03 / Application Domain

Low-Altitude Hangars & Vertiports

Antenna infrastructure for the emerging low-altitude economy.

China's low-altitude economy is projected to exceed one trillion yuan by 2026, propelled by drone delivery, urban air mobility, eVTOL passenger transport, and emergency response aviation. The wireless infrastructure to support this economy—command-and-control links, vehicle-to-vehicle communication, ground-to-air data services, precision navigation—is being defined now. Source Sequence works on antenna systems specifically designed for low-altitude operations: high-mobility tracking for fast-moving airframes, robust links in cluttered urban environments, and ISAC-capable apertures that simultaneously support communication and air-traffic surveillance.

01

Why Low-Altitude Needs New Antennas

Conventional aviation operates at altitudes and speeds where ground-based wireless coverage is straightforward—a single high-power link does most of the job. Low-altitude operations are fundamentally different: vehicles fly between buildings, at speeds that create rapidly changing channel conditions, in dense traffic where vehicle-to-vehicle awareness is safety-critical. The antennas serving these vehicles must be lightweight, low-power, multi-band, and capable of high-mobility beam tracking.

02

The Vertiport as a Wireless Hub

Future urban air mobility relies on vertiports—dedicated terminals for vertical takeoff and landing aircraft. These function as wireless hubs: aircraft check in, receive routing instructions, exchange data with ground controllers, and coordinate with other vehicles before departure. The antenna infrastructure at a vertiport must service many aircraft simultaneously, switch beams as vehicles take off and land, and maintain reliable links during transitions. Reconfigurable antenna systems with AI-driven scheduling fit this architecture naturally.

03

Communication-Surveillance Convergence

Air traffic safety depends on knowing where every vehicle is. Traditionally this is done with dedicated radar; for low-altitude operations, dedicated radar is too expensive to deploy widely. ISAC offers a path forward: the same antenna infrastructure that communicates with low-altitude vehicles simultaneously senses their position. We're developing aperture designs and AI-control algorithms specifically for this dual-function role.

04

Engagement Models

We work with three types of partners: (i) eVTOL and drone manufacturers integrating our airborne antennas into their vehicles; (ii) vertiport developers and air-mobility operators planning ground infrastructure; (iii) government and standardization bodies shaping low-altitude wireless spectrum policy.

Key Concepts
eVTOLElectric vertical takeoff and landing aircraft—the primary platform for urban air mobility, combining helicopter-like access with electric propulsion.
U-SpaceThe European regulatory framework for managing drone traffic in low-altitude airspace, analogous to air traffic management for manned aviation.
Command and Control (C2) LinkThe wireless link between an unmanned aircraft and its remote pilot or autonomous control system—a safety-critical connection.
ADS-BAutomatic Dependent Surveillance–Broadcast: a surveillance technology where aircraft broadcast GPS-derived position to ground stations and other aircraft.
References
  1. [1]ICAO (2019). Unmanned Aircraft Systems Traffic Management (UTM) — A Common Framework.
  2. [2]Saeed, A., et al. (2024). Wireless Communications for Low-Altitude Economy: A Survey. IEEE Wireless Communications.
  3. [3]3GPP TR 36.777 (2018). Study on Enhanced LTE Support for Aerial Vehicles.
  4. [4]Liu, Y., et al. (2025). Integrated Sensing and Communication for Low-Altitude Aircraft Surveillance. IEEE Internet of Things Journal.