Flexible and shape-morphing antennas have increasing applications in soft robotics and future factories, but fabricating them at mmWave frequencies for high throughput is a challenge, especially as higher gain is often required to overcome pathloss. Aerosol Jet Printing (AJP) has been used to produce two different designs of mmWave antennas on different flexible substrates. The designs are simulated, fabricated and measured, demonstrating simulated gains of 8.4dBi and 5.3dBi on Rogers and Kapton, respectively. When flexed, the design on polyimide showed 20% change in operating frequency.
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Saad et al. (2024) studied this question.
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