RF Spiral Planar Inductor Designs Preliminary Results

planar spiral inductor, namely the current sheet inductance approximation, Lgmd, the modified wheeler, Lmwhe and monomial data fit inductance expression, Lmon. S.Jenei et al.[9 ...

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Planar Spiral Micro-Inductor Based on Graphene/Cu Composite …

In this paper, we present a planar spiral micro-inductor based on a graphene/Cu composite film conductive coil fabricated using microelectromechanical systems (MEMS) …

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A new calculation for designing multilayer planar spiral inductors …

The two-layer planar spiral inductor''s Q and self-resonant frequency are better than that of a chip inductor with the same value. Figure 8 shows a fifth-order lowpass filter with two-layer coupled planar spiral inductors using the new calculation for the design of this filter. The performance of the filter matches the simulation result and ...

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Physical Modeling of Spiral Inductors on Silicon

Abstract— This paper presents a physical model for planar spiral inductors on silicon, which accounts for eddy current effect in the conductor, crossover capacitance between the spiral …

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Air-Core Planar Inductors and Transformers on PCB

94 7 Air-Core Planar Inductors and Transformers on PCB conductor x conductor y lx ly l 1 l 2 l θ (a) (b) Fig. 7.3 Two major types of mutual inductance in windings. a Two parallel conductors. b Two connected conductors with a certain angle θ with a different length l x and l y can be calculated as (7.5) shows, which is affected by the corresponding conductor length and the …

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Layout optimization of planar inductors for high-efficiency

Keywords Integrated inductor Spiral inductor Air-core inductor Inductance time constant Layout synthesis DC–DC converter Boost converter Buck converter 1 Introduction The growing demand for wireless sensors, wearable elec-tronics and Internet-of-things devices drives the develop-ment of hardware components that are smaller, lighter,

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Simplified Mutual Inductance Calculation of Planar Spiral Coil for ...

In this paper, a simplified method for the calculation of a mutual inductance of the planar spiral coil, motivated from the Archimedean spiral, is presented. This method is derived by solving Neumann''s integral formula in a cylindrical coordinate system, and a numerical tool is used to determine the value of mutual inductance. This approach can calculate the mutual …

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Design for Integrated Planar Spiral Inductor for MEMS

The main aim of this paper is to present the new design of an integrated planar spiral inductor with a new structure of an underpass to obtain a high inductance, high quality factor and minimum ...

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Simulation and design of an integrated planar inductor using ...

3 Design of planar inductor The inductance value of the spiral inductors at the HF range can be determined using the quasi-static method proposed by Greenhouse [14] with a good level of accuracy. In contrast to the helical windings of conventional magnetic devices, the windings of planar transformers and inductors are located on flat

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Fundamental Physics of Planar Inductors, Embedded Planar

The total area occupied by the two planar spiral inductors is large, since segments of the second planar spiral inductor have to be placed in between the segments of the first planar spiral inductor, and each segment (whether it belongs to the first planar spiral inductor or the second) must have sufficient space in between itself and its two nearest adjacent …

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Sunderarajan S. Mohan, Maria del Mar Hershenson, Stephen P.

Thus, planar spiral inductors have become essential elements of communication circuit blocks such as voltage controlled oscillators (VCO''s), low-noise amplifiers (LNA''s),

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Lumped Equivalent Circuit of Planar Spiral Inductor for CMOS …

11 Zhao Jixiang: Lumped Equivalent Circuit of Planar Spiral Inductor for CMOS RFIC Application Fig. 1 A square spiral inductor on Si2SiO2 substrate where w is the conductor width,s the turn separa2 tion, N the number of turns that is a multiple of 015,[N]± denotes the N to the nearest integer to2wards infinity and zero, respectively, and din / dout

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Inductance Formula for Rectangular Planar Spiral Inductors with ...

This paper derives a formula for rectangular planar spiral coils with an aspect ratio of up to 4.0 and having a cross-sec- tional aspect ratio of height to width not exceeding unity.

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USING EM PLANAR SIMULATORS FOR ESTIMATING THE Q …

suitable for calculating the Q of a spiral inductor. The technique proposed in this paper provides a fast and accurate Q calculation without the need of meshing the internal part of the conductors. …

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Thermal Modeling of a Spiral Planar Inductor

2 Thermal Modeling of a Spiral Planar Inductor Melati Rabia1*, Hamid Azzedine1, Adda Benattia Tekkouk2. Abstract — In the literature, it is common practice to use well-known and particularly ...

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Spiral Inductor

This example shows you how to create, visualize, and analyze a spiral inductor. Create a spiral inductor with default properties. inductor = spiralInductor. inductor = spiralInductor with properties: SpiralShape: ''Square'' InnerDiameter: 5.0000e …

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Analytical calculation of the inductance of planar zig-zag spiral inductors

The inductance of a planar zig-zag spiral inductor can thus be obtained for any width, length and angle of the saw-tooth configuration. The procedure is validated with experimental measurements ...

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Efficient inductance calculation for planar spiral inductors and ...

A new method to efficiently calculate the self and mutual inductances of a planar spiral inductor or a multicoil transformer is presented. Three analytical formulas are firstly derived to calculate partial inductances of concentric half-turn segments, which are then summed to the device''s total inductances.

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A Fast and Precise Tool for Multi-Layer Planar Coil Self ...

An open-source tool that allows for a fast and precise analytical calculation of multi-layer planar coils self-inductance, without any geometry limitation is proposed here. The process of designing and simulating planar coils to achieve reliable results is commonly limited on accuracy and or geometry, or are too time-consuming and expensive, thus a tool to speed up …

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Planar Circular Spiral Inductors With Improved Q and Self …

The measured results show that the resonance frequency and quality factor are improved as compared with a conventional spiral planar inductor, without any increase in the inductor area. The quality factors are improved by 21.28%, 19.60%, and 17.12% for the inductors having 1.5, 2.5, and 3.5 turns, respectively. In addition, the SRF is improved ...

