Digitally-Controlled Bondwire Inductor with High Quality Factor and Wide Tuning Range

Lee, Yonggoo; Lee, Bomson

doi:10.26866/jees.2020.20.3.207

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…At mm wave frequencies, an extremely small inductances in the range of 50 pH to 300 pH are required. Tey are realized by on-chip planar inductors with desired features such as low loss, high Q-factor, wide bandwidth, low power, and linear tuning range [12]. Unfortunately, they are designed on a conductive silicon substrate in which some quantity of RF signals is radiated out.…”

Section: Octagonal Spiral Inductormentioning

confidence: 99%

Low Noise Amplifier at 60 GHz Using Low Loss On-Chip Inductors

Balamurugan,

Nirmala Devi,

Jayakumar

2023

Journal of Electrical and Computer Engineering

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This paper proposes the technique of using low loss on-chip inductors in the design of low noise amplifier (LNA) that offers high gain and lower noise figure. Upon the substrate of octagonal spiral inductors, a surface of patterned ground shield is inserted that significantly reduces the substrate loss. This effect limits the penetration of electric filed into the substrate, thereby improving the inductor’s Quality (Q) factor and decouples the substrate parasitic that results with smaller series resistance. These effects result with improved gain and noise figure of LNA at 60 GHz when the designed inductors are included in it to serve as gate, source, and load inductances. The proposed work uses an inductively degenerated 3-stage common-source LNA in a 65-nm CMOS process. Simulation results show that the LNA using custom designed inductors achieves the peak gain of 17.02 dB at 56 GHz with a noise figure of 5 dB at 60 GHz for the power consumption of 10 mW. The figure-of-merit (FOM) is 14.56 which is 0.8 times more than the LNA design using off-chip inductors. A complete LNA layout using custom designed inductor footprints has been presented and analyzed.

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Section: Octagonal Spiral Inductormentioning

confidence: 99%

Low Noise Amplifier at 60 GHz Using Low Loss On-Chip Inductors

Balamurugan,

Nirmala Devi,

Jayakumar

2023

Journal of Electrical and Computer Engineering

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“…Conventionally, a reconfigurable spiral inductor can be achieved by using microelectromechanical systems technology 15 , 16 or printed circuit board processing where the spiral shape is obtained by connecting multilayers with vias. In addition, reconfigurability is achieved by selecting the number of turns 17 , 18 . Nevertheless, these conventional techniques are complex and costly.…”

Section: Introductionmentioning

confidence: 99%

Thermal spiral inductor using 3D printed shape memory kirigami

Kim

Phon

Jeong

et al. 2022

Sci Rep

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Spiral inductors are required to realise high inductance in radio frequency (RF) circuits. Although their fabrication by using micro-electrical–mechanical systems, thin films, actuators, etc., has received considerable research attention, current approaches are both complex and expensive. In this study, we designed and fabricated a thermal spiral inductor by using a three-dimensional (3D) printed shape-memory polymer (SMP). The proposed inductor was inspired by kirigami geometry whereby a two-dimensional (2D) planar geometric shape could be transformed into a 3D spiral one to change the inductance by heating and manually transform. Mechanical and electromagnetic analyses of the spiral inductor design was conducted. Hence, in contrast with the current processes used to manufacture spiral inductors, ours can be realised via a single facile fabrication step.

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Digitally-Controlled Bondwire Inductor with High Quality Factor and Wide Tuning Range

Cited by 2 publications

References 23 publications

Low Noise Amplifier at 60 GHz Using Low Loss On-Chip Inductors

Low Noise Amplifier at 60 GHz Using Low Loss On-Chip Inductors

Thermal spiral inductor using 3D printed shape memory kirigami

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