一、前言为了抑制内外干扰,提高无线电引信的可靠性,不管什么样的讯统处理电路,几乎都毫无例外地采用了频率选择电路。频率选择电路的型式愈来愈多,结构愈来愈繁,当然选频特性也愈来愈好。本文介绍一种特殊的频率选择电路。从集成电路的观点出发,它的元件数目也并不太 I. Preface In order to restrain internal and external interference and improve the reliability of the radio fuze, almost no exception to the frequency selection circuit, no matter what kind of system processing circuit. The type of frequency selection circuit is more and more, the structure is more and more complicated, of course, the frequency selection characteristics are getting better and better. This article describes a special frequency selection circuit. From the point of view of integrated circuits, its number of components is not too small