • Small form factor
  • Ground plane independent
  • GIS, RTK and other high accuracy GNSS

applications

  • Low power consumption
  • Low phase center variation over azimuth and elevation and among different samples
  • Ultra-lightweight
  • Automotive grade electronics
  • Timing applications
  • Military and security
  • Utility electric grid synchronization
  • Positive train control (PTC) networks
  • Public safety communications
  • Fixed installations The M7HCT-A-EMB is Maxtena’s latest high performance active embedded antenna de- signed for L1/L2 GPS, GLONASS, Galileo, and Beidou bands. The antenna is designed for applications requiring greater accuracy than what L1 only antennas can provide. The antenna is built on proprietary Maxtena Helicore® technology. This technology provides exceptional pattern control, polarization purity and high efficiency in a very compact form factor. It is an embedded antenna design, featuring an SMA connector. This antenna has superior filtering performance and is rated for 50 V/m out of band interference. The M7HCT-A-EMB is ideal for UAV, UGV and high precision applications and is GNSS receiver agnostic. Embedded Active antenna L1: GPS, GLONASS, GALILEO, BEIDOU L2: GPS L2C, GALILEO E5B, GLONASS L3OC Passive Antenna Performance (L2, B2, G2, G3, E5B) Parameter Frequency 1192-1231 MHz 46% Polarization RHCP Realized Gain 1.1 dB Axial Ratio Max 1.2 dB at the Zenith VSWR Max 2:1 Beamwidth 135˚ Passive Antenna Performance (L1, B1, B1-2 G1, E1) Parameter Frequency 1559-1606 MHz 49% Polarization RHCP Realized Gain 0.5 dB Axial Ratio Max 0.9 dB at the Zenith VSWR Max 2:1 Beamwidth 125˚ Parameter Operating Temperature Range -40 to +105˚C Cabling and Connector No cable, male SMA connector

Conducted Gain 30 dB ±3 dB Noise Figure 1.5 dB typical, 2 dB max Voltage 3.0 to 5.0 V Current 25 mA max Out of Band Rejection 40 dBc Group Delay Variation Less than 5ns over GNSS bands EMI Immunity Out of Band 30 V/m ESD Circuit Protection 15 kv human body model air discharge Maxtena Inc.

7361 Calhoun Place, Suite 102

Rockville, MD 20855 1-877-629-8362 info@maxtena.com www.maxtena.comUpdated: February 24, 2019 | Page 2 of 6

Maxtena Inc. Rockville, MD 20855 1-877-629-8362 info@maxtena.com www.maxtena.com A 135 degree beamwidth ensures excellent hemispherical coverage. Symmetric coverage even in low elevation enhances accuracy. Maxtena’s M7HCT-A-EMB has unique features that make it the best option for high-accuracy GNSS applications. 1. Low axial ratio not only at the zenith, but also in other elevation angles ensures multipath error is mitigated. 2. Full hemispherical coverage is achieved by an exceptionally large 3 dB beamwidth, ensuring full view of sky and satellites in lower elevation angles. 3. Highly symmetric radiation pattern guarantees there will be no direction of weak reception or blind spots. Updated: February 24, 2019 | Page 2 of 6 L2 band radiation patterns WIRELESS INNOVATIONS COMPANY RHCP Realized Gain [dBic] - Elevation Cuts RHCP Realized Gain [dBic] - Azimuth Cuts Axial Ratio [dB] - Zenith Axial Ratio [dB] - Azimuth Cuts

Maxtena Inc. Rockville, MD 20855 1-877-629-8362 info@maxtena.com www.maxtena.com A 125 degree beamwidth ensures excellent hemispherical coverage. Symmetric coverage even in low elevation enhances accuracy. L1 band radiation patterns Maxtena’s M7HCT-A-EMB uses patented Helicore technology which results in minimal dependence on frequency and features a wide beamwidth, low axial ratio and radiation pattern symmetry across all desired frequencies in L1 and L2 bands. Updated: February 24, 2019 | Page 3 of 6 RHCP Realized Gain [dBic] - Elevation Cuts RHCP Realized Gain [dBic] - Azimuth Cuts Axial Ratio [dB] - Zenith Axial Ratio [dB] - Azimuth Cuts

Maxtena Inc. Rockville, MD 20855 1-877-629-8362 info@maxtena.com www.maxtena.com Flat conducted gain response. < 2 ns group delay variation over L2-band. < 2 ns group delay variation over L1-band. Updated: February 24, 2019 | Page 5 of 6 Excellent Group Delay Variation Filtering and LNA Performance Using GPS signal carrier phase to increase accuracy in GNSS applications has been proven reliable and has made mm-level accuracy possible. However, in resolving carrier phase ambiguity, it is necessary to make sure carrier phase is received and measured accurately and that the effect of antenna and receiver on carrier phase is minimized. Maxtena’s M7HCT-A-EMB has a flat response over all GNSS bands that it covers and has minimal group delay variation over frequency. Maxtena’s M7HCT-A-EMB antenna has a flat response over both L1 and L2 GNSS bands, with less than 1 dB variation over each band. The superior out-of-band rejection ensures minimal interference.

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