100mm Standard Waveguide Section

WR187 Low Loss Straight Waveguide for Antenna Feeder and System Assembly

This product is a professional Straight Waveguide designed for low loss signal transmission in microwave systems. The waveguide features a WR187 (BJ48) rectangular waveguide interface with FDP48 flange connections. As a Straight Waveguide, it provides a direct transmission path for RF signals with minimal insertion loss. The section length is standard, with custom lengths available upon request. The construction uses aluminum material with conductive oxidation and paint coating for durability and corrosion resistance. This straight waveguide section is a fundamental building block for waveguide systems in radar, communication, and test applications.

This straight waveguide delivers excellent electrical performance across its operating frequency band. The Voltage Standing Wave Ratio (VSWR) is rated at 1.1, which shows very good impedance matching with minimal signal reflection. The insertion loss is very low, ensuring that signal power is transmitted efficiently through the waveguide section. The large cavity cross section allows high continuous wave and peak power transmission without breakdown or arcing. The robust aluminum construction provides high mechanical strength and resists vibration and deformation. The standard FDP48 flange interface ensures compatibility with common WR187 waveguide components. The conductive oxidation and paint coating provide protection against corrosion and environmental exposure.

One clear strength of this Straight Waveguide is its combination of low loss, high power handling, and mechanical durability. It is widely used in radar transceiver assemblies, antenna feeder lines, and main RF transmission links between power amplifiers and antennas. Other applications include broadcast television transmitters, microwave communication base stations, electronic warfare equipment, anechoic chamber testing, industrial microwave systems, ground station RF feeder systems, vehicle mounted and airborne RF equipment, and complete waveguide network assembly with bends, power dividers, loads, and couplers. The low VSWR and low insertion loss make this waveguide section ideal for applications where signal integrity is critical.

In practical use, this Straight Waveguide handles professional RF transmission tasks very well. For radar systems, it connects transmitters to antennas with minimal signal loss. For test laboratories, it provides a reliable straight section for building measurement setups. For broadcast and communication systems, it transmits high power signals efficiently through equipment racks and shelters. The FDP48 flange mates securely with standard WR187 components. The aluminum construction keeps weight reasonable while providing good durability. Custom lengths are available to meet specific system layout requirements. It stands as a solid example of a well designed straight waveguide section for reliable low loss RF transmission.