A wideband phase-shifting attenuator

By employing a multi-band heterogeneous integrated architecture and real-time phase compensation technology, the performance instability of traditional phase-shifting attenuators in the ultra-wide bandwidth has been solved, achieving stable performance and precise power control from 0.1 to 26.5 GHz, making it suitable for multiple RF application scenarios.

CN224555589UActive Publication Date: 2026-07-24CHENGDU HAOQI TECH CO LTD
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Patent Information

Application Number
CN202521863941.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-07-24
Estimated Expiration
2035-08-29

AI Technical Summary

Technical Problem

Traditional phase-shift attenuators struggle to maintain stable performance within the ultra-wide bandwidth of 0.1-26.5GHz, exhibiting phase-amplitude coupling effects, a trade-off between step accuracy and bandwidth, and high-frequency loss and matching challenges, all of which negatively impact system noise performance.

Method used

A multi-band heterogeneous integrated architecture is adopted, combining analog phase shifting and digitally controlled attenuation technology. A wideband phase shifting attenuation device is constructed through segmented design and real-time phase compensation. Temperature drift and time drift calibration are achieved using FPGA and high-performance memory.

Benefits of technology

It achieves stable performance from 0.1 to 26.5 GHz, covering multiple RF application scenarios, reducing phase-amplitude coupling effects, resolving the contradiction between step accuracy and bandwidth, reducing high-frequency loss, and providing end-to-end precise power control.

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Abstract

The utility model relates to the field of radio frequency microwave technology, specifically disclose a kind of wideband phase shift attenuation device, including main circuit, control module;The control module is connected temperature module, memory respectively;The control module is connected with the main circuit by connecting circuit;The utility model has ultra-wideband performance, first " nine frequency bands Heterogeneous Integration " architecture, nine sub-frequency bands are respectively optimized design, single module can cover from low frequency to millimeter wave front most radio frequency application scene, without for different frequency band design different phase shift circuit, greatly simplifies system design;Reduce phase-amplitude coupling effect, avoid that output amplitude can appear larger change with the phase change of phase shifter;Solve the contradiction between step precision and bandwidth.
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