35.505

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35.505 is an international standard that specifies the requirements for the impedance and return loss of RF cables and the voltage standing wave ratio (VSWR) of RF antenna systems. It is used in testing and verifying the performance of RF components such as antennas, connectors, and cables. This standard is often used in wireless communication networks for ensuring a reliable signal transmission.

In the 35.505 application field, RF cables, antenna systems, and its related components are tested in order to assess their performance. It is used for confirming the level of discrepancies between the transmission and reception of signals in wireless communication networks. This is an important factor in determining the performance and quality of the system. The standard is also used to ensure that the antenna is operating in the desired frequency range and is radiating the required power.

The standard measures the voltage standing wave ratio (VSWR) of an antenna system, which is the ratio between the maximum and minimum voltage amplitudes of reflected power. A low VSWR indicates that the antenna is in resonance and is therefore emitting power in all directions, while a high VSWR suggests that the antenna has a poor performance. This measure helps in ensuring that the antenna system is working efficiently.

The standard also measures the return loss of RF cables, which is the ratio of reflected to incident power. It is an indication of the amount of energy that is being reflected and absorbed by the cables. A low return loss indicates that the cables are functioning at an optimal level, while a high return loss suggests that the cables have poor performance. This measure helps in ensuring that the RF cables have the desired impedance.

The 35.505 also specifies the requirements for the impedance of RF cables. Impedance is the combined effect of resistance, capacitance, and inductance in an electrical circuit that determines the amount of power that is being delivered by the cables. A low impedance indicates that the cables are delivering a large amount of power, while a high impedance suggests that the cables have poor performance. Testing for impedance is essential for confirming that the RF cables are within the desired specifications.

Finally, the 35.505 application field and working principle serve as a guide for testing and measuring the performance of RF components. By adhering to this standard, engineers can ensure that the components are performing at an optimal level. This allows for reliable signal transmission in wireless communication networks and helps to reduce potential issues with the system.

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