Differences in Application Between Power Dividers and Power Splitters
●Introduction
■Power dividers are an RF microwave accessory constructed with equivalent 50 Ω resistance at each port. These accessories divide power of a uniform transmission line equally between ports to enable comparison measurements. Power dividers provide a good impedance match at both the output ports when the input is terminated in the system characteristic impedance (50 Ω). Once a good source match has been achieved, a power divider is used to divide the output into equal signals for comparison measurements. The power divider also can be used in test systems to measure two different characteristics of a signal, such as frequency and power, for broadband independent signal sampling. Besides dividing power it also can act as power combiners because they are bi-directional.
■Power splitters are constructed of two resistors. They are used for leveling and ratio measurement applications to improve the effective output match of microwave sources. The two-resistor configuration also provides 50 Ω output impedance to minimize measurement uncertainty in source leveling or ratio measurement applications.
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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May 20, 2020 |
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5989-6699EN |
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2.7 MB |
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