NDLI: Design of dual-band wide-angle RF/IR beam combiner based on impedance matching

Content Provider	IET Digital Library
Author	Hao, Kaizi Li, Zhuo Wang, Xin Yang, Suhui Wang, Yiting Xu, Chang Zhou, Lang Gao, Yanze
Abstract	A radiofrequency (RF)/infrared (IR) beam combiner is used to combine IR signals and RF signals into a common transmission axis. In this study, a dual-band wide-angle RF/IR beam combiner with high RF transmission and IR reflection was proposed. Based on the impedance matching principle, the RF/IR beam combiner consisted of a high reflective IR film, an IR substrate, and two RF matching layers. Multi-objective particle swarm algorithm was applied to optimise the relative permittivity and the thicknesses of the IR substrate and the RF matching layers. A higher than 75% RF transmittance was obtained in both 8–12 GHz and 34–36 GHz bands when the RF incident angle was varied from 30° to 62°. At the same time, the reflectance in 8–12 μm was as high as 96%. It could be used in the hardware-in-the-loop simulation systems to test and evaluate the detecting and tracing performances of the RF/IR dual-mode guidance devices.
Starting Page	7
Ending Page	14
Page Count	8
ISSN	17518725
Volume Number	14
e-ISSN	17518733
Issue Number	Issue 1, Jan (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/14/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2019.0230
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2019-08-27
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Common Transmission Axis Frequency 34.0 GHz to 36.0 GHz Frequency 8.0 GHz to 12.0 GHz Frequency Selective Surface Hardware-in-the-loop Simulation System High Reflective IR Film High RF Transmission Impedance Matching Infrared Detector IR Reflection IR Signal IR Substrate Microwave Material Missile Guidance Optical Radar Optical Tracking Optimisation Technique Particle Swarm Optimisation PhotoDetector Photonic Technology Relative Permittivity RF Incident Angle RF Matching Layer RF Signal RF Transmittance RF-IR Dual-mode Guidance Device Size 8.0 Mum to 12.0 Mum Tracing Performances
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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