A 1.3–2.4-GHz 3.1-mW VCO Using Electro-Thermo- Mechanically Tunable Self-Assembled MEMS Inductor on HR Substrate

Bhattacharya, Anirban; Mandal, Dipak Kumar; Bhattacharyya, Tarun Kanti

doi:10.1109/tmtt.2014.2380357

Cited by 8 publications

(2 citation statements)

References 48 publications

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“…Another perspective is to change the properties of the magnetic core or the magnetic field distribution in it. Following this direction, researchers tried to control the magnetic flux by thermal actuation [73] or metal shield [74]. DC current was also widely used to modify the properties of magnetic core.…”

Section: A On-chiip Transformer Inductor With Integrated Magnetic Core and Voltage Tunable Inductor With Me Compositementioning

confidence: 99%

Integrated Magnetics and Magnetoelectrics for Sensing, Power, RF, and Microwave Electronics

Sun

2021

IEEE J. Microw.

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As the rapid development of integrated magnetic and magnetoelectric, numerous novel devices including high performance on-chip transformers, inductors, filters, antennas, and sensors with unique advantages in power efficiency, size and tunability, etc. have been demonstrated. In this review, an overview of the development of magnetism and magnetoelectric will be firstly given. The conceptual illustration and materials used in integrated magnetoelectric will then be presented. Selections of on-chip devices from literatures will be shown to exemplify the integrated magnetic and magnetoelectric applications. Finally, the prospect and the direction of the future research will be discussed in the conclusion.INDEX TERMS Magnetic, magnetoelectric, integrated devices, high frequency, sensing.This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination.

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Section: A On-chiip Transformer Inductor With Integrated Magnetic Core and Voltage Tunable Inductor With Me Compositementioning

confidence: 99%

Integrated Magnetics and Magnetoelectrics for Sensing, Power, RF, and Microwave Electronics

Sun

2021

IEEE J. Microw.

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“…Several different topologies have been investigated. Two of the most common are cross coupled VCO [5], [7] and balanced Colpitts VCO [8], [9]. A combination of these two have also been proposed, the so-called g m -boosted VCO [10]…”

Section: Introductionmentioning

confidence: 99%

A Ku-Band Low-Phase-Noise Wide-Tuning-Range VCO in SiGe BiCMOS Technology

Li¹,

Kang²,

Jia³

2016

JCM

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In this paper, design and fabrication of a Ku-band voltage-controlled oscillator (VCO) using commercially available 0.18 μm SiGe BiCMOS technology is presented. To achieve the low phase noise, the VCO employs a g m-boosted configuration which is a combination of cross coupled VCO and balanced Colpitts VCO, and the VCO simultaneously achieves wide tuning range. The tested results show that the VCO exhibits a phase noise of-116.2 dBc/Hz at a 1 MHz offset and presents a tuning range from 12.82 GHz to 14.28 GHz. The overall dc current consumption of the VCO is 2.1 mA with a supply voltage 1.8 V. The chip area of the VCO is 0.92×0.91 mm 2 .

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MEMS‐based LC tank with extended tuning range for multiband applications

Cazzorla

Farinelli²,

Urbani³

et al. 2016

Radio Science

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This paper presents the modeling, simulations, and measurements of a compact multiband microelectromechanical (MEMS)‐based LC tank resonator suitable for low phase noise voltage‐controlled oscillators (VCOs). The resonator is based on a high‐Q spiral inductor and high capacitance ratio varicap fully integrated in FBK‐irst (Fondazione Bruno Kessler) MEMS manufacturing process. The design of the varicap is based on double‐actuation mechanism with a mechanical central bond that inhibits the pull‐in allowing for a theoretically infinite tuning ratio. The measurements have shown a total not continuous capacitance ratio (Cr) of 5.2 with a continuous variation of the capacitance values in the range 225 fF–600 fF which corresponds to a continuous capacitance ratio (Cr*) of 2.6. The performance repeatability, the power‐handling capability, and the stability over time were tested on 10 samples showing a negligible variation of the capacitance values. The spiral inductor consists of a suspended gold membrane thick 5 µm in a circular shape which was modeled in order to optimize the quality factor (Q) in the frequency range 2–4 GHz. The measurement results show a Q of about 55 in the 2–4 GHz frequency band. The LC tank measurements show an overall tuning range better than of 45% in the 3.2–4.9 GHz frequency band, consisting of two continuous tuning ranges of 7.5% and 25%. The LC tank allowed the design of MEMS‐based voltage‐controlled oscillators (VCOs) with an overall tuning better than 60% in the frequency range 2.15 GHz–3.85 GHz and two separate regions of continuous tuning range. The VCO prototype will be fabricated on Surface Mount Technology on RO4350 laminate. The main figures of merit are presented in comparison with the state of the art.

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A 1.3–2.4-GHz 3.1-mW VCO Using Electro-Thermo- Mechanically Tunable Self-Assembled MEMS Inductor on HR Substrate

Cited by 8 publications

References 48 publications

Integrated Magnetics and Magnetoelectrics for Sensing, Power, RF, and Microwave Electronics

Integrated Magnetics and Magnetoelectrics for Sensing, Power, RF, and Microwave Electronics

A Ku-Band Low-Phase-Noise Wide-Tuning-Range VCO in SiGe BiCMOS Technology

MEMS‐based LC tank with extended tuning range for multiband applications

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