Title

Adhd Classification Using Bag Of Words Approach On Network Features

Keywords

Microstrip patch; Mutual coupling; Reflectarray antenna; Unit cell; Waveguide simulator

Abstract

Effects of inter-element spacing on reflectarray unit cell design are studied in this paper. Reflectarray unit cells were commonly analyzed using a waveguide approach which assumed a fixed separation between identical elements in an infinite array. However, in practice, a reflectarray element can be surrounded by non-identical elements with variable distances. It is shown in this paper that the resonant frequency and reflection phase of the reflectarray element noticeably change with respect to different element spacing. A reflectarray unit cell is designed at 2.056 GHz. By changing the distance between the reflectarray elements from 0.33 to 0.68 0 in E plane and 0.33 to 0.78 0 in H plane, the resonant frequency is increased from 1.99 to 2.07 GHz (representing a 4% change) and the reflection phase is shifted by 200. To prove the concept, two 3 3 subarrays with different inter-element spacing are fabricated. The measurement results closely agree with simulated responses. The knowledge gained in this work can make the design of reflectarray antenna more accurate. © 2012 IEEE.

Publication Date

5-14-2012

Publication Title

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

Volume

8314

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.911598

Socpus ID

84860729444 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84860729444

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