3 modes of transmission of waveguide

Waveguides transmit signals via ​​TE (Transverse Electric) modes​​ (e.g., TE10 dominant in WR-90), ​​TM (Transverse Magnetic) modes​​ (like TM11 with ​​cutoff frequency 6.56GHz​​), and ​​hybrid modes​​ (combining E/H fields). ​​TE10 operates at 8.2–12.4GHz​​ with ​​lowest attenuation (0.1dB/m)​​, while higher-order modes (TE20/TM11) cause ​​dispersion losses >3dB/m​​. Precision ​​machined flanges​​ maintain ​​VSWR <1.1​​ by suppressing unwanted modes. […]

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