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Frequency reconfigurable planar inverted-F antenna using switchable radiator and capacitive load

Title
Frequency reconfigurable planar inverted-F antenna using switchable radiator and capacitive load
Author
윤태열
Keywords
PIFA; DEVICES; Isolation; MIMO; mutual coupling; PIN-diode; reconfigurable; polarizaiton diversity; macro- and micro tuning
Issue Date
2013-07
Publisher
IET
Citation
IET Microwaves, Antennas and Propagation,2013,7(6),p430-435
Abstract
A frequency reconfigurable planar inverted-F antenna (PIFA) using real PIN-diodes is presented for mobile worldwide interoperability for microwave access (m-WiMAX) applications. This antenna not only alters the frequency band of the m-WiMAX using PIN-diode switching, but it also has a small profile using capacitive load within an FR4 dielectric constant substrate. The PIFA consists of the following: a main radiator, an additional radiator, a band-switchable capacitive load, two PIN-diodes and control circuits. One diode is placed between the main and additional radiator on the top side, and the other is vertically attached between the capacitive load and ground. Depending upon whether the diodes are on or off, the antenna operates over 2.3-2.4, 2.5-2.7 and 3.4-3.6 GHz for worldwide m-WiMAX bands. To investigate the effect of load capacitance, a parametric analysis is performed by sweeping the length and width of the capacitive load. All simulated and measured results for the proposed antenna are presented, and they show excellent agreement.
URI
http://digital-library.theiet.org/content/journals/10.1049/iet-map.2012.0236http://hdl.handle.net/20.500.11754/44172
ISSN
1751-8725
DOI
10.1049/iet-map.2012.0236
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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