发明名称 DUAL-BAND SPIRAL ANTENNA
摘要 antenna engineering. SUBSTANCE: antenna has two monobander sections each incorporating excitation circuit, grounded layer disposed in opposition to excitation circuit, and group of one or more radiators extending from excitation circuit. One novelty of invention is that contact is extended from excitation circuit of one of monobanders and ensures excitation of the latter. Contact also provides for passing current from radiators of second monobander along its axis so as to increase energy radiated in directions perpendicular to this axis. Another novelty of invention is that grounded layer of one of monobanders is used as short-circuiting ring for other monobander. EFFECT: provision for operation in two frequency bands. 25 cl, 23 dwg
申请公布号 RU2192077(C2) 申请公布日期 2002.10.27
申请号 RU19990122595 申请日期 1998.03.25
申请人 KVEHLKOMM INKORPOREJTED 发明人 FILIPOVIK DEHNIEL;TASSOUDZHI ALI;TIDVELL STEFEN B.
分类号 H01Q1/38;H01Q1/36;H01Q5/00;H01Q11/08;H01Q21/28;(IPC1-7):H01Q11/08 主分类号 H01Q1/38
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