Antennas for Drones

[Aksonx2 13]

4 minutes ago, Admin said:

,,,okay, I will try to do a simulation of this antenna...!!!

...the input impedance is 50 Ohm...???

Yes ,50 Ohm.

[Aksonx2 13]

read about such antennas. Made a connection point as in the photo. It seems better but I still want better

 

[Admin 2545]

Aksonx2, please excuse me, I have small problems with the simulation program and I'm going to be a little late with it...!!!

[Aksonx2 13]

On 13.05.2024 at 3:16 PM, Admin said:

Aksonx2, please excuse me, I have small problems with the simulation program and I'm going to be a little late with it...!!!

Don't worry. It's ok. I'm also waiting for windless weather to test this antenna option in field flights. Science requires sacrifice!!!

[Admin 2545]

Aksonx2,

,,,I finally managed to do the simulation for you, but it seems that the antenna is not quite successful..!!!

[Aksonx2 13]

1 hour ago, Admin said:

Aksonx2,

,,,I finally managed to do the simulation for you, but it seems that the antenna is not quite successful..!!!

Thank you so much for your time. It also seemed to me that this antenna connection option is a little incorrect. 

I changed the location of the cable connection in the middle of the connection line, above I posted a photo. The results were as follows on the analyzer. The results above are incorrect since they were in a small room and industrial interference was detected on the air

[Aksonx2 13]

[Admin 2545]

,,,my friend, for which frequency do you want the antenna to work...???

[Aksonx2 13]

I apologize for the arrogance:) do not share the project file? In order not to waste your time, I will play with the size of the antennas myself.

 

[Admin 2545]

okay, maybe later, I have a little work now...!!1

[Aksonx2 13]

48 minutes ago, Aksonx2 said:

I apologize for the arrogance:) do not share the project file? In order not to waste your time, I will play with the size of the antennas myself.

 

 

54 minutes ago, Admin said:

,,,my friend, for which frequency do you want the antenna to work...???

I fly this antenna now at 1320 MHz. I suggest you stay that way. Cut less:))))

[Admin 2545]

,,,this it is...

1230mhz.cst

[Aksonx2 13]

changed the connection location and replaced the wire with strips in the connection. 

If you have free time, can you check me out? I'm still in CST. According to your articles on the forum. A little later I will put optimization

 

1320patch.cst

[Admin 2545]

,,,did you really buy this antenna from the store...???

[clanon 246]

IIRC the WIRES UNDER the discs (closer to reflector) gave less reactivity ...improving VSWR...

[Admin 2545]

Crosshair®Xtreme Pair for HDZero Goggles

The HDZero system works by using 2 diversity systems, one on the left side and the other on the right and then combining the best signals of both of those into one HD signal. 

Specifications:

Polarization: RHCP or LHCP

Gain: 10.25dbic

Axial ratio: 0.99 (as measured)

Bandwidth: 5300MHz-6400MHz

Beamwidth: 120 degrees

-3db beamwidth: +/-30 degrees

Mounting Solution: Black Included (other colors optional)

Connector: SMA Male 90