4.6 Article

Transmission Enhancement Methods for Low-Emissivity Glass at 5G mmWave Band

Journal

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 20, Issue 1, Pages 108-112

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2020.3042524

Keywords

5G communication; fixed wireless access (FWA); low-emissivity (low-E) window

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This study introduces methods for transmission enhancement of low-emissivity windows at millimeter wavelengths, utilizing low-pass filtering frequency selective surfaces and antireflection dielectrics to reduce transmission loss. The results show improved transmission loss for various types of windows and incident angles, as well as in a real FWA scenario for coverage extension.
This letter presents transmission enhancement methods for low-emissivity (low-E) windows at millimeter wavelength (mmWave) frequencies. These methods are required for installation of effective indoor customer premises equipment for mmWave fixed wireless access (FWA) services. Low-pass filtering frequency selective surfaces are patterned with low-E coatings by laser, and the effects are verified theoretically and experimentally. Antireflection (AR) dielectrics are additionally utilized and found to reduce transmission loss in various types of window regardless of frequency and incident angle. The results of the current study achieve lower losses for various types of window and incident angles. A transmission loss improvement is also achieved in a real FWA scenario, which can be applied for the coverage extension of FWA services.

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