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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:
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.
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 email@example.com or Recruiter Elzbieta Penpeska at firstname.lastname@example.org
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Primary country and city: Sweden (SE) || || Göteborg || Stud&YP
Req ID: 304372