Communications: radio wave antennas – Antennas – With grounding structure
Reexamination Certificate
2007-09-11
2007-09-11
Reichard, Dean A. (Department: 2841)
Communications: radio wave antennas
Antennas
With grounding structure
C343S702000, C343S848000, C343S841000, C174S051000, C174S078000, C361S748000, C361S780000
Reexamination Certificate
active
10478509
ABSTRACT:
A second ground plane (18); has one end opposite to a connector (14), which end is connected to a first ground plane (17) by resistor connection element (41). Accordingly, it is possible to lower Q of resonance of the ground structure by the resistor connection element (41) and to prevent generation of an intense electromagnetic field attributed to an electromagnetic field of a data processing circuit. Especially when the resistor connection element (41) has a resistance value identical to a characteristic impedance of the ground structure, the ground structure is terminated in a matched way and it is possible to assure prevention of generation of an electromagnetic field attributed to resonance.
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Kuriyama Toshihide
Sasaki Hideki
NEC Corporation
Nguyen Hoa C
Reichard Dean A.
Young & Thompson
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