Simultaneously Wireless InFormation and energy Transfer (SWIFT) - LEEDS costs
Lead Research Organisation:
University of Leeds
Department Name: Electronic and Electrical Engineering
Abstract
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
Publications
Chudpooti N
(2018)
Nano-Fluidic Millimeter-Wave Lab-on-a-Waveguide Sensor for Liquid-Mixture Characterization
in IEEE Sensors Journal
Chudpooti N
(2018)
Non-Invasive Millimeter-Wave Profiler for Surface Height Measurement of Photoresist Films
in IEEE Sensors Journal
Doychinov V.
(2018)
Investigation of implantable antennas for exploratory neuroscience studies
in IET Conference Publications
Doychinov VO
(2017)
Wireless Power Transfer for Gas Pipe Inspection Robots
Esfahani M
(2018)
Hybrid Additive Manufacture of Conformal Antennas
Malik B
(2019)
Higher-order mode substrate integrated waveguide cavity excitation for microstrip patch antenna arrays at 30-GHz
in Journal of Physics Communications
Malik B
(2020)
Wireless Power Transfer System for Battery-Less Sensor Nodes
in IEEE Access
Description | Wireless power transfer continues to receive a lot of attention in academia and industry, including applications as diverse as consumer electronics and transport applications.However, it is important to recognise that there are two distinct types; short range systems, operating in the near field, are quite well developed and can be safely used at high power levels, even to charge electric vehicles. This project was, however, focused on systems operating in the so-called far-field, in order to power robots and sensors over greater distances. Safety limits for radio wave transmissions impose a limit on what can be achieved in practice. For this reason, we have focused on two applications and the work is carrying on in two major EPSRC projects. The first application is powering sensor nodes at a distance from a drone or robot, and we are intending to demonstrate this for bridge condition monitoring in the Grand Challenge Project "Balancing the impact of City Infrastructure Engineering on Natural systems using Robots". The second is inside pipes, which we demonstrated successfully and will be exploring further in the Programme Grant "Pervasive Sensing for Buried Pipes" which started in March 2019. |
Exploitation Route | An interesting application area is in nuclear power applications, which were outside the scope of the project, but we may explore this with established centres for nuclear inspection robotics. For many applications, it is possible that AI and intelligent antennas could solve the safety issues for significant power transfer at a distance, but that is some way off and poses some interesting technical and regulatory challenges. Sensor nodes do not require as much dc power as robots and sensors could be powered wirelessly in the far field for many application sectors. |
Sectors | Aerospace Defence and Marine Agriculture Food and Drink Chemicals Construction Electronics Energy Environment Healthcare Leisure Activities including Sports Recreation and Tourism Manufacturing including Industrial Biotechology Pharmaceuticals and Medical Biotechnology Retail Security and Diplomacy Transport Other |
Description | The work on a fully-integrated wireless information and power transfer system, operating at 24 GHz has enabled battery-less sensor nodes to be realised. We were able to convert the RF power to DC with a measured efficiency of up to 35%, an improvement of ten percentage points compared with previously reported results. This is a result of significant interest to industry for internet-of-things (IoT) applications and we are exploring a number of links in order to develop the ideas further. |
First Year Of Impact | 2020 |
Sector | Agriculture, Food and Drink,Digital/Communication/Information Technologies (including Software),Electronics |
Impact Types | Economic |
Description | Balancing the impact of City Infrastructure Engineering on Natural systems using Robots |
Amount | £4,217,380 (GBP) |
Funding ID | EP/N010523/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 01/2016 |
End | 07/2021 |
Description | CHEDDAR: Communications Hub For Empowering Distributed ClouD Computing Applications And Research |
Amount | £2,028,049 (GBP) |
Funding ID | EP/X040518/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 06/2023 |
End | 06/2026 |
Description | Pervasive Sensing for Buried Pipes (Programme Grant) |
Amount | £7,290,965 (GBP) |
Funding ID | EP/S016813/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 03/2019 |
End | 02/2024 |
Description | STFC Food Security Network+ |
Amount | £612,732 (GBP) |
Funding ID | ST/P003079/1 |
Organisation | Science and Technologies Facilities Council (STFC) |
Sector | Public |
Country | United Kingdom |
Start | 01/2017 |
End | 03/2020 |
Title | Charaterisation of the dielectric properties of biological tissues |
Description | Data on the dielectric properties of biological tissues, i.e. complex relative permittivity of porcine skin and subcutaneous fat, as well as rat skin, was measured and collected using two different methods. These were an open-ended coaxial probe, and an aperture-coupled microstrip fixture. The data was collected over the frequency range 144 MHz to 18 GHz, for layers of various thickness. |
Type Of Material | Database/Collection of data |
Year Produced | 2018 |
Provided To Others? | No |
Impact | These data were collected in order to facillitate the development of wearable and implantable technology, which will benefit from either far-field wireless power transfer or near-field capacitive power transfer. The knowledge of the complex relative permittivity of tissue is crucial for any such technology, and as readily available data is scarce or outdated, we started measurements in collaboration with the Faculty of Biological Sciences at the University of Leeds, who will also benefit from the technology development. |
Title | Dataset associated with "Terahertz Dielectric Property Characterization of Photopolymers for Additive Manufacturing" |
