Title :
A Cognitive Radio Reconfigurable MIMO and Sensing Antenna System
Author :
Hussain, Rifaqat ; Sharawi, Mohammad S.
Author_Institution :
Electr. Eng. Dept., King Fahd Univ. for Pet. & Miner. (KFUPM), Dhahran, Saudi Arabia
Abstract :
A planar, compact, single-substrate, multiband, frequency-reconfigurable multiple-input-multiple-output (MIMO) antenna system is presented. The proposed antenna elements are integrated with an ultrawideband (UWB) sensing antenna to develop a complete antenna platform for cognitive radio (CR) applications. The dual-element MIMO antenna is integrated with p-i-n and varactor diodes for frequency reconfigurability. Two modes of selection are used for the MIMO antenna system reconfigurability along with varactor tuning to sweep the frequency over a wide band especially below 1 GHz. The proposed sensing antenna is used to cover a wide range of frequency bands from 720 ~ 3440 MHz. The complete system comprising the multiband reconfigurable MIMO antennas and UWB sensing antenna for CR applications is proposed with a compact form factor. The antenna system is developed on a single substrate area of dimensions 65×120×1.56 mm3.
Keywords :
MIMO communication; cognitive radio; multifrequency antennas; p-i-n diodes; ultra wideband antennas; varactors; CR applications; UWB sensing antenna; cognitive radio reconfigurable MIMO system; dual-element MIMO antenna; frequency reconfigurability; frequency-reconfigurable antenna system; multiband antenna; multiple-input-multiple-output antenna system; p-i-n diodes; single-substrate antenna; varactor diodes; Antenna measurements; MIMO; Sensors; Ultra wideband antennas; Varactors; 4G wireless communication; antennas; cognitive radio; multiple-input–multiple-output (MIMO); ultrawideband;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2361450
