Radio channel characterization
Path loss and multipath in UHF in indoor and agricultural environments; permittivity of leaves and soil.
Postdoctoral Researcher · Telecommunications Lecturer
Dr. Ricardo Robles Enciso Ph.D. in Information and Communication Technologies
I characterize the radio channel and design the instrumentation to measure it: propagation models in UHF and millimeter-wave bands, beamforming and custom electronic devices, from the schematic and PCB to the 3D-printed part. I now research electrochemical sensors at UCAM-SENS and teach Telecommunications at UCAM.
- Journal and conference papers
- 8
- Ph.D. at UPCT
- 2025
- Designing electronics
- 10+ years
- Published book
- 1
About me
Waves, circuits and applied science
- Current positionPostdoctoral researcher at UCAM-SENS and Telecommunications lecturer, UCAM
- Ph.D.Information and Communication Technologies, UPCT (2025)
- Ph.D. research groupMobile Communication Systems (SiCoMo), UPCT
- DegreeProfessional Master's in Telecommunication Engineering
- SpecialtyRadio propagation, instrumentation and embedded electronics
I hold a Ph.D. in Information and Communication Technologies from the Technical University of Cartagena. My thesis, «Characterization of the radio channel in the UHF band in indoor environments and citrus plantations», combines measurement campaigns, theoretical permittivity models for leaves and soil, and a multipath model validated at 1800 and 2100 MHz.
Throughout my studies I have brought my professional experience into my academic work, designing my own devices: a parameter and ECG logger for skydivers in free fall, an automated PADP measurement system for millimeter waves, and beamforming platforms based on virtual arrays.
Before and during my research I have worked as a freelancer in electronic design, CAD (SolidWorks), photovoltaic installations, home automation (KNX, Node-RED, Grafana, InfluxDB), CCTV and IT support, and more recently in metrology and ENAC accreditation (ISO 17025). Since 2026 I have been a postdoctoral researcher at UCAM-SENS, where I research and design electrochemical sensors, and a Telecommunications lecturer at UCAM: I research and develop devices at the university and train new students.
Research
Research lines
Understanding how waves propagate in real environments to design better wireless networks, from inside a building to a citrus plantation.
mmWave and beamforming
PADP directional measurements at 32 GHz and virtual circular arrays (V-UCA) for channel sounding at 3.5 GHz.
Wireless IoT
Propagation and transmission performance of LoRa, Zigbee and 5G indoors at 868 MHz.
Energy and simulation
Solar energy orchestrators and simulators for cyber-physical systems, such as Sim-PowerCS.
Electrochemical sensors
Research and design of advanced electrochemical sensors at UCAM-SENS (since 2026).
Projects
My own designs
From schematic and PCB to CAD, 3D printing and field testing. A selection of devices designed and built end to end.
Ph.D. thesis · 2021–2025
Radio channel in citrus plantations
Measurement campaigns and a multipath model (soil + tree rows) validated at 1800 and 2100 MHz.
Master's thesis · 2022
Automated PADP measurement system
Motorized positioner designed in SolidWorks and 3D printed to characterize the directional channel at millimeter waves.
Bachelor's thesis · 2020
Device for skydivers
Portable logger of parameters and electrocardiogram during free fall, tested in real jumps.
URSI 2023
Virtual circular array (V-UCA)
Low-cost rotating platform for beamforming at 3.5 GHz with a 4-degree beam.
URSI 2022
Custom mounts and antennas
Antenna mounts designed and 3D printed for directional measurements at 32 GHz.
MATLAB · 2022
Path loss simulator
Application to simulate the plantation propagation model: frequency, polarization, dielectrics and ABG model.
Freelance · 2017–2018
UWB + ultrasound positioning
Localization of an industrial mobile robot, integrated with a Siemens PLC over Modbus.
Freelance · 2018–2019
Wi-Fi automatic pet feeder
ESP12E-based controller with mobile app, with Gerber and SMD BOM ready for mass production.
2019
FM modulator
PLL, local oscillator, divider and low-pass filter: from schematic to assembled board.
Freelance · 2020–2021
Solar PV and home automation
Solar installations monitored with Node-RED, Grafana and InfluxDB, and Wi-Fi/Zigbee displays based on ESP32.
Publications
Scientific output
Journal papers, conference papers, academic theses and a popular-history book (2020–2025).
