Transmission line phase shifter with controllable high permittivity dielectric element
First Claim
1. A transmission line phase shifter comprising:
- a signal conductor;
a high-permittivity dielectric self-supporting layer overlying said signal conductor, said high-permittivity dielectric self-supporting layer including a high-permittivity dielectric material; and
a controller for controlling the interaction of the permittivity of the high-permittivity dielectric element with the signal conductor, said controller including an electromechanical system for controlling the position of said high-permittivity dielectric self-supporting layer with respect to said signal conductor by moving said high-permittivity dielectric self-supporting layer toward and away from said signal conductor.
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Accused Products
Abstract
A transmission line phase shifter ideally suited for use in low-cost, steerable, phased array antennas suitable for use in wireless fidelity (WiFi) and other wireless telecommunication networks, in particular multi-hop ad hoc networks, is disclosed. The transmission line phase shifter includes a wire transmission line, such as a coaxial, stripline, microstrip, or coplanar waveguide (CPW) transmission line. A high-permittivity dielectric element that overlies the signal conductor of the wire transmission line is used to control phase shifting. Phase shifting can be electromechanically controlled by controlling the space between the high-permittivity dielectric element and the signal conductor of the wire transmission line or by electrically controlling the permittivity of the high-permittivity dielectric element.
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Citations
12 Claims
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1. A transmission line phase shifter comprising:
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a signal conductor; a high-permittivity dielectric self-supporting layer overlying said signal conductor, said high-permittivity dielectric self-supporting layer including a high-permittivity dielectric material; and a controller for controlling the interaction of the permittivity of the high-permittivity dielectric element with the signal conductor, said controller including an electromechanical system for controlling the position of said high-permittivity dielectric self-supporting layer with respect to said signal conductor by moving said high-permittivity dielectric self-supporting layer toward and away from said signal conductor. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A transmission line phase shifter comprising:
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a signal conductor; a high-permittivity dielectric element overlying said signal conductor, said high-permittivity dielectric element is a cylinder that includes a high-permittivity material; and a controller for controlling the interaction of the permittivity of the high-permittivity dielectric element with the signal conductor, said controller including an electromechanical system for controlling the position of said high-permittivity dielectric element with respect to said signal conductor by rotating said cylinder along an axis offset from the axis of said cylinder. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification