| 摘要 |
<p>A typical tuning circuit (40) which couples a negative resistance microwave diode (3t to the cavity (14) of a microwave power combiner (13) consists of a metallic rod (46) which is biased by a spring 62) against the diode (36) supported by a carrier (64) whin is effective to vary the position of the diode (36) along the longitudinal axis (41) of the rod (46). The rod (46) cooperates with bores (56, 58, 59) in a block (10) to comprise, seriatim, between the diode (36) and the cavity (14), a transmission line (46,59) whose length varies in accordance with diode (36) position, a fixed impedance transformer (46, 58) and a fixed length transmission line (46, 56).</p> |
