Apparatus and method for combining electrical signals
First Claim
1. An apparatus for combining electrical signals, the apparatus comprising:
- a phase-shift distributed element with an input to accept a first signal and an output to supply the first signal with a phase shift; and
, a filter with a first signal port connected to the phase-shift distributed element output, a second signal port to accept a second signal, and a third signal port to supply combined and filtered first and second signals.
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Abstract
An apparatus and method are presented for combining electrical signals. The apparatus includes a phase-shift distributed element with an input to accept a first signal and an output to supply the first signal with a phase-shift; and a filter with a first signal port connected to the phase-shift element output, a second signal port to accept a second signal, and a third signal port to supply combined and filtered first and second signals. The phase-shift element has a signal path with a predetermined length and the phase-shift element output supplies the first signal with a phase angle shift responsive to the length of the signal path. In one example, the phase-shift element is formed from monoblock and coaxial elements, either singly or in combination, and is a tank circuit resonator in the filter.
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Citations
34 Claims
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1. An apparatus for combining electrical signals, the apparatus comprising:
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a phase-shift distributed element with an input to accept a first signal and an output to supply the first signal with a phase shift; and
,a filter with a first signal port connected to the phase-shift distributed element output, a second signal port to accept a second signal, and a third signal port to supply combined and filtered first and second signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for combining electrical signals, the method comprising:
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accepting a first signal;
accepting a second signal;
shifting the phase of the first signal using a distributed element;
combining the phase-shifted first signal and the second signal; and
,filtering the combined signal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification