Yagi Fm Antenna Design
It is placed at rear of dipole or driven element.
Yagi fm antenna design. Taking the plunge to make my own there were some steps to consider. A yagi uda antenna commonly known as a yagi antenna is a directional antenna consisting of multiple parallel elements in a line usually half wave dipoles made of metal rods. For exemple in fm broadcasting band choice 100 mhz it s easy for calculate. 7 element yagi commercial fm band antenna or how to turn a channel master cm 3671b into a useful fm antenna.
The gain of yagi antenna depends on length of antenna array and do not depend on number of directors used in the design. A well designed yagi antenna as per the design given below can cover a line of site distance of even 5 kms with just 1 watt rf power. Yagi uda antennas consist of a single driven element connected to the transmitter or receiver with a transmission line and additional parasitic elements which are not connected to the transmitter or receiver. It has the best gain for its sizes and a correspondingly narrow main lobe beam.
The yagi also known as a beam antenna has a directional geometry that works best when pointed at a radio source. In this menu you need to submit values of multiple. The fm dipole antenna can be a cheap and effective solution and they can be made in a variety of forms only two ideas are given above but it is possible to make a vhf fm dipole antenna in many more ways according to what may be available and what the. In understanding the basic yagi antenna theory the different elements of the yagi antenna react in a complex and interrelated way.
To design the antenna you need to go to task design yagi menu. For know the length of the element s choice your frequency of work. This antenna is very adapted at vhf and uhf domain inside 30 mhz to 900 mhz. Receiver antenna is a tool to capture signals fm radio reception for remote antenna is mostly yagi yagi antenna yagi antenna the number of cells directly affect the reception range unit number the more the direction of the more acute the higher the gain the greater the distance straight.
It consists of a main antenna called the driven element and a set of auxiliary antennas known as. The yagi antenna is a narrow band antenna designed to work only on fm channel. Measurements and comparisons at the bottom of the page. The dimension of the antenna below is in function of the frequency.
The yagi radio antenna is relatively simple to build provided you learn a few design concepts. China s fm broadcast band is 87 5 108mhz while the tv channel 5 s center frequency is 88mhz so. The dimension is in meters. A dipole antenna is often an ideal solution for an antenna for receiving vhf fm broadcasts.
In depth yagi antenna theory can be complicated but a basic understanding of how a yagi antenna works can provide sufficient insight for many applications and for basic design purposes. Yagi calculator is a free antenna design and analysis software for windows.