dBm to Watt converter Stripline Impedance calculator Microstrip line impedance Noise temp.There are two common types of empirical formula problems. Parabolic Dish Calculator Horn Antenna Calculator Dipole Antenna Calculator Patch Antenna Calculator Antenna near field calculator Antenna gain calculator Antenna G/T ratio calculator Useful converters and calculatorsįollowing is the list of useful converters and calculators. This 3-element Yagi Antenna calculator is useful to design the Yagi Antenna. Reflector to Dipole Spacing = 0.1875 meters,ĭipole to Director Spacing = 0.1875 metersįormula/Equations used in Yagi Antenna Calculatorįollowing formula/equations are used in the Yagi Antenna Calculator. OUTPUTS: Reflector Length = 0.7425 meters, Dipole Length = 0.7095 meters,

Front to Back Ratio Yagi Antenna CalculatorĮXAMPLE of 3 element Yagi Antenna calculator:.

The following are the basic specifications considered in selecting Yagi Antenna and performing calculations

The spacing also depend on bandwidth, gain, F/B ratio and sidelobe pattern The spacing of reflector from driven element The length is usually 5% more compare to driven element. Reflector: It is placed at rear of dipole or driven element. The Gain of Yagi Antenna depends on length of antenna array and do not depend on number of directors used The spacing between directors usually range from 0.1λ to 0.5λ or more. It helps to achieve desired gain and directional pattern. It has resonant higher compare to driven element. It has length which is 5% short compare to driven element.

Is about half of wavelength of frequency.ĭirector: It is designed mainly for receiving EM waves. It becomes resonant when its electrical length The feed point is located at the center of the driven element. This helps in transfer of energy from transmitter module to antenna. Driven Element): It is the feed point where feedline is usually attached from transmitter. It may have one or multiple directors.ĭipole (i.e. The simple Yagi Antenna is shown in the figure-1. The calculators for other antenna types such as parabolic,horn,dipole and patch are also mentioned. The formula and basics of Yagi Antenna Calculator are also explained with example.

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