Multi-instrument ionospheric disturbance detection over the Eastern Mediterranean region. - Haris Haralambous; Ayman Mahrous; Photos Vryonides; Amira Shemis (IGARSS, 2010)

HF interference temporal and spectral characteristics over the eastern Mediterranean. - Haris Haralambous; Photos Vryonides (COMM, 2014)

Reconfigurable BPF with Wide Tuning Bandwidth Range Using Open- and Short-Ended Stubs. - Salman Arain; Abdul Quddious; Aqeela Saghir; Symeon Nikolaou; Photos Vryonides (MOCAST, 2019)

Single-/Dual-BPF Using Coupled-Line Stepped Impedance Resonators (CLSIR). - Aqeela Saghir; Abdul Quddious; Salman Arain; Photos Vryonides; Symeon Nikolaou (IEEE Trans. Circuits Syst. II Express Briefs, 2019)

Reconfigurable BPF With Constant Center Frequency and Wide Tuning Range of Bandwidth. - Salman Arain; Photos Vryonides; Abdul Quddious; Symeon Nikolaou (IEEE Trans. Circuits Syst. II Express Briefs, 2020)

High-Selectivity Single- and Dual-Band BPF Using a Cross Shaped Coupled-Line Resonator. - Aqeela Saghir; David Chatzichristodoulou; Abdul Quddious; Symeon Nikolaou; Photos Vryonides (MOCAST, 2021)

Novel Selective Feeding Scheme Integrated With SPDT Switches for a Reconfigurable Bandpass-to-Bandstop Filter. - Salman Arain; Photos Vryonides; Kashif Nisar; Abdul Quddious; Symeon Nikolaou (IEEE Access, 2021)

UHF IoT Humidity and Temperature Sensor for Smart Agriculture Applications Powered from an Energy Harvesting System. - Adnan Nadeem; David Chatzichristodoulou; Abdul Quddious; Nosherwan Shoaib; Loukia Vassiliou; Photos Vryonides; Symeon Nikolaou (IoTaIS, 2022)

Non-Reciprocal Balanced Bandpass Filters With Quasi-Elliptic Response. - Dakotah J. Simpson; Photos Vryonides; Symeon Nikolaou; Dimitra Psychogiou (IEEE Trans. Circuits Syst. II Express Briefs, 2022)

A Wide Tuning Range Bandpass Filter Using Unequal Width Parallel-Coupled Dual- Mode Resonator. - David Chatzichristodoulou; Michalis Yiannakou; Dimitris E. Anagnostou; Symeon Nikolaou; Photos Vryonides (MOCAST, 2023)

Polarization Converter Metasurface Using Machine Learning Methods for Bandwidth Enhancement. - David Chatzichristodoulou; Photos Vryonides; Symeon Nikolaou; Dimitra-Danai Varsou; Maria Antoniou; Dimitris Mintis; Antreas Afantitis (MOCAST, 2024)

A New Class of High-Selectivity Bandpass Filters With Constant Bandwidth and 5:1 Bandwidth Tuning Ratio. - Photos Vryonides; Salman Arain; Abdul Quddious; Dimitra Psychogiou; Symeon Nikolaou (IEEE Access, 2024)

Novel Technologies towards the Implementation and Exploitation of "Green" Wireless Agriculture Sensors. - Loukia Vassiliou; Adnan Nadeem; David Chatzichristodoulou; Photos Vryonides; Symeon Nikolaou (Sensors, 2024)

Multifunctional and Reconfigurable Bandpass Filters With Continuously Tunable Attenuation or Quasi-Reflectionless Behavior. - Adnan Nadeem; Symeon Nikolaou; Dimitra Psychogiou; Photos Vryonides (IEEE Trans. Circuits Syst. II Express Briefs, 2024)

High Gain Lens-Loaded Circularly Polarized Antennas for RF Jamming Applications. - David Chatzichristodoulou; Photos Vryonides; Dimitris Mintis; Christos Anastasiou; Antreas Afantitis; Symeon Nikolaou (MOCAST, 2025)

Design of a Non-Reciprocal Bandpass Filter Using Varactor Based Spatio-Temporal Modulation in the UHF Band. - Suhail Afroz Mohammad; Gande Arun Kumar; David Chatzichristodoulou; Symeon Nikolaou; Photos Vryonides; Gopi Ram (MOCAST, 2025)

Advanced Techniques for Designing Wideband and Highly Selective Bandpass Filters Through Cascaded Modules. - Adnan Nadeem; Nosherwan Shoaib; Antonis Papadakis; Symeon Nikolaou; Dimitra Psychogiou; Photos Vryonides (IEEE Access, 2025)