The phrase "a bandwidth of approximately" is correct and usable in written English.
You can use it when discussing the range or capacity of a bandwidth in contexts such as telecommunications, networking, or data transfer.
Example: "The network can support a bandwidth of approximately 100 Mbps, allowing for efficient data transmission."
Alternatives: "a bandwidth of about" or "a bandwidth roughly equal to".
Although the data to be transmitted is digital, the telephone channel is designed to carry voice signals having a bandwidth of approximately 300 Hz to 3300 Hz.
The experimental results show that a near-perfect absorption band with a bandwidth of approximately 0.4 μm in the THz region is obtained, which is in reasonable agreement with the simulated results.
Henceforth, the normal state of K3C60 is a metallic state with a bandwidth of approximately 0.6 eV; the electron-phonon interaction and electron-electron interaction are important for charge transport.
Evidence for a bandwidth of approximately an octave was originally provided by adaptation and masking studies [ 14, 15].
Indeed in this study we show that although univariate spectral measures do not distinguish between stimulus features at this scale, a multivariate approach quantifying the spectral shape (across a bandwidth of approximately 17 Hz) can be used to successfully predict stimulus orientation above chance at a single-trial level.
In this experiment, an OL490 tunable spectral light engine (Gooch and Housego, Orlando, FL) was coupled to a Zeiss Axiovert 100 inverted microscope, resulting in a spectral bandwidth of approximately 10 nm.
Irrespective of the applied magnetic field, PL spectra show a spectral bandwidth of approximately 250 nm (500 to 750 nm) and a maximum PL intensity peak around 582 nm.
We show that it is possible to achieve error-free demultiplexing of a 250 Gbit/s OTDM signal (25 × 10 Gbit/s channels) using a control-to-signal peak pulse power ratios of around 30:1 with a device bandwidth of approximately 30 GHz.
A 253-tap finite-impulse-response (FIR) equi-ripple BPF with a transition region bandwidth of approximately 50 MHz and a pass-band magnitude ripple of ±0.5 dB was used in the receiver.
We applied the technique to a Ku band pulsed EPR spectrometer and successfully observed a spin echo signal with a broad excitation bandwidth of approximately 1.6 mT using 80° pulses of 1.5 ns.
As a compromise we found that a 10 ms Gaussian pulse, corresponding to a theoretical excitation bandwidth of approximately 88 Hz leads to nicely decoupled spectra with artifacts arising only for very close resonances.
