Optimizing Q factor of square spiral antenna

Author

Asad, Muhammad ; Gilani, Junaid ; Khalid, Adnan ; Iqbal, Mian Shahzad

Author_Institution

Telecommun. Eng. Dept., Univ. of Eng. & Technol., Taxila, Pakistan

Volume

1

fYear

2010

fDate

1-2 Aug. 2010

Firstpage

227

Lastpage

230

Abstract

The main purpose of this paper is to design a 1-arm square spiral antenna with Q factor as low as possible to achieve higher bandwidths. The spiral made from material of 2.8 × 10⁷ Siemens/meter conductivity is printed over a dielectric material Rogers RT Duroid 5870 with permittivity 2.33, size 125 × 115 mm and thickness 0.5 mm. The operating center frequency of antenna is set to 2.45 GHz. HFSS (High Frequency Structural Simulator) is used for designing, analyzing and comparing different spiral antenna designs. Simulated results obtained from HFSS are compared at the end showing the desired results being achieved. The Q factor is lowered down to as low as 0.02 (absolute value) to achieve wide bandwidth.

Keywords

Q-factor; dielectric materials; spiral antennas; 1-arm square spiral antenna; HFSS; High Frequency Structural Simulator; Q factor optimization; Rogers RT Duroid 5870; bandwidths; dielectric material; frequency 2.45 GHz; operating center frequency; permittivity; size 115 mm; size 125 mm; 1-arm square spiral antenna; Lowering Q factor in square spiral antennas; Q factor in square spirals;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits,Communications and System (PACCS), 2010 Second Pacific-Asia Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-7969-6

Type

conf

DOI

10.1109/PACCS.2010.5626808

Filename

5626808