B
Boki
- Jan 1, 1970
- 0
Dear Experts,
My device, include a FM transmitter. ( 85MHz ~ 108MHz )
In my calculation:
The antenna length ( meter ) = ( 300 / frequency (MHz) ) * 0.25 * 0.96
so I get about 0.72m, is that right ?
The problem is that my PCB is about 5x5 cm2, many buttons around, and
need to include Bluetooth anttena ( on board anttena ).
I wish the FM TX can be done by on board anttena also, but it seems not
possible, someone suggest me to add external anttena into housing and
then connect to PCB...
Please advice, thank you very much!
Best regards,
Boki.
My device, include a FM transmitter. ( 85MHz ~ 108MHz )
In my calculation:
The antenna length ( meter ) = ( 300 / frequency (MHz) ) * 0.25 * 0.96
so I get about 0.72m, is that right ?
The problem is that my PCB is about 5x5 cm2, many buttons around, and
need to include Bluetooth anttena ( on board anttena ).
I wish the FM TX can be done by on board anttena also, but it seems not
possible, someone suggest me to add external anttena into housing and
then connect to PCB...
Please advice, thank you very much!
Best regards,
Boki.