Patent ID: 6011516
Filing Date: 2000-01-04
Classification: H01Q

Abstract:
A multiband whip antenna comprising:a metal radiation element; anda distributed-constant coaxial dielectric resonator;wherein said distributed-constant coaxial dielectric resonator includes: (i) a dielectric block having a center hole, (ii) a first conductor covering an inner surface of said dielectric block, said inner surface defining said center hole, and (iii) a second conductor covering an outer peripheral surface of said dielectric block;wherein said metal radiation element comprises first and second antenna rods, said first antenna rod being electrically connected to said first conductor of said distributed-constant coaxial dielectric resonator, and said second antenna rod being electrically connected to said second conductor of said distributed-constant coaxial dielectric resonator; andwherein said second antenna rod comprises a helical coil element.