MILLIMETER-WAVE RADAR DEVICE

To provide a millimeter-wave radar device in which the oscillation frequency of a DC/DC converter can be set to a desired frequency, so that the design freedom of the DC/DC converter is improved.SOLUTION: In a millimeter-wave radar device, a common mode choke coil 5 is provided between a DC/DC conve...

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Hauptverfasser:	IMANISHI YOSHIHIRO, ENOKI NAOMICHI, ICHIMURA TAKASHI, KITADA HIROSHI, TAKATSUJI HIROYUKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRICITY GENERATION IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS INDUCTANCES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MAGNETS MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION RESONATORS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TESTING TRANSFORMERS
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Beschreibung
Zusammenfassung:	To provide a millimeter-wave radar device in which the oscillation frequency of a DC/DC converter can be set to a desired frequency, so that the design freedom of the DC/DC converter is improved.SOLUTION: In a millimeter-wave radar device, a common mode choke coil 5 is provided between a DC/DC converter 3 and a radar unit 2. The common mode choke coil 5 includes a first coil 5a connected to a ground line and a second coil 5b connected to a power supply line. The ground line connects between first ground G1 which is a reference potential of the DC/DC converter 3, and second ground G2 which is a reference potential of the radar unit 2 and is electrically separated from the first ground G1. The power supply line connects between a voltage output end of the DC/DC converter 3 and the voltage input end of the radar unit 2. A pair of capacitors 6a and 6b with the same capacitance value are connected in parallel to the first coil 5a and the second coil 5b, respectively.SELECTED DRAWING: Figure 1 【課題】ＤＣ／ＤＣコンバータの発振周波数を所望の周波数に設定できて、ＤＣ／ＤＣコンバータの設計の自由度が向上するミリ波レーダ装置を提供する。【解決手段】ＤＣ／ＤＣコンバータ３とレーダユニット２との間には、コモンモードチョークコイル５が設けられる。コモンモードチョークコイル５は、グランドラインに接続される第１コイル５ａと、電源ラインに接続される第２コイル５ｂを有する。グランドラインは、ＤＣ／ＤＣコンバータ３の基準電位となる第１グランドＧ１と、レーダユニット２の基準電位となり、第１グランドＧ１と電気的に分離される第２グランドＧ２との間を結ぶ。電源ラインは、ＤＣ／ＤＣコンバータ３の電圧出力端とレーダユニット２の電圧入力端との間を結ぶ。第１コイル５ａおよび第２コイル５ｂには、それぞれ並列に同じ容量値を持つ一対のコンデンサ６ａおよび６ｂが接続される。【選択図】図１