Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2007-07-16
2008-12-30
Mancuso, Huedung (Department: 2821)
Communications: radio wave antennas
Antennas
With radio cabinet
Reexamination Certificate
active
07471252
ABSTRACT:
An antenna structure including a dielectric base member provided in a non-ground region of a circuit board and a feed radiation electrode provided on the dielectric base member. An outer side surface of the dielectric base member along an edge of one end of the circuit board defines a side surface. A feed electrode is provided in the non-ground region of the circuit board or outside the circuit board such that the feed electrode is disposed along side surfaces of the dielectric base member. One end of the feed radiation electrode defines a feed end connected to the feed electrode, and the other end of the feed radiation electrode defines an open end. The feed radiation electrode has a configuration in which a current path extending from the feed end to the open end has a loop shape so as to be provided on at least the side surface and an upper surface of the dielectric base member. A feed radiation electrode portion formed on the side surface of the dielectric base member6forms a capacitance between the feed radiation electrode portion and the feed electrode for improving antenna characteristics.
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Izawa Masahiro
Onaka Kengo
Sato Jin
Dickstein , Shapiro, LLP.
Mancuso Huedung
Murata Manufacturing Co. Ltd.
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