发明名称 |
Array antenna apparatus for use in spread spectrum communications with a particular interval between antenna elements |
摘要 |
An array antenna apparatus for use in spread spectrum communications is provided including a plurality of antenna elements aligned on a straight line. The array antenna apparatus is used in a receiving station for receiving spread-spectrum modulated radio signals having a wavelength of a predetermined carrier frequency transmitted from transmitting stations using a two-dimensional RAKE receiving method, and for performing spread spectrum communications in code division multiple access. The plurality of antenna elements are aligned such that an interval between antenna elements adjacent to each other among the plurality of antenna elements is set to a value which is larger than one half the wavelength of the carrier frequency and which is equal to or smaller than sixteen times the wavelength of the carrier frequency so as to generate grating lobes. In this case, the interval is preferably set to a value which is an integer or fractional (decimal) multiple of one half the wavelength of the carrier frequency which is greater than unity.
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申请公布号 |
US6232927(B1) |
申请公布日期 |
2001.05.15 |
申请号 |
US19990251327 |
申请日期 |
1999.02.17 |
申请人 |
ATR ADAPTIVE COMMUNICATIONS RESEARCH LABORATORIES;KDD CORPORATION |
发明人 |
INOUE TAKASHI;KARASAWA YOSHIO |
分类号 |
H01Q3/26;H01Q3/40;H01Q21/06;H01Q21/08;H01Q25/00;H04B1/10;H04B1/707;H04J13/00;(IPC1-7):H01Q21/00 |
主分类号 |
H01Q3/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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