Not very practical, imo: 1. antennas must withstand major changes of ambient temperatures, direct sunlight, humidity and many other factors. How would one main

Not very practical, imo: 1. antennas must withstand major changes of ambient temperatures, direct sunlight, humidity and many other factors. How would one maintain nitinol in desired shape? Which prompts the next question: 2. how does it maintain efficiency? the heating needs energy, so antenna won't be passive - okay. But motorized lifting mechanism that only draws power when change of shape is happening might be a better idea.