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Microwaves and Antenna Engineering Research Group

Pioneering the analysis, design and integration of high frequency electronics devices and systems

August 2017

Spyridon-Nektarios Daskalakis presents...

PhD student Spyridon-Nektarios Daskalakis has produced a video entitled: 'Wireless Communication with Ambient FM Backscatter Signals - Indoor Demonstration Tag & Reader' as part of his presenattion for the IMS2017 Conference.

Spyridion-Nektarios Daskalakis's Video from @isss_hw on Vimeo.

Abstract: Nowadays, the explosive growth of Internet-of-Things-related applications has necessitated the design of low-cost and low- /zero-power wireless sensors. Although backscatter radio communication is a mature technology used in RFID applications, ambient backscattering is a novel approach taking advantage of ambient signals to simplify wireless system topologies to just a sensor node and a receiver circuit eliminating the need for a dedicated carrier source. This work introduces a novel wireless tag that utilizes broadcast frequency modulated (FM) signals for backscatter communication. The proposed proof-of-concept tag comprises of an ultra-low-power microcontroller (MCU) and a radio frequency (RF) front-end for wireless communication. The MCU accumulates data from multiple sensors through an analog-to- digital converter, while it transmits the information back to the receiver through the front-end by means of backscattering. The front-end uses On-Off keying (OOK) modulation and FM0 encoding on ambient FM station signals. The receiver consists of a commercial low-cost software defined radio which downconverts the received signal to baseband and decodes it using a suitable signal processing algorithm. The prototype tag was tested in a real-time indoor laboratory deployment. Operation over a 5 m tag-reader distance was demonstrated by backscattering information at 2 Kbps featuring an energy per packet of 36,9 uJ.

EMP Seminar: Samuel A. Rotenberg

SR Picture1Samuel A. Rotenberg, PhD student at Heriot-Watt University will present his talk 'High efficient rectifier for high power in Wireless Power Transmission' on Thursday 10th August at 2pm in EM 2.33. All are welcome!

Synopsis: This presentation describes a bridge diode rectifier operating at 2.4GHz for use in wireless power transmission systems with motivations to wirelessly charge an electronic device in the radiating near-field. A retrodirective antenna array which provides a high power RF gain has been designed and measured as well as a rectenna to convert RF power to DC. The rectifier of the rectenna offers a full-wave-rectification and exhibits a 76% efficiency for 26dBm and 74% at 27dBm while also providing more than 60% of efficiency from 15dBm to 29dBm of input RF power at 2.4 GHz.

Biography: Samuel A. Rotenberg was born in Paris, France, in 1990. He received his French engineer diploma in numerical system and an MSc diploma in network communication at Heriot Watt university in 2016. in 2015, he received as well a postgraduate degree in Auckland university, New Zealand in robotic, smartphone security and 3D vision. Currently, living Edinburgh U.K, his research interests include retrodirective and rectifier systems focused on wireless power transmission applications, radar for automotive vehicles and analysis and design of waveguide

Paper accepted for the URSI GASS Conference in Montreal

Conference paper “An Efficient Rectifier for an RDA Wireless Power Transmission System Operating at 2.4 GHz” which deals with the design and measurement of a full-bridge rectifier and receiving antenna array operating at 2.4 GHz for wireless power transmission system applications, and with motivations to wirelessly charge an electronic device in the radiating near-field has been accepted for the international conference URSI GASS. This conference will take place in Montreal, Canada, August 19-26, 2017.  

The Authors, are Samuel A. Rotenberg, Pascual D. Hilario Re (PhD student), Symon Podilchak and Prof. George Goussetis. For their work, the first author who will present the article for an oral presentation on Friday, August 25, 2017, will receive the young scientist Award.

Microwaves Researcher Jose moving on to a new challenge!

Jose

José Antonio García Pérez was born in Murcia, Spain in 1989. He received the MSc degree in Telecommunication Engineering from the Technical University of Cartagena (UPCT), Spain, in 2013.  Since 2014 he has been doing a PhD in Electrical Engineering at Heriot-Watt University.  During his PhD at Heriot-Watt, he has been working on novel millimetre wave power combining techniques for power amplifiers and the design of millimetre wave block up-converters. From September 2017, he will be working in Elche, Spain at Tempe S.A. (Inditex group) as an RF engineer for the deployment of RFID technology in all the Inditex group stores. 

"Being at Heriot-Watt University during the last 3 years has been an unforgettable experience. Working in such a world recognized institution and as part of its prestigious Microwave Group has given me the opportunity to develop both at personal and professional levels. The work dynamics and the good atmosphere with great colleagues and people make Heriot-Watt a great place to develop your career.

