A reconfigurable antenna using varactor diode for LTE MIMO Applications

Title
A reconfigurable antenna using varactor diode for LTE MIMO Applications
Authors
박효달
Keywords
reconfigurable antenna; varactor diode; long-termevolution; multiple-input multiple-output
Issue Date
2013
Publisher
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
Series/Report no.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS ; Vol55 no.5 Startpage 1141 Endpage 1145
Abstract
In this article, a mobile embedded antenna having tunable capacitance is proposed and the validity of the proposed solution was proved through design, fabrication, and measurement. The antenna can be applied to long-term evolution (LTE) as well as DCS/PCS/WCDMA bands being currently used. Antennas for the 4G mobile service are required to expand its bandwidth so that it includes both LTE band and other service bands. However, it is hard to obtain low-band characteristic due to the limited space for antenna in terminals. The proposed antenna consists of two planar inverted F antennas that are orthogonally arranged. Two radiators should be designed to have equal or enhanced isolation (S21) of lower than 15 dB. To meet this requirement, a varactor diode SMV2109 (skyworks corp.) was used to make the operation frequency of low-band tunable. With the optimized parameters, the antenna was fabricated and measured and the results have been compared with the simulated result. The antenna satisfied with operation frequency and performance for both low-band and high-band, and measured performance of the antenna fabricated with optimized parameters is compared and analyzed with the simulation results.
URI
http://dspace.inha.ac.kr/handle/10505/34301
ISSN
0895-2477
Appears in Collections:
College of Engineering(공과대학) > Electronic Engineering (전자공학) > Local Access Journals, Paper, Reports (전자공학 논문, 보고서)

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