Inverted-F antenna

Details Inverted-F antenna Inverted-F antenna

2005-05-17

2005-05-17

Nguyen, Hoang V. (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S702000

Reexamination Certificate

active

06894647

ABSTRACT:
A coupled-feed inverted-F antenna is provided comprising a transmission line port, an open radiator with an unterminated end, a shorted “L” shaped radiator connected to the open radiator with a terminated end, a coupled-feed connected between the transmission line port signal interface and the open and shorted radiators, and a groundplane. The coupled-feed is oriented parallel to the open radiator. A coplanar inverted-F antenna is provided comprising a transmission line port, an open radiator oriented in a first plane, a shorted “L” shaped radiator oriented in the first plane connected to the open radiator and having an terminated end, a feed oriented in the first plane and connected between the transmission line port signal interface and the radiators, and a groundplane oriented in the first plane. The shorted radiator is terminated in the transmission line port ground interface. The antenna may also employ both coplanar and coupled-feed features.

REFERENCES:
patent: 6404395 (2002-06-01), Masuda
patent: 6611235 (2003-08-01), Barna et al.
patent: 6639560 (2003-10-01), Kadambi et al.
patent: 20040066334 (2004-04-01), Fang et al.
patent: 20040113848 (2004-06-01), Gaucher et al.

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