Reconfigurable multifrequency antenna with RF-MEMS switches
First Claim
1. A reconfigurable antenna comprising:
- a substrate;
a metallic antenna patch structure formed on a surface of said substrate, said antenna structure including symmetrically opposed fractal geometry antenna patches defining a reconfigurable self-similar configuration;
switches operatively connecting adjacent antenna patches on each arm of the self-similar configuration;
a DC voltage source for selectively actuating said switches; and
a plurality of bias lines electrically coupled to the DC voltage source and at least one of the switches, the plurality of bias lines comprising bias line portions which are parallel to each other and to an adjacent antenna patch edge to constructively interfere with the antenna'"'"'s radiation pattern during operation.
4 Assignments
0 Petitions
Accused Products
Abstract
A self-similar multiband reconfigurable antenna includes a planar antenna structure formed on a surface of a substrate, the antenna structure including symmetrically opposed self-similar geometry antenna arms defining a self-similar or Sierpinski gasket configuration for each arm of the antenna. MEMS type switches are provided for operatively connecting adjacent antenna patches on each arm of the antenna configuration, and a voltage source is provided for selectively actuating the switches. Selective actuation of the switches enables up to four different antenna configurations each having a different resonant frequency, and wherein each resonant frequency demonstrates a similar radiation pattern.
-
Citations
34 Claims
-
1. A reconfigurable antenna comprising:
-
a substrate; a metallic antenna patch structure formed on a surface of said substrate, said antenna structure including symmetrically opposed fractal geometry antenna patches defining a reconfigurable self-similar configuration; switches operatively connecting adjacent antenna patches on each arm of the self-similar configuration; a DC voltage source for selectively actuating said switches; and a plurality of bias lines electrically coupled to the DC voltage source and at least one of the switches, the plurality of bias lines comprising bias line portions which are parallel to each other and to an adjacent antenna patch edge to constructively interfere with the antenna'"'"'s radiation pattern during operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A method for fabricating an RF-MEMS-based self-similar reconfigurable antenna comprising:
-
forming a substrate of a high resistivity material; forming an antenna structure on a surface of said substrate, said antenna structure including symmetrically opposed triangular antenna patches defining a self-similar antenna configuration; operatively connecting adjacent antenna patches on each arm of the self-similar configuration with an RF-MEMS switch using a plurality of bias lines electrically coupled to a power source, wherein the plurality of bias lines are formed to comprise bias line portions which are parallel to each other and to an edge of one of the triangular antenna patches to constructively interfere with the antenna'"'"'s radiation pattern during operation; and selectively actuating said switches with the power source, wherein the power source outputs of about 40 Volts. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
-
Specification