Broadside subwavelength microstrip antennas partially loaded with metamaterials

K. S. Zheng, Wai Yip Tam, D. B. Ge

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

10 Citations (Scopus)

Abstract

A new designing for solving zero radiation problem of subwavelength microstrip antenna at broadside loaded with double-positive material and double-negative metamaterials is presented. The subwavelength rectangular microstrip antenna does not radiate efficiently at broadside because of the radiation from the two radiating edges cancels each other. So, the new structure of subwavelength microstrip antenna array made of two identical subwavelength rectangular microstrip antenna partially filled with metamaterials is proposed and studied. Due to the phase compensation properties of double-negative metamaterials, arbitrarily low resonant frequency can be also obtained for a fixed dimension for the proposed antenna array. And, two elements for the new antenna array are aligned regularly along the coordinates and the phase difference between the excitation sources of two-element subwavelength antenna array is set to a special value π. With this scheme, the radiation of antenna array at broadside in the direction normal to the radiator and the ground plane is clearly enhanced by comparing radiation patterns between the subwavelength microstrip antenna and the subwavelength antenna array.
Original languageEnglish
Title of host publicationMETA08 - Proceedings of the 2008 International Workshop on Metamaterials
Pages39-42
Number of pages4
DOIs
Publication statusPublished - 1 Dec 2008
Event2008 International Workshop on Metamaterials, META08 - Nanjing, China
Duration: 9 Nov 200812 Nov 2008

Conference

Conference2008 International Workshop on Metamaterials, META08
CountryChina
CityNanjing
Period9/11/0812/11/08

ASJC Scopus subject areas

  • Mechanics of Materials
  • Computational Mechanics

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