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:
Jan. 01, 2002
Filed:
Oct. 16, 1998
Ryo Yamaguchi, Yokohama, JP;
Yoshio Ebine, Yokohama, JP;
NTT Mobile Communication Network Inc., Tokyo, JP;
Abstract
The outputs of antenna elements to of a wide directional pattern are distributed by a distributor to respective channel parts to , and in each channel part (i=1, 2, . . . , N), its connection points to to the distributor are divided in groups of P=4; four connecting ends of the respective groups are connected via level-phase regulators to to combiners to (L=M/P), then the combined outputs therefrom are applied to receivers to , and the outputs therefrom are combined after being applied to regulators to which are adaptively controlled. In the channel part , coefficients W to W are set in regulators to to obtain a subarray directional pattern and a combined directional pattern is controlled within the range of the subarray directional pattern, and in another channel part coefficients W to W are set in the regulators to to obtain a subarray directional pattern ; by setting the regulators to of each channel part, a wide area is covered as a whole.