Title:
TRANSMISSION SIGNAL PROCESSOR, AND TRANSMITTER
Document Type and Number:
Japanese Patent JP2019057768
Kind Code:
A
Abstract:
To suppress a reduction in a coverage area in a distance direction when a signal is transmitted by a semi-opening.SOLUTION: A first hybrid coupler has a first terminal to which a first signal is input, and a second terminal, a third terminal and a fourth terminal that are adjacent to the first terminal and are connected to a first antenna element. A second hybrid coupler has a fifth terminal to which a second signal is input, and a sixth terminal, a seventh terminal and an eighth terminal that are adjacent to the fifth terminal and are connected to a second antenna element. A first cut-off part is provided on a path that connects the third terminal of the first hybrid coupler and the seventh terminal of the second hybrid coupler, and cuts-off a distribution of the signals between the third terminal and the seventh terminal on predetermined conditions. The second cut-off part is provided on a path that connects the fourth terminal of the first hybrid coupler and the eighth terminal of the second hybrid coupler, and cuts-off a distribution of the signals between the fourth terminal and the eighth terminal on the predetermined conditions.SELECTED DRAWING: Figure 3
Inventors:
YAMAMOTO SHINYA
Application Number:
JP2017179732A
Publication Date:
April 11, 2019
Filing Date:
September 20, 2017
Export Citation:
Assignee:
TOSHIBA CORP
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORP
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORP
International Classes:
H01P1/16; H01P5/22; H01Q3/24; H01Q21/06; H04B7/06
Attorney, Agent or Firm:
Shiga International Patent Office