Title:
【発明の名称】アダプティブアレーアンテナ、アダプティブアレーアンテナの受信系統の校正量算出方法及び校正方法
Document Type and Number:
Japanese Patent JP3502348
Kind Code:
B2
Abstract:
An adaptive array antenna comprising a plurality of array antennas including a plurality of antenna elements which are spaced at intervals at which a large correlation is exhibited, said array antennas being spaced at intervals at which the correlation is negligible, wherein diversity effects such as fading compensation are produced, interference waves coming from the same direction are eliminated, the gain is augmented by main beam tracking, and one or more calibration signal coupling parts and multi-beam synthesizing circuit are provided so as to remove individual variations in calibration signals and to perform highly reliable calibration.
Inventors:
Ryo Yamaguchi
Application Number:
JP2000559615A
Publication Date:
March 02, 2004
Filing Date:
July 09, 1999
Export Citation:
Assignee:
NTT DoCoMo, Inc.
International Classes:
H01Q3/26; H04B7/04; H04B7/08; (IPC1-7): H01Q3/26; G01R29/10
Domestic Patent References:
| JP6224704A | ||||
| JP6224703A | ||||
| JP6224702A | ||||
| JP4248476A | ||||
| JP2265302A | ||||
| JP10503892A |
Other References:
井原泰介，山口良，Ｗ−ＣＤＭＡアダプティブアレーアンテナにおけるアレー素子間隔の影響，１９９８年電子情報通信学会通信ソサイエティ大会講演論文集１，日本，社団法人電子情報通信学会，１９９８年 ９月 ７日，ＳＢ−１−１８
山口良他，移動通信基地局アダプティブアレーにおけるサブアレー化に関する検討，１９９７年電子情報通信学会通信ソサイエティ大会講演論文集１，日本，社団法人電子情報通信学会，１９９７年 ８月１３日，Ｂ−１−６６
山口良他，移動通信基地局アダプティブアレーにおけるサブアレー化に関する検討，１９９７年電子情報通信学会通信ソサイエティ大会講演論文集１，日本，社団法人電子情報通信学会，１９９７年 ８月１３日，Ｂ−１−６６
Attorney, Agent or Firm:
Tadahiko Ito