E.m.w. Antenna Co., Ltd.

Weon-Mo Sung

Byung-Hoon Ryou

The present invention relates to a multiple band-type antenna and method of producing the same. In the present invention, a connector member formed by cutting a cylindrical metallic rod and a first helical antenna are integral through a connection member. A space forming an impedance transformer is formed at the connection member for thereby widening a band region based on a series inductance effect. A helical antenna and a whip antenna are additionally installed at a center of the dielectric surrounding the inner and outer sides of the first helical antenna and the connection member for thereby enhancing an efficiency of the antenna by overcoming the unbalance problems encountered in the conventional art.

Multiple bands type antenna and method for producing the same

Disclosed herein is an antenna for portable wireless communication apparatuses. The antenna for portable wireless communication apparatuses includes an antenna element provided on its outer surface with a conductor on which a plurality of openings are formed. The outer portion of the interior of the conductor is filled with a dielectric material. This antenna element is connected in parallel with a linear radiator in an insulated state, thereby radiating electromagnetic waves and at the same time being capable of adjusting the radiated amount and direction of the electromagnetic waves.

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Kwangju, South Korea

Weon-Mo Sung