August 2011

Ultra-wide microstrip band pass filter using short circuited stubs

A novel ultra-wideband microstrip filter is proposed and physically implemented. The band pass filter is designed for short-circuited stubs with etched rectangular lattice. The etching provides better return loss. The quarter-wavelength short-circuited stubs are used to realize the lower stop-band characteristics. Simulated and measured result shows that the defected microstrip filter has a good performance, including...

Author(s): P. K. Singhal, Suman Mathur and R. N. Baral

August 2011

Automatic meter reading (AMR) based distribution security monitoring and distribution-supervisory control and data acquisition (D-SCADA) control

  Application of automatic meter reading (AMR) system is presently used for e-billing and e-monitoring. The power system of the future will incorporate advanced monitoring and control system that improve operations and system reliability. The concept presented in this paper includes installation of automatic meters in intermediate points of distribution system to monitor the load of the system and to control...

Author(s): T.  Ananthapadmanabha,   A. D. Kulkarni,  Madhvaraja,  A. P. Suma