Apparatus and method for individually testing combined active elements
First Claim
1. Apparatus for independently testing two active components each connected to an input quadrature coupler and an output quadrature coupler, comprising:
- a first additional quadrature coupler, connected to said input coupler.
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Accused Products
Abstract
This device enables one to perform individual measurements, tests, and tuning of active elements in a circuit in which the active elements are combined using couplers. Typically, the active elements are amplifiers which are power combined using quadrature power dividers and combiners. The invention uses two additional quadrature couplers, one at the front and one at the back of the circuit. All the power is introduced into one input port of the first additional coupler. The action of the first two couplers results in power flowing through one of the active elements only. The action of the second pair of couplers results in the flow of power through one output port only. After testing, the additional couplers are removed. The invention enables the one step fabrication of components on the substrate followed by testing, rather than the more time consuming and complex separate assembly and testing of four substrates.
11 Citations
12 Claims
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1. Apparatus for independently testing two active components each connected to an input quadrature coupler and an output quadrature coupler, comprising:
a first additional quadrature coupler, connected to said input coupler. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Method for individually testing two active devices that are parallel connected via an input quadrature coupler and an output quadrature coupler comprising:
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connecting a first additional quadrature coupler to said input coupler; and applying a test input signal to an input port of said first additional coupler. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification