发明名称 |
RADAR DEVICE, CIRCULATOR FOR RADAR DEVICE, WAVEGUIDE TYPE FILTER FOR RADAR DEVICE AND MAGNETRON FOR RADAR DEVICE |
摘要 |
<p>PROBLEM TO BE SOLVED: To reliably suppress so-called second harmonic spurious to a low level. SOLUTION: Inside of the neighborhood of the first port to which the transmission part of a circulator 104 is connected, reactance elements 10a and 10b are arranged at a prescribed position from the center of a microwave ferrite 5 to generate resonance to the second harmonic of the basic wave frequency of magnetron. Thus, the transmission radio of a so-calledπ-1 mode frequency is attenuated to lower the level of spurious radiation.</p> |
申请公布号 |
JP2001196808(A) |
申请公布日期 |
2001.07.19 |
申请号 |
JP20000008315 |
申请日期 |
2000.01.17 |
申请人 |
NEW JAPAN RADIO CO LTD |
发明人 |
YAMASHITA TOSHIHIKO;OBATA HIDEYUKI;AKASHI NAOKI |
分类号 |
H01J23/40;G01S7/03;H01P1/212;H01P1/213;H01P1/39;H01P3/14;(IPC1-7):H01P1/213 |
主分类号 |
H01J23/40 |
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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