镜频抑制混频器 meaning in English

image frequency rejection mixer

Image frequency rejection mixer
镜频抑制混频器
The sub - harmonic mixer is used as unit mixer to reduce lo to its 1 / 4
此镜频抑制混频器采用谐波混频器作为单元混频器,将本振频率降低为基频的1 / 4 。
The image rejection mixer is composed of two unit mixers , rf is halved as two parts in quadrature ; lo is halved as two parts in phase ; if is synthesized in quadrature
镜频抑制混频器包含两个单元混频器,射频正交功分,本振同相功分,中频正交合成。
Having the property of good image rejection in broadband and low intermediate frequency ( if ) cases , the image - rejected mixers ( irm ) have been widely used in various mmw receivers
而镜频抑制混频器能够在宽带、低中频的情况下实现良好的镜频抑制。
By using irm , heterodyne receiver with good image rejection and mmw - to - if once frequency conversion can be realized , which simplified receiver constitution prominently . the number of local oscillation ( lo ) sources is reduces and electromagnetic compatibility ( emc ) of mmw system is improved . also , the size , weight , power consume and cost of mmw receiver is reduced
采用毫米波镜频抑制混频器,可在保证镜频抑制性能的前提下,采用1次变频接收机,从而大大简化接收构成,减少本振数量,改善毫米波系统电磁兼容性,减小接收机体积、重量、功耗,并降低成本。