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Master Thesis: Lightly Steerable Antennas

Job Description

Date: Nov 7, 2019

Do you want to do your thesis with us in Göteborg? 

Would you like the chance to do your thesis together with one of the world’s leading technology companies? We are on a quest to enable communication for everyone and everything and we believe that we do that by being as innovative as possible. If you want to help us to be even more innovative – then you are on the right track! 

 

We want you to become a part of a truly global company working across borders in 180 countries, offering a diverse, performance-driven culture & an innovative & engaging environment where employees enhance their potential every day. Come and learn and grow with us at Ericsson. 

 

Master Thesis Project Description

Point to point microwave links are widely used in mobile backhaul as a fast, affordable and reliable way to connect radio base stations to the core network. Deployment of, and preparation for, 5G technology in the access network drives capacity requirements. Spectrum for high capacity microwave links is largely found in the 70/80 GHz E-band. Overcoming equipment and radio propagation limitations in these high frequency bands, makes the use of high gain, narrow beam, antennas desirable. This creates new challenges regarding antenna alignment. Beam scanning would be a possible counter measure. The problem is somewhat different from beam forming and spatial multiplexing in the access network. A rather small deflection is required to maintain alignment and only one simultaneous beam is needed. The main challenge is to preserve the high antenna gain and comply to antenna mask requirements while scanning the beam. 

 

The objective of this thesis is to theoretically and practically investigate different setups using phased array antenna technology for achieving limited scan capability in point to point microwave link antennas. 

 

The work should include the following steps:

Literature study 

Figures of merit definition 

Theoretical study covering at least the following setups 

Limited scan Phased Array with few high gain antenna elements 

Phased Array direct antenna feeder 

Phased Array sub reflector antenna feeder 

Simulations of the different setups 

Verification of simulation results through measurements on one or more promising concepts 
 
The study shall also take feasibility aspects like cost, complexity etc. into account. 
 
The study will be conducted under Ericsson’s main responsibility and in collaboration with, and the support of, Chalmers Antenna Research Group and Gapwaves AB. 
 

Requirements and key qualifications 

Genuine interest in product development 

Good communication and collaboration skills 

Familiar with different microwave antenna technologies, different types of high gain reflector antennas and phased array antennas 

Good knowledge of antenna requirements and figures of merit 

Skills in antenna theory, experienced in using simulation tools and doing theoretical calculations. 

Experience of doing lab measurement of antennas 
 
We believe this thesis is done by one student.
 

Application 
If you feel interested, please send in your application as soon as possible. The start date can be adjusted to both your and the business needs – the intention is to start in January or February 2020. 
While applying please attach your updated CV, current grades and cover letter written in English into one document (under CV field in the application tool) and clearly define your technical knowledge.

If you have any questions, please reach out to Manager - Daniel Gillén at daniel.gillen@ericsson.com or Recruiter Elzbieta Penpeska at elzbieta.penpeska@ericsson.com

 
To be a driver of global transformation is in our DNA and we use innovation to empower people, business and society. Through our technological leadership, global presence and the empowerment we provide to our employees, we offer enormous opportunities to change people's lives and the world we live in. 
We welcome the opportunity to meet you! 

 

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Primary country and city: Sweden (SE) || || Göteborg || Stud&YP

Req ID: 304372