The phrase "a function of frequency in the" is correct and usable in written English.
It can be used in contexts related to mathematics, physics, or engineering, particularly when discussing how a variable changes with frequency.
Example: "The output of the circuit is a function of frequency in the range of 1 Hz to 10 kHz."
Alternatives: "dependent on frequency in the" or "related to frequency in the".
The dielectric α-relaxation of a series of linear polymethylphenylsiloxanes (PMPSs) has been investigated as a function of frequency in the temperature range 155.5 262 K.
The variation of ac-conductivity, as a function of frequency in the range (20 Hz–1 MHz) and temperature (298 523 K), was explained on the basis of the correlated barrier hoping (CBH) conduction mechanism.
The modified blends show very high dielectric constant value (105 107) as a function of frequency (in the range 50 Hz–35 MHz) and temperature in the range (40 150 °C).
The dielectric α-relaxation of a series of narrow-molecular-weight fractions of cyclic and linear polydimethysiloxanes (PDMSs) has been investigated as a function of frequency in the temperature range 140.5 157.5 K.
Wayne Kerr Precession Component Analyzer 6440B and Agilent E4991 Impedance Analyzer were used to study the dielectric constant and the dielectric loss tangent (tan δ) of these samples as a function of frequency in the frequency range 100 Hz to 1 MHz and 1 MHz to 1.29 GHz respectively.
A less well-known ultrasonic imaging technology is based on quantitative ultrasound (QUS), which analyzes the distribution of power as a function of frequency in the original received echo signals from tissue and exploits the resulting spectral parameters to characterize and distinguish among tissues.
The other is to look at the intensity as a function of frequency, in which case you see a wide spread of different frequencies, each with a little bit of intensity.
The conductivity is an increasing function of frequency in the case of conduction by hopping and a decreasing function of frequency in the case of band conduction [38].
Frequency is plotted as a function of frequency rank for the terms in the collection.
This shows the signal as a function of frequency (increasing to the right) and time (increasing to the top).
a, The THz refractive index of the graphene film as a function of frequency at various peak electric fields for the THz pump at 0.3 THz, showing reduction in the refractive index with both frequency and exciting field strength.
