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文中设计并实现了一种S/X/Ka三频馈源,该馈源采用五喇叭组合馈源结构,中间为X/Ka双频段波纹喇叭,S频段馈源是分布在X/Ka双频段馈源外围的四喇叭。测试结果表明,所设计的三频馈源在整个工作频段内具有高增益、高极化鉴别率等特性。满足S/X/Ka遥感卫星地面接收系统的技术需求。
In this paper, a S / X / Ka tri-band feed is designed and implemented. The feed consists of five-horn combination feed structure with X / Ka dual band corrugated horn in the middle. The S-band feed is distributed in X / Ka dual band Four speakers on the periphery of the feed. The test results show that the designed tri-band feed has the characteristics of high gain and high polarization discrimination throughout the operating band. Satisfy the technical requirements of S / X / Ka remote sensing satellite ground receiving system.