TY - GEN
T1 - Impact of group delay in RF BPF on impulse radio systems
AU - Myoung, Seong Sik
AU - Kim, Young Hwan
AU - Yook, Jong Gwan
PY - 2005
Y1 - 2005
N2 - This paper presents analysis results of the effects of RF filter characteristics on the system performance of impulse radio. The impulse radio system transmits modulated pulses having very short time duration and information can be extracted in receiver side based on cross-correlation between received and transmitted pulses. Accordingly, the pulse distortion due to in-band group delay variation can cause serious system performance degradation. In general, RF bandpass filters inevitably cause group delay difference to the signal passing through the filter which is proportional to its skirt characteristic due to its resonance phenomenon. For time as well as frequency domain analysis, small signal scattering parameter S21 and its Fourier transform are used to characterize output pulse waveform under the condition that the input and output ports are matched. The output pulse waveform of the filter is predicted based on convolution integral between input pulse and filter transfer function, and resulting BER (Bit Error Rate) performances in the BPM (Bi-Phase Modulation) and PPM (Pulse Position Modulation) based impulse radio system are calculated.
AB - This paper presents analysis results of the effects of RF filter characteristics on the system performance of impulse radio. The impulse radio system transmits modulated pulses having very short time duration and information can be extracted in receiver side based on cross-correlation between received and transmitted pulses. Accordingly, the pulse distortion due to in-band group delay variation can cause serious system performance degradation. In general, RF bandpass filters inevitably cause group delay difference to the signal passing through the filter which is proportional to its skirt characteristic due to its resonance phenomenon. For time as well as frequency domain analysis, small signal scattering parameter S21 and its Fourier transform are used to characterize output pulse waveform under the condition that the input and output ports are matched. The output pulse waveform of the filter is predicted based on convolution integral between input pulse and filter transfer function, and resulting BER (Bit Error Rate) performances in the BPM (Bi-Phase Modulation) and PPM (Pulse Position Modulation) based impulse radio system are calculated.
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U2 - 10.1109/MWSYM.2005.1517103
DO - 10.1109/MWSYM.2005.1517103
M3 - Conference contribution
AN - SCOPUS:33749247996
SN - 0780388461
SN - 9780780388468
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 1891
EP - 1894
BT - 2005 IEEE MTT-S International Microwave Symposium Digest
T2 - 2005 IEEE MTT-S International Microwave Symposium
Y2 - 12 June 2005 through 17 June 2005
ER -