-
2025
HDL
Caracterización del canal de radiocomunicaciones para la banda de frecuencias de UHF en entornos de interior y agrícolas de plantación de cítricos
Doctoral thesis (in Spanish), Technical University of Cartagena Thesis
-
2024
DOI
Path Loss Characterization at the 1800 and 2100 MHz Frequency Bands in Citrus Plantations
IEEE Access, 12:191883–191892 Journal
-
2024
DOI
An Adaptive Energy Orchestrator for Cyberphysical Systems Using Multiagent Reinforcement Learning
Smart Cities (MDPI), 7(6):3210–3240 Journal
-
2024
Book
Emperadores Romanos: emperadores romanos desde Augusto hasta Rómulo Augústulo
Roman emperors from Augustus to Romulus Augustulus (in Spanish). Self-published, Murcia. ISBN 979-8337555768 Book
-
2023
DOI
Multi-agent Reinforcement Learning-Based Energy Orchestrator for Cyber-Physical Systems
ALGOCLOUD 2023, Springer, pp. 100–114 Conference
-
2023
Virtual Circular Array for Channel Sounding at 3.5 GHz
XXXVIII URSI National Symposium (URSI 2023) Conference
-
2023
DOI
Leaves Permittivity Estimation at 2.2 GHz for the Development of Propagation Models in Citrus Plantations
17th European Conference on Antennas and Propagation (EuCAP 2023) Conference
-
2023
DOI
LoRa, Zigbee and 5G Propagation and Transmission Performance in an Indoor Environment at 868 MHz
Sensors (MDPI), 23(6):3283 Journal
-
2023
DOI
Sim-PowerCS: An extensible and simplified open-source energy simulator
SoftwareX, 23:101467 Journal
-
2022
Wideband Directional Measurements in the 32 GHz Frequency Band in a LoS Corridor Situation
XXXVII URSI National Symposium (URSI 2022) Conference
-
2022
HDL
Sistema automatizado de medidas del perfil de potencia angular y de retardo (PADP) para la caracterización del canal direccional de radiocomunicaciones en la banda de milimétricas
Master's thesis (in Spanish), Technical University of Cartagena M.Sc.
-
2020
HDL
Diseño de dispositivo portátil para la medición de parámetros y electrocardiograma en paracaidistas durante la caída libre
Bachelor's thesis (in Spanish), Technical University of Cartagena B.Sc.
Skills
Toolbox
From academic research to field installation.
- Research
- Academic research, writing and publishing papers, LaTeX
- Telecommunications
- Radiocommunication, wave propagation, microwaves, LoRa, Zigbee
- Programming
- Java, Python, MATLAB, C, C++, Node-RED
- Electronics
- Circuit and PCB design, Gerber and BOM
- CAD and fabrication
- SolidWorks, AutoCAD, 3D printing
- Energy
- Design and installation of photovoltaic systems, low voltage, metrology
- Home automation
- KNX, Node-RED, Grafana, InfluxDB, Home Assistant
- Security
- CCTV (Safire, Hikvision, Uniview, ONVIF, RTSP), Ajax alarms, ANVIZ access control
- Virtualization
- Proxmox, Portainer, Docker
Background
Education and experience
Education
- 2021 – 2025
Ph.D. in Information and Communication Technologies
Technical University of Cartagena. Thesis on UHF radio channel characterization indoors and in citrus plantations.
- 2020 – 2022
Professional Master's in Telecommunication Engineering
Technical University of Cartagena. Master's thesis: automated PADP measurement system at millimeter waves.
- 2015 – 2020
B.Sc. in Telecommunication Engineering
Technical University of Cartagena. Bachelor's thesis: portable measurement and ECG device for skydivers.
Experience
- 2026 – present
Postdoctoral researcher
UCAM-SENS, Catholic University of Murcia. Research and design of advanced electrochemical sensors.
- Present
Telecommunications lecturer
Catholic University of Murcia (UCAM).
- 2025
Low-voltage metrology and certification
Calibration department, Masitec. Instrument calibration, installation certification, and design and management of the ENAC accreditation procedure (ISO 17025).
- 2021 – 2023
Pre-doctoral researcher
Mobile Communication Systems R&D group, UPCT. Electromagnetic propagation, propagation models and PADP instrumentation with beamforming.
- 2020 – 2021
Freelance: photovoltaic systems
Design, sizing and commissioning of off-grid and grid-tied installations with lead-acid and lithium batteries.
- 2015 – 2021
Freelance: security and access control
Coaxial and IP CCTV, Ajax alarms and ANVIZ time and attendance systems.
- 2014 – 2021
Freelance: IT support
Dedicated servers, cloud virtual machines, web and email hosting, and web design.
- 2017 – 2019
Freelance: electronic design
UWB positioning system, automatic feeder for mass production and automatic chicken-coop door.
Contact
Let's collaborate
Open to research collaborations, electronic design and instrumentation projects, and university teaching.