Radome Assessment and Transmission Test System


The PolyU Aviation Services Research Centre (ASRC) has developed a device to test the transmission efficiency of radomes. Transmission efficiency is a key performance parameter for radomes as they must be transparent to radar waves to avoid interfering with the radar signals of weather systems.

  • Radome Assessment and Transmission Test System 0
  • Radome Assessment and Transmission Test System 1
Commercialisation opportunities
Collaboration for product development
Problem addressed

Currently, the industry relies on a radar antenna and a large anechoic chamber to test for transmission efficiency after damage to the surface of a radome has been repaired. However, the industry wants a smaller and less expensive test jig.

  • This test jig is the world's first radome transmission efficiency test system that does not rely on a radar antenna, making it a more affordable option for operators. The system is about twice the size of a radome, allowing it to fit in workshops.
  • The system uses two horns in a pitch-and-catch setting, which transmit and receive a signal at 9.5 GHz. The entire surface of the radome is scanned in approximately eight hours, and the results are provided in the industry-required format.
  • The test jig can accommodate several types of radomes from different aircraft manufacturers.
Key impact
  • Compared with the current method of testing radomes, the test jig is highly affordable. It costs about 10% of the price of other test installations available in the market.
  • The system's compact size allows for easy installation in any workshop and makes it easy to move if necessary.
  • The test jig is easy to use, even for operators without knowledge of radar signals.
  • Testing of aircraft radomes
  • Testing of weather radomes
The Hong Kong Polytechnic University (PolyU)

With over 80 years of proud tradition and ranking among the world’s top 100 institutions, The Hong Kong Polytechnic University (PolyU) aspires to be a leading university with world-class research and education.

PolyU is a home for educating thinkers, discoverers, innovators and communicators in delivering positive impact. We are committed to nurturing tomorrow’s leaders today, through a holistic education that provides graduates unrivaled placements to thrive in communities, industries and businesses.