A study of transmission mode conversion miter-bend for EC H&CD transmission line

A mode conversion miter-bend with angle controllable mirror was developed. By changing mirror angle, RF beam angle in the miter bend is controlled and transmission mode contents (LP
₀₁
and LP
₁₁
modes) are controlled. The miter bend was tested at 170 GHz mW-class low power RF system. The dependence of miter bend mirror angle and ratio of LP
₀₁
and LP
₁₁
modes was acquired. The concept of mode conversion system was validated.