研究目的
Extending the high data-rate capacity of optical fiber transmission to wireless devices requires greatly increased carrier frequencies. This paper describes how photonic techniques can enable ultrahigh capacity wireless data distribution and transmission using signals at millimeter-wave and TeraHertz (THz) frequencies.
研究成果
The use of the THz spectral region for wireless communications offers the possibility to achieve transmission rates comparable to those achieved in wired local area networks. However, the properties of the free space channel require different approaches to those adopted for lower frequency lower capacity systems. Future work will be needed on the development of low cost electronic technologies for mobile units and on the development of active antenna array technology to give the required antenna gain and beam-steering capabilities for THz wireless over fiber systems.
研究不足
The paper notes the challenges of THz wireless communication, including high free-space path loss and absorption due to water vapor, which limit the range of THz wireless systems. It also discusses the need for high-gain antennas and the limitations of current photonic and electronic technologies in achieving high power and efficiency at THz frequencies.