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A spiral planar inductor: An experimentally verified physically …

The results of a comprehensive investigation of spiral inductors are presented. A physically based model includes the self and mutual inductances, the capacitances between adjacent turns, the substrate capacitance, and the ohmic loss effects proposed. Heterogeneous simulation scheme, including circuit and device models during time and frequency domains, is successfully …

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USING EM PLANAR SIMULATORS FOR ESTIMATING THE Q OF SPIRAL INDUCTORS …

Spiral inductors can be found in every manufacturing technology used today: integrated circuits in silicon, RF and microwave integrated circuit (M MIC) technologies of various kinds, multilayer ... Figure 1 Figure 1 MMIC spiral inductor simulated with a planar EM solver. Where is the permeability and the metal conductivity. Also, for the ...

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Fundamental Physics of Planar Inductors, Embedded Planar

This chapter provides a comprehensive review of the existing information|knowledge of planar spiral inductors, embedded planar transformers, and planar …

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A physical model for planar spiral inductors on silicon

This paper presents a physical model for planar spiral inductors on silicon. The model has been confirmed with measured and published data of inductors having different geometric and …

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Inductance Calculation of Single-Layer Planar Spiral Coil

In this paper, an analytical calculation of the inductance of an air-core planar spiral coil is presented. The inner and outer radius of the planar spiral coil is determined from the general equation of the filament of the wire. Using the Neumann integral formula, the expression of inductance is obtained. The double integral of Neumann''s formula is computed numerically …

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Fabrication, simulation, and characterization of planar inductors

A planar inductor with excellent magnetic characteristics was successfully prepared by screen printing high solid content iron-based alloy magnetic pastes onto copper …

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Introduction to Passive Planar Spiral Inductors

Model Spiral Inductor. The passive spiral inductor can be realized in different structure like square, circular, hexagonal, and octagonal with multiturns. The multi-turn inductors are used for higher inductance value design. The spiral Inductor is a two port multiturn planar inductor with multiple dielectric layers.

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A physical model for planar spiral inductors on silicon

This paper presents a physical model for planar spiral inductors on silicon. The model has been confirmed with measured and published data of inductors having different geometric and process parameters. This model is scalable with inductor geometry, allowing designers to predict and optimize the quality factor.

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Overview of planar spiral inductance design and modeling

In this paper, the geometric parameters and parasitic effects of planar spiral inductance are introduced theoretically. Various physical models of helical inductance are analyzed, the general situation of various modeling methods of planar helical inductance is summarized while their advantages and disadvantages are compared. This paper is of guiding significance for the …

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Model and Analysis of Planar Spiral Inductor Based on Package Substrate

This paper presents the planar spiral inductor structure modeled by ANSYS HFSS. Meanwhile, footprint of spiral inductors is manufactured to validate the simulated results. Scattering parameters are utilized to extract L and Q to compare the simulation results with measured data. While changing the geometric parameters such as the metal width (w), spacing between traces …

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Integrated Square-Shaped Spiral Inductor

The model geometry consists of the spiral-shaped inductor and the air surrounding it. Figure. 1 below shows the inductor and air domains used in the model. The outer dimensions of the model geometry are around 0.3 mm. Figure 1: Inductor geometry and the surrounding air. The model equations are the following: L. 2. W. m. I. 2 = -----– V – J

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Planar spiral coil inductor design

Info The first approximation is based on a modification of an expression developed by Wheeler; the second is derived from electromagnetic principles by approximating the sides of the spirals as current-sheets; and the third is a monomial expression derived from fitting to a large database of inductors (and the exact inductance values). All three expressions …

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Single layer Planar spiral coil inductor calculator

Single layer Planar spiral coil inductor calculator : The first approximation is based on a modification of an expression developed by Wheeler; the second is derived from electromagnetic principles by approximating the sides of the spirals as current-sheets; and the third is a monomial expression derived from fitting to a large database of inductors (and the exact inductance values).

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Design and Modeling of Octagonal Planar Inductor and …

The π-circuit model (Fig. 4) extracted from (Fig. 3) demonstrates the electrical behavior of both the integrated planar inductor and transformer for an operating frequency of 1 GHz [1, 7, 8].The circuits contain different electrical parameters that define each layer. At high frequencies, the coil is represented by the total inductance of the line in series with the serial …

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A MEMS-based Double-layer Spiral Planar Inductor using …

inductor with a small device size of 1.5×1.5×0.15mm can been packaged easily. And the inductor has an inductance of 1.3μH and quality factor of 2.8 at 1.5MHz. 2. Inductor Design 2.1. The Structure of the Inductor Planar, rectangular spiral geometry was chosen as a well-tested technique for maximizing

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Geometry Optimization of Planar Spiral Inductors operating at 5G …

Abstract: This paper discusses a simplified methodology and optimization of geometry for designing of Planar Spiral Inductors. The existing method to calculate Inductance of a spiral …

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PLANAR INDUCTOR DESIGN FOR HIGH POWER …

dimensions, and the resonant frequency of the spiral inductor for the desired inductance value. 1. INTRODUCTION There is an increasing demand in the area of radio frequency applications to use cost efiective planar inductors. Spiral type planar inductors are widely used in the design of power ampliflers, oscillators,

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(PDF) Design and Optimization of Litz-Wire Planar Spiral Coil for ...

p>Litz wire planar spiral coils are widely used in inductive power transfer systems due to low power loss in high-frequency operation and low profile.

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