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Microwaves and Antenna Engineering Research Group

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

The Injkjet-Printed Powered Circuits for Sensing and Indentification (iREACT) project establishes the application of inkjet printing as a key technology for the implementation of batteryless and wireless sensor and communication circuits based on wireless power transfer and energy harvesting, enabling the realization of the Internet of Things (IoT). Inkjet printing supports a large volume production, achieves a good resolution necessary for high frequency electronics, enables the use of a variety of low cost and flexible materials, and is a direct-write, and additive manufacturing technology. The research outcomes of the project focus in two goals, to demonstrate low profile, conformal, inkjet printed RF energy harvesters and autonomous wireless sensor and communication circuits, and to establish inkjet printing in millimeter wave frequencies. During the outgoing phase Marie Curie Global Fellow Dr.  A. Georgiadis is hosted at the Georgia Tech ATHENA laboratory led by Prof. Manos Tentzeris, a world leading laboratory in inkjet printed flexible RF electronics. 


  1. S. Nikoletseas, Y. Yang, A. Georgiadis, Editors, Wireless Power Transfer Algorithms, Tehnologies and Applications in Ad Hoc Communication Networks, Springer 2016. ISBN-13: 978-3-319-46809-9.


  1. J. Kimionis, A. Georgiadis, M. M. Tentzeris, 'Printed millimeter wave backscatter communications for scalable and low complexity Gbit data transfer', submitted to Nature Electronics, 2017.
  2. V. Palazzi, F. Alimenti, C. Kalialakis, P. Mezzanotte, A. Georgiadis, L. Roselli, "Highly integrable paper based harmonic transponder for low power and long range IoT applications, " in IEEE Applied and Wireless Propagation Letters, 2017.
  3. S.D. Daskalakis, J. Kimionis, A. Collado, G. Goussetis, M.M. Tentzeris, A. Georgiadis,´Ambient backscattering using FM broadcasting for low complexity and low power applications,´ IEEE Transactions on Microwave Theory and Techniques, v. 65, no. 12, pp. 5251 5262, Dec. 2017.
  4. J. Kimionis, A. Collado, M. M. Tentzeris, A. Georgiadis, "Octave and Decade Printed UWB Rectifiers Based on Nonuniform Transmission Lines for Energy Harvesting," in IEEE Transactions on Microwave Theory and Techniques , vol. 65, no. 11, pp. 4326-4334, Nov. 2017.
  5. V. Palazzi; J. Hester; J. Bito; F. Alimenti; C. Kalialakis; A. Collado; P. Mezzanotte; A. Georgiadis; L. Roselli; M. M. Tentzeris, "A Novel Ultra-Lightweight Multiband Rectenna on Paper for RF Energy Harvesting in the Next Generation LTE Bands," in IEEE Transactions on Microwave Theory and Techniques , vol.PP, no.99, pp.1-14, 2017
  6. J. Bito, R. Bahr, J.G. Hester, S.A. Nauroze, A. Georgiadis, M.M. Tentzeris, "A Novel Solar and Electromagnetic Energy Harvesting System with a 3D Printed Package for Energy Efficient Internet-of-Things Wireless Sensors," in IEEE Transactions on Microwave Theory and Techniques , vol. 65, no. 5, pp.1831-1842, May 2017. (INVITED)
  7. A. Georgiadis, M. M. Tentzeris, "Guest Editorial Special Issue on Radio-Frequency Identificaron (RFID), Sensing, and Imaging," in IEEE Transactions on Microwave Theory and Techniques , vol.64, no.7, pp.2292-2293, July 2016.
  8. C. Kalialakis, N.B. Carvalho, N. Shinohara, and A. Georgiadis, "Selected Developments in Wireless Power Standards and Regulations, " in IEEE Communications Magazine, Standards Supplement, vol. 54, no. 7, pp. 9-11, July 2016. Also available in IEEE Standards Education E-magazine (online), vol. 6, no. 2, June 2016.
  9. F. Bolos, J. Blanco, A. Collado and A. Georgiadis, "RF Energy Harvesting From Multi-Tone and Digitally Modulated Signals," in IEEE Transactions on Microwave Theory and Techniques, vol. 64, no. 6, pp. 1918-1927, June 2016.
  10. S. Kim, A. Shamim, A. Georgiadis, H. Aubert and M. M. Tentzeris, "Fabrication of Fully Inkjet-Printed Vias and SIW Structures on Thick Polymer Substrates," in IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 6, no. 3, pp. 486-496, March 2016.


