Title :
A PIFA-Type Varactor-Tunable Slim Antenna With a PIL Patch Feed for Multiband Applications
Author :
Oh, Se-keun ; Yoon, Hyung-Sik ; Park, Seong-Ook
Author_Institution :
Sch. of Eng., Inf. & Commun. Univ., Daejeon
fDate :
6/29/1905 12:00:00 AM
Abstract :
A novel varactor-tuned compact multiband slim antenna for covering the digital cellular system (DCS; 1710-1880 MHz), personal communication service (PCS; 1850-1990 MHz), Universal Mobile Telecommunications System (UMTS; 1900-2200 MHz), WiBro (2300-2390 MHz), and wireless LAN (WLAN; 5150-5350 and 5725-5850 MHz) bands is presented. The proposed antenna consists of a main patch and a planar inverted-L (PIL) patch with a feed line for the broadband characteristic. A varactor diode is attached to the radiating element for frequency shift. This antenna occupied in a total volume of 27 mm times 11 mm times 5 mm can be easily placed in commercial mobile handsets. The computer simulation technology (CST) microwave studio is used to design and optimize the antenna. We found good agreement between the simulated and measured results
Keywords :
3G mobile communication; UHF antennas; antenna feeds; antenna radiation patterns; broadband antennas; cellular radio; microstrip antennas; multifrequency antennas; personal communication networks; planar inverted-F antennas; varactors; wireless LAN; 1710 to 2390 MHz; 5150 to 5850 MHz; DCS; PCS; PIFA-type varactor-tunable slim antenna; PIL patch feed; UMTS; Universal Mobile Telecommunications System; WiBro; broadband characteristic; digital cellular system; feed line; multiband applications; multiband slim antenna; personal communication service; planar inverted-L patch; radiating element; varactor diode; wireless LAN; 3G mobile communication; Antenna feeds; Broadband antennas; Diodes; Distributed control; Frequency; Mobile antennas; Personal communication networks; Varactors; Wireless LAN; Broadband antenna; planar inverted-F-type antenna (PIFA); planar inverted-L (PIL); slim antenna; tunable antennas; varactor diode;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2007.893096
