The 2503A is a bead-supported Type N coaxial air line used as a precision impedance standard for measurement and calibration. It has a physical length of 29.979 cm, operates from DC to 3.0 GHz, and exhibits a maximum VSWR of 1.03. The center conductor is held in place by a dielectric bead, enabling easier connection alignment. The model is designed for use in applications requiring stable electrical length and low VSWR.
Coaxial air lines are air-dielectric transmission lines with highly accurate dimensions that can be used as fundamental impedance standards in measurement and calibration applications, and may also be used to establish reference positions for measurements.
Bead supported air lines offer greater convenience and easier connections (the center conductor is automatically aligned by the dielectric bead for easy connection); beadless air lines offer better impedance and electrical length accuracies, as well as lower VSWR (the center conductor floats free in the air line body, and the male connector nut is retractable to facilitate insertion of the center conductor contact before the thread- on connection tightened.
| Maury Microwave | |
|---|---|
| Product Category | Calibration Instruments |
| Product Number | 2503A |
| Product Name | VNA Calibration Standard |
| Calibration Signal | Signal / Waveform Generator Output |
