TXEMM | MATERIALS · TESTING

Microwave Property Testing

RF & Microwave Electromagnetic Characterization

Complex permeability (μ′, μ″), complex permittivity (ε′, ε″), and S-parameter characterization for RF, microwave, EMI and advanced materials.

What We Measure

Electromagnetic properties and signal response across RF and microwave frequencies.

Complex Permeability

μ′, μ″, magnetic loss

Complex Permittivity

ε′, ε″, dielectric loss

S-Parameters

S11, S21, reflection and transmission

Microwave Response

Frequency-dependent absorption and loss

Microwave Test Facility Selection Guide

Microwave Testing Methods

Select the appropriate fixture based on sample geometry and measurement frequency.

Stripline Resonant Cavity (SLC)

Resonant-frequency characterization
Complex μ* and ε* (0.5–12 GHz)
Specimen: plate, thickness < 3 mm
High accuracy at fixed resonances
DC magnetic bias (optional)

Coaxial Transmission Line(CTLF)

Broadband μ* and ε* extraction
Frequency range: 0.5–18 GHz
Specimen: ring (ID = 3 mm, OD = 7 mm)
High accuracy (typically < 2%)
Easy extraction of μ* and ε*

Coplanar Waveguide (CPW)

S-parameters: 0.5–14 GHz
Absorption, reflection, transmission
Complex μ* and ε*
Specimen: thin film, thickness < 10 μm
DC magnetic bias: 0–1000 Oe
Excellent for FMR studies

Rectangular Waveguide (RWG)

S-parameter spectra in bands:
1. S band: 2.60–3.95 GHz
2. G band: 3.95–5.85 GHz
3. C band: 5.85–8.20 GHz
4. X band: 8.20–12.4 GHz
Specimen: rectangular plate
High accuracy (μ′, ε′ < 2%, loss < 5%)

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