Another Beam Antenna
After experimenting with the LoRa Antenna, I decided to see what I could do with a smaller antenna for 2.4 GHz, also 3D printing the beam and using the same element material as I did for that. Here, the effort is just for fun, but could be used for WiFi or drone operations. This is the result.
On the elements for this antenna, as the dimensions are smaller and more critical, I rounded the ends to remove jagged ends, and to ensure the lengths were exact.
Above are shown the lengths and spacing for each element (from the reflector). As for the LoRa Antenna, I used the Cantennator app on my phone to determine a 7-element yagi/beam antenna.
It’s such a cute antenna, looking at it after mounting and hot-gluing the individual elements. This required marking the exact center of each. I used the same miniature coax with a SMA male connector.
The resonant point falls within about 20 mhz of the design of 2448 MHz. And, the gain over an isotropic antenna is around 21 dBi.