A 1-D Steerable Beam Slotted Waveguide Antenna Employing Non-Conventional Aperiodic Array Architecture for mm-wave Line-Of-Sight MIMO
Paper in proceedings, 2019

Abstract—A 9×9 line-of-sight MIMO test setup is presented.
The slotted waveguide (WG) antenna as designed for this setup
achieves low side-lobe levels (SLLs) in all planes for multiple
scanned beams, while minimizing the loss in antenna efficiency
and bandwidth limitations. The aperiodic arrangement of several
parallel ridge WGs in the E-plane – each with a different
number of equally-spaced and equally-excited radiating slots
along the H-plane, and each possibly integrated with its own
TX/Rx module – has been optimized through a Compressive
Sensing approach. This results in 160 slots organized in 16
columns offering 29 dBi peak gain at a 27.5-31.5 GHz band with
a ±10◦ scan range in the E-plane for the ETSI Class-II-compliant
beams. The measurements of 12 identically beamformed antenna
prototypes for the broadside beam confirm the expected high
antenna efficiency (70–90%), and low input impedance mismatch
over the entire operating bandwidth.

Compressive sensing

Aperiodic array

Line-Of-Sight MIMO

slotted waveguide antenna

Author

Marianna Ivashina

Thomas Eriksson

Chalmers, Electrical Engineering, Communication and Antenna Systems, Communication Systems

Robert Rehammar

Shi Lei

Chalmers, Electrical Engineering, Communication and Antenna Systems, Antennas

Carlo Bencivenni

Rob Maaskant

Chalmers, Electrical Engineering, Communication and Antenna Systems

IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems

IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems
Tel Aviv, Israel,

Subject Categories

Accelerator Physics and Instrumentation

Other Physics Topics

Other Electrical Engineering, Electronic Engineering, Information Engineering

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