IEC 62810:2015

Name: IEC 62810:2015 — Cylindrical cavity method to measure the complex permittivity of low-loss dielectric rods
SKU: IEC 62810:2015
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Cylindrical cavity method to measure the complex permittivity of low-loss dielectric rods

Название (английский):

IEC 62810:2015

Cylindrical cavity method to measure the complex permittivity of low-loss dielectric rods

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 19
Дата публикации:: 17 февраля 2015 г.
Издание:: IEC IS 62810 edition 1 version 1
ICS:: 33.120.30

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Описание (английский):

IEC 62810:2015 relates to a measurement method for complex permittivity of a dielectric rod at microwave frequency. This method has been developed to evaluate the dielectric properties of low-loss materials in coaxial cables and electronic devices used in microwave systems. It uses the TM010 mode in a circular cylindrical cavity and presents accurate measurement results of a dielectric rod sample, where the effect of sample insertion holes is taken into account accurately on the basis of the rigorous electromagnetic analysis.

Abstract

Похожие стандарты

Другие стандарты IEC

Overview - IEC 62810:2015 (cylindrical cavity method, complex permittivity)

IEC 62810:2015 specifies a microwave measurement method - the cylindrical cavity method - for determining the complex permittivity (ε = ε' − jε") of low‑loss dielectric rods. The method uses the TM010 resonant mode in a circular cylindrical cavity and derives ε' (real permittivity) and loss tangent (tan δ) from measured resonance frequency shifts and unloaded Q‑factors. The standard includes rigorous electromagnetic corrections for sample insertion holes based on numerical analysis (Ritz–Galerkin), and provides correction charts and tables for accurate, non‑destructive measurement.

Key topics and technical requirements

Measurement principle: monitor resonant frequency and unloaded Q of a cylindrical cavity in TM010 mode with and without the dielectric rod inserted; use perturbation formulas for initial estimates, then apply numerical correction factors (C1, C2) from the standard.

Accuracy targets: ≈1.0% for ε' and ≈20% for tan δ (as given in the standard).

Applicable ranges:

Frequency: ~1 GHz to 10 GHz
Relative permittivity (ε'): 1 to 100
Loss tangent (tan δ): typically low‑loss range (document range formatted in the standard)

Geometry & corrections: correction factors tabulated for typical cavity dimensions (example: D = 76.5 mm, H = 20.0 mm, sample hole d = 3.0 mm, hole depth g = 10.0 mm) and scalable by aspect ratios H/D, d/D, g/D.

Numerical methods: use of Ritz–Galerkin electromagnetic analysis to account for effects of insertion holes and to generate correction charts.

Measurement procedure: prepare apparatus, measure reference cavity parameters, measure cavity with sample (resonant frequency f and Q), compute perturbation estimates, then apply correction factors to obtain final ε' and tan δ.

Practical applications

Material characterization for coaxial cable dielectrics, microwave substrates, and polymer or ceramic rods used in RF/microwave components.

Quality control and R&D in materials science and electronics manufacturing where dielectric loss and permittivity affect microwave performance.

Supporting electromagnetic simulation validation and component design (e.g., matching networks, filters, connectors) by providing accurate material property data.

Related standards

IEC 60556 (conventional dielectric measurement methods referenced in IEC 62810)

General microwave dielectric measurement and metrology guidance from national/international test-method documents

Keywords: IEC 62810:2015, cylindrical cavity method, complex permittivity, low‑loss dielectric rods, TM010 mode, microwave measurement, loss tangent, dielectric characterization.

IEC 62810:2015

Abstract

Похожие стандарты

Overview - IEC 62810:2015 (cylindrical cavity method, complex permittivity)

Key topics and technical requirements

Practical applications

Who should use this standard

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