发明名称 |
High-frequency oscillation apparatus, radio apparatus, and radar |
摘要 |
A high-frequency oscillation apparatus wherein an oscillation signal output from a voltage controlled oscillator (VCO) is transferred through a transfer line to a resonator and the resonator is excited. The resonator is coupled with a second transfer line and an RF signal having a level corresponding to the frequency of the oscillation signal is transferred through the second transfer line. When the resonant frequency of the resonator is set to a frequency higher than the oscillation-frequency modulation range of the VCO, the oscillation frequency and the RF-signal level have one-to-one correspondence. A detector detects the RF signal and outputs to a control section. The control section compensates a control voltage signal applied to the VCO according to the detected-signal level, and outputs the control voltage signal to the VCO to compensate the oscillation signal of the VCO. <IMAGE> |
申请公布号 |
EP1458089(A1) |
申请公布日期 |
2004.09.15 |
申请号 |
EP20030029780 |
申请日期 |
2003.12.23 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
KATO, TAKATOSHI;ISHII, TORU;NAKAMURA, FUMINORI |
分类号 |
G01S7/35;G01S13/34;H03B5/18;H03D9/04;H03L1/02;H03L7/00 |
主分类号 |
G01S7/35 |
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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