Dr. Antonios Constantinides

Cyprus Scientific and Technical Chamber (ETEK):

1. Licensed to practice electronics engineering including the science of information and Technology issued 1996
2. Licensed to practice power electrical engineering (First Class-Top Range-Unlimited Power issued 1996)

Electromechanical Services of Cyprus Government:

1. First Grade Certificate (Unlimited Power at all Voltages) 2012

Institute of Engineering Technology, (IET) U.K:

1. Member of the IET & Chartered Engineer (Engineering Council, UK 2002)

Society of Broadcast Engineers, USA 2000

1. Certificate of Senior RF Broadcast Engineer

1. 2019-2020 Research Coordinator, SignalGenerix Limassol-Cyprus
2. 2003-2015 Director of Engineering-  Reseach Coordinator, ET Broadcast LTD- Cyprus
3. 1998-2001 Project Manager-Research Coordinator, ET Industries Inc.-USA

Areas of Research Interest

Research Projects co-funded by the Republic of Cyprus and the European Regional Development Fund.

My research expertise integrates RF propagation, advanced antenna systems, and power electronics for reliable communication and broadcasting. I have developed models of HF interference over Cyprus and analyzed the effect of tropospheric ducting on digital DAB/DAB+ radio in the Eastern Mediterranean, designing low-profile, circularly polarized phased array antennas to monitor these signals. Crucially, my work in power electronics focuses on optimizing the efficiency and linearity of RF systems by designing and implementing precise temperature compensation and biasing circuits for LDMOS power amplifiers.

1. I am a confirmed academic reviewer, having evaluated 13 papers in 2024 for several MDPI journals including Applied Sciences, Electronics, Remote Sensing, and Atmosphere.
2. Post Doctoral Research “Extending HF Interference Studies over Cyprus Frederick University Research Center.
3. The primary objective of the research was to extend the existing dedicated HF interference monitoring system to provide effective measurements and analysis of bandwidth, azimuthal and high-angle (corresponding to signals arriving from high elevation angles) HF spectral occupancy in Cyprus.
4. Research Funded Project: Optimizing Digital Video Terrestrial Transmitters (DVB-T) Research Coordinator: The funded research was focused around the efficiency, optimization and linearity of DVB-T, COFDM high power amplifiers. Cyprus Research & Innovation Foundation
5. Research Funded Project :The funded research was around the design and development of an ultra-broadband solid state laterally diffused metal oxide semiconductor (LDMOS) amplifier (1KW CW) that enables operation by DRM+ or Digital Audio Broadcasting (DAB+) radio transmitters. Ministry of Energy Commerce Industry and Tourism

1. Low-Profile Circularly Polarized HF Helical Phased Array: Design, Analysis, and Experimental Evaluation. Constantinides, A. et al. (2024). Applied Sciences, 14(12), p. 5075.

2. Atmospheric Ducting Interference on DAB, DAB+ Radio in Eastern Mediterranean. Constantinides, A., Najat, S. and Haralambous, H. (2022). Electronics, 11(24), p. 4183.

3. Models of HF Interference over Cyprus. Constantinides, A. et al. (2022). Applied Sciences, 12(22), p. 11808.

4. HF Noise Characteristics over Cyprus. Haralambous, H., Constantinides, A. and Paul, K.S. (2022). Remote Sensing, 14(23), p. 6040.

5. Correlation between HF Interference at Low and High Elevation Angle. Constantinides, A. and Haralambous, H. (2022). 2022 International Symposium on Electromagnetic Compatibility – EMC Europe.

6. A Compact Active Monitor Antenna for HF Spectral Occupancy Measurements. Constantinides, A. and Haralambous, H. (2022). 2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC).

7. A Compact Wideband Active Two-Dipole HF Phased Array. Constantinides, A. and Haralambous, H. (2021). Applied Sciences, 11(19), p. 8952.

8. HF Spectral Occupancy and Azimuthal Interference Monitoring over the Eastern Mediterranean. Haralambous, H. and Constantinides, A. (2021). 2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).

9. Biasing LDMOS Amplifiers Employing a Simple Passive Temperature to Voltage Converter. Constantinides, A. (2017). Journal of Electrical Engineering and Electronic Technology, 06(02).

10. A Very Compact Circular Adaptive Array for New Generation Mobile Commercial Receivers. Constantinides, A.A. (2017). Open Journal of Antennas and Propagation, 05(01), pp. 1–6.

11. Improving the LDMOS Temperature Compensation Bias Circuit to Optimize Back-off. (2014).

12. A Novel Design in the Use of Planar Transformers for LDMOS Based Amplifiers in Bands II, III, DRM+, DVB-T and DAB+. (Undated).

13. Collinear Arrays and Techniques for Down-Tilting. (2002). ARRL (Antenna Compendium Vol.7).

Submitted & Forthcoming Research:

1. Design and Analysis of a Miniaturized Active Circularly Polarized Normal-Mode Helical Antenna for Vehicular DAB+ Phased Array Systems. The Symposium on Microwave, Antenna, and Propagation (SMAP) 2026 (Forthcoming).
2. Sustainable Energy Savings in DAB+ Networks Using a Square Phased Array (submitted). International Conference on Sustainability and Innovation Processes and Systems (2025) (Submitted).
3. Mitigating Anomalous Propagation: A Study of Climatic Interference in Bahrain’s Radio Spectrum. The 2026 IEEE 10th International Conference on Engineering, Technologies & Applied Sciences (ICETAS 2026) (Forthcoming).

The Applied Computational Electromagnetics Society, USA.
Advances in Wireless Communications and Networks, 548 FASHION AVENUE NEW YORK, NY 10018 U.S.A.

1. Scientific journals reviewer
2. Editorial Board Member
3. Member of the Institute of Engineering Technology, U.K
4. Member of Cyprus Scientific and Technical Chamber