Design of a leaf-shaped bowtie slot antenna electromagnetically fed by a microstrip line

Author

Yamamoto, Manabu ; Nojima, Toshio

Author_Institution

Grad. Sch. of Inf. Sci. & Technol., Hokkaido Univ. Kita, Sapporo, Japan

fYear

2014

fDate

2-5 Dec. 2014

Firstpage

261

Lastpage

262

Abstract

This paper presents a design of a wideband printed antenna being useful for ultra-wideband applications. In the designed antenna that operates over the frequency band of 7-10 GHz, a leaf-shaped bowtie slot antenna (LSBSA) is employed as a radiating element, and electromagnetic coupling feed based on a microstrip line is adopted for the excitation of the radiating element. In order to demonstrate the effective performance of the presented configuration, characteristics of the designed LSBSA are evaluated by the finite-difference time domain (FDTD) analysis. Over the above-mentioned frequency band, the simulated reflection coefficient is observed to be less than -10dB, and the maximum actual gain of 7.5dBi is obtained. Measured results are also presented in order to validate the simulated results.

Keywords

antenna feeds; antenna radiation patterns; bow-tie antennas; broadband antennas; finite difference time-domain analysis; microstrip antennas; microstrip lines; slot antennas; ultra wideband antennas; FDTD analysis; LSBSA; electromagnetic coupling feed; finite-difference time domain analysis; frequency 7 GHz to 10 GHz; leaf-shaped bowtie slot antenna design; microstrip line; radiating element excitation; reflection coefficient; ultrawideband antenna; wideband printed antenna; Antenna feeds; Dipole antennas; Microstrip; Microstrip antennas; Slot antennas; Ultra wideband antennas; UWB; electromagnetic coupling feed; printed antenna; slot antenna; wideband antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (ISAP), 2014 International Symposium on

Conference_Location

Kaohsiung

Type

conf

DOI

10.1109/ISANP.2014.7026630

Filename

7026630