Simultaneous Frequency and Isolation Reconfigurable MIMO PIFA Using PIN Diodes

被引：61

作者：

Lim, Jong-Hyuk ^{[1
]}

Jin, Zhe-Jun ^{[1
]}

Song, Chang-Wook ^{[1
]}

Yun, Tae-Yeoul ^{[1
]}

机构：

[1] Hanyang Univ, Dept Elect & Comp Engn, Seoul 133791, South Korea

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2012年 / 60卷 / 12期

关键词：

Isolation; multiple input multiple output (MIMO); mutual coupling; planar inverted-F antenna (PIFA); PIN-diode; reconfigurable; ANTENNA DIVERSITY; ARRAY;

D O I：

10.1109/TAP.2012.2211552

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：5939 / 5946

页数：8

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