High Frequency Systems Laboratory

HFS lab members attended IEEE APS distinguished lecture by Prof. Zhongxiang Shen on March 26th, 2026 at our university KMUTNB. The topics of compact, wideband antenna and frequency selective, angle selective, power level selective metastructures aligned excellently with our lab's activities and interest. Prof. Shen's lectures are very inspiring and crystal clear. Teaching is a very crucial element of scientific research. Great lectures inspire young scientists and remind them about the pleasure of their research area. We would like to thank IEEE APS for enabling the distinguished lectures and iDEMT, KMUTNB and IEEE MTT/AP Thailand section for the organization of such a wonderful event.

The most important product of our lab is the future of our people.

"Learning is the real superpower to choose your future"

Hein Htet Kyaw, our master student presented his master thesis proposal yesterday. His work focusses on investigation of alternative conductive materials and methods to create the conductive patterns on various substrates. This research topic is extremely important for the future of green and environmental friendly electronic components.

At HFS, we believe in the power of knowledge and collaborative learning.

Once HFS, always HFS

Today Dr. Ake Apichart, the R&D Manager of Thai Technoglass Group PLC visited HFS lab to discuss participation in a research exhibition from the Glassense project. Dr. Apichart is alumnus of our HFS lab who brought the glass-based electronics as a great research topic to our lab. Glassense proposes an innovative way to integrate smart sensors in laminated glass panels enabling exciting applications for smart cities. Countless publications of our lab in the past recent years originate from this project with many Alumni graduated their master's and PhD degrees.

We are pleased to keep collaborating with Dr. Apichart in the future.

Digitizing Unknown Liquids – A Game Changer for Chemical, Food, and Medical Laboratories
At HFS, we are committed to developing affordable material and liquid characterization tools for chemical, food, environmental, and medical laboratories. Our platform is based on a cavity resonator — a well-established technique in the microwave engineering community. While cavity resonators are familiar tools in RF and microwave research, applying them to chemical, biological, and food laboratories opens up exciting new possibilities. What is conventional in microwave engineering can be transformative in other scientific fields.
Importantly, 3D printing technology and low cost measurement equipment make this innovation flexible and scalable. Additive manufacturing enables rapid prototyping of customized resonator structures, reduces fabrication costs, and allows seamless integration with standard lab equipment such as centrifuge tubes, test tubes, and common laboratory glassware.
Our technology enables researchers to:
• Measure concentration levels
• Monitor chemical reactions in real time
• Assess food quality
• Track cell growth in culture wells
The system is easy to use and highly adaptable across a wide range of applications. This publication is the result of collaborative research supported by a PhD scholarship from NSTDA and KMUTNB.
📎 The full research article is available via the attached link.
Our sincere thanks to our PhD scholar and all co-authors for their valuable contributions. If you are interested in collaboration or exploring applications for your laboratory, please feel free to contact us.
Special thanks to CADFEM Thailand, our industrial partner, for sponsoring the Ansys HFSS license that supported this research.

Ethanol Concentration Sensing Using a 3D-Printed Microwave Cavity Resonator This work presents microwave sensing of ethanol concentration in ethanol–water mixtures using a low-cost 3D-printed cavity resonator. The objective is to realize a customizable liquid sensor that combines high measurement accuracy with inexpensive, in-house fabrication. The cylindrical cavity is f...

Old tradition, new faces.

Every Friday after our lab meeting, we continue the HFS lab tradition of taking turns to host lunch for the team. With many PhD students graduating last semester—and a few more this semester—it truly feels like a season of transition.

We’re delighted to welcome our new master’s students, Kyaw and Kaung, as the newest members of the HFS lab.

Today, we were also honored to host Khun Jitsupa from Dexon Technology, who joined us to discuss potential joint research collaborations on Non-Destructive Testing (NDT) for oil and gas pipelines. Dexon is an impressive technology company based in Rayong, Thailand, with outstanding international R&D teams—a true hidden gem of Thai industry.

We’re very much looking forward to working together in the near future!

The IEEE APS Fellowship Grant of our HFS lab member Muhammad Uzair is officially announced on the IEEE APS Website.

Once again, congratulations!

IEEE Antennas and Propagation Society Founded in 1949, the IEEE Antennas and Propagation Society is an international organization active in over 40 countries.

We are hiring!

