公开(公告)号：US20220320742A1

公开(公告)日：2022-10-06

申请号：US17615926

申请日：2020-05-14

Applicant: NEC Corporation

Inventor： Naoyuki ORIHASHI

IPC: H01Q13/08 ,  H01Q19/185

Abstract: An antenna element according to the present invention includes a substrate, an emitting element disposed on the substrate, and metal patterns formed in the same surface of the same substrate as those of the emitting element, and disposed so as to be in an electrically floating state, in which the metal patterns are disposed at such positions that the metal patterns have a specific distance from the emitting element.

公开(公告)号：US20160036510A1

公开(公告)日：2016-02-04

申请号：US14877053

申请日：2015-10-07

Applicant: NEC CORPORATION

Inventor： Kenichi HOSOYA ,  Kenichi MARUHASHI ,  Naoyuki ORIHASHI

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/04

CPC classification number: H04B7/0617 ,  H04B7/0408 ,  H04B7/061 ,  H04B7/0695 ,  H04B7/086 ,  H04B7/088 ,  H04L5/0048

Abstract: When communication is to be performed between communication devices having a directivity control function, a plurality of antenna-setting pairs available for the communication are stored by an initial training, and the communication is started by using one of the plurality of antenna-setting pairs. When the communication quality is deteriorated, firstly, a training signal is transmitted while successively setting each one of the plurality of antenna-setting candidates determined in the initial training in a transmitting antenna of one of the communication devices (400), and the training signal is received in a state where a quasi-omni pattern is generated in a receiving antenna of the other communication device (500). In this way, in radio communication performing beam forming, it is possible to ensure the time synchronization between the communication devices when communication is disconnected or communication quality is deteriorated due to shielding or the like.

Abstract translation: 当在具有方向性控制功能的通信设备之间进行通信时，通过初始训练来存储可用于通信的多个天线设置对，并且通过使用多个天线设置对之一来开始通信。 当通信质量恶化时，首先，在通信装置（400）中的一个的发送天线中连续设置在初始训练中确定的多个天线设定候补中的每一个天线设定候补的训练信号，并且训练信号 在其他通信设备（500）的接收天线中产生准全向模式的状态下被接收。 以这种方式，在执行波束形成的无线电通信中，当通信断开或通信质量由于屏蔽等而劣化时，可以确保通信装置之间的时间同步。

公开(公告)号：US20160028141A1

公开(公告)日：2016-01-28

申请号：US14379754

申请日：2013-01-18

Applicant: NEC Corporation

Inventor： Masatoshi SHIMIZU ,  Naoyuki ORIHASHI

IPC: H01P3/12 ,  H01Q13/00 ,  H01Q1/24 ,  H01Q19/10

CPC classification number: H01P3/12 ,  H01P1/042 ,  H01Q1/22 ,  H01Q1/24 ,  H01Q13/00 ,  H01Q19/10 ,  H01Q19/134

Abstract: Antenna 2 and radio communication apparatus 1 include mount portions 9 and 15, flat proximity opposing surfaces 13 and 20, and waveguide portions 12 and 19 penetrating through proximity opposing surfaces 13 and 20, respectively. For example, in proximity opposing surface 13 of radio communication apparatus 1, choke groove 14 is formed outside waveguide portion 12. With mount portions 9 and 15 of antenna 2 and radio communication apparatus 1 abutted against and fixed to each other, proximity opposing surfaces 13 and 20 are set parallel to, and directly opposite to each other with a clearance interposed therebetween so that waveguide portions 12 and 19, opposite to each other and with a clearance, form a waveguide.

Abstract translation: 天线2和无线电通信装置1包括安装部分9和15，平坦邻近的相对表面13和20以及分别穿过接近相对表面13和20的波导部分12和19。 例如，在无线通信装置1的邻近对置面13上形成有扼流槽14，形成在波导部12的外侧。由于天线2的安装部9和15以及无线通信装置1彼此抵靠固定， 并且20彼此平行并且彼此直接相对设置，其间插入间隙，使得彼此相对并且具有间隙的波导部分12和19形成波导。

公开(公告)号：US20210161005A1

公开(公告)日：2021-05-27

申请号：US17102727

申请日：2020-11-24

Applicant: NEC CORPORATION

Inventor： Naoyuki ORIHASHI

IPC: H05K1/02 ,  H05K1/11

Abstract: An electronic circuit apparatus according an aspect of the present disclosure includes a substrate, an electronic circuit disposed on the substrate, and metal patterns and formed on the same surface as a surface on which the electronic circuit is disposed, the metal patterns and being provided so as to be in an electrically floating state, in which the metal patterns and are disposed at places where they have a specified distance from the electronic circuit.

公开(公告)号：US20170104258A1

公开(公告)日：2017-04-13

申请号：US15129243

申请日：2015-02-27

Applicant: NEC Corporation

Inventor： Naoyuki ORIHASHI

IPC: H01P5/08 ,  H03H7/38 ,  H01P1/06

CPC classification number: H01P5/107 ,  H01P1/062 ,  H01P5/04 ,  H01P5/08 ,  H01P11/001 ,  H01P11/002 ,  H03H7/38

Abstract: Impedance optimization is difficult in microwave-band waveguide converters. To solve that problem, this waveguide converter is provided with the following: a waveguide provided so as to introduce microwaves to an antenna that performs input and output in a planar microwave circuit; a terminal waveguide that faces the aforementioned waveguide with the antenna interposed therebetween and connects to said waveguide so as to terminate same; and a conductor plate mounted so as to face the antenna. The conductor plate is electrically connected to at least part of the inside wall of the terminal waveguide.