Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 2

Signal Transmission Related Publications

2 A Low Noise Microwave Filter with Minimum Distortion

Authors: Hung Wei Wu, Cheng Yuan Hung, Min Hang Weng, Siang Wen Lan, Wei Yu Chen, Chun Yueh Huang

Abstract:

In this paper, a low noise microwave bandpass filter (BPF) is presented. This filter is fabricated by modifying the conventional cross-coupled structure. The spurious response is improved by using the end open coupled lines, and the influence of the noise is minimized. Impedance matrix of the open end coupled circuit clarifies the characteristic of the suppression of the spurious response. The rejection of spurious suppression region of the proposed filter is greater than 20 dB from 3-13 GHz. The measured results of the fabricated filter confirm the concepts of the proposed design and exhibits high performance.

Keywords: Communication System, Signal Transmission, bandpass filter, Low noise, end open coupled line

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1 Characterization of Indoor Power Lines as Data Communication Channels Experimental Details and Results

Authors: Sheroz Khan, Shihab Abdel Hameed, AHM Zahirul Alam, A. F. Salami, W. A. Lawal, M. J. E.Salami

Abstract:

In this paper, a multi-branch power line is modeled using ABCD matrix to show its worth as a communication channel. The model is simulated using MATLAB in an effort to investigate the effects of multiple loading, multipath, and those as a result of load mismatching. The channel transfer function is obtained and investigated using different cable lengths, and different number of bridge taps under given loading conditions.

Keywords: channel modeling, Signal Transmission, Power Line Communication, transfer function

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