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:
Dec. 03, 2019
Filed:
Jun. 05, 2018
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Ai-ichiro Sasaki, Atsugi, JP;
Junichi Kodate, Atsugi, JP;
Abstract
In an antenna circuit including an antennaand an antennathat is connected in series with the antennaand includes inductance, a variable capacitor Cand a variable resistor Rconnected in parallel with the antennaare provided. This enables controlling of an actual amplitude ratio r and a phase difference θ between currents Iand Iflowing through the two antennasandinto desired values. Flows of the currents Iand Iwith the phase difference θ through the antennasandenable forming of a favorable communication area. In addition, setting of the actual amplitude ratio r between the currents Iand Iflowing through the antennasandto a value other than 1 enables forming of an asymmetric communication area.