Low-cost, steerable, phased array antenna with controllable...

Details Low-cost, steerable, phased array antenna with controllable... Low-cost, steerable, phased array antenna with controllable...

2006-04-25

2006-04-25

Lee, Benny T. (Department: 2817)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

C342S375000, C333S161000

Reexamination Certificate

active

07034748

ABSTRACT:
A low-cost, steerable, phased array antenna suitable for use in wireless fidelity (WiFi) and other wireless telecommunication networks, in particular multi-hop ad hoc networks, is disclosed. Various embodiments of an antenna assembly that includes a plurality of linear phased array antennas fed by corporate feeds are disclosed. The corporate feeds are implemented as parallel wire transmission lines, such as a coaxial, stripline, microstrip, or coplanar waveguide (CPW) transmission line. Selected branches of the corporate feed network include transmission line phase shifters oriented and sized so as to allow a high-permittivity dielectric element to control phase shifting. Thus, the corporate feed forms a phase shifting feed whose phase shift is controllable. Phase shifting can be electromechanically controlled by controlling the space between the high-permittivity dielectric element and the phase shifting branches of the corporate feed or by electrically controlling the permittivity of the high-permittivity dielectric element.

REFERENCES:
patent: 5406233 (1995-04-01), Shih et al.
patent: 5472935 (1995-12-01), Yandrofski et al.
patent: 5694134 (1997-12-01), Barnes
patent: 6611230 (2003-08-01), Phelan
patent: 6662029 (2003-12-01), Eden et al.

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