发明名称 |
RADAR DISTANCE MEASURING DEVICE |
摘要 |
A conventional radar module (1) for level measurements is designed for operation within a specific, narrowly restricted frequency range. To enable level measurements to be implemented at a substantially higher frequency without involving any change in the existing radar module (1) whatsoever, a frequency converter circuit (2) is inserted between the duplexer antenna (7) designed for said higher frequency and the antenna port (A) of the radar module (1). This frequency converter circuit (2) which can be realized at small expense converts the lower frequency into the higher frequency in the direction from the radar module (1) to the antenna (7) and the higher frequency into the lower frequency in the opposite direction.
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申请公布号 |
CA2149328(C) |
申请公布日期 |
1998.09.22 |
申请号 |
CA19942149328 |
申请日期 |
1994.09.12 |
申请人 |
ENDRESS + HAUSER GMBH + CO.;ENDRESS + HAUSER GMBH + CO. |
发明人 |
BURGER, STEFAN;OTTO, JOHANNGEORG |
分类号 |
G01F23/284;G01S7/02;G01S7/03;G01S7/28;G01S13/08;G01S13/34;G01S13/88;H03D9/00;H03D9/06;(IPC1-7):G01S13/08 |
主分类号 |
G01F23/284 |
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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