A Miniature Circular Disc Monopole UWB Antenna with a Tapered Feed Line and a Circular Ground

Author

Zhang, Yangjun ; Nakata, Tomonori ; Miyashita, Toyokatsu

Author_Institution

Dept. of Electron. & Inf., Ryukoku Univ., Ohtsu

fYear

2008

fDate

10-12 Sept. 2008

Firstpage

411

Lastpage

414

Abstract

In this paper, a miniature circular disc monopole UWB antenna implemented on a FR-4 substrate was proposed. The proposed antenna uses a novel designed microstrip feed line and an improved ground shape. The size of total antenna is about 40 times 30 mm², and the radius of radiation element is 6 mm. Both the radiation element and the whole antenna are much smaller than the conventional antenna with a uniform feed line and a square ground. The simulated and measured results show that a good impedance matching over UWB band (3.1-10.6 GHz) was realized. An omnidirectional radiation pattern and gain characteristics of the proposed antenna are given.

Keywords

antenna radiation patterns; microstrip lines; microwave antennas; monopole antennas; ultra wideband antennas; FR-4 substrate; circular ground; frequency 3.1 GHz to 10.6 GHz; microstrip feed line; microwave antennas; miniature circular disc monopole UWB antenna; omnidirectional radiation pattern; radiation element; square ground; tapered feed line; Antenna feeds; Antenna measurements; Bandwidth; Frequency; Impedance matching; Informatics; Microstrip antennas; Receiving antennas; Shape measurement; Ultra wideband antennas; circular disc monopole antenna; ground; miniature; taped microstrip feed line; ultrawideband (UWB);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008 China-Japan Joint

Conference_Location

Shanghai

Print_ISBN

978-1-4244-3821-1

Type

conf

DOI

10.1109/CJMW.2008.4772457

Filename

4772457