Antenna with gain over 10dbi for 868Mhz and 750Mhz

[antenna_kid 12]

Ok, how scale it to 750 mhz and for 50 ohm ?

 

[Admin 2426]

[marloncruz9368 0]

Is it a disc yagi?

[antenna_kid 12]

On 19.03.2024 at 0:35 PM, Admin said:

yes, but its still for 75 ohm. need 50 ohm version.

[Admin 2426]

,,,antenna_kid, maybe you would be interested in something like this...

[antenna_kid 12]

Hi, excelent :)thank you. 
thickness of elements is the same (2mm) ?
Can it be 1.6mm. Asking because have double sided FR4 laminate. It will be easier to make them (cut on CNC).
Do you have also such design for 868 Mhz ? 
Will try make them both. 
 

[Admin 2426]

,,,the thickness of the material does not matter...!!!
I think that in order to cover both frequencies(750 MHz;868 MHz), a single Batwing antenna should be used.

[antenna_kid 12]

any dimensions for that bat wing ? You have right - 1.4 is not bad at 750  What impedace does it has at 868 and 750 ?

GOt question, this tube diameter is critical. Asking beczuse will be quite hard to find 30mm brass tube. Brass rod is quite expensive for that diameter.

 

Edited March 25 by antenna_kid

[Admin 2426]

 ,,,this tube diameter is not critical(20-30mm)...!!

I will also give the dimensions of the Batwing antenna.