Design of Frequency- and Pattern-Reconfigurable Wideband Slot Antenna

A wideband slot antenna with frequency- and pattern-reconfigurable characteristics for TD-LTE (3.4–3.8 GHz) and C-band (3.7–4.2 GHz) applications is proposed. The antenna consists of two symmetric slots that are fed by a fork-shaped microstrip line. Two PIN diodes are loaded in the slots to produce two different frequency bands. Meanwhile, two additional PIN diodes are inserted in the feed line to achieve the pattern reconfigurability. The wideband operation is realized by using the symmetric slots and fork-shaped feed line. Simulated and measured results show that the antenna provides 25° and 20° beam-steering in 3.4–3.8 and 3.7–4.2 GHz bands, respectively. Also, an impedance bandwidth of at least 12.8% is obtained in the operating bands.

[1]  Ahmed M. Eltawil,et al.  Reduced Overhead Training for Multi Reconfigurable Antennas with Beam-Tilting Capability , 2010, IEEE Transactions on Wireless Communications.

[2]  J.T. Bernhard,et al.  A novel radiation pattern and frequency reconfigurable single turn square spiral microstrip antenna , 2003, IEEE Microwave and Wireless Components Letters.

[3]  Anguo Wang,et al.  A Novel Planar Parasitic Array Antenna With Frequency- and Pattern-Reconfigurable Characteristics , 2014, IEEE Antennas and Wireless Propagation Letters.

[4]  P. Rezaei,et al.  Design of a Reconfigurable Miniaturized Microstrip Antenna for Switchable Multiband Systems , 2016, IEEE Antennas and Wireless Propagation Letters.

[5]  Quan Wang,et al.  Frequency- and Pattern-Reconfigurable Antenna for Multistandard Wireless Applications , 2015, IEEE Antennas and Wireless Propagation Letters.

[6]  Rashid Mehmood,et al.  Interference suppression using parasitic reconfigurable aperture (RECAP) antennas , 2011, 2011 International Workshop on Antenna Technology (iWAT).

[7]  Akram Alomainy,et al.  Pattern-Reconfigurable Planar Circular Ultra-Wideband Monopole Antenna , 2013, IEEE Transactions on Antennas and Propagation.

[8]  S. W. Lee,et al.  Compact Frequency Reconfigurable Antenna for LTE/WWAN Mobile Handset Applications , 2015, IEEE Transactions on Antennas and Propagation.

[9]  Fan Yang,et al.  A Patch Antenna With a Varactor-Loaded Slot for Reconfigurable Dual-Band Operation , 2015, IEEE Transactions on Antennas and Propagation.

[10]  M. F. Ismail,et al.  Frequency and Pattern Reconfigurable Slot Antenna , 2014, IEEE Transactions on Antennas and Propagation.

[11]  A. L. Yusof,et al.  Aperture-Coupled Frequency and Patterns Reconfigurable Microstrip Stacked Array Antenna , 2015, IEEE Transactions on Antennas and Propagation.

[12]  Ian F. Akyildiz,et al.  NeXt generation/dynamic spectrum access/cognitive radio wireless networks: A survey , 2006, Comput. Networks.

[13]  Ahmed M. Eltawil,et al.  A Beam-Steering Reconfigurable Antenna for WLAN Applications , 2015, IEEE Transactions on Antennas and Propagation.

[14]  Shaoqiu Xiao,et al.  Varactor-Loaded Pattern Reconfigurable Array for Wide-Angle Scanning With Low Gain Fluctuation , 2015, IEEE Transactions on Antennas and Propagation.

[15]  Liping Han,et al.  Compact Frequency-Reconfigurable Slot Antenna for Wireless Applications , 2016, IEEE Antennas and Wireless Propagation Letters.