Communications: radio wave antennas – Antennas – With coupling network or impedance in the leadin
Reexamination Certificate
2007-09-25
2007-09-25
Dinh, Trinh Vo (Department: 2821)
Communications: radio wave antennas
Antennas
With coupling network or impedance in the leadin
C343S822000, C343S7000MS, C343S702000, C343S846000
Reexamination Certificate
active
11321016
ABSTRACT:
An antenna module has a substrate, first and second coupling elements, and first and second resonant circuits disposed on the substrate. The first and second coupling elements are mounted to the substrate and particularly adapted to couple respective first and second frequency bands to a ground plane through respective first and second ports. The first resonant circuit has a plurality of components having electrical values selected so as to function as a band-pass filter within the first frequency band and to present a high impedance at least in the second frequency band. The second resonant circuit is coupled to the second port and has a plurality of components that have electrical values selected so as to function as a band-pass filter within the second frequency band and to present a high impedance at least in the first frequency band.
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“Resonator-Based Analysis of the Combination of Mobile Handset Antenna and Chassis”, Vainikainen, Pertti, IEEE Transactions on Antennas and Propagation, vol. 50, No. 10, Oct. 2002, pp. 1433-1444.
Icheln Clemens
Jorgensen Claus H.
Nielsen Bjarne K.
Ozden Sinasi
Vainikainen Pertti
Dinh Trinh Vo
Harrington & Smith PC
Nokia Corporation
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