A Crooked U-Slot Dual-Band Antenna With Radial Stub Feeding

Author

Bae, Hyo Rim ; So, Soon One ; Cho, Choon Sik ; Lee, Jae W. ; Kim, Jaeheung

Author_Institution

Sch. of Electron., Telecommun. & Comput. Eng., Korea Aerosp. Univ., Goyang, South Korea

Volume

8

fYear

2009

fDate

7/1/1905 12:00:00 AM

Firstpage

1345

Lastpage

1348

Abstract

We propose a dual-band antenna using a crooked U-slot with radial stub feeding. This antenna has a simpler topology than other antennas designed for realizing dual-band characteristics. In addition, the proposed antenna adjusts to desired frequencies easily. The crooked U-slot made on the bottom layer provides the advantage of making impedance matching possible over a wide band at the low frequency, while the radial stub is used for feeding and also for providing additional resonance at the high frequency. The operating frequencies of the proposed antenna are chosen as 2.4 and 5.2 GHz, obtained by optimizing the physical dimensions of the crooked U-slot and radial stub. Measured results of return loss show -26.2 and -12.2 dB at 2.4 and 5.2 GHz, respectively. Measured gain is 0.47 and -1.97 dBi at 2.4 and 5.2 GHz, respectively.

Keywords

UHF antennas; impedance matching; microwave antennas; multifrequency antennas; slot antennas; crooked u-slot antenna; dual-band antenna; frequency 2.4 GHz; frequency 5.2 GHz; impedance matching; physical dimensions; radial stub feeding; Crooked U-slot; dual-band antenna; radial stub feeding;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2009.2038937

Filename

5356179