Title :
A Performance Investigation of an Internal Quad-Band Antenna With Double-Spiral Structures
Author :
Choi, Jun-Sik ; Kang, Kyung K. ; Lee, Jae W. ; Cho, Choon Sik ; Kim, Jaeheung
Author_Institution :
Div. of Mobile Commun., Samsung, Gyeongbuk
Abstract :
This letter describes a design of an internal quad-band antenna resonating at cellular (824~894 MHz), DCS/PCS (1710~1880 MHz/1850~1990 MHz), and WiBro (wireless broadband Internet, 2300~2390 MHzs) system band by inserting the spiral slits corresponding to the resonant frequencies. In order to accomplish this goal, double-spiral structures are suggested and analyzed by using a commercially available software package based on the finite-difference time-domain (FDTD) algorithm and basic equation for fundamental resonant frequency. In addition to that, the experimental results are compared with the predicted data obtained from the software package, CST MW Studio by considering the criterion of VSWR as 3:1. The proposed antenna and substrate are so small that they can be mounted and packaged in mobile phones. The measured radiation patterns are in good agreement with simulated results
Keywords :
Internet; UHF antennas; antenna radiation patterns; broadband networks; cellular radio; finite difference time-domain analysis; mobile antennas; multifrequency antennas; personal communication networks; spiral antennas; telecommunication computing; 1710 to 1880 MHz; 1850 to 1990 MHz; 2300 to 2390 MHz; 824 to 894 MHz; CST MW Studio; DCS-PCS system band; VSWR; WiBro system band; cellular system band; double-spiral structures; finite-difference time-domain algorithm; fundamental resonant frequency; internal quad-band antenna design; mobile phones; radiation patterns; software package; spiral slits; wireless broadband Internet; Algorithm design and analysis; Broadband antennas; Distributed control; Finite difference methods; Internet; Personal communication networks; Resonant frequency; Software packages; Spirals; Time domain analysis; PIFA; Wireless Broadband Internet (WiBro); quad-band; spiral structures;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2006.889555
