Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1996-11-27
1999-02-16
Pascal, Robert J.
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333105, 333125, H01P 110
Patent
active
058724915
ABSTRACT:
An improved Wilkinson-type power divider/combiner possessing switching capabilities for selectively controlling operative modes of its constituent dividing/combining channels is disclosed. The switchable power divider/combiner includes N first switches connecting N input/output transmission lines to a common junction and N second switches connecting N isolation resistors coupled to the N input/output transmission lines to a common node. The operating mode of the power divider/combiner can be controlled by activating each pair of the first and second switches to a closed or open switch position. The impedance values of the dividing/combining channel transmission lines are adjusted to provide the optimal impedance matching in both N-way and (N-1)-way operating modes. The resulting switchable power divider/combiner is capable of providing efficient power combining and distribution in a low-loss, phase-balanced manner in both N-way and (N-1)-1 way modes. When one of the signal-processing channels in the dividing/combining system fails, the power divider/combiner is switched to the (N-1)-way mode to provide continuing operation of the system without any degradation in the signal characteristics.
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Chang Ik Soo
Kim Duk Yong
Ham Seungsook
KMW USA, Inc.
Pascal Robert J.
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