A 30MHz-50GHz broadband frequency conversion assembly

CN224401489UActive Publication Date: 2026-06-23JIANGSU SHENGJIA MICROELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU SHENGJIA MICROELECTRONICS TECH CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional wideband frequency converter designs suffer from severe signal power attenuation, poor spurious suppression, high hardware redundancy, high cost, and complex system integration, making them unable to meet the requirements of high-precision testing.

Method used

The design employs a multi-stage low-gain amplifier combined with programmable adjustment and a multi-band filter. A single-pole six-switch splits the wideband signal into multiple sub-bands, and a dual mixer generates the target intermediate frequency signal. An adjustable local oscillator frequency is used to cover the wideband, and a limiter is used to protect the back-end devices.

Benefits of technology

It improves signal quality stability and purity, reduces equipment complexity and cost, and meets the needs of high-precision testing and communication systems in multiple fields.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a 30MHz~50GHz broadband frequency conversion assembly in the microwave field, including 0.03~450MHz output channel and 720MHz output channel, 0.03~450MHz output channel is 0.03~450MHz filter, first amplifier, first program control, second amplifier, second program control, third amplifier, third program control, 0.03~450MHz filter is in proper order series connection and constitutes, and 720MHz output channel is 0.3~3.25 filter, fourth amplifier, fourth program control, fifth amplifier, filter switch group, first frequency mixer, 5Hz filter, sixth amplifier, 5Hz filter, second frequency mixer, 720MHz filter, seventh amplifier, fifth program control, 720MHz filter series connection constitutes. The utility model discloses through two -channel division of labour and grading frequency conversion, and the wide frequency coverage is high and the purity is high, and the gain control is accurate simultaneously, and is suitable for multi -scene application.
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