Antenna unit

Details Antenna unit Antenna unit

2007-02-13

2007-02-13

Nguyen, Hoang V. (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S702000, C343S841000, C343S872000, C455S090300, C455S575500

Reexamination Certificate

active

10536981

ABSTRACT:
This antenna unit is adapted to be connected to an electronic device for transmitting a received radio signal to the electronic device. The antenna unit comprises a noise canceller for canceling noise generated in the electronic device and transmitted to the antenna unit through a ground line. The noise canceller is a conductive stub piece one end of which is electrically connected to an electromagnetic shield of the antenna unit and the other end of which is a free end. The stub piece has a length of about ¼ of a wavelength of the radio signal.

REFERENCES:
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PCT International Search Report for PCT/JP2004/015782 mailed on Feb. 22, 2005.
Supplementary European Search Report dated Aug. 16, 2006 for Application No. 04792919.5-2411.
George E. Ponchak et al.: “Open- and Short-Circuit Terminated Series Stubs in Finite-Width Coplanar Waveguide on Silicon”, IEEE Transactions On Microwave Theory And Techniques, IEEE Service Center, Piscataway, NJ, US, vol. 45, No. 6, Jun. 1997.

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