Introduction: Blade Antenna for 2.4GHz
In this video I will show you how to build a blade antenna for 2.4 GHz wifi. This antenna is a modified antenna I found in a book from 1947. It works better than I thought it would with gain around 9db and best of all it is omnidirectional. Based around a dipole antenna each section is ¼ wavelength (25mm).
6 Comments
7 years ago
Can it be made to work on both 800 and 1900 mhz by making one of the dipole pairs larger?
8 years ago on Introduction
How would this work for a wireless router to laptop & dongle?
9 years ago on Introduction
.... 25 mm is NOT ¼ wavelength for 2.4GHz
Reply 9 years ago on Introduction
It would be very hard for me to explain here in a few sentences. These types of dipole antenna are based on the short dipole. Basically this dipole is short when compared to a wavelength at the operating frequency 100mm v 124mm due to higher feed impedance with this design. If it was so easy to have a fixed measurement for a wavelength then people like me would not spend 4 years at university studying antenna theory.
Reply 9 years ago on Introduction
....if you are so happy, I'm happy for you !!!
Thank goodness, in Italy we had Guglielmo Marconi.
9 years ago on Introduction
Cool! Thanks for sharing this.