Summary
International Symposium on Antennas and Propagation
2008
Session Number:3C25
Session:
Number:3C25-2
Design of a Dual-band Planar Dipole Antenna with T-slit and Parasitic Elements for WLAN Applications
Wen-Shan Chen, Shih-Hung Cheng,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
Recently, there has been much research on broadband and multi-band antennas for various wireless communication systems. IEEE organization regulated the wireless local area network (WLAN, 802.11a/b) communication regulation since 1999. The development of WLAN has already reached quite maturity. And, it has been already quite universal in worldwide. It is extremely important that the development of the antenna used on the mobile communication devices. The printed dipole antenna [1, 2] has advantages of low profile, light weight and low cost. Further, it is very suitable for installation of the notebook computer. The dipole antenna [2] embedded a Ushaped slot in the two rectangular arms to produce two additional dipole arms. These two dipole arms enable the dipole antenna to generate a lower frequency resonance and a higher frequency resonance, respectively. Similarly, embedded the different shaped of slot into dipole antenna, it can produces two additional dipole arms [3, 4]. The parasitic elements on antenna it can be adjusted to enhance the impedance matching bandwidth [5-8]. In this design, we would like to confidently present a design of dipole antenna which embedded a T-shape slit on the antenna to generate dual-band operation. And, two parasitic elements are inserted on the back side of the dipole antenna to enhance the impedance bandwidth for WLAN application. We minimized the volume of antenna design as small as 5 × 47 × 0.8mm3 and simplified the antenna structure; furthermore it brings good radiation characteristics. As specification requirement, the bandwidth of fabricated dual-band antenna is covering from 2.2 to 2.62GHz and 5.15 to 6.43GHz.