Millimetre wave band time domain channel sounder

Vychodil, Josef; Pospíšil, Martin; Prokeš, Aleš; Blumenstein, Jiří

doi:10.1049/iet-com.2018.5453

Cited by 5 publications

(1 citation statement)

References 21 publications

(25 reference statements)

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“…Alternatively, some works have evaluated the performance of DPD using simulations or models scaled to lower frequency bands [36]. Some of the existing test-beds, such as our time-domain channel sounder [37], are able to process the wide bandwidths of several GHz, but without the capability of transmitting I/Q data, whereas other mm-wave setups allow for arbitrary I/Q data transmission, but with the bandwidths limited far below 100 MHz [15].…”

Section: Introductionmentioning

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: Introductionmentioning

confidence: 99%