Title:
ＨＡＰＳのサービスリンクにおけるアンテナ取付プレートからの反射波干渉抑制
Document Type and Number:
Japanese Patent JP7089556
Kind Code:
B2
Abstract:
Provided is an aerial-staying type communication relay apparatus that can suppress fluctuations in a directivity pattern due to reflection at an antenna-mounting member to which a service link antenna is mounted, stably fix a footprint of a cell, and as a result, prevent deterioration of communication quality. The communication relay apparatus comprises an antenna having plural antenna elements that form a cell for performing a radio communication of a service link to and from the terminal apparatus and an antenna-mounting member to which the antenna is mounted, and a layer of radio wave absorber or a layer of frequency-selective electromagnetic shielding member that selectively shields radio waves having a frequency of the service link, which is provided on an outer surface exposed to an outside of the antenna-mounting member. Phases and amplitudes of plural transmission and reception signals transmitted and received via each of the plural antenna elements of the antenna may be controlled so as to form an antenna directional beam having a target beam width, a target horizontal angle and a target vertical angle.
Inventors:
Wataru Sudo
Kenji Hoshino
Gosuke Hayashi
Kenji Hoshino
Gosuke Hayashi
Application Number:
JP2020115954A
Publication Date:
June 22, 2022
Filing Date:
July 03, 2020
Export Citation:
Assignee:
haps mobile corporation
International Classes:
H01Q1/52; H01Q3/26; H01Q17/00
Domestic Patent References:
| JP2020036070A | ||||
| JP2008523708A | ||||
| JP11088042A | ||||
| JP2009232213A |
Attorney, Agent or Firm:
Kuroda Toshi
Hiromichi Nakamura
Hiromichi Nakamura