Two-rectangular-printed-spiral antenna with U-strip

Author

Phaebua, Kittisak ; Phongcharoenpanich, Chuwong ; Torrungrueng, Danai ; Chinrungrueng, Jatuporn

Author_Institution

Fac. of Eng. & Res., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok

fYear

2008

fDate

5-11 July 2008

Firstpage

1

Lastpage

4

Abstract

The two-rectangular-printed-spiral antenna with U-strip is proposed. The increasing electrical length and impedance matching is performed by using two spiral arms and adding U-strip. There is no ground plane for this antenna structure. The size is relatively small. The measured return loss is -12.435 dB at 433 MHz with 5.455 % bandwidth (428-452 MHz). The measured absolute gain is about -5 dBi. The performance of this small antenna is efficient for many wireless applications especially wireless sensor networks of ITS.

Keywords

impedance matching; microstrip antennas; spiral antennas; wireless sensor networks; U-strip; electrical length; impedance matching; two-rectangular-printed-spiral antenna; wireless applications; wireless sensor networks; Bandwidth; Communication system traffic control; Costs; Dielectric substrates; Frequency; Monitoring; Roads; Sensor systems; Spirals; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE

Conference_Location

San Diego, CA

Print_ISBN

978-1-4244-2041-4

Electronic_ISBN

978-1-4244-2042-1

Type

conf

DOI

10.1109/APS.2008.4619486

Filename

4619486