A 7.15-to-7.95GHz Magnetically Enhanced Feedforward Waveform-Shaping CMOS Oscillator with Implicit Common-Mode Noise Cancellation Achieving −146.72 dBc/Hz PN@1MHz and 190.6dBc/Hz FoM
Abstract
Pure microwave sources are vital for precision instrumentation, but conventional schemes are bulky and costly. CMOS oscillators are inexpensive and compact yet limited by phase-noise performance. To address this, we present a magnetically enhanced, feedforward waveform-shaping oscillator with an implicit common-mode noise-cancellation technique. Measurements show$-146.72 \text{dBc} / \text{Hz} \text{PN}$at a 1 MHz offset and a$190.6 \text{dBc} / \text{Hz} \text{FoM}$at a 7.5 GHz carrier.
Fields of Study & Subjects
Radio Frequency Integrated Circuit Design
Advancements in PLL and VCO Technologies
Analog and Mixed-Signal Circuit Design
Publication details
- Journal / source
- Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference
- Pages
- 220–222
- Publication date
- 15 February 2026
- Language
- EN