When the dominant mode TE10 is propagated alone in the rectangular waveguide, expressions for the real and imaginary parts of the input impedance seen by the coaxial line are derived.
当波导只传输主模(te_(10)模)时，求得从同轴线看去的输入阻抗的实部和虚部表达式。
2
When using frequency sweep meter to measure the input impedance of antenna, the balanced - unbalanced transformer must be connected between coaxial transmission line and antenna.
用扫频仪测量天线的输入阻抗时，在同轴传输线与天线间应按平衡—不平衡变换器。
3
The design of input coupler for a Ku-band coaxial FEL amplifier is presented. Main parameters are given.