Microwaves student receives Young Scientist Award 

An Efficient Rectifier for an RDA Wireless Power Transmission System Operating at 2.4 GHz” which deals with the design and measurement of a full-bridge rectifier and a receiving antenna array operating at 2.4 GHz for wireless power transmission system applications, with motivations to wirelessly charge an electronic device in the radiating near-field has been accepted for the international conference URSI GASS. This conference will take place in Montreal, Canada, August 19-26, 2017.  The Authors, Samuel A. Rotenberg; Pascual D. Hilario Re (PhD student); Dr. Symon K. Podilchak; and, Prof. George Goussetis. Samuel, who will present the article for an oral presentation on Friday, August 25, 2017, will receive the young scientist Award.

April 2017

Antenna Workshop hosted by Catapult

Antenna workshopDr. Carolina Mateo-Segura was invited to give a talk at the Antenna Workshop hosted by the Catapult (Satellite Applications) in collaboration with the KTN’s Satellite Terminals Working Group (STWG) https://sa.catapult.org.uk/news-events-gallery/events/2nd-antenna-workshop/. Dr. Mateo-Segura discussed the most “Recent developments at Heriot-Watt University in Antenna Technology for future satellite communication systems” highlighting the key findings of several EU and national projects. The workshop aimed to inform delegates on current challenges and share the latest in technological developments. It attracted over 30 satellite operators, terminal manufacturers, antenna suppliers and academics (Delegate list: https://s3-eu-west-1.amazonaws.com/media.sa.catapult/wp-content/uploads/2017/02/11151358/Antenna-Workshop-delegate-list.pdf) and was a great networking opportunity.

 

Dorada partner attends the Aurora Leadership Development Programme  

antenna 2Antenna 3

Dr. Carolina Mateo-Segura has completed the Aurora Leadership Development Programme 2017 run by the Leadership Foundation for Higher Education. The programme consisted of 4 development days, 1 action learning day, self-directed learning and a 5 month mentoring partnership. Dr. Mateo-Segura said: “It is being an absolute great experience, very inspirational, a fantastic opportunity for networking and to understand that you are not alone; that your worries are the worries of others, that your challenges are common and that failing is also a way to succeed much faster.” This women's leadership development initiative aims to encourage women in academic and professional roles to think of themselves as leaders and develop leadership skills, and to help institutions maximise the potential of their female staff.

March 2017

New project with the LRF International Consortium of Nanotechnologies (ICON)

IMG 6135We would like to welcome Mr. Spyros Daskalakis joining the group as a Lloyds Register Foundation doctoral student, as part of the
LRF International Consortium of Nanotechnologies (ICON) (https://www.lrf-icon.com/). The Lloyd's Register Foundation International Consortium of Nanotechnologies aims to develop a global network of nanotechnologies focussed on addressing the challenges raised in the Foresight Review of Nanotechnologies (2014) to enhance safety.  The global network will comprise world-leading academics, industrialists and students.
Spyros will be working on his Ph.D. dissertation on ' Additive manufacturing of millimetre wave wireless sensors based on nanoparticle inks for pervasive IoT sensing and 5G communications' under the supervision of Dr. Apostolos Georgiadis. Spyros and Apostolos attended the ICON conference on April 7, 2017 in Athens, where Spyros presented his work proposal.

Undergraduates in Electrical Engineering visit Leonardo's

Leonardo

Undergraduates in Electrical Engineering visited Leonardo’s facilities at Crewe Toll in Edinburgh on both 8th and 22nd March 2017 , for a private session which aimed to align their employability skills with the company’s recruitment campaign. As well as learning first-hand information about summer/MEng placements, industrial internships and graduate programmes, students in Electrical Engineering enjoyed a private tour around this modern engineering company, learning where and how Leonardo designs, manufactures and tests their radar and laser products.Undergraduates in Electrical Engineering visited Leonardo’s facilities at Crewe Toll in Edinburgh on both 8th and 22nd March 2017 , for a private session which aimed to align their employability skills with the company’s recruitment campaign. As well as learning first-hand information about summer/MEng placements, industrial internships and graduate programmes, students in Electrical Engineering enjoyed a private tour around this modern engineering company, learning where and how Leonardo designs, manufactures and tests their radar and laser products.

“It is very important that our students understand what a career in high frequency engineering involves, the required skills and the prospects for career development. Leonardo is a major corporation in Aerospace, Defence and Security, which is just a stone’s throw away from Heriot-Watt and by working together we can support the development of our future engineers.” Dr Carolina Mateo-Segura, Assistant Professor, Heriot- Watt University

The event took place in parallel to the learning and teaching strategies developed by the RF- and Microwave Engineering group, which aims to involve industry in designing the current curriculum and projects. It also took place in parallel to the learning and teaching strategies developed by the RF- and Microwave Engineering group, which aims to involve industry in designing the current curriculum and projects. Neil Raphael, lead Engineer at Leonardo, hopes to make it an annual event in an effort to accelerate their graduate recruitment process through a plan of action and re-setablishing the collaboration between Leonardo and Heriot-Watt University.

Equate Scotland at Heriot-Watt University

Equate Scotland, Women in Science, Engineering and Technology has been in Heriot-Watt presenting a series of thought-provoking activities and discussions, exploring lawful ways of increasing women’s participation and progression in STEM. The workshop highlighted unconscious bias in a STEM context and the actions required to encourage talented women to join and stay in STEM. Women and girls have the skills and aptitudes needed to thrive in science, technology and engineering, yet remain grossly underrepresented. STEM academia needs these skills, along with the new ideas and problem solving that flourish in diverse workforces. Dr. Carolina Mateo-Segura who participated in this programme said “You cannot be what you cannot see; girls need to see the roles of women in engineering careers, the picture that we are projecting does not justify the range of disciplines that engineering embrace. We need to get out there and inspire girls by communicating our own vision with the hope to make a better informed decision and bring diversity to this field.”

Microwaves are part of the Big Data Clinic!

CeeDDr. Carolina Mateo-Segura attended the clinic “Use of Big Data to Bring About Transformation of the Production Environment” at Leonardo, UK organised by the Centre for Engineering Education & Development. The clinic looked at how Leonardo Airborne and Space Systems Division is currently piloting the exploitation of big data within their manufacturing environment and how this could lead to the transformation of their production environment. Dominic Philpott Head of Industrial Engineering addressed the strategic aims and technology road map to implement Leonardo’s vision for large data management in the future. The event gathered together a community of businesses and academics with expertise, experience and resource in the pursuit of operational excellence.  Dr. Carolina Mateo-Segura attended the clinic “Use of Big Data to Bring About Transformation of the Production Environment” at Leonardo, UK organised by the Centre for Engineering Education & Development. The clinic looked at how Leonardo Airborne and Space Systems Division is currently piloting the exploitation of big data within their manufacturing environment and how this could lead to the transformation of their production environment. Dominic Philpott Head of Industrial Engineering addressed the strategic aims and technology road map to implement Leonardo’s vision for large data management in the future. The event gathered together a community of businesses and academics with expertise, experience and resource in the pursuit of operational excellence.  Dr. Carolina Mateo-Segura attended the clinic “Use of Big Data to Bring About Transformation of the Production Environment” at Leonardo, UK organised by the Centre for Engineering Education & Development. The clinic looked at how Leonardo Airborne and Space Systems Division is currently piloting the exploitation of big data within their manufacturing environment and how this could lead to the transformation of their production environment. Dominic Philpott Head of Industrial Engineering addressed the strategic aims and technology road map to implement Leonardo’s vision for large data management in the future. The event gathered together a community of businesses and academics with expertise, experience and resource in the pursuit of operational excellence. 

Microwave researcher organises tour for Electrical Engineering Students

Microwaves2Dr. Carolina Mateo-Segura, Assistant Professor in the RF- and Microwave Group and Ms. Maria Kelly, Lead RF- Safety Specialist at Leonardo, have organised a private tour session for Heriot Watt’s Electrical Engineering students in 2nd and 3rd year to visit Leonardo’s facilities at Crewe Toll in Edinburgh. The students will learn first-hand information about summer/MEng placements, industrial internships and graduate programmes, as well as how Leonardo designs, manufactures and tests their radar and laser products. Dr. Mateo-Segura  says, “This initiative aims to provide a nurturing environment where our students can understand what a career in high frequency engineering involves, the required skills and the career options available for them”   The visits are scheduled for the 8th and 22nd of March at 13.00 and the school will provide a free bus service. If you are interested to join contact Dr. Carolina Mateo-Segura

 National Student Space Conference

Space Conference 2Dr. Carolina Mateo-Segura, attended the “National Student Space Conference” organised by UKSEDS. The conference was a two-day weekend event bringing together industrial and academic experts in the space sector. Delegates are primarily undergraduate and recent graduate engineers and scientists, which makes this event unique. World leading industries from Thales Alenia Space, Airbus, Eumetsat or ESA participated and sponsor the event, all keen to raise awareness of their activities and career opportunities. Dr. Mateo-Segura commented that “The UK space industry is growing by leaps and bounds and the breath of opportunities available is astonishing. You can be working building and operating a spacecraft or developing new technology for use in the next-generation of ground-station systems or upcoming satellite missions”.

February 2017

Bell Labs Prize competition

Nokia Bells Lab Prize2A team that includes Microwaves fellow Dr Apostolos Georgiadis and  Prof. George Goussetis wins the 3rd place in the 2016 Bell Labs Prize competition. The winners were selected from among seven finalists, who were in turn drawn from a total field of over 250 proposals from 41 countries. According to Bell Labs “prize winners demonstrated game-changing ideas in science, technology, engineering or mathematics with the potential to improve the future of the human experience by ten-fold.” In addition a cash prize of $35K, the team will also be given the opportunity to collaborate with the world-renowned researchers at Nokia Bell Labs on the further development of their ideas. 

Microwaves fellow Dr. Symon Podilchak wins the 2016 European Microwave Association Prize for his work on surface wave launchers. The prize recognises the best contributed paper to the European Microwave Conference, Europe’s prime annual event for microwave engineering attended by over 2000 delegates, with a value of €5,000. 

September 2016

Heriot-Watt University reaches out to La Sapienza

On Wednesday 21 September Dr. Symon Podilchak, the DORADA fellow seconded from Heriot-Watt Unviersity to Space Engineering, delivered a research seminar in La Sapienza Univeristy in Rome. The seminar, titled “Recent Developments of Planar Leaky-Wave Antennas Using Surface Waves” highlighted key findings undertaken as part of his involvement in DORADA including his 6-month secondment to Space Engineering. The seminar was well attended by faculty and reseach staff of La Sapienza and initiated collaborative opportunities and was coupled to the 2016 Nanoinnovation event.

August 2016

H2020 MSCA Innovative Training Network

On 16th August 2016 we signed as co-ordinators the H2020 MSCA Innovative Training Network project REVOLVE: Radio Technologies for Broadband Connectivity in a Rapidly Evolving Space Ecosystem: Innovating Agility, Throughput, Power, Size and Cost. The project (Grant Agreement number 722840, total value €1.8M) will kickoff on January 2017 and last for 4 years, bringing together a cohort of 7 Early Stage Researchers to investigate antenna and radio solutions for emerging satellite systems. More soon…

June 2016

ALPHASAT TDP#5 Aldo Paraboni propagation campaign

NASA for webOur research group are now operating a 'receive terminal' for the ALPHASAT TDP#5 Aldo Paraboni propagation campaign. Researchers from Heriot-Watt together with a team from  NASA have installed a satellite terminal within the university collecting transmissions from a geostationary satellite to assess the atmospheric absorption of the higher frequency waves. If Q-band communications is to be viable then reliable gateway feeds to transfer data need to be established and this is what the Heriot-Watt installation will help to record. Dr George Goussetis, Professor of Antenna and Microwave Engineering in the University’s School of Engineering and Physical Sciences, said, “Using the Q-band frequency for a wide-range of communications will rely on continuous and reliable availability. However the Q-band is a higher frequency than those currently in commercial use and that makes it more susceptible to breaking up due to weather conditions or similar.

“That’s why it is likely that multiple locations are needed to ensure a continuous ‘gateway’ for transmission. This is the start of an experiment to discover just how reliable the Q-band might be and whether it has a commercially viable future for telecommunications companies to use.”

Researchers hope that the experiment will result in higher frequencies (40 GHz, also known as Q-band) being used for future higher capacity satellite communication systems. This in turn may eventually release high bandwidth satellite links and improve broadband communication on planes, trains and other fast-moving platforms.

For more information you can watch this video: ESA-Space in Videos 

Dr. Carolina Mateo-Segura, Assistant Professor in the RF- and Microwave Group and Ms. Maria Kelly, Lead RF- Safety Specialist at Leonardo, have organised a private tour session for Heriot Watt’s Electrical Engineering students in 2nd and 3rd year to visit Leonardo’s facilities at Crewe Toll in Edinburgh. The students will learn first-hand information about summer/MEng placements, industrial internships and graduate programmes, as well as how Leonardo designs, manufactures and tests their radar and laser products. Dr. Mateo-Segura  says, “This initiative aims to provide a nurturing environment where our students can understand what a career in high frequency engineering involves, the required skills and the career options available for them”