RF Measurement Service
AET, Inc. offers you the measurement services for RF/microwave devices and circuits, taking advantage of our experience and expertise in electromagnetic fields.
- Mixed-mode differential s-parameter characterization using 4-port vector network analyzer
- S-parameter measurement using vector network analyzer ( < 50GHz)
- Creation and measurement of TEG using coplanar probe
- Measurement using spectrum analyzer (23GHz)
- Calculation of inductance and capacitance using s-parameter
- Creation of calibration modules and test fixtures based on LM/LRM methods
Impedance Measurement Example
The Probe Station System equipped with the Air Coplanar Probe provides the impedance measurement of a microstrip line.
Sample
- Microstrip line, length: 30 mm
- FR-4 substrate, thickness: 0.2 mm
- Measurement frequency: 300 MHz
Tools used in this measurement:
- Measurement equipment: Probe Station AGPS501 (AET)
- Calibration: Calibration Kit
- Measurement probe: Air Coplanar GSG (Cascade Microtech)
- Impedance analyzer: E4991A (Keysight Technologies)
Probe Station (AET)
Probe (Cascade Microtech)
Inductance Calculation Example
( Example 1 )
Measurement example: Zo=R+jX(Ω)
At 300 MHz, Zo ＝ 0.223+j18.2899(Ω) Z(im)=jωL
Inductance L=18.2899÷(2π×300e+6) =9.71nH
Measurement example: Zo=R+jX(Ω)
At 300 MHz, Zo ＝ 0.223+j18.2899(Ω) Z(im)=jωL
Inductance L=18.2899÷(2π×300e+6) =9.71nH
( Example 2 )
Measurement example: Zo = G ＋ jX(Ω)
At 300 MHz, Zo ≒ 0.00021-j150(Ω), Z(im)=1⁄jωC
Capacitance C = 1 ÷ (150 × 2π × 300e+6) = 3.53 pF
Measurement example: Zo = G ＋ jX(Ω)
At 300 MHz, Zo ≒ 0.00021-j150(Ω), Z(im)=1⁄jωC
Capacitance C = 1 ÷ (150 × 2π × 300e+6) = 3.53 pF
Applications
- Spiral inductor impedance measurement
- PCB internal capacitor thin film dielectric
- RFID Antenna
- IC package, memory stray capacitance measurement
- Disc, magnetic head
System Construction
In addition to sample measurements, we offer the service of designing an impedance measurement system.
System Configuration
- Probe Station AGPS501 (AET, Inc.)
- Impedance Analyzer (Keysight Technologies, Inc.)
- Measurement Probes (Cascade MicroTech, Inc.)
- Calibration Kit (AET, Inc., or Cascade MicroTech, Inc.)
AET, Inc. is a Solution Partner in Japan of Keysight Technologies, Inc.We offer impedance analyzers and other measuring equipment at modest prices.