发明名称 |
Polarized wave measuring apparatus, and antenna characteristic measuring apparatus and radio wave measuring apparatus using the same |
摘要 |
A phase shift section phase-shifts the second band-restricted signal to a first phase-shifted signal and a second phase-shifted signal having a phase that is different from the phase of the first phase-shifted signal by 90 degrees. A first signal mixing section mixes the first band-restricted signal and the first phase-shifted signal. A second signal mixing section mixes the second band-restricted signal and the second phase-shifted signal. A phase difference calculation section calculates the phase difference value from the first mixed signal and the second mixed signal stripped of frequencies other than a desired baseband frequency. A polarization calculation section calculates reception polarization from the first reception field intensity value, second reception field intensity value and phase difference value.
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申请公布号 |
US2004104843(A1) |
申请公布日期 |
2004.06.03 |
申请号 |
US20030473592 |
申请日期 |
2003.10.10 |
申请人 |
MIMURA MASAHIRO;NAKAGAWA YOICHI;MIYANO KENTARO;KOYANAGI YOSHIO |
发明人 |
MIMURA MASAHIRO;NAKAGAWA YOICHI;MIYANO KENTARO;KOYANAGI YOSHIO |
分类号 |
G01R29/10;G01R29/08;H04B7/08;H04B7/10;H04B17/00;(IPC1-7):H04B7/10;H01Q21/06 |
主分类号 |
G01R29/10 |
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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