June 2026

Manual vs Electric Waveguide Switches | Control, Speed, Reliability

Mechanical Positioning Power-Off Operation Project Context The internal linkage mechanism positions the waveguide channel at the selected port. This mechanical switching action does not depend on electronic control and remains operable when power is unavailable. I participated in a commissioning project for a shipborne satellite communication system that used manual waveguide switches in a humid, […]

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Waveguide Power Handling | Continuous Wave Power and Peak Power, Breakdown Limits, Cooling

NEWS / Dolph

Waveguide power handling capability is the primary indicator for the selection of microwave systems. Exceeding the power limit causes breakdown discharge inside the waveguide, leading to system failure. Continuous Wave (CW) Power Peak Power Breakdown Limit Cooling Sustained thermal and electrical limits Instantaneous electric-field limit Gas, pressure, geometry, and surface-condition limit Heat-removal method and thermal

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Waveguide Frequency Bands Chart | WR Sizes, Cutoff Frequency, Applications

NEWS / Dolph

Waveguides provide low-loss and high-power signal transmission for microwave and millimeter-wave systems. A waveguide frequency bands chart helps engineers compare WR sizes, operating frequency ranges, cutoff frequencies, flange interfaces, and application suitability before selecting components for radar systems, satellite communications, test equipment, antenna feeds, and custom RF assemblies. Correct selection should not rely on frequency

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Waveguide Flange Size Guide | EIA Standard, IEC Types, Gasket Fit

default / Dolph

When selecting waveguide flanges, the biggest pitfall I’ve encountered is that for the same WR model, the EIA and IEC systems share nearly identical inner widths but differ completely in bolt hole patterns, sealing grooves, and fit classes. Once, when sourcing parts for a satellite ground station, the client specified IEC standard UG-385/U, but I

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