Jump to content
Electronics-Lab.com Community

Antenna less FM xmitter (Modified one)

Naveed Ali

Recommended Posts

Please post a circuit of antenna less FM xmitter if you have designed such on [email protected]. Looking forward for positive reply.

Antenna less means that it is not totally without antenna but antenna may be very small to be noticed perhaps a 1cm or so but it must have a long range and power output.


FM range = 88-108 Mhz
Power output = <2W
Range = About 500 meters

Link to comment
Share on other sites

An Electrically small antenna will work though the resistance will be lower and it will behave like a capacitor.

Just use a normal small FM transmitter and add an inductor in series with the antenna.

Check out these links for more info:

Link to comment
Share on other sites

I don't think it is possible to use a tiny antenna then transmit a high power from it on the FM band. Unless you have gobs of power to waste.

He didn't mention the power level I just assumed <10mW for a legal transmitter.

Come to think of there was no mention of the frequency either, he just said FM, you could build a reasonably efficient FM voice transmitter working at the bluetooth frequency of 2.45GHz.
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...