Invention Grant
US07265711B2 High-frequency oscillator, high-frequency transmission-reception apparatus using the same, radar apparatus, and radar-apparatus-equipped vehicle and small boat equipped with the same
失效
高频振荡器，使用该高频振荡器的高频发送接收装置，雷达装置和配备雷达装置的车辆及配备有该装置的小型船
- Patent Title: High-frequency oscillator, high-frequency transmission-reception apparatus using the same, radar apparatus, and radar-apparatus-equipped vehicle and small boat equipped with the same
- Patent Title (中): 高频振荡器，使用该高频振荡器的高频发送接收装置，雷达装置和配备雷达装置的车辆及配备有该装置的小型船
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Application No.: US11169222Application Date: 2005-06-28
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Publication No.: US07265711B2Publication Date: 2007-09-04
- Inventor: Kazuki Hayata , Yuji Kishida
- Applicant: Kazuki Hayata , Yuji Kishida
- Applicant Address: JP Kyoto
- Assignee: Kyocera Corporation
- Current Assignee: Kyocera Corporation
- Current Assignee Address: JP Kyoto
- Agency: Hogan & Hartson LLP
- Priority: JPP2004-191732 20040629
- Main IPC: G01S7/28
- IPC: G01S7/28
Abstract:
A high-frequency oscillator that can tune oscillation characteristics is provided. A high-frequency oscillator includes a Gunn diode serving as a high-frequency oscillation element that generates high-frequency signals, a resonator connected to the Gunn diode, a varactor diode serving as a variable-capacitance element that is disposed on the resonator and changes a resonance frequency, and a bias supply circuit that is connected to the varactor diode and supplies a bias voltage applied in order to change a capacitance. The bias supply circuit includes a trimmable chip resistor serving as a pre-set variable resistor that regulates a bias voltage applied to the varactor diode. By regulating the resistance value of the trimmable chip resistor, it is possible to control the capacitance value of the varactor diode and tune oscillation characteristics to a desired state.
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