Feeders

Coaxial Line (Coax) (1)

  • One conductor (the outer) is tubular braid and encloses the other conductor (the inner);  a dielectric separates the two conductors;  coax is an unbalanced transmission line
  • Characteristic impedance (normally 52 or 75 ohm) is determined by the ratio of diameter of the inner conductor to inside diameter of the outer conductor
  • Cable is flexible, can be run near or strapped to metal objects