Communications: radio wave antennas – Antennas – Slot type
Reexamination Certificate
2007-06-05
2007-06-05
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
Slot type
C343S769000
Reexamination Certificate
active
10499638
ABSTRACT:
The present invention relates to a device for the reception and/or the transmission of electromagnetic signals comprising at least one means of reception and/or of transmission of electromagnetic signals, consisting of an antenna of the slot type and a feed line coupled electromagnetically with the slot of the antenna so as to connect the means of reception and/or of transmission of electromagnetic signals to means of utilization of the signals, the feed line being coupled electromagnetically with the slot at two points chosen such that the electromagnetic waves exhibit a circular polarization.
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X.M. Wing et al.: “Circularly polarised circular ring slot antenna fed by stripline hybrid coupler” Electronics Letter, IEE Stevenage, GB, vol. 35, No. 25, Dec. 9, 1999, pp. 2154-2155.
H. Tehrani et al: “A Multi-Frequency Microstrip-Fed Annular Slot Antenna” IEEE Antennas and Propagation Society International Symposium, 2000 Digest. APS, Salt Lake City, UT, Jul. 16-21, 2000, New York, vol. 2 of 4, Jul. 16, 2000, pp. 632-635.
Le Bolzer Françoise
Louzir Ali
Minard Philippe
Thudor Franck
Cromarty Brian J.
Ho Tan
Laks Joseph J.
Shedd Robert D.
Thomson Licensing
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