Aksonx2

it will take some time. I disassembled the antenna, and there are elements on both sides of the textolite

Maple Wireless 5.5 g , Gain 20 dBi The antenna is a little loose ...

Maple Wireless 4.9 / 5.8 g , Gain 20 dBi

I'll try to do everything by Monday.

With pleasure :)))) write what dimensions you need to take off . I can disassemble the antenna. By the way, the Chinese produce them in 3 versions . Which one do you need? :))))))

Maple Wireless 4.9G 21 dBi

Here is an example of an antenna for digital data transmission. The antenna is from the Walksnail kit. The S11 VSWR is simply a loss of signal due to re-reflection. With a VSWR of 1.5, the loss is approximately 4-5%. However, the S11 phase is excellent throughout the video transmission. (5700-5800 MHz)

For DJI, this is completely wrong!! You have OFDM and BPSK!!! The information is encoded in the carrier phase. BPSK uses two phases (0 and 180 degrees) to represent binary 0 and 1. If your antenna is not "phase-stable," you will receive many corrupted packets of information during signal transmission, and the further you go, the worse the connection will be. However, this antenna will work perfectly well with analog signals. The requirements for an antenna for transmitting a BPSK digital signal are no more than 10-20 degrees of phase difference in the operating frequency range.

Hello, dear Admin!!! I meant how to make such a figure in CST Studio? A right triangle that goes around a circle.

Hello everyone, I am making a model of a spiral antenna. Please tell me how to make a matching element in the simulation program? A triangle that is curved along the radius.

Sorry!!! Password: 1progs

CST STUDIO SUITE 2025.01 SP1 https://cloud.mail.ru/public/VzVL/UGgXdTaou

Thank you very much when I wrote to you, I also checked this parameter and the program actually showed the same value of the material = 2.4. I'll try to make a new calculation at 950 MHz instead of 915 MHz. If necessary, I will write about the results. Now there is an opportunity to work with a 3d printing designer. I'm exporting the antenna model to him in "step" format file. The designer adds plastic models to his program and sends them to me. It turns out to be a ready-made model, taking into account all the details. This opens up interesting possibilities in the program. It might be possible to make something similar to a Fresnel lens

Thank you very much, everything worked out. Can you tell me the characteristics of PET-G plastic for calculating simulation in the program? I understand that the Epsilon , Mu parameter is necessary, and some other important parameters must be specified. A search in Goggle gave an approximate parameter Epsilon = 3.1 for PET-G plastic at temperatures up to 180 degrees Celsius. Moxon designed an antenna in a plastic frame made of PET-G, the antenna turned out to be with a VSWR down by 50 MHz from the calculated one according to the program.

Good time. I found an antenna model where two cylinders are connected by a separate element . A smooth curve is obtained. I can't find how to do this in the program. How can this be done?