NDLI: Effect of radiation surface error in multi-scales on planar waveguide slotted arrays in Ku-band

Content Provider	IET Digital Library
Author	Li, Na
Abstract	This paper investigates effect of radiation surface error on the electrical properties of waveguide slotted arrays. For the waveguide slotted arrays working in Ku band, the radiation surface error caused by exterior loads and processing contains three components in different scales. Power spectrum conversion and Gaussian filtering are applied to error components separation, and three kinds of statistical models are introduced for error modelling. The multi-scale error model is obtained by weighted stacking. Based on the error model, effective mechanism formulations are developed with errors through the analysis of the positional difference of radiating slots in the aperture field. As a method of verification, an antenna prototype is manufactured and tested. A novel simulation method is proposed, which is tested by a contrast experiment on radiating surface's flatness. A comparison between results of the multi-scale error model and test data to the ideal case indicates that the proposed error model is closer to the test data. Influence degrees of all error components in different scales are compared and discussed. Reducing the error in the manufacturing process is an effective way to make sure the design accuracy of arrays, reduce production costs and shorten production cycles.
Starting Page	1022
Ending Page	1029
Page Count	8
ISSN	17518725
Volume Number	10
e-ISSN	17518733
Issue Number	Issue 10, Jul (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/10/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2015.0015
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2016-07-18
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Antenna Array Antenna Radiation Pattern Aperture Antenna Aperture Field Electrical Property Error Component Modelling Error Component Separation Filtering Method in Signal Processing Filtering Theory Gaussian Filtering Gaussian Processes Ku-band Multiscale Error Model Planar Waveguide Planar Waveguide Slotted Array Positional Difference Analysis Power Spectrum Conversion Production Cost Reduction Radiation Surface Error Effect Simulation Method Slot Antenna Array Statistical Analysis Statistical Model Statistics Waveguide And Microwave Transmission Line Weighted Stacking WSA
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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