  1. S.N. Daskalakis, A. Collado, A. Georgiadis, M.M. Tentzeris, 'Backscatter Morse Leaf Sensor for Agricultural Wireless Sensor Networks,' in Proc. 2017 IEEE Sensors, Glasgow, UK, Oct 30 - Nov. 1, 2017.
  2. A. Georgiadis, J. Kimionis, M. M. Tentzeris, '3D/Inkjet-printed Millimeter Wave Components and Interconnects for Communication and Sensing,' in Proc. 2017 IEEE Compound Semiconductor IC Symposium (CSICS), Miami Marriott Biscayne Bay, USA, October 22–25, 2017. (INVITED)
  3. S.N. Daskalakis, A. Georgiadis, A. Collado, M.M. Tentzeris, 'A UHF Rectifier with 100% Bandwidth Based on a Ladder LC Impedance Matching Network,' in Proc. 2017 EuMC, Nuremberg, Germany, 8-13 Oct. 2017.
  4. C. Mateo-Segura, A. Georgiadis, A.A. Rodriguez, R. Bahr, M.M. Tentzeris, A. Collado, G. Goussetis, , '3D printed planar bifocal lens antenna for multi-beam applications,' in Proc. 38th ESA Antenna Workshop, on Innovative Antenna Systems and Technologies for Future Space Missions, ESA/ESTEC, Oct 3-6, 2017.
  5. S.N. Daskalakis, J. Kimionis, A. Collado, M.M. Tentzeris, A. Georgiadis ' Inkjet-printed 24 GHz rectenna on paper for millimeter wave identification and wireless power transfer applications,' in Proc. 2017 IEEE MTT-S IMWS on Advanced Materials and Processes for RF and THz Applications, Pavia, Italy, 20-22 Sep. 2017.
  6. A. Georgiadis, 'Challenges and limitations in wireless power transfer systems.' in Proc. URSI GASS 2017, Montreal, CA, 19-26 Aug. 2017.
  7. J. Kimionis, A. Georgiadis, M. M. Tentzeris, ‘Millimeter-wave Backscatter: A Quantum Leap for Gigabit Communication, RF Sensing, and Wearables,’ in Proc. IEEE MTT-S IMS 2017, Honolulu, HI, USA, 4-9 June 2017.
  8. S.N. Daskalakis, J. Kimionis, A. Collado, M.M. Tentzeris, A. Georgiadis ‘Ambient FM Backscattering for Smart Agricultural Monitoring,’ in Proc. IEEE MTT-S IMS 2017, Honolulu, HI, USA, 4-9 June 2017.
  9. A. Servent, S. Daskalakis, A. Collado, A. Georgiadis, ‘A Proximity Wireless Sensor Based on Backscatter Communication,’  in Proc. ACES Florence, Italy, 26-30 Mar 2017.
  10. F. Bolos, D. Belo and A. Georgiadis, "A UHF rectifier with one octave bandwidth based on a non-uniform transmission line," 2016 IEEE MTT-S International Microwave Symposium (IMS), San Francisco, CA, 2016, pp. 1-3.
  11. V. Palazzi et al., "Design of a ultra-compact low-power rectenna in paper substrate for energy harvesting in the Wi-Fi band," 2016 IEEE Wireless Power Transfer Conference (WPTC), Aveiro, 2016, pp. 1-4.
  12. S. N. Daskalakis, A. Georgiadis, A. Bletsas and C. Kalialakis, "Dual band RF harvesting with low-cost lossy substrate for low-power supply system," 2016 10th European Conference on Antennas and Propagation (EuCAP), Davos, 2016, pp. 1-4.


The Micrwoaves & Engineering Group enagage with schools and oversee a variety of exciting science and engineering experiments. Students can choose from the following fun activties (full descriptions of each activity will be uploaded soon!) 

  • Magnetic field lines
  • Magnets
  • Static Electricity
  • Conductive dough
  • Wireless power transmission
  • Light reflection
  • Kaleidoscope
  • Cat’s eye
  • Periscope
  • Looking into infinity
  • Light refraction
  • Water tank
  • Invisibility
  • Parabola
  • Hologram
  • 3D cinema
  • Illusions 

- Spinning disc illusion

  • Pixels
  • Colour filters
  • Colour mixing wheel
  • Stereo sound
  • Music box
  • Noise cancelling headphones
  • Talking strips
  • Talking cups
  • Write your own story or video explaining “If I was an engineer, I would…..”
  • Imagine original missions in space and explain what they will do, how they will look like,…
  • Explain simply science involved in space telecommunication
  • FM radio - By using USB sticks designed to receive TV students can utilise the built in antenna and receive FM radio by installing software on a computer and move along the RF spectrum in the waterfall...see below!

RF Spectrum

  • Build a simple dipole antenna - with a wine crock and some copper cables, and track planes by receiving their ADS-B signals (tutorial, need two additional programs: one for ads-b decoding, and one to plot the planes)
  • dipole antenna
  • Receive NOAA weather satellites slow-scan images - the receiving antenna is more complicated to build!! More to follow....but see the example image below!

NOAA satellite

  • Paper/carboard models of missions
  • Deploy a solar panel
  • Arts and Crafts: Learn about planets
  • Arts and Crafts: Create your space rocket
  • Arts and Crafts: Create your own satellite
  • Arts and Crafts: Star gazing
  • Topographical maps
  • Solar car





Hong Filters 1 Hong Circuits Hong Filters 2

The microwave and antenna engineering group at Heriot-Watt University is pioneering the analysis design and testing of active and passive high frequency electronic components, subsystems and systems that provide innovative solutions in:

- wireless terrestrial and satellite communication systems

- electromagnetic imaging and sensing systems

- medical, industrial and scientific applications of microwaves

PNA small

The group was established in 1971 by Prof. Joseph Helszjan and Prof. Alan Sangster both of whom delivered key innovations in areas such as ferrite circulators as well as travelling wave antennas. The group is presently led by Prof. Jia-Sheng Hong and has continued to deliver significant advances in the areas of microwave filters, frequency selective surfaces and antennas.

Presently the group is performing research in collaboration with several industrial partners (SELEX, EADS Astrium, Thales Alenia Space, Huwaei, Bell Labs Alacatel-Lucent, BSC Filters, Space Engineering and others) with live grant value in excess of 1M from various governmental agencies (EPSRC, FP7, ESA, Royal Academy of Engineering) and industry.

In these pages you can find further information about our group and research. We would be happy to hear from you, please contact us at j.hong@hw.ac.uk.

© ESA/Planck Collaboration. Acknowledgment: M.-A. Miville-Deschênes, CNRS – Institut d’Astrophysique Spatiale, Université Paris-XI, Orsay, France.

Members of the Microwaves Research Group have taken part in a wide range fo Outreach activtites in the local community, with local schools and further afield. We hope that you enjoy reading the series of short articles below detailing many of the exciting Outreacxh activities our staff and students have parrticipated in... 

European researcher day/night (Explorathon)

Researchers night 2014 (PhD in an hour)

josePicture1In August 2014, We participated in the Explorathlon 2014 through the PhD in an hour program. In this event Mr. Jose-Antonio Garcia-Perez, first year PhD student from the Electrical and Physical Sciences School of Heriot-Watt University, who is working with high frequency and mm-wave power amplifiers shared his findings and ground breaking ideas with other PhD students. He hosted the PhD in an hour session titled “Power combining techniques applied to power amplifiers for new communication systems”.



European Researchers’ Night (Explorathon 2015)

IEuroIeuro 2017

In our initiative to engage the public with our research, we showcased some of our research activity at the Grand Gallery Hall of the National Museum of Scotland on the 25th of September 2015. The drop-in demo theme was entitled  “Wireless Power Transfer” where we demonstrated how the group are adapting traditional electromagnetic concepts to wirelessly transmit power. In doing so, we can recharge electronic devices avoiding the need of cables, having to utilise 'wall plugs' and prevent the massive use of environmentally unfriendly batteries.

This event was part of the European Researchers' Night in Scotland (EXPLORATHON 2015) and brought academics, school pupils and the public togetherv one night across Europe to celebrate and present the best innovation and developments taking place across the EU. 

European Researchers’ Night (Explorathon 2016)

euro 2016









We had a strong presence at Edinburgh’s Explorathon 2016 where our researchers staffed as stand at the City of Edinburgh Methodist Church. In this event we shared our work on wireless technologies with the general public demonstrating a wireless power transmission using electromagnetic induction and contactless musical instrument enabled by radio technologies. It was great fun for us, the kids and of course, the mums and dads!

European Researchers’ Night (Explorathon 2017)


Dr. Carolina Mateo-Segura and Prof. George Goussetis together with several PhD students from the Microwave and Antenna Engineering Group in Heriot-Watt University, participated in Explorathon 2017. The day-long event was held at the WHALE ARTS Agency in Edinburghnand was as part of Explorathon European Researchers’ Night across Scotland. Here, we showcased our recent progress on both near and far-field wireless power transmission devices based on either electromagnetic coupling or high power antennas together with simple experiments of light and sound.  Click to view Photos from the event!

Science Festivals

Midlothian Science Festival


Dr. Carolina Mateo-Segura, has lead the participation on this year’s Midlothian Science Festival in Edinburgh. The Midlothian Science Festival has been running since 2012 showing that Science, Engineering and Technology is a key part of the Midlothian’s cultural identity. It infuses into all areas including their natural and historic environment, food and drink, health care and sporting achievements, and creative arts. The activity showcased at the Dalkeith Library and Arts Centre by the team was designed to inspire and engage visitors of all ages and background in science, engineering and technology. It was full of mind-blowing experiments to raise the aspirations of local children and cultivate the next generation of scientific/engineer explorers!

Edinburgh Science Festival

As part of the Edinburgh Science Festival, we will be showcasing their experiments in a series of events around Edinburgh – scheduled 14th of April 2018.

PROMOTING Women in engineering

Equal Gender Opportunities - Women’s lunch in ISSS


In order to promote gender equality Dr. Mateo-Segura and Mrs. Lynn Smith co-organised the Women in EECE/ISSS Networking lunch to celebrate the International Women’s Day (IWD) and the launch of women in EECE/ISSS network. 

Two events took place 2015 and plans to arrange formal and informal peer mentoring forl interested women in engineering was addressed with the aim to promote a strong, supportive culture within the sector. The first event in April was also attended by external female engineers from industry. In particular Ms. Maria Kelly and Dr. Karen Jane Gordon from SELEX ES.#

Aurora Leadership Development Programme


Dr. Carolina Mateo-Segura participated in 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.

Microwave Group and the Nuffield Research Placement Programme

Dr. Carolina Mateo-Segura supervised Miss Yik Yik Maryann Beh, a Nuffield Student from S6 Broughton High School in Edinburgh, through the Nuffield Research Placement Programme for two months during summer 2017. The programme is run by the Nuffield Foundation which funds research, analysis, and student programmes that advance educational opportunity and social well-being across the United Kingdom. The placements provide the opportunities for individual students, particularly those from disadvantaged backgrounds, to develop their skills and confidence in quantitative and scientific methods. Yik was involved in the development of an FMCW radar system together with a 2nd year student in EECE. During this time, she has gained basic skills of electronics, signal processing, and programming. All these experiences give her already a good taste of what an electrical engineering degree entails. A final event, where Yik Yik presented her work, was hold at the Royal College of Surgeons celebrated in Edinburgh at the end of the placement.

Engaging with Schools

engaging with schools

The microwave group engages with schools in fun Science Days. We have developed in the past four years a collection of light and sound experiments that we take to our partner schools to immerse primary students in a day full of exciting science and engineering experiments!

Events that we have already organised:

Pupils in Bruntsfield Primary School, Edinburgh, enjoyed a fun “Science Day”. More than 100 primary five pupils immersed themselves in a series of experiments with 12 researchers from Heriot-Watt's Microwave and Antenna Engineering Group. The day-long event was called ‘Waves: Light and Sound,' and allowed 9 and 10-year-olds to take part in a series of 25 practical and applied engineering experiments including how to make their own speaker and wireless power transmissions for battery charging. You can seem more on these experiments in our school activities and experiiments page!

Children need to see that a career in engineering is accessible for everyone, regardless of background or gender. We should all join forces to inspire the next generation of scientists and engineers.” “One of the highlights of the event was the reaction and excitement of the children who participated actively and engaged in all the activities.

Georgina (10 year old) a primary five pupil from Bruntsfield Primary School, said: “The Science day was really exciting because we learned about things we haven't done before like how sound travels, how light travels and how magnets work.”

Max (9 year old) said: “It was a good chance to get to learn something that you don't get taught in school normally because of all the equipment they had.”

Ms Carol Kyle, Headteacher of Bruntsfield Primary School, said: “This has been a wonderful opportuntiy to work in partnership with the university. The researchers designed experiments, with our staff, to complement our curriculum. Having the PhD students work with our children was both inspiring and engaging. It certainly challenged their thinking! I look forward to continuing this partnership.”