Array antenna capable of controlling antenna characteristic

Details Array antenna capable of controlling antenna characteristic Array antenna capable of controlling antenna characteristic

2006-09-12

2006-09-12

Nguyen, Hoang V. (Department: 2821)

Communications: radio wave antennas

Antennas

Antenna with parasitic director

C343S834000, C343S750000

Reexamination Certificate

active

07106270

ABSTRACT:
An array antenna includes a feeder element, a parasitic element implemented by a slot line, a variable capacitance element, and a directivity switching unit. The variable capacitance element is loaded in the slot line. The directivity switching unit supplies a control voltage to the variable capacitance element in order to vary the capacitance, and switches directivity of the array antenna.

REFERENCES:
patent: 6337668 (2002-01-01), Ito et al.
patent: 6606057 (2003-08-01), Chiang et al.
patent: 6864852 (2005-03-01), Chiang et al.
patent: 6894653 (2005-05-01), Chiang et al.
patent: 2002-261532 (2002-09-01), None
Yamamoto, M., et al., “Print Slot Yagi-Uda Array Antenna with Through-Hole Cavity”, Communications Society Conference 2001, B-1-159, IEICE, p. 165.
Akiyama, A., et al., “A Basic Study of Radial Line Slot Antenna for 60GHz Band Wireless LAN”, Proceedings of the 1997 IEICE General Conference, B-1-85.
Itakura, A., et al., “A Study on Double-Resonance H-Type Slot Antenna”, The IEICE Transactions on Communications (B), vol. J86-B, No. 12 (Dec. 2003) pp. 2533-2542.

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