Doctoral student in Nonlinear Power-Efficient Transmit Array Architecture

Karlstad University; Göteborgs kommun; On-site; SEK 362,808 - 434,573; Full time

Benefits offered by this job

Employee benefits

Access to state-of-the-art facilities

Collaborative research environment

Job summary

Karlstad University is seeking a Doctoral student in Nonlinear Power-Efficient Transmit Array Architecture located in Gothenburg. This position emphasizes collaboration in research focused on innovative transmitter design, requiring a solid background in Electrical Engineering and circuit design.

The role involves both independent research and departmental teaching activities, with access to state-of-the-art measurement facilities. You will develop and communicate your findings at academic conferences.

Qualifications

• Master's degree corresponding to at least 240 higher-education credits.
• Strong background in electronic circuit design.

Responsibilities

• Pursue doctoral studies including coursework and research.
• Develop scientific concepts and communicate results at conferences.
• Teaching duties will be included.

Skills

Strong written and verbal communication skills in English

Education

Master's degree in Electrical Engineering or related field

Tools

Cadence Virtuoso

MWO

Keysight ADS

SPICE

Matlab

Job description

Doctoral student in Nonlinear Power-Efficient Transmit Array Architecture

Our goal is to focus on competence, knowledge and collaboration in order to play an important, demonstrable role in social development.

Current transmitters are limited in terms of their bandwidth, energy efficiency and linearity. In this researchproject you will work on the intersectional area of antenna design, circuit design and signal processing toinvestigate novel nonlinear multi-antenna transmitters that overcome these limitations. By utilizing antennamutual coupling for effective amplitude modulation – a shift from the traditional view that considers it detrimental – you will overcome existing limitations in frequency, efficiency, power, and linearity, thereby fostering sustainable digital transformation.

About us

The position is hosted by the Microwave Electronics Laboratory at MC2 where you will have access to several commercial state-of-the art MMIC foundry processes and world-class measurement infrastructure allowing for a successful completion of this research project. At the Microwave Electronics laboratory currently 5 students pursue their Ph.D. in a similar area, which plenty of opportunity to collaborate and learn from and with peers.

About the research project

You will work in a complementary team to investigate a new transmitter topology. Your responsibility will be to design microwave components such as power amplifiers and antenna arrays but also derive the theory how to feed the individual amplifiers for the most energy efficient transmission in a certain direction. The goal is to develop a new scalable transmitter architecture that embraces mutual antenna coupling as a means of load modulation - allowing neighboring elements to efficiently create modulated signals similar to classical Chireix outphasing, but using the antenna aperture as combining element. The position is hosted at the department of Microtechnology and Nanoscience where you will have access to state of the art microwave measurement facilities at the Kollberg lab. The project is supported by collaboration agreements with semiconductor manufacturers that allow fabrication in CMOS, GaAs and GaN processes.

Who we are looking for

The following requirements are mandatory:

• To qualify as a PhD student, you must have a master's level degree* corresponding to at least 240 higher-education credits in Electrical Engineering, Communication Engineering, Engineering Physics, Computer Engineering or similar, with a strong background in electronic circuit design.
• Strong written and verbal communication skills in English.

You are able to take responsibility, show initiative, and work independently when needed. At the same time, you are a strong team player and enjoy collaborating across disciplines. You have the ability to communicate and disseminate research results effectively to different audiences, including academia, industry, and society.

*** for students with an education earned outside of Sweden, a 4-year Bachelor’s degree is accepted. ***

The following experience will strengthen your application:

• Experience in the design of integrated and high-frequency circuits as well as antennas is meritorious
• Specialization in wireless and/or wireless communication systems engineering and/or analog circuit design
• Advanced courses in microwave circuit design
• Advanced courses in signal processingExperience with Cadence Virtuoso, MWO, Keysight ADS, SPICE, Matlab.
• Experience with high frequency RF and measurement equipment
• Experience in building RF and microwave systems
• Experience in microwave and millimeter wave integrated circuit design
• Experience with digital signal processing.

What you will do

Your major responsibilities as Doctoral student is to pursue your own doctoral studies, including both coursework and research. You are expected to develop your own scientific concepts and communicate the results of your research verbally at international conferences and in writing (publishing in highly ranked journals). In addition, the position will normally include 20% departmental work, mostly teaching duties. The employment is limited to a maximum of five years.

Contract terms

• The Doctoral student positions are fully funded from start.
• The position is a fixed-term appointment of four years, with the possibility to teach up to 20%, which extends the position up to five years.
• A starting salary of 35,725 SEK per month (valid from May 1, 2026).
• Doctoral studies require physical presence throughout the entire study period. A valid residence permit must be presented by the study start date; otherwise the admission may be withdrawn.

What we offer

• As a Doctoral student at Chalmers, you are an employee and enjoy all employee benefits. Read more about working at Chalmers and our benefits for employees.
• A dynamic and inspiring working environment in the coastal city of Gothenburg.
• Read more about Sweden’s generous parental leave, subsidized day care, free schools, healthcare etc at Move To Gothenburg.

If Swedish is not your native language, Chalmers offers Swedish courses to help you settle in.

Find more general information about doctoral studies at Chalmers here.

Application procedure

The application should be written in English and attached as PDF-files, as below. Maximum size for each file is 40 MB. Please note that the system does not support Zip files.

CV

Personal letter

• A brief introduction about yourself.
• A brief motivation as to why you are interested in this position.

Bachelor’s and, if available, master’s thesis together with the transcripts.

Use the button at the foot of the page to reach the application form.
A background check may be conducted as part of the application process.
Please note: The applicant is responsible for ensuring that the application is complete. Incomplete applications and applications sent by email will not be considered. Contact details to references will be requested after the interview.

We welcome your application no later than August 16th 2026

*** Chalmers declines to consider all offers of further announcement publishing or other types of support for the recruiting process in connection with this position. ***

Chalmers University of Technology in Gothenburg conducts research and education in technology and natural sciences at a high international level. The university has 3100 employees and 10,000 students, and offers education in engineering, science, shipping and architecture. With scientific excellence as a basis, Chalmers promotes knowledge and technical solutions for a sustainable world. Through global commitment and entrepreneurship, we foster an innovative spirit, in close collaboration with wider society.
Chalmers was founded in 1829 and has the same motto today as it did then: Avancez – forward.

Job details

Title

Doctoral student in Nonlinear Power-Efficient Transmit Array Architecture

2026-08-16 23:59 (Europe/Stockholm)
2026-08-16 23:59 (CET)

Closing on: 2026-08-31 (Europe/Stockholm)

Closing on: 2026-07-26 (Europe/Stockholm)

Closing on: 2026-08-05 (Europe/Stockholm)

Closing on: 2026-08-17 (Europe/Stockholm)

Closing on: 2026-09-01 (Europe/Stockholm)

Closing on: 2026-08-16 (Europe/Stockholm)