MEL’S DOG & PONY SHOW

RADIO FREQUENCY FILTERS

RADIO FREQUENCY FILTERS A radio frequency filter is an electronic circuit that will allow or not allow a band of frequencies to pass thru it

RADIO FREQUENCY FILTERS There are 2 basic types of filters SERIES OR PARALLEL

RADIO FREQUENCY FILTERS Today we will be discussing SERIES FILTERS More commonly called The Series Resonant Circuit

RADIO FREQUENCY FILTERS The purpose of a SERIES RESONANT CIRCUIT is to allow a specific band of frequencies to pass thru it

RADIO FREQUENCY FILTERS The simplest SERIES RESONANT CIRCUIT looks like this

RADIO FREQUENCY FILTERS

RADIO FREQUENCY FILTERS PRIMARY ASSUMPTION The antenna is a standard Half-Wave Dipole The antenna is tuned to the center of a band Now, to design our Series Resonant Circuit we will need to do some math These are the formulas we will need

RADIO FREQUENCY FILTERS Inductance in Henries Capacitance in Farads

RADIO FREQUENCY FILTERS VSWR EQUATIONS

RADIO FREQUENCY FILTERS

RADIO FREQUENCY FILTERS TIME FOR THE SPREAD SHEET