发明名称 |
ULTRASONIC VOLUME-ACOUSTIC-WAVE DELAY LINE |
摘要 |
processing volume-acoustic-wave radio signals. SUBSTANCE: proposed delay line that may be found useful for broad-band communication systems, radar and electronic countermeasures systems, and also for various calibrators including radar range and altimeter calibrators has three-arm circulator and sound conductor built around piezoelectric crystal one of whose faces mounts radiating and ultrasound-receiving piezoelectric transducer; input signal is passed to delay line via first arm of circulator whose second arm is loaded into piezoelectric transducer and third arm functions as delay line output; piezoelectric transducer mounted on upper face of sound conductor is made in the form of interdigital transducer; one part of face opposite to transducer is made in the form of concave acoustic mirror and its other part is coated with sound-absorbing material. EFFECT: facilitated manufacture, simplified design. 4 dwg
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申请公布号 |
RU2169429(C1) |
申请公布日期 |
2001.06.20 |
申请号 |
RU20000109987 |
申请日期 |
2000.04.18 |
申请人 |
TAGANROGSKIJ GOSUDARSTVENNYJ RADIOTEKHNICHESKIJ UN;IVERSITET |
发明人 |
ROZDOBUD'KO V.V.;PEREVOSHCHIKOV V.I. |
分类号 |
H03H9/00;H03H9/30;(IPC1-7):H03H9/00 |
主分类号 |
H03H9/00 |
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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