Aerospace & Defense Technology - February 2025 - 22

RF & Microwave Technology
This time, Hollenbeck had a new
antenna design in mind. Lennon's team
had been able to 3D-print nitinol with
what's known as two-way shape memory,
in which the alloy can be heated and
cooled to alternate between two remembered
shapes. With critical design and
prototyping support from Kyle Sibert,
an electrical engineer in APL's Force Projection
Sector, Hollenbeck's team developed
an antenna that was shaped like a
flat spiral disk when cool but became a
cone spiral when heated.
Heating the spiral proved to be a chalBy
leveraging cutting-edge additive manufacturing techniques and shape memory alloys, APL researchers
have created an antenna that can change its shape based on its temperature. (Image: Adobe Stock)
lenge. The team had to determine how
to heat the metal of the antenna enough
for it to change shape, but without interfering
with the RF properties or burning
out the structure. To solve the problem,
the team, led by RF and microwave
design engineer Michael Sherburne, had
to invent a new form of power line.
" For peak heating, the power line has
to handle a lot of current, " Sherburne
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Aerospace & Defense Technology - February 2025

Table of Contents for the Digital Edition of Aerospace & Defense Technology - February 2025

Aerospace & Defense Technology - February 2025 - Intro
Aerospace & Defense Technology - February 2025 - Sponsor
Aerospace & Defense Technology - February 2025 - COV1
Aerospace & Defense Technology - February 2025 - COV2
Aerospace & Defense Technology - February 2025 - 1
Aerospace & Defense Technology - February 2025 - 2
Aerospace & Defense Technology - February 2025 - 3
Aerospace & Defense Technology - February 2025 - 4
Aerospace & Defense Technology - February 2025 - 5
Aerospace & Defense Technology - February 2025 - 6
Aerospace & Defense Technology - February 2025 - 7
Aerospace & Defense Technology - February 2025 - 8
Aerospace & Defense Technology - February 2025 - 9
Aerospace & Defense Technology - February 2025 - 10
Aerospace & Defense Technology - February 2025 - 11
Aerospace & Defense Technology - February 2025 - 12
Aerospace & Defense Technology - February 2025 - 13
Aerospace & Defense Technology - February 2025 - 14
Aerospace & Defense Technology - February 2025 - 15
Aerospace & Defense Technology - February 2025 - 16
Aerospace & Defense Technology - February 2025 - 17
Aerospace & Defense Technology - February 2025 - 18
Aerospace & Defense Technology - February 2025 - 19
Aerospace & Defense Technology - February 2025 - 20
Aerospace & Defense Technology - February 2025 - 21
Aerospace & Defense Technology - February 2025 - 22
Aerospace & Defense Technology - February 2025 - 23
Aerospace & Defense Technology - February 2025 - 24
Aerospace & Defense Technology - February 2025 - 25
Aerospace & Defense Technology - February 2025 - 26
Aerospace & Defense Technology - February 2025 - 27
Aerospace & Defense Technology - February 2025 - 28
Aerospace & Defense Technology - February 2025 - 29
Aerospace & Defense Technology - February 2025 - 30
Aerospace & Defense Technology - February 2025 - 31
Aerospace & Defense Technology - February 2025 - 32
Aerospace & Defense Technology - February 2025 - 33
Aerospace & Defense Technology - February 2025 - 34
Aerospace & Defense Technology - February 2025 - 35
Aerospace & Defense Technology - February 2025 - 36
Aerospace & Defense Technology - February 2025 - 37
Aerospace & Defense Technology - February 2025 - 38
Aerospace & Defense Technology - February 2025 - 39
Aerospace & Defense Technology - February 2025 - 40
Aerospace & Defense Technology - February 2025 - COV3
Aerospace & Defense Technology - February 2025 - COV4
https://www.nxtbook.com/smg/techbriefs/25ADT02
https://www.nxtbook.com/smg/techbriefs/24ADT12
https://www.nxtbook.com/smg/techbriefs/24ADT10
https://www.nxtbook.com/smg/techbriefs/24ADT09
https://www.nxtbook.com/smg/techbriefs/24ADT08
https://www.nxtbook.com/smg/techbriefs/24ADT06
https://www.nxtbook.com/smg/techbriefs/24ADT05
https://www.nxtbook.com/smg/techbriefs/24ADT04
https://www.nxtbook.com/smg/techbriefs/24ADT02
https://www.nxtbook.com/smg/techbriefs/23ADT12
https://www.nxtbook.com/smg/techbriefs/23ADT10
https://www.nxtbook.com/smg/techbriefs/23ADT09
https://www.nxtbook.com/smg/techbriefs/23ADT08
https://www.nxtbook.com/smg/techbriefs/23ADT06
https://www.nxtbook.com/smg/techbriefs/23ADT05
https://www.nxtbook.com/smg/techbriefs/23ADT04
https://www.nxtbook.com/smg/techbriefs/23ADT02
https://www.nxtbook.com/smg/techbriefs/22ADT12
https://www.nxtbook.com/smg/techbriefs/22ADT10
https://www.nxtbook.com/smg/techbriefs/22ADT09
https://www.nxtbook.com/smg/techbriefs/22ADT08
https://www.nxtbook.com/smg/techbriefs/22ADT06
https://www.nxtbook.com/smg/techbriefs/22ADT05
https://www.nxtbook.com/smg/techbriefs/22ADT04
https://www.nxtbook.com/smg/techbriefs/22ADT02
https://www.nxtbook.com/smg/techbriefs/21ADT12
https://www.nxtbook.com/smg/techbriefs/21ADT10
https://www.nxtbook.com/smg/techbriefs/21ADT09
https://www.nxtbook.com/smg/techbriefs/21ADT08
https://www.nxtbook.com/smg/techbriefs/21ADT06
https://www.nxtbook.com/smg/techbriefs/21ADT05
https://www.nxtbook.com/smg/techbriefs/21ADT04
https://www.nxtbook.com/smg/techbriefs/21ADT02
https://www.nxtbookmedia.com