High Frequency Systems Laboratory มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ
รับสมัครผู้ช่วยวิจัยวุฒิ ป.ตรี/ป.โท หัวข้อเซนเซอร์คลื่นแม่เหล็กไฟฟ้าและ IoT

สิทธิประโยชน์

• ประสบการณ์งาน R&D ในสายเซนเซอร์และ IoT
• ทุนการศึกษาระดับปริญญาโทหรือเอก สำหรับผู้มีคุณสมบัติเหมาะสม
• พัฒนาทักษะภาษาอังกฤษจากการทำงานร่วมกับนักวิจัยต่างชาติ
• โอกาสทำโครงการวิจัยกับพาร์ตเนอร์อุตสาหกรรมและต่างประเทศ
• โอกาสไปทำวิจัยในต่างประเทศ
• เพิ่มเงินเดือนเมื่อตัดสินใจเรียนต่อและผ่านการคัดเลือกเรียนป.โท หรือป.เอก
• เครือข่ายและคอนเนคชั่นสำหรับการทำงานหลังจบการศึกษา

หน้าที่ความรับผิดชอบ

• เรียนรู้การใช้งานและบำรุงรักษาเครื่องมือต่างๆ
• ออกแบบสายอากาศและเซนเซอร์คลื่นแม่เหล็กไฟฟ้า
• เขียนโปรแกรมควบคุมระบบเซนเซอร์
• ประสานงานเรื่องต่างๆ กับนักวิจัยภายใน Lab
• ช่วยงานด้านการบริหารจัดการ
• งานอื่นๆ ที่ได้รับมอบหมาย

คุณสมบัติผู้สมัคร

• จบการศึกษาระดับปริญญาตรีหรือปริญญาโทในสาขาวิศวกรรมไฟฟ้า วิศวกรรมอิเล็กทรอนิกส์ วิศวกรรมโทรคมนาคม วิศวกรรมแมคคาทรอนิกส์ หรือสาขาที่เกี่ยวข้อง
• เกรดเฉลี่ยสะสมไม่ต่ำกว่า 2.75 (สำหรับตำแหน่งป.ตรี) หรือ 3.25 (สำหรับตำแหน่งป.โท)
• สำหรับตำแหน่งป.ตรี ต้องมีประสบการณ์การทำงานอย่างน้อย 1 ปี
• มีประสบการณ์อย่างน้อยหนึ่งด้านต่อไปนี้:
1. การใช้โปรแกรม Ansys HFSS หรือ CST
2. การใช้เครื่อง 3D Printer หรือ CNC
3. Embedded Programming
• หากมีผลสอบ IELTS หรือ TOEFL จะพิจารณาเป็นพิเศษ

สมัครโดยส่ง CV มาที่ [email protected]

HFS has received a wonderful Christmas gift 🎄. Our lab member, Muhammad Uzair, has been awarded the prestigious IEEE Antennas and Propagation Society (APS) Fellowship. This is truly great news for our lab as we close out 2025.

Congratulations to Muhammad on his hard work—this recognition is truly well deserved.

To young researchers around the world: wherever you are working, keep your passion strong and continue striving for excellence in your research. If a small lab in Thailand can receive this fellowship, your opportunity will come as well.

Last but not least, we sincerely thank the IEEE Antennas and Propagation Society for this honor and for its commitment to equal opportunities. This recognition truly means a lot to us.

🎄 Merry Christmas and Happy New Year 2026! 🎆

The High Frequency Systems Laboratory HFS would like to extend our warmest wishes to all our partners, collaborators, alumni, and supporters. Thank you for your continued trust, encouragement, and collaboration throughout the year.

We would also like to express our sincere appreciation to all HFS members and students for your hard work, dedication, and commitment. Your contributions have been essential in fostering an innovative research ecosystem and in building knowledge together.

Thanks to your efforts, 2025 has been a successful year for HFS, marked by exciting projects, strong collaborations, and impactful publications.

As we step into the new year, we look forward to continuing our journey together, strengthening existing partnerships, and creating new opportunities in the years ahead.

✨ Wishing you a joyful holiday season and a productive, inspiring New Year 2026.

— High Frequency Systems Laboratory (HFS)

HFS has been participating in the European Conference on Antennas and Propagation (EuCAP) since EuCAP 2017 in Paris. We are excited to continue this tradition at EuCAP 2026 in Dublin, where we will present our paper titled "Circularly Polarized On-Glass Bidirectional Antenna for UHF RFID Applications". EuCAP is one of the premier and most exciting antenna and propagation conferences worldwide.

If you are an antenna engineer, you should go to EuCAP at least once! See you in April 2026 in Dublin!