Communications: radio wave antennas – Antennas – Loop type
Reexamination Certificate
2006-08-15
2006-08-15
Nguyen, Hoang V. (Department: 2821)
Communications: radio wave antennas
Antennas
Loop type
C343S741000
Reexamination Certificate
active
07091925
ABSTRACT:
An indoor UHF antenna device for a digital television includes a flat structural design. The flat indoor UHF antenna device includes a circuit board having a wireless signal processing circuit and an antenna. A metal wire bent as a long rectangular antenna and having a gap forms the antenna. Two signal feeder points are defined at two locations having a same distance from two long sides of the long rectangular antenna respectively, and thereby the antenna includes a first antenna part having a gap and a second antenna part for impedance matching. The antenna is set horizontally on the circuit board with the signal feeder points welded on the circuit board. Thereby the antenna device of the present invention is enhanced to receive wireless signals of polarized waves transmitted by different transmitters.
REFERENCES:
patent: 4570165 (1986-02-01), Tsurumaru et al.
patent: 5552796 (1996-09-01), Diamond
patent: 6342862 (2002-01-01), Schoenthal
patent: 6429828 (2002-08-01), Tinaphong et al.
Nguyen Hoang V.
Pelton, Esq. William E.
Trans Electric Co., Ltd.
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