Antenna device for compound portable terminal

Details Antenna device for compound portable terminal Antenna device for compound portable terminal

2004-08-13

2008-03-11

Ho, Tan (Department: 2821)

Communications: radio wave antennas

Antennas

Antenna with parasitic director

C343S7000MS, C343S702000

Reexamination Certificate

active

07342552

ABSTRACT:
In a compound portable terminal which supports two communication standards using different frequencies when an antenna is prepared for each communication standard, radio interference occurs in two antennas, and there is a possibility that bit errors increase. To avoid this possibility, there is a problem that two antennas need to be separated from each other as far as possible. To solve this problem, two elements are disposed in the vicinity of each other, a feeding terminal and a ground terminal are disposed in one of the elements, and a ground terminal is disposed in the other element. The other element has no feeding element. When transmission is performed from the feeding terminal, an induced current is produced in the element having no feeding terminal, and each element is excited by individual resonance frequency, and operate as antennas.

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