Communications: radio wave antennas – Antennas – Slot type
Reexamination Certificate
2008-07-22
2008-07-22
Dinh, Trinh V (Department: 2821)
Communications: radio wave antennas
Antennas
Slot type
C343S767000, C343S768000, C343S846000, C343S876000
Reexamination Certificate
active
11905001
ABSTRACT:
With a differential feed line103c, slot resonators601, 603, 605, and607are allowed to operate in pair, a slot length of each resonator corresponding to a ½ effective wavelength during operation. Slot resonators which are excited out-of-phase with an equal amplitude are allowed to exist within the circuitry. Thus, positioning condition of selective radiation portions601b, 601c, 603b, 603c, 605b, and607bin the slot resonators is switched.
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International Search Report issued in corresponding International Patent Application No. PCT/JP2007/056215, dated Apr. 17, 2007.
Garg, R., et al. “Microstrip Slot Antennas”, Microstrip Antenna Design Handbook, 2001, pp. 441-443, Artech House Inc., Norwood, MA.
Kanno Hiroshi
Sangawa Ushio
Dinh Trinh V
McDermott Will & Emery LLP
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