Description | Figures and source data for the paper '0.2 - 1.4-THz Dielectric Property Characterization of Photopolymers for Additive Manufacturing': In this paper, resin-based photocurable polymer materials for stereolithography (SLA), digital-light-processing (DLP) and polymer-jetting (PolyJet) additive manufacturing techniques were characterized from 0.2 - 1.4 terahertz (THz) for their comprehensive dielectric properties, e.g. reflective index, absorption coefficient, dielectric constant and loss tangent, by using laser-based time-domain spectroscopy (TDS). Fourteen photocurable 3D-printing polymers were chosen due to their suitability, in terms of printing resolution, material characteristics and etc., for millimeter-wave (mm-wave) and THz applications. The propagation loss mechanism and other electrical/optical properties of the chosen photopolymers for terahertz radiation were determined by correlating absorption coefficients and loss tangents obtained from the measurements. To demonstrate the utilization of the selected photopolymers at THz spectrum, an asymptotically quasi-single-mode Bragg fiber microfabricated by DLP micromanufacturing technique using HTM140-V2 photopolymer was prototyped and characterized at the nominal frequencies from 0.246 to 0.276 THz. The measurement results show that the average propagation loss of the asymptotically single-mode THz Bragg fiber is less than 5dB/m for the whole band, which is the lowest propagation loss reported to date for asymptotically single-mode all-dielectric fiber at this frequency band. |
Type Of Material | Database/Collection of data |
Year Produced | 2018 |
Provided To Others? | Yes |
Description | Instrumentel |
Organisation | Instrumentel |
Country | United Kingdom |
Sector | Private |
PI Contribution | - |
Collaborator Contribution | Advice on applications, especially in railways |
Impact | - |
Start Year | 2016 |
Description | Project Partner: King's College London |
Organisation | King's College London |
Department | Institute of Pharmaceutical Science |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | KCL is modelling networks of SWIFT systems, we support with hardware expertise |
Collaborator Contribution | - |
Impact | = |
Start Year | 2015 |
Description | Project partner: University of Lancaster |
Organisation | Lancaster University |
Department | Department of Physics |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | Leeds is supporting the modelling work with hardware design expertise. |
Collaborator Contribution | Lancaster is focused on modelling SWIFT systems, currently looking at power splitting and time sharing approaches in realistic propagation environments |
Impact | - |
Start Year | 2015 |
Title | Wireless Power Transfer System Design |
Description | The software consists of a combination of scripts written in Python 3, as well as a Jupyter notebook which illustrates the software on a step-by-step basis. The software combines several pre-existing formulas, as well as original research, to facilitate the system-level design of a point-to-point wireless power transfer link. Inputs to the software can be distance, required DC power and/or available RF power, operating frequency, and any restrictions on the physical size of the system. Outputs generated are antenna array sizes, as well as anything else that was not specified as an input. |
Type Of Technology | Software |
Year Produced | 2017 |
Open Source License? | Yes |
Impact | This software was used to streamline and facilitate the design and development of the system for wireless power transfer through a metal pipe. The same software was also used to inform the ongoing development of a wireless power transfer system at the 5.8 GHz ISM band for powering sensor nodes with low-energy consumption. |
Description | Careers Workshop |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Schools |
Results and Impact | Viktor Doychinov delivered another workshop as part of IntoUniversity's Careers in FOCUS programme. The workshop was delivered to three groups of 8 children over the course of a day, and was delivered concurrently to workshops on careers in healthcare and dentistry. This time the topic of wearable electronics and personalised medicine was explored, via prototyping a heart-rate monitor using BBC micro:bits. A major part of the workshop was the hands-on activity, followed by a Q&A about the engineering profession in general, as well as different strands of electronic and electrical engineering. The main purpose of this workshop was to offer secondary school children from disadvantaged backgrounds an insight into what modern engineering is like and how they can pursue a career in it. Feedback from IntoUniversity staff was positive, with several children stating that they would like to learn more about different engineering careers. |
Year(s) Of Engagement Activity | 2018 |
Description | School Visit (Leeds) |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Schools |
Results and Impact | Viktor Doychinov delivered a talk to a group of secondary school pupils at the Cooperative Academy in Leeds on the topic of engineering in general and wireless power transfer in particular. This included an interactive activity where students explored the concept of solar powered satellites and their potential use to supply power to the Earth. This was part of a series of talks organised by the charity IntoUniversity, called Careers in FOCUS. The talk was well received by both the students and IntoUniversity representatives, prompting the creation of a follow-on activity as a "homework" project for the students. |
Year(s) Of Engagement Activity | 2017 |
Description | Tomorrow's Engineers |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Schools |
Results and Impact | National STEM Learning Centre in York. Event was organised by Tomorrow's Engineers for their Robotics Challenge. It was a whole day event where, together with other volunteer judges, we spoke to pupils aged 11-14 about robots they had designed using LEGO EV3, how they had approached various challenges and problems and solved them as teams. They had to give short presentations as well as demonstrate their robots completing some tasks. |
Year(s) Of Engagement Activity | 2017 |
Description | Workshop at the National Media and Science Museum in Bradford |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Schools |
Results and Impact | Viktor Doychinov took part in the National Media and Science Museum's DREAM BIG School Engineers Event, where he delivered an activity on the use of radiowaves to communicate with and control robots. Additionally, the use of robots to carry out tasks dangerous to humans was explored. This was achieved via a crystal radio set, which allowed pupils to listen to the "sound" of various metal objects, and a prototyle lamppost climbing robot developed at the University of Leeds. The talk and activity were delivered to 11 groups of 10 primary school students over the course of a day, including a larger homeschooled group. Engagement levels were high throughout the day, with the pupils interested in the prototype robot and its remote control, and how they themselves can design and build similar robots. There were sporadic engagements with members of the general public visiting the Museum at the same time, who were more interested in the crystal radio receiver. |
Year(s) Of Engagement Activity | 2018 |