In this DIY, we are demonstrating the project FM Antenna. Here is a design of a straightforward DIY FM antenna that you can make to get far-off radio broadcasts and improve the function of your FM receiver. You can likewise utilize this apparatus with any FM antenna amplifier or FM antenna booster circuit.
Moreover, it is a very simple and easy circuit, so everyone can make it if all the required parts are accessible. This kind of receiving wire is known as a half-wave dipole antenna which is best for a single frequency.
Hardware Components
| S.no | Components | Value | Qty |
|---|---|---|---|
| 1. | Aluminum rod | 1-inch dia | 2 meter |
| 2. | Coaxial Cable | 75 ohms | as per need |
Dipole Antenna
Working Explanation
Here is a straightforward equation to know the size of the antenna for the ideal frequency:
- Antenna length in meters = 300/frequency/2
For instance, if you need to make it for 100 MHz. The equation would be:
- 300/100/2 = 1.5 meters
The total length of the antenna will be 1.5 meters for 100 MHz. And the design will be this way as shown in the circuit diagram.
For instance, on the off chance that you need to get an FM radio broadcast on 103 MHz. Therefore, you need to make the receiving wire for 103 MHz with the assistance of estimation. Furthermore, if you are willing to cover the entire FM band. Then make it for 98 MHz which is the focal point of the FM band.
Applications and Uses
A radio broadcast utilizes an FM antenna to transmit projects, talk shows, songs, and advertisements across significant distances. This information is transformed into electrical energy, which floods along the FM antenna. While this procedure is continuous, the signals or power is boosted. These radio waves are then received by other receivers’ antennas.
