| 1. | Image rejection for bluetooth receiver 蓝牙接收机中镜像信号的抑制 |
| 2. | Image rejection ratio 镜频抑制比 |
| 3. | At first , the design and implementation of mmw hybrid integrated sub - harmonic image rejection mixer is presented in this paper 本文首先介绍了一种毫米波段具有镜频抑制功能的四次谐波混频器的设计与实现。 |
| 4. | The results showed conversion loss less than 11 . 2db and image rejection ratio more than 20db over 4ghz rf bandwidth , when if is 70 mhz fixed 通过测试,当中频固定在70mhz ,在射频大于4ghz带宽内,变频损耗小于11 . 2db ,镜频抑制度大于20db 。 |
| 5. | The amplitude and phase balance of the unit mixer is controlled strictly through designing . wideband image rejection is realized in the condition of the fixed if 通过设计控制单元混频器幅度和相位平衡,在固定低中频下,实现了宽带镜频抑制。 |
| 6. | 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。 |
| 7. | 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。 |
| 8. | Theoretically deep analysis is made concerning microwave multistage frequency conversion , the synchronous improvement in image rejection , high dynamics and ultrawidth are also discussed 同时微波单片集成电路和混合集成器件、集成天线与子系统的研制与开发,对宽带微波测量系统提出了挑战。 |
| 9. | The commonly used passive mixer is also discussed and a single balanced mixer is designed . then the theory of image rejection mixer and factors that affect its performance are presented 对混频器的讨论,先是设计出了一个性能理想的单平衡混频器,随后阐述了镜像抑制混频器的原理和影响其性能的因素。 |
| 10. | For the application of direct broadcast satellite ( dbs ) , a ku - band high image rejection broadband mixer is designed using ads . it appears predominant performances when compared with common single balanced mixer 针对卫星电视直播接收系统,用ads设计了一个宽频带、高镜像抑制度、低噪声的ku波段镜像抑制混频器,并同普通平衡混频器进行了对比分析,显示了其优越的性能。 |