0.18μm CMOS技术中采用双分支DGS谐振腔的50GHz低相位噪声VCO的设计

IF 2.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Microwave and Wireless Components Letters Pub Date : 2022-10-01 DOI:10.1109/LMWC.2022.3171405

Baichuan Chen, R. Pokharel, Samundra K. Thapa, Nusrat Jahan, A. Barakat

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引用次数: 0

摘要

这封信介绍了一种$V$波段低相位噪声压控振荡器（VCO）的设计，该振荡器使用0.18-$\mu\text{m}$互补金属氧化物半导体（CMOS）技术中的新型集成双分支缺陷接地结构（DGS）谐振器。所提出的DGS谐振器在顶部金属层（M6）中实现，其不仅具有比其前任更高的品质因数，而且还有效地减少了互连的长度。在10 MHz（1-MHz）偏移频率下，测得的载波频率和相位噪声分别为49 GHz和−122.05 dBc/Hz（−102.58 dBc/Hz）。VCO核心消耗来自直流电源的5.5 mW直流功率，从而产生−189 dBc/Hz的品质因数（FoM）。所提出的使用两个分支DGS谐振器的VCO可以为设计$V$-频带及以上的高性能VCO或频率合成器提供另一种低成本的解决方案。

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

This letter presents a

$V$

-band low phase noise voltage-controlled oscillator (VCO) design using a novel integrated two-branches defected ground structure (DGS) resonator in 0.18-

$\mu \text{m}$

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

$V$

-band and beyond.

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来源期刊

IEEE Microwave and Wireless Components Letters 工程技术-工程：电子与电气

自引率

13.30%

发文量

376

审稿时长

3.0 months

期刊介绍： The IEEE Microwave and Wireless Components Letters (MWCL) publishes four-page papers (3 pages of text + up to 1 page of references) that focus on microwave theory, techniques and applications as they relate to components, devices, circuits, biological effects, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals. This includes scientific, technical, medical and industrial activities. Microwave theory and techniques relates to electromagnetic waves in the frequency range of a few MHz and a THz; other spectral regions and wave types are included within the scope of the MWCL whenever basic microwave theory and techniques can yield useful results. Generally, this occurs in the theory of wave propagation in structures with dimensions comparable to a wavelength, and in the related techniques for analysis and design.