Patent Number: 6,310,578

Title: Multiple band telescope type antenna for mobile phone

Abstract: A multiple band antenna assembly for a portable hand held communication device. The antenna assembly includes a fixed multiple band base antenna element and a whip antenna which can be adjusted between extended and retracted positions. The whip antenna includes a telescoping metal portion having a length selected to achieve resonance in multiple frequencies. In the extended position, the whip antenna is electromagnetically coupled to the base antenna element without metal to metal contact. The antenna is mechanically simple and requires only a single port for multiple band operation.

Inventors: Ying; Zhinong (Lund, SE)

Assignee: Telefonaktiebolaget LM Ericsson (publ)

International Classification: H01Q 1/24 (20060101); H01Q 11/08 (20060101); H01Q 11/00 (20060101); H01Q 5/00 (20060101); H01Q 001/24 ()

Expiration Date: 10/30/2018