Скачать или смотреть Cheap Ultra Wide Band antenna from AliExpress - any good?

I was browsing AliExpress and came across a giant Ultra Wide Band (UWB) antenna, providing additional gain from 800 MHz and 6 GHz, at just $6 it’s hard to resist!! In this video I explore how it behaves and how we can connect to an ESP32 to improve Wi-Fi connectivity. I first measure the standing wave ratio from 700 MHz to 2 GHz, the maximum frequency of my Nano VNA. I also connect it to a Tiny SA ultra, which works up to 6 GHz. It seems the antenna does work over the advertised frequency range and it clearly improve the signal strength of 2.h GHz Wi-Fi signals. At the end I bodge the antenna on to a Seeed Studio ESP32 C3 with external uLF antenna connector. With careful alignment the gain seems to be around 3-5 dB compared to excellent antenna that ships with the Seeed unit!

The antenna can be found on AliExpress and is currently reduced!
Antenna UWB Ultra-Wideband Directional Antenna (4.8*, 900+ sold)
https://s.click.aliexpress.com/e/_oDS...

You can also pick up the Seeed C3 with external antenna socket here:

Seeed studio, ESP32 C3, 4.8*, 500+ sold.
https://s.click.aliexpress.com/e/_oC5...

There are a few other components I highly recommend:

ESP32 WROOM – Cheap Yellow Display, (4.9* 3000 sold)
https://s.click.aliexpress.com/e/_oF0...

Seeed studio, ESP32 C6 (new version with Zigbee), 4.9*, 1000+ sold:
https://s.click.aliexpress.com/e/_oDJ...

Check out my blog for a full write: https://circuithelper.com

#aliexpress #arduino #esp32 #microcontroller #wifi #diy #antenna