242Views11Replies

Author Options:

Tetrahedron Antenna Answered

Hello

I have a question about an idea I have for an antenna that always points to the sky antenna no matter how it lands; this is for a high altitude balloon. My idea was to make an antenna the shape of a tetrahedron, so that one antenna always points up.

Does  having 4 antennas diminish the signal from the transmitter at all?

Thank you

Discussions

0
None
caitlinsdad

7 years ago

Not sure but you would think as a transmitting antenna, having the signals radiating from different near sources might cause interference. The same signal pointed in different directions could cancel some of the signal strength. Maybe have a single antenna inside of a rotating mount that is weighted upright.

0
None
sdtacomacaitlinsdad

Reply 7 years ago

If it is going to interfere then I might have to do something like you suggested and go with something weighted.

0
None
Kitemansdtacoma

Reply 7 years ago

Yes - think along the lines of a hamster's exercise ball.

0
None
sdtacomaKiteman

Reply 7 years ago

You guys seem to know what you're talking about. What do you think of the Instructable? It is what I need the antenna pointing up for.

https://www.instructables.com/id/433-MHz-UHF-lost-model-radio-beacon/

0
None
lemonie

7 years ago


You could try a Weeble design.

L

0
None
sdtacomalemonie

Reply 7 years ago

Yes, the weebl design (haha)! That reminds me of a punching bag I used to have as a kid... ohh, the memories.

That is along the lines of what I was thinking based on Caitlin's Dad. Should be pretty easy to accomplish.

0
None
looking4ideas

7 years ago

Are you trying to make it so that the payload will have contact with the GPS satellites even if the payload lands sideways ? if so that will be a problem because the GPS satellite systems work in a different way than normal antennas they are usually flat antennas.

0
None
sdtacomalooking4ideas

Reply 7 years ago

The signal that it will be transmitting will be from a short range radio beacon not a GPS.