Design and Analysis of Microstrip Patch Antenna for WLAN and Vehicular Communication

This paper presents the design and analysis of a dual-band circularly polarized (CP) microstrip patch antenna for WLAN and vehicular communication applications. In this antenna, an L-shaped slot is cut, and a square parasitic patch with diagonally opposite corners cut is loaded in offset beneath to monopole antenna to realize dual-band CP response with wideband response. The antenna exhibits dual-band CP response at 2.45 GHz (WLAN) and 5.9 GHz (Vehicular) having 20.45% and 15.73% of simulated impedance bandwidth and 6.84% and 14.16% of axial ratio bandwidth for WLAN and Vehicular band, respectively. The measured impedance bandwidth (S11 < −10 dB) is 19.43% and 12.73% for WLAN and vehicular band, respectively. The antenna design is simple and fabricated using an economical glass epoxy FR4 substrate with size of 45 × 40 mm2. The measured results are found in good agreement with simulated results. The proposed antenna is analyzed using transmission line equivalent circuits, and the details are presented and discussed.

[1]  S. X.  Circularly Polarized Antennas , 2014 .

