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Frequency resolution is an important specification for applications that measure signals that are close together and need to be distinguished from one other. The IF filter bandwidth is called the resolution bandwidth (RBW) because the shape and bandwidth of the IF filter determines the resolvability between signals. In addition to filter bandwidth, the selectivity, filter type, residual frequency modulation (FM) and noise sidebands are important factors to consider in determining useful frequency resolution. Products & Services
Scalar network analyzers measure the amplitude portion of scattering or S-parameters, reflection and transmission coefficients between the incident and reflection waves that describe a device’s behavior under linear conditions at the microwave frequency range.
Spectrum analyzers and signal analyzers display raw, unprocessed signal information such as voltage, power, period, wave shape, sidebands, and frequency. They can provide the user with a clear and precise window into the frequency spectrum.
Passive filters are implemented using only passive components such as resistors, capacitors and inductors. These filters do not produce any amplification of the input signal.
Noise figure meters measure the noise contribution of an amplifier relative to a noise-free amplifier at a reference temperature. For most Ku-band amplifiers, values are expressed in decibels (dB).
Frequency converters and translators scale and/or filter frequency inputs to produce outputs signals with frequencies that are a function of the inputs.
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Topics of Interest
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In an image reject mixer (IRM) the image is separate from the real signal by vector subtraction. An image is a spurious signal occurring in a receiver's IF terminal together with the real signal. If...
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Technical Articles
Frequency and Resolution Options for PWM Outputs (.pdf)
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Specifying Resolution of System Components
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Function Generators: Frequency Response Measurements, Linear / Log Display - Introduction
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Analysis of Ciliary Beat Pattern and Beat Frequency Using Digital High Speed Imaging: Comparison with the Photomultiplier and Photodiode Methods
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Electron Spin Resonance Experiment
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Coupling High Performance Servos to Mechanical Loads
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Electronics for Imaging Systems
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Video System Basics
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