Microwave Dielectric Cavity Testing (1 GHz to 40 GHz)
Technical Specifications & Test Capabilities
| Parameter / Metric | Specification Range & Accuracy | Operational Notes |
|---|---|---|
| Testing Frequency | 2 GHz to 19 GHz | Dependent on specimen geometry and permittivity |
| Relative Permittivity Range | εr ≥ 1.5 (Accuracy: |Δεr| ≤ 0.2% εr) | Electromagnetic finite element modal analysis |
| Dielectric Loss Range | tan δ ≤ 10⁻² (Accuracy: |Δtanδ| ≤ 2% tanδ + 1.5×10⁻⁶) | Resolves loss tangents down to 10⁻⁵ |
| Derived Figures of Merit | Unloaded Q0, Qf factor (GHz), Resonance frequency f0 | Essential for 5G/6G RF substrate screening |
Specimen Geometry & Preparation Guide
| Material Form | Recommended Dimensions | Dimensional Limits | Electrode & Poling Notes |
|---|---|---|---|
| Precision Cylindrical Rod | Diameter D ≈ 10 mm, Height H ≈ 5 mm | D = 6–15 mm, H = 3–7 mm (Tolerance ≤ 0.2%) | Parallel polished planar ends, cylindrical symmetry without chips |
Testing Function
The TE01δ closed cylindrical metallic cavity resonator method (Hakki-Coleman configuration) represents the international gold standard for measuring the microwave permittivity and dielectric loss of low-loss RF ceramics and microwave dielectric substrates. Coupled to a Keysight E5071C vector network analyzer with rigorous electromagnetic finite-element analysis, our laboratory captures resonant peak f0 and unloaded quality factor Q0 to extract true εr, tan δ, and the signature Qf quality factor.
Testing Conditions
Primary Instruments: Keysight E5071C Network Analyzer, TE01δ Hakki-Coleman Closed Cavity
Standard Turnaround: Within 5 working days
Key Standards: IEC 61338-1-3 Waveguide Type Dielectric Resonators - Measurement of Dielectric Properties; IPC-TM-650 Test Methods for Stripline and Resonant Cavity High-Frequency Permittivity
Sample Requirements
Please review the detailed specimen dimensions, electrode requirements, and poling conditions in the table above. Custom dimensions and special sample geometry can be accommodated upon technical consultation.
Testing Standards
- IEC 61338-1-3 Waveguide Type Dielectric Resonators - Measurement of Dielectric Properties
- IPC-TM-650 Test Methods for Stripline and Resonant Cavity High-Frequency Permittivity
Test Results
Clients receive comprehensive test reports with raw exported ASCII/txt data files, high-resolution curve plots (temperature spectra, impedance plots, or hysteresis loops), and experimental condition parameters stamped by our CMA accredited testing center.
Turnkey Equipment for Your Own Laboratory
Prefer in-house characterization? Every test in our laboratory is performed using MatMeas turnkey instruments. Verify measurement quality with sample testing before capital procurement.
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