Radiation efficiency improvement of low profile antenna with metamaterial structure using LCP substrate with low profile copper foil

Author

Inoue, Kazuhiro ; Higaki, Makoto ; Yamada, Akiko ; Obayashi, Shuichi ; Shoki, Hiroki ; Morooka, Tasuku

Author_Institution

Corp. R&D Center, Toshiba Corp., Japan

fYear

2010

fDate

11-17 July 2010

Firstpage

1

Lastpage

4

Abstract

EBG (Electromagnetic BandGap) structures have lately attracted considerable attention both for the surface wave suppression and low profile antennas. To achieve low profile antennas by using an EBG structure for the antenna substrate, the thinner EBG substrate as well as the smaller gap to the antenna above the EBG substrate is important. Furthermore, a smaller EBG substrate area is required to accommodate the antenna into small wireless equipments. We have proposed a small metamaterial structure by analogy with a mushroom-like EBG structure, which enables a dipole antenna just above the structure to match with 50Ω as well as EBG structures.

Keywords

antenna radiation patterns; dipole antennas; liquid crystal polymers; metamaterials; photonic band gap; LCP substrate; antenna substrate; dipole antenna; electromagnetic bandgap structures; liquid crystal polymers; low profile antenna; low profile copper foil; metamaterial structure; radiation efficiency; small wireless equipments; surface wave suppression; Antennas; Conductivity; Copper; Metamaterials; Periodic structures; Substrates; Surface roughness;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE

Conference_Location

Toronto, ON

ISSN

1522-3965

Print_ISBN

978-1-4244-4967-5

Type

conf

DOI

10.1109/APS.2010.5561193

Filename

5561193