一个6到11ghz的全光图像抑制微波下变频器

International Topical Meeting on Microwave Photonics MWP 2000 (Cat. No.00EX430) Pub Date : 2000-09-11 DOI:10.1109/MWP.2000.889790

S. Strutz, K. Williams

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引用次数: 6

摘要

提出了一种能够将6- 11ghz射频信号下变频到2 - 3ghz中频频段的全光抗像下变频器。系统接收到的射频信号用于产生新的光波长。这些新的波长经过滤波，并通过外差检测将射频信号下变频到中频波段。在其带宽范围内，系统的图像抑制性能优于20 dB，杂散信号比下变频信号功率低40 dB以上。

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A 6 to 11 GHz all-optical image rejection microwave downconverter

An all-optical image-rejection downconverter capable of downconverting 6-11 GHz RF signals into an IF band from 2 to 3 GHz is presented. RF signals received by the system are used to generate new optical wavelengths. These new wavelengths are filtered and used to downconvert the RF signals into the IF band through heterodyne detection. The system exhibited better than 20 dB of image rejection over its bandwidth and the spurious signals were more than 40 dB below the downconverted signal power.

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International Topical Meeting on Microwave Photonics MWP 2000 (Cat. No.00EX430)

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