Details

Autor(en) / Beteiligte

• Chen, Baichuan
• Pokharel, Ramesh K.
• Thapa, Samundra K.
• Jahan, Nusrat
• Barakat, Adel

Titel

Design of 50-GHz Low Phase Noise VCO Employing Two-Branches DGS Resonator in 0.18-μm CMOS Technology

Ist Teil von

• IEEE microwave and wireless components letters, 2022-10, Vol.32 (10), p.1203-1206

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2022

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE Xplore Digital Library

Beschreibungen/Notizen

• This letter presents a <inline-formula> <tex-math notation="LaTeX">V </tex-math></inline-formula>-band low phase noise voltage-controlled oscillator (VCO) design using a novel integrated two-branches defected ground structure (DGS) resonator in 0.18-<inline-formula> <tex-math notation="LaTeX">\mu \text{m} </tex-math></inline-formula> complementary metal-oxide-semiconductor (CMOS) technology. The proposed DGS resonator is realized in the top metal layer (M6) which has not only a higher quality factor than its predecessors but is also effective to reduce the length of interconnects. The measured carrier frequency and phase noise are 49 GHz and −122.05 dBc/Hz (−102.58 dBc/Hz) at 10-MHz (1-MHz) offset frequencies, respectively. The VCO core consumes 5.5 mW of dc power from the dc supply, which results in a figure of merit (FoM) of −189 dBc/Hz. The proposed VCO using the two-branches DGS resonator may give an alternative low-cost solution for designing a high-performance VCO or frequency synthesizer at <inline-formula> <tex-math notation="LaTeX">V </tex-math></inline-formula>-band and beyond.