Antenna diversity in wireless communication terminals

Details Antenna diversity in wireless communication terminals Antenna diversity in wireless communication terminals

1997-07-25

1999-05-18

Kim, Robert H.

Communications: radio wave antennas

Antennas

With radio cabinet

343700MS, 343724, 343866, 343853, 343871, H01Q1/24

Patent

active

059054670

ABSTRACT:
A wireless communication terminal comprises a first housing section including an antenna for enabling wireless communications with the terminal and a second housing section including a second communications antenna, the second housing section being extendibly connected to the first housing in an manner such that when the second housing section is in its extended position the second antenna is located one half wavelength from the first antenna. One or both of the antennas may be a fixed type, e.g., a whip or stub, or a retractable type, e.g., telescoping. The antennas may be located external or may be internal (e.g., patch type antennas) to the housing sections.

REFERENCES:
patent: 4992799 (1991-02-01), Garay
patent: 5337061 (1994-08-01), Pye et al.
patent: 5561437 (1996-10-01), Phillips et al.
patent: 5564078 (1996-10-01), Nagai
patent: 5572223 (1996-11-01), Phillips et al.
patent: 5649306 (1997-07-01), Vannatta et al.

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