What is it about?
We proposed a double-sided patch antenna that enables observation in directly opposite directions while maintaining high radio wave strength by changing the feeding frequency. It was shown that it is possible to maintain the same level of radio wave strength in both directions by removing the antenna substrate parts that causes the loss of radiated energy.
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Why is it important?
It is significant that the antenna can radiate in the opposite direction with a single input, and that by removing the part of the antenna substrate that causes radiation energy loss, it is possible to make observations with equal levels of radio wave strength in both directions without adjusting design parameters.
Perspectives
Our proposed antenna on a satellite will reduce the wait time for observations and increase the number of observations, which will help the people in astronomy. The concept of incorporating a cavity into the antenna substrate to mitigate radiation energy loss and ensure uniform energy distribution among multiple antennas holds significant potential for terrestrial communications applications either. We anticipate an expansion in the utilization of adaptive antenna structures made of shape memory polymers.
Hikari Kono
Tokyo Metropolitan University
Read the Original
This page is a summary of: Space Deployable Dual-Sided Patch Antenna With Switchable Observation Direction Using Different Resonant Frequencies, January 2025, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2025-1404.
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