| US 7,492,841 B2 | ||
| Relative phase/amplitude detection system | ||
| Barry Mark Fisher, Dallas, Tex. (US); Jonathon C. Veihl, McKinney, Tex. (US); Jeramy Scott Leonard, Sachse, Tex. (US); and Donald G. Jackson, Garland, Tex. (US) | ||
| Assigned to Andrew Corporation, Westbrook, Ill. (US) | ||
| Filed on Jan. 30, 2003, as Appl. No. 10/354,878. | ||
| Prior Publication US 2004/0151265 A1, Aug. 05, 2004 | ||
| Int. Cl. H04B 7/10 (2006.01) | ||
| U.S. Cl. 375—347 [375/347; 455/132; 455/296; 342/371] | 66 Claims |
| 1. A method of determining a relative phase relationship between antenna elements comprising:
applying an applied signal to the antenna elements;
obtaining coupled signals from the antenna elements correlated to the applied signal;
electrically modifying a first of the coupled signals in a predetermined manner;
generating a first set of data correlated to an unmodified second of the coupled signals that has a generally constant phase
and the electrically modified first of the coupled signals;
further electrically modifying the first coupled signal in a second predetermined manner;
generating a second set of data correlated to the unmodified second coupled signal and the further electrically modified coupled
signal; and
determining the relative phase relationship between the antenna elements from the first and second set of data.
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