What is BS EN IEC 61169‑1‑4 about?
BS EN IEC 61169 is a series on radio-frequency connectors. BS EN IEC 61169‑1‑4 provides test methods for the voltage standing wave ratio, return loss and reflection coefficient of RF connectors, including frequency-domain method, time-domain method, and gating.
BS EN IEC 61169‑1‑4 is applicable to cable RF connectors, microstrip RF connectors and RF adapters. It is also suitable for RF channels in multi-RF channel connectors and hybrid connectors.
BS EN IEC 61169‑1‑4 discusses the following terms:
- Voltage standing wave ratio (VSWR)
- Return loss (RL)
- Reflection coefficient
Who is BS EN IEC 61169‑1‑4 for?
BS EN IEC 61169‑1‑4 on Radio-frequency connectors is useful for:
- Radio device and component manufacturers
- Wi-fi and antenna manufacturers
- RF amplifier manufacturers
- Design engineers
Why should you use BS EN IEC 61169‑1‑4?
A Radio-frequency connector is an  electrical connector designed to work at  radio frequencies in the multi-megahertz range. BS EN IEC 61169‑1‑4 discusses various test methods for radio-frequency connectors.
BS EN IEC 61169‑1‑4 provides detailed information on the test procedures such as the Voltage standing wave ratio (VSWR). VSWR is a ratio, along a transmission line, of a maximum of the voltage to an adjacent minimum the magnitude of the voltage of a standing wave.
The return loss (RL) is the ratio of the power of the reflected wave to the power of the incident wave at a specified port or transverse cross-section of a transmission line. And reflection coefficient is the ratio of the normalized complex wave amplitude of the reflected wave to that of the incident wave at a port or transverse cross-section of a transmission line. Obtaining the VSWR, RL and RC ratios as described in BS EN IEC 61169‑1‑4 tell you how well the antenna is matched to the transmission line.
