HIGHLIGHTS
- who: Without Phase Pre-Coding and colleagues from the Chongqing University Posts and Telecommunications, Chongqing, China have published the research work: W-Band 8QAM Vector Millimeter-Wave Signal Generation Based on Tripling of Frequency Without Phase Pre-Coding, in the Journal: (JOURNAL)
- what: The authors propose a W-band 8-quadrature-amplitude-modulation (8QAM) frequency tripling photonic vector millimeter-wave (mm-wave) signal generation method by using a modulator (PM) with only amplitude
SUMMARY
But the millimeter wave has a short transmission distance in free space because of the high propagation . . .
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