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Simultaneous Frequency and Isolation Reconfigurable MIMO PIFA Using PIN Diodes

Title
Simultaneous Frequency and Isolation Reconfigurable MIMO PIFA Using PIN Diodes
Author
윤태열
Keywords
Isolation; multiple input multiple output (MIMO); mutual coupling; planar inverted-F antenna (PIFA); PIN-diode; reconfigurable
Issue Date
2012-12
Publisher
IEEE Institute of Electrical and Electronics Engineers
Citation
IEEE transactions on antennas and propagation, 2012, 60(12), P.5939-5946
Abstract
A reconfigurable multiple input multiple output (MIMO) planar inverted-F antenna (PIFA) is presented for three worldwide m-WiMAX bands: 2.3-2.4 GHz, 2.5-2.7 GHz, and 3.4-3.6 GHz. In order to achieve low mutual coupling, i.e., high isolation, a band-notched quarter-wave slot line on the ground plane is used between the two reconfigurable antennas. Two PIN-diodes are appropriately located on the slot line in order to electrically control the slot length. By adjusting both the PIN-diode biases for the reconfigurable antennas and the reconfigurable isolation slot, the proposed antenna simultaneously obtains the operating frequency and isolation reconfigurability for the three operating bands. A parametric analysis is performed to investigate optimized slot lengths for the three operation modes. All of the simulated results are confirmed with measurements. Measured isolation performance of greater than 30 dB improves the radiation efficiency, diversity gain, and channel capacity for all operating frequencies.
URI
http://ieeexplore.ieee.org/abstract/document/6259843/http://hdl.handle.net/20.500.11754/48440
ISSN
0018-926X
DOI
10.1109/TAP.2012.2211552
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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