Quasioptical beam propagation for remote sensing

A development of millimeter waveband indoor sensors has brought new research challenges especially with respect to the sensing within complex environments. To investigate the propagation aspects for these systems the quasioptical approaches including Gaussian beams of basic and higher orders can be utilized. Difference between conventional and Gaussian beam based models can be significant especially for remote sensing systems being deployed within indoor scenarios. The paper discusses the advantages and drawback of these simulation approaches, based on measurement and analyses of electromagnetic wave propagation.