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Definitions (27)
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broadband passive rf components
Innovative Power Products: Home | RF Glossary RF Glossary 90 Degree (90ยบ) Hybrid: A 4-port c [..]
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amplitude balance
The amplitude balance is the difference in the power levels at any given frequency for the same input level when measured at the output ports. Please see the individual product application note for mo [..]
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characteristic impedance
For a RF/microwave signal traveling in a transmission line, the characteristic impedance is the ratio of the amplitudes of the voltage and the current in Ohms. Characteristic impedance is determined b [..]
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coherent signals
Multiple RF or microwave signals exhibiting attributes such that when input to a power combiner their wave forms add constructively. For RF and microwave signals, the attributes of frequency, amplitud [..]
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combining loss
The Loss of output signal power due to the vector summing of semi-coherent input signals that differ slightly in phase and/or amplitude. The combining loss of semi-coherent signals is proportional to [..]
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directivity
Directivity is a measure of the quality of the directional coupler. Directivity = Coupling-Isolation
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frequency range
The span of frequency over which the component maintains all specified performance values.
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input vswr
Voltage standing wave ratio measured at the components input port with all output ports terminated with 50 ohms.
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insertion loss
Insertion loss is the amount of power (P) lost when transmitted through the component from the input port to the other ports. IL(dB)=10Log(Pin/(Pout)) please see individual components application note [..]
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isolation
Isolation refers to the ability of a component to prevent a signal from appearing at a port where it is unwanted. For example, in a power combiner, the ability to prevent signals at any input port fro [..]
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