@ARTICLE{
author={Nedelchev Marin,Mitic Milos,Kolev Alexander,Marinkovic Zlatica D},
year={2020},
title={Modeling and Design of Microstrip Coupled Resonator Filters based on ANNs},
journal={2020 43RD INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS AND SIGNAL PROCESSING (TSP)},
volume={},
number={},
pages={470-473},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Stosic Biljana P,Nedelchev Marin,Doncov Nebojsa S,Kolev Alexander},
year={2019},
title={Wave Digital Model of Edge Coupled Filter Based on Halfwave Coupled Resonator with Dumbbell-Shaped DGS},
journal={2019 14TH INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGIES, SYSTEMS AND SERVICES IN TELECOMMUNICATIONS (TELSIKS 2019)},
volume={},
number={},
pages={29-32},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Nedelchev Marin,Marinkovic Zlatica D,Kolev Alexander},
year={2019},
title={ANN Modelling of Planar Filters Using Square Open Loop DGS Resonators},
journal={FUTURE ACCESS ENABLERS FOR UBIQUITOUS AND INTELLIGENT INFRASTRUCTURES, FABULOUS 2019},
volume={283},
number={},
pages={363-371},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Nedelchev Marin,Stosic Biljana P,Doncov Nebojsa S,Kolev Alexander},
year={2019},
title={Tri-Section Wideband Branch-Line Hybrid: Design, Simulation Technique and Measurement},
journal={2019 42ND INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS AND SIGNAL PROCESSING (TSP)},
volume={},
number={},
pages={94-97},
document_type={Proceedings Paper},
}