Basic characteristics of wideband sleeve antenna

Author

Oki, Takashi ; Nguyen, Tuan Hung ; Sakuma, Masao ; Morishita, Hisashi

Author_Institution

Dept. of Electr. & Electron. Eng., Nat. Defense Acad. of Japan, Yokosuka, Japan

fYear

2014

fDate

2-5 Dec. 2014

Firstpage

231

Lastpage

232

Abstract

Sleeve antenna is one typical antenna type that has a possibility of wideband characteristic. Until now, several types of sleeve antenna are introduced and investigated for obtaining a wider bandwidth than their original versions [1-5]. The most fundamental feature of sleeve antenna is that, a part of the exterior conductor with the length of λ/4 is removed from the coaxial cable, and only the thin interior conductor of this part is remained. With a sleeve added to the remained exterior surface of the coaxial cable. The operation bandwidth of a fundamental sleeve antenna is relatively narrow. In this study, we propose an effective impedance improvement technique for obtaining wideband characteristic of the fundamental sleeve antenna.

Keywords

broadband antennas; coaxial cables; conductors (electric); basic characteristics; coaxial cable; effective impedance improvement technique; exterior conductor surface; operation bandwidth; sleeve antenna; thin interior conductor; wideband characteristic; Antenna radiation patterns; Broadband antennas; Coaxial cables; Conductors; Resonant frequency; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (ISAP), 2014 International Symposium on

Conference_Location

Kaohsiung

Type

conf

DOI

10.1109/ISANP.2014.7026615

Filename

7026615