On the morning of March 9th, the 45th “Academic Lecture of Department of Precision Instrument” was successfully held in Room 4304, Building 9003. Professor Antony Keith Brown, from Department of Communication Engineering of University of Manchester, was invited to give an academic lecture entitled “Broadband Antenna Technology and Square Kilometer Array Radio Telescope”. The lecture was hosted by Associate Professor Wang, Bo from Department of Precision Instrument.

Professor Antony Keith Brown presented the SKA (Square Kilometer Array) project and the broadband antenna technology proposed for the SKA project. The SKA is the largest radio telescope project in the world and it will be used to explore basic issues concerning science and natural laws. The SKA, built mainly in South Africa and Western Australia, uses thousands of antennas (high-frequency), low- and medium-frequency aperture array telescopes and is connected to thousands of kilometers away. "Broadband Antenna Technology" uses a combination of advanced array and reflector antennas to provide frequencies from 50MHz to 15GHz. The system approach utilizes digital beamforming and related technologies to make digital capacity 10 times more than the current global Internet. The lecture stimulated strong interest and extensive discussion among teachers and students. Finally, Prof. Antony Keith Brown answered several questions raised by the participants in detail.

“Academic Lecture of Department of Precision Instrument” is a series of high-level academic lectures and activities in which our department is focusing on inviting famous scholars at home and abroad to give academic reports, develop academic views of teachers and students, promotes interdisciplinary and academic exchanges, and stimulates and enhances students’ interest and potential of academic research and motivate them to follow the road of academic research unswervingly and advance fearlessly.