Sentence examples for notched frequencies from inspiring English sources
For the 'SVD' and hybrid C curves, the number of the notched frequencies M is 12.
In this case, the precoder for the upper spectrum block has six notched frequencies in the upper stopband and zero notched frequencies in the lower stopband and the precoder for the lower frequency block has six notched frequencies in the lower stopband and zero notched frequencies in the upper stopband.
Therefore, proposed band-notched UWB antenna presents high impedance characteristics at notched frequencies.
Once N B, the size of each RB, the spacing between the central frequency of each RB, and the notched frequencies, f i, i = 0, 1,.., K − 1, are determined, the matrix P RB is fixed.
Note that the PSD curve for SP(12 -OFDM in Fig. 4 is derived by using one precoder to precode the entire spectrum block of 300 subcarriers where the 12 -OFDMdancins are employed to nulliFigthe frequency responses at 12 notched frequencies (in which, six in the upper stopband and six in the lower stopband).
When the proposed antenna is operating at the two desired notched frequencies, the two corresponding LC-resonant circuits mentioned above will be syntonic, which leads to the input impedance to be opened.
In the notched frequency bands, it could be obviously investigated that the imaginary component curve shows parallel resonances and the real component presents high resistance characteristics.
The measurements show that VSWR is below 2 within the desired frequency bandwidth from 2.3 to greater than 11 GHz, whereas two notched frequency bands of 3.5-4.35 and 5.05-5.95 GHz for VSWR ≥ 2 are obtained.
The proposed ellipzoidal UWB antenna maintains omnidirectional radiation pattern, gain, linear phase response, <1 ns group delay, and transfer function in the whole UWB operating bandwidth except at <span class="lh">notched frequency bands.
The Envelope Correlation Coefficient is less than 0.02 over whole UWB frequency range.The variations in the notched frequency with the variations in mushroom EBG structure parameters are investigated.The antenna has been designed using FR-4 substrate and overall dimensions is (64 × 45 × 1.6) mm3.
After a year, the researchers report in The Proceedings of the National Academy of Sciences, those who listened to this custom-notched music reported a significant improvement in their tinnitus — the ringing was not as loud — compared with others who listened to music that was notched at frequencies not corresponding to their ringing frequency.
