The equation allowing determine the measured impedance component will then have the form
The article presents two methods for the synthesis of quasi-balanced circuits for measuring the impedance components.
If product in the field experienced a high-humidity event, or drew enough moisture into a critically sensitive area of the circuit under controlled humidity conditions, and this moisture created a leakage path on a capacitor or a high impedance component
and the system fails, a technician is dispatched to repair the system.
The 4TP bridge, at balance, measures the ratio of the QHR "standard" (with its in-phase impedance component
defined between external connection stars Y and Z) and the wire-wound resistor (defined between internal connection points A and B).
A high impedance component
is used to ensure the complete RF signal passes through the device and not back through the DC bias circuit.
This essentially consists of capacitive impedance components
C, a resistive component R, and a constant phase element (CPE) indicating a distribution of electrical responses.
Based on this circuit, the various impedance components
and relevant parameters will be defined.
6, 8, and 10, the experimental and calculated values of the frequency dependences of the impedance modulus [absolute value of [[Z.bar].sub.*]([f.sub.*])] of the Fricke replacement circuit, the active [R.sub.*]([f.sub.*]) and the reactive [X.sub.*]([f.sub.*]) impedance components
However, phase is also recorded, and the real and imaginary impedance components
can be saved.
Similar interference occurs even when switching circuits with significant inductive impedance components
The assumptions made for explaining these results have been explained in previous paragraphs; however, it can be added that after certain exposure time has elapsed, the value of the impedance components
of both sample types showed a trend to be closer and stabilized.
Using such a set-up allowed for a synchronous measurement of the impedance components
for meridian and non-meridian pathways.