62 “Some customers may prefer a passive antenna, particularly if they want to control the design of the RF front end themselves. But the advantage with our active architecture is that we’ve designed, engineered and validated all these components to work very efficiently together within this form factor, which will save customers a lot of RF engineering work while also [being able to] perform in challenging environments and provide high accuracy,” Proskauer said. “We designed the MIA-1227-1575A with efficiency and gain in mind, so it has a 50% efficiency and 32 dBi gain in both L1 and L2 frequency bands, which is not typical on these type of patches. Normally, you’d need a bigger patch that won’t perform as well, which will also translate into a heavier and more expensive UAV. We are also working on developing GPS-denied solutions for UAV and UGV applications.” T-Motor showcased its new I7 products, which are its latest fullyintegrated propulsion solutions for professional UAV manufacturers and integrators, consisting of electric motors, propellers and ESCs designed and preintegrated onto a rotor arm. By directly integrating the ESC into the motor, the design eliminates the need for a controller wiring harness and mechanical housing, enhancing space utilisation and energy density. The ESC also includes a risk-control function that performs self-checks before flight for common drone hazards, significantly improving flight safety. “The ESCs built into these systems support two channels of communication: one is the traditional PWM and the other is a CAN bus interface,” said Travis Ma. “Customers have been asking us for more CAN-compatible solutions, so with the I7, we’re releasing our first integrated propulsion units with the CAN protocol, as well as being our first products with both PWM and CAN. So UAV engineers can use whichever one they want, or perhaps use the simpler PWM during development and then switch to the more sophisticated CAN later on.” The I7 series includes single-motor and dual coaxial motor designs, and it can be customised to user requirements. The I series propeller additionally features a quick-release design and advanced materials, which the company says reduces noise by about 15%, compared with standard propellers. The company also exhibited its A Series modular propulsion systems, which mechanically and modularly combine motors and ESCs. They are initially slated for use in agricultural UAVs. “Every product in the A Series has a high IP rating, so that means significant water and dust-proofing to help them work safely and consistently in fields, whether surveying or spraying very close to the ground,” Ma said. “The A series is a new, modular power system for multi-rotor UAVs. There are 32 models – both coaxial and standard – from the A series, with a rated thrust range of 2-60 kg, and supporting 14S, 18S and 24S battery packs. It also scales for UAVs sized from 8-10 kg MTOWs, all the way up to very heavy, high-power multirotor aircraft carrying up to 70 L of agricultural chemicals per flight.” Netherlands-based UAS manufacturer Acecore Technologies showcased the latest version of its George GCS, a handheld tablettype solution for mission planning and management for uncrewed vehicle operations. “This is version two of our George controller, replacing the first version, as we’ve made changes to greatly improve the ergonomics. The GCS has a squarelike shape for convenient storage and a much more comfortable hold, made from moulded carbon fibre rather than the square carbon plates in version one,” said Marvin van Lith. “Additionally, the last version had an integrated battery in the case. This one makes use of a weather-sealed, V-Lock battery case on the back, which enables hot-swapping of any batteries with the V-Lock interface standard, so it’s way easier to keep constant power in the field. The back also mounts detachable harness holders for operators to suspend George from their necks using a harness, December/January 2025 | Uncrewed Systems Technology Maxtena’s MIA-1227-1575A, a new dual-frequency GPS patch antenna T-Motor’s A Series modular propulsion systems are initially slated for use in agricultural UAVs and other multi-rotors
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