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

A 9 x 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.

Aperiodic array

Line-Of-Sight MIMO

slotted waveguide antenna

Compressive sensing

Author

Marianna Ivashina

Chalmers, Electrical Engineering, Communication and Antenna Systems, Antennas

Thomas Eriksson

Chalmers, Electrical Engineering

Robert Rehammar

Chalmers, Electrical Engineering, Communication and Antenna Systems, Antennas

Shi Lei

Chalmers, Electrical Engineering, Communication and Antenna Systems, Antennas

Carlo Bencivenni

Chalmers, Electrical Engineering, Communication and Antenna Systems, Antennas

Rob Maaskant

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

2019 IEEE INTERNATIONAL CONFERENCE ON MICROWAVES, ANTENNAS, COMMUNICATIONS AND ELECTRONIC SYSTEMS (COMCAS)

2150-895X (ISSN)

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

Subject Categories

Accelerator Physics and Instrumentation

Telecommunications

Signal Processing

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7/29/2020