center frequency


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center frequency

[′sen·tər ′frē·kwən·sē]
(communications)
References in periodicals archive ?
where, f represents the frequency, cf the center frequency, and scale is the scaling function.
To further explore the tuning aspect of the reconfigurable filter, varactor-diode with biasing circuit is introduced as the tuning element to electronically tune the center frequency of the ring filter.
The time modulation in 4D arrays can bring on equivalent amplitude excitations at the center frequency, and both amplitude and phase excitations at the sideband frequencies in a time-average sense.
Therefore, we applied the method described here to this waveform data and chose the center frequency and the time-window length for calculation of [Z.sub.mode]([t.sub.q], [f.sub.r]) by considering the power spectral density of the waveform (Fig.
For example, the center frequency for channel 6 is 2.437GHz, but the entire channel spans from 2.426GHz to 2.448GHz.
Indeed, for the initially applied power P' = -50.1 dBm, the shift of the center frequency is measured as +4.6 kHz (see the blue line in Fig.
Figure 1(c) shows another proposed [TSSIR.sub.b] with characteristic impedances and electrical lengths of ([Z.sub.1h], [[theta].sub.1b]), ([Z.sub.2b], [[theta].sub.2b]), and ([Z.sub.3b], [[theta].sub.3b]) and it resonates at the second center frequency of the proposed filter.
The carrier frequencies of this class of subband signals increase from subband to subband by a fixed frequency step A/c, and then the center frequency of the subband n can be represented by
The center frequency of the antenna mainly depends on the length.
Thus, the center frequency of the antenna and the maximum radiation direction can be changed respectively.
Given by the following equation, this accounts for the three wavelets to be considered at each center frequency:

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