Broadband, high isolation radial line power divider/combiner

Details Broadband, high isolation radial line power divider/combiner Broadband, high isolation radial line power divider/combiner

1987-08-31

1989-04-25

LaRoche, Eugene R.

Amplifiers

With semiconductor amplifying device

Including distributed parameter-type coupling

330287, 330295, 333125, 333136, 333 21A, 333 11, H03F 360, H03H 748

Patent

active

048251755

ABSTRACT:
Disclosed is a power divider/combiner using two parallel plate radial transmission lines having parallel plate spacing of less than .lambda./2 and which operates in a higher order mode, preferably the first higher order circumferential mode TE.sub.11. High isolation between amplifiers coupled to the radial transmission lines at their circumferences is achieved by coupling an arrangement of circulators between the amplifiers and the radial transmission lines. This isolation arrangement reduces the effects of any spurious signals that are generated by means such as imperfections and imbalances in any active devices coupled to the radial line and permits de-energizing amplifiers as desired for lowering power output without degrading performance.

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