Space Electromagnetic Technology Symposium: Focusing on Low-Earth Orbit Commercial Satellite Communication Payloads, Promoting Space Infrastructure Construction

Space Electromagnetic Technology Symposium: Focusing on Low-Earth Orbit Commercial Satellite Communication Payloads, Promoting Space Infrastructure ConstructionCurrently, the global aerospace industry is moving towards 6G, and space infrastructure is showing a trend of low-Earth orbit, commercialization, constellation formation, and low cost. In 2024, commercial space was included in the government work report, becoming a new type of productive force and a key driver of space infrastructure construction

Space Electromagnetic Technology Symposium: Focusing on Low-Earth Orbit Commercial Satellite Communication Payloads, Promoting Space Infrastructure Construction

Currently, the global aerospace industry is moving towards 6G, and space infrastructure is showing a trend of low-Earth orbit, commercialization, constellation formation, and low cost. In 2024, commercial space was included in the government work report, becoming a new type of productive force and a key driver of space infrastructure construction. To accelerate the deployment of China's low-Earth orbit internet constellation and promote space infrastructure construction, on August 19th, Galaxy Aerospace (Xi'an) Technology Co., Ltd., together with the Xi'an National Civil Aerospace Industry Base Management Committee, jointly hosted the "Space Electromagnetic Technology Symposium - Communication Payloads for Low-Earth Orbit Commercial Satellites." The event brought together experts from government, industry, academia, and research institutions to engage in in-depth discussions on the current state and future directions of space electromagnetic technology for low-Earth orbit commercial satellite communication payloads.

Guo Jie, a first-level inspector of the Shaanxi Provincial Science and Technology Department, Li Zhijun, Director of the Xi'an Municipal Science and Technology Bureau, and relevant leaders of the Xi'an Aerospace Base Management Committee attended the meeting. More than ten academic experts from Southeast University, Xidian University, Xi'an Jiaotong University, Northwestern Polytechnical University, and other universities, as well as industry representatives, also participated in the symposium. Zhu Zhengxian, co-founder and CTO of Galaxy Aerospace, chaired the academic discussion.

In his speech, Guo Jie emphasized the importance of commercial space in driving the development of the aerospace industry and building a space power, and stated that Shaanxi Province is actively leveraging its advantages in scientific and technological innovation and industrial foundation to strive to build a commercial space innovation cluster and provide strong scientific and technological support for the province's aerospace development. Li Zhijun, Director of the Xi'an Municipal Science and Technology Bureau, also pointed out that Xi'an City has identified future industries as one of its six categories, with the future space field being particularly important. The space electromagnetic technology discussed at this meeting is a crucial supporting direction for future space development.

Currently, the global aerospace industry is in a golden period of rapid development and transformative innovation, and space infrastructure construction is accelerating. Millimeter-wave communication payloads, as a key factor in the commercialization, constellation formation, and low-cost nature of low-Earth orbit satellite communication technology, have attracted significant attention. Large-scale array phased arrays and high-frequency antennas are the payloads that best demonstrate technical difficulty and commercial value on satellites.

As a representative of private enterprises, Galaxy Aerospace adheres to original innovation, cost reduction, improvement of comprehensive production efficiency, and empowering the new productive forces of commercial space. The company has achieved continuous innovation in the field of communication payloads for low-Earth orbit satellites. Zhu Zhengxian introduced that Galaxy Aerospace actively leverages the advantages of private enterprises to lead technological innovation. By integrating with ground-based industries, it has created a new aerospace industry ecosystem, significantly reducing the cost of millimeter-wave phased array antennas. Today, the cost is only 1/10 of what it was a decade ago. Currently, Galaxy Aerospace has completed the development of large-aperture millimeter-wave multi-beam (tile-based) phased array antennas and achieved mass production.

Yang Fei, Professor at Xi'an Jiaotong University and Director of the Shaanxi Provincial Key Laboratory of Deep Space Exploration Intelligent Information Technology, pointed out that with the rapid development of integrated navigation, guidance, and remote sensing, new waveform aerospace applications, and other new payload systems, power amplifiers are developing towards multiple applications and new system adaptation, becoming a key to solving engineering bottlenecks. How to enhance the efficiency, bandwidth, linearity, and other key indicators of power amplifiers, as well as adapting to problems such as the short overhead time and large flux changes of low-Earth orbit satellites, which result in significant fluctuations in the operating point, requires a concerted effort from industry, academia, and research to accelerate the transition from technological innovation to engineering implementation and promote high-quality commercial space development.

Wu Bian, Professor at Xidian University and Director of the Xi'an Municipal Key Laboratory of Millimeter-wave and Terahertz Technology, believes that for both low-Earth orbit satellite internet and deep space exploration, technological breakthroughs in multifunctional antennas and low-cost development are crucial. Flexible foldable antennas and transparent high-gain antennas are emerging as new development trends. Through technological iteration, accelerating the realization of multi-frequency antennas with shared apertures and integrated antennas and solar panels is key to future space technology.

Experts attending the meeting unanimously agreed that private enterprises have advantages in developing space electromagnetic technology, including rapid technological iteration, greater emphasis on cost control, and the ability to integrate the industrial chain. Under the new national system, the coordinated development of industry, academia, and research will help to accelerate the engineering implementation of technology and promote the accelerated construction of space infrastructure.

The hosting of this symposium has provided valuable insights and suggestions for promoting the development of China's space electromagnetic technology and accelerating space infrastructure construction. It has also injected new vitality into promoting industry-academia-research collaboration and driving the development of the commercial space industry.

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