7 disadvantages of waveguide
Waveguides suffer from high fabrication costs (up to $500/ft for precision-machined aluminum), bulky size (WR-90 measures 0.9″×0.4″), and limited bandwidth (typically ±10% of center frequency). They cannot handle DC signals, require complex flange alignment (0.001″ tolerance), and suffer modal dispersion (TE10 vs. TE20 interference). Moisture ingress raises VSWR beyond 1.5:1, demanding dry nitrogen purging in […]
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