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A DLL and ILCM combination generates phase-shifted mm-Wave mixer LO signals, addressing signal loss and power consumption issues in RF radios, particularly in mm-Wave transceivers, by suppressing harmonics and optimizing power usage.
Patent Information
- Application Number
- KR1020227002957
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-08-26
- Filing Date
- 2020-06-01
- Publication Date
- 2026-08-03
- Estimated Expiration
- 2040-06-01
AI Technical Summary
Modern RF radios face challenges such as signal loss, excessive power consumption, and the use of expensive and lossy cables and connectors due to complex designs for generating, distributing, and processing high-frequency signals, particularly in mm-Wave transceivers requiring orthogonal multi-phase LO signals.
A combination of a low-frequency delay-locked-loop (DLL) and an injection-locked clock multiplier (ILCM) is used to generate phase-shifted mm-Wave mixer LO signals, suppressing unwanted harmonics and reducing power consumption by performing PLL and LO distribution at RF frequencies.
This approach saves power, suppresses unwanted harmonics, and generates cleaner frequency spectra, making it suitable for handheld and mobile applications by eliminating the need for additional buffering and reducing design complexity.