Embedded Full-Band GNSS Helical Antenna for UAVs

Tallysman Wireless Inc. has added its first full-band GNSS antenna to its line of helical antennas. The HC990E embedded helical antenna is designed for precise positioning, covering the GPS/QZSS-L1/L2/L5, QZSS-L6, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b/E6, BeiDou-B1/B2/B2a/B3, and NavIC-L5 frequency bands, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN(India)], as well as L-band correction services.

Tallysman HC990E

Tallysman HC990E

The HC990E is packaged in a light, compact form factor, suiting it for a wide variety of applications, especially lightweight unmanned aerial vehicle (UAV) navigation.

The antenna measures 60 mm wide and 25 mm tall and weighs 12 g. It features a precision-tuned helical element that provides an excellent axial ratio and operates without the requirement of a ground plane. The HC990E also features a low-current, low-noise amplifier (LNA) and pre-filter to prevent harmonic interference from high-amplitude signals, such as 700 MHz band LTE and other nearby in-band cellular signals.

The HC990E antenna base has a flying lead with a UFL connector. To facilitate installation, Tallysman provides 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. Tallysman also supports the installation and integration of embedded helical antennas to enable successful implementation and provide optimal antenna performance.