Abstract
A compact frequency-reconfigurable multiple-input-multiple-output (MIMO) antenna on a laptop is proposed for multiband LTE services. Each MIMO antenna consists of two planar inverted-F antenna (PIFA) elements, using a T-shaped dc line and two p-i-n diodes (D1 and D2), in conjunction with the proximity-coupled feed structure. By effectively minimizing its dimension and its interference with antenna performance, the proposed T-shaped dc line is designed to fit within the proximity-coupled feed structure. The proposed MIMO antenna covers the LTE 17/13 bands (704-787 MHz, VSWR< 3) at State 1 (D1 and D2: on state), and the LTE 20/7 bands (791-862 MHz, 2500-2690 MHz, VSWR < 3) at State 2 (D1 and D2: off state). The proposed antenna obtains high isolation ( > 20 dB), low envelope correlation coefficient (ECC < 0.0161), and total efficiency of greater than 51%, for all operating frequency bands.
| Original language | English |
|---|---|
| Article number | 6860233 |
| Pages (from-to) | 1389-1392 |
| Number of pages | 4 |
| Journal | IEEE Antennas and Wireless Propagation Letters |
| Volume | 13 |
| DOIs | |
| State | Published - 2014 |
Keywords
- DC bias circuit
- frequency-reconfigurable antenna
- laptop application
- Long Term Evolution (LTE)
- multiband antenna
- multiple-input-multiple-output (MIMO) antenna