Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2005-05-03
2005-05-03
Wimer, Michael C. (Department: 2828)
Communications: radio wave antennas
Antennas
With radio cabinet
C343S833000, C343S834000
Reexamination Certificate
active
06888505
ABSTRACT:
A microelectromechanical switch (MEMS) beam-steering antenna array is provided. The antenna comprises an active element including a selectively connectable MEMS, and a lattice of beam-forming parasitic elements, each including a selectively connectable MEMS, proximate to the active element. In some aspects, the active element is a dipole radiator having an effective quarter-wavelength odd multiple length at a first plurality of frequencies in response to connecting radiator MEMS. Likewise, the dipole counterpoise has an effective quarter-wavelength odd multiple length at the first plurality of frequencies in response to connecting counterpoise MEMS. Further, each parasitic element has an effective half-wavelength odd multiple length at the first plurality of frequencies in response to connecting their corresponding MEMS. In other aspects, the active element is a monopole and includes a radiator with a radiator MEMS, a counterpoise groundplane, and parasitic elements with MEMSs.
REFERENCES:
patent: 6392610 (2002-05-01), Braun et al.
patent: 6417807 (2002-07-01), Hsu et al.
patent: 6600456 (2003-07-01), Gothard et al.
Kyocera Wireless Corp.
Wimer Michael C.
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