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Surface-Mount Zero-Ohm Jumper Resistor Characterization in High-Speed Controlled Impedance Transmission Lines
Aleksandr Vasjanov1, Vaidotas Barzdenas1
1Department of Computer Science and Communications Technologies, Vilnius Gediminas Technical University (VILNIUS TECH), 10223 Vilnius, Lithuania.
Sensors (Basel, Switzerland)
|May 13, 2023
Summary
Zero-ohm resistors (jumpers) in RF circuits show minimal impedance deviation and no significant signal attenuation up to 5 GHz, making them suitable for high-frequency applications.
Area of Science:
- Electrical Engineering
- Radio Frequency (RF) Engineering
Background:
- Zero-ohm resistors, or jumpers, are crucial in RF prototypes for system optimization and custom hardware configurations.
- Signal integrity challenges arise from inherent resistance and impedance in circuit connections, especially in complex RF systems.
Purpose of the Study:
- To quantitatively characterize standard surface-mount zero-ohm jumpers and solder wires in high-frequency applications.
- To assess the impact of these components on impedance and signal attenuation.
Main Methods:
- Utilized time domain reflectometry (TDR) for impedance measurements.
- Employed S-parameter measurements to evaluate signal attenuation (S21).
- Tested standard 0201, 0402, 0603, and 0805 package sizes, alongside lead-free and lead solder wires.
Main Results:
- A typical offset of approximately 3 Ω (5.8%) from the target 50 Ω impedance was observed.
- S-parameter measurements indicated no discernible impact on attenuation up to 5 GHz compared to a reference.
Conclusions:
- Standard zero-ohm jumpers exhibit acceptable impedance characteristics for RF applications up to 5 GHz.
- The tested jumpers and wires do not introduce significant signal loss, validating their use in high-frequency circuit design.
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