tony_lth
Advanced Member level 5
![Advanced Member level 5](/styles/images/ranks/hlevel2.gif)
Hi, Gurus,
I saw a dual-circle antenna with the same center.
The inner diameter is about 30mm, and the outer is about 45mm. The circle width are the same, about 3mm.
I guess it maybe a 5.8GHz antenna.
I browsed the internet and some say its a dual-frequency antennas.
I know the antenna should have very narrow directivity, and it should work at free frequency band, such as 2.4GHz, 5.8GHz, 24GHz, etc.
So anyone can comment on this antenna, what it is, and how to design it.
Best,
Tony Liu
I saw a dual-circle antenna with the same center.
The inner diameter is about 30mm, and the outer is about 45mm. The circle width are the same, about 3mm.
I guess it maybe a 5.8GHz antenna.
I browsed the internet and some say its a dual-frequency antennas.
I know the antenna should have very narrow directivity, and it should work at free frequency band, such as 2.4GHz, 5.8GHz, 24GHz, etc.
So anyone can comment on this antenna, what it is, and how to design it.
Best,
Tony Liu