The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2001
Filed:
Apr. 23, 1999
Joël Herault, Igny, FR;
Michel Soiron, Chavenay, FR;
Gérard Garnier, Gig sur Yvette, FR;
Thomson-CSF, Paris, FR;
Abstract
A multiple-beam electronic scanning antenna including an array of phase-shifters (2, D,). The N simultaneous beams are obtained in N directions by a law of excitation (f,) applied to each computed phase-shifter (D,) by summing the phase laws &psgr;,, &psgr;,, . . . &psgr;,, . . . &psgr;,associated respectively with each 1, 2, . . . k, . . . N order direction and by applying the resultant phase-shift (&psgr;t,) to the phase-shifter, without applying the resultant amplitude modulation (&rgr;,). The multiple-beam electronic scanning antenna especially is applicable to uniquely phase-controlled antennas in satellite or terrestrial communications requiring simultaneous communications with several variable sites.