Urban Outdoor Measurement Study of Phased Antenna Array Impact on Millimeter-Wave Link Opportunities and Beam Misalignment

Grannemann, Lars; Ichkov, Aleksandar; Mähönen, Petri

doi:10.1109/twc.2020.3035683

Cited by 11 publications

(1 citation statement)

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“…Note that although we designed the D/A converter board to allow it to be extended to two channels, the BGT60 modules with integrated VCO [ 42 ] prohibit its direct use in a two-channel multiple input–multiple output (MIMO) scenario. Nevertheless, the described test-bed can serve as a two-channel transceiver, e.g., for research into the hot topic of user interference due to beam misalignment [ 53 ].…”

Section: Digital Predistortion Experiments On Modulated Waveformsmentioning

confidence: 99%

Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments

Pospíšil

Mars̆álek

Götthans

et al. 2021

Sensors

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Millimeter waves will play an important role in communication systems in the near future. On the one hand, the bandwidths available at millimeter-wave frequencies allow for elevated data rates, but on the other hand, the wide bandwidth accentuates the effects of wireless front-end impairments on transmitted waveforms and makes their compensation more difficult. Research into front-end impairment compensation in millimeter-wave frequency bands is currently being carried out, mainly using expensive laboratory setups consisting of universal signal generators, spectral analyzers and high-speed oscilloscopes. This paper presents a detailed description of an in-house built MATLAB-controlled 60 GHz measurement test-bed developed using relatively inexpensive hardware components that are available on the market and equipped with digital compensation for the most critical front-end impairments, including the digital predistortion of the power amplifier. It also demonstrates the potential of digital predistortion linearization on two distinct 60 GHz power amplifiers: one integrated in a direct-conversion transceiver and an external one with 24 dBm output power.

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Section: Digital Predistortion Experiments On Modulated Waveformsmentioning

confidence: 99%