Antenna device and radio device comprising the same

Details Antenna device and radio device comprising the same Antenna device and radio device comprising the same

1999-02-18

2000-11-14

Wilmer, Michael C.

Communications: radio wave antennas

Antennas

Microstrip

343702, 343725, H01Q 138, H01Q 501

Patent

active

061476501

ABSTRACT:
The invention provides An antenna device, comprising: a substrate made of an insulation material and including a first major surface and a second major surface face; a ground electrode provided substantially on the whole of the first major surface of said substrate; and an inverted F-shape antenna and a microstrip antenna respectively provided on the surface of the substrate. An open end of a radiation electrode of the microstrip antenna and a feeding electrode of the inverted F-shape antenna are capacitively coupled to each other. A first direction through the open end and ground end of the radiation electrode of the inverted F-shape antenna is substantially perpendicular to a second direction through the open end and ground end of the radiation electrode of the microstrip antenna. By the above arrangement, a mutual interference hardly occurs between the two antennas.

REFERENCES:
patent: 5365246 (1994-11-01), Rasinger et al.
patent: 5966097 (1999-10-01), Fukasawa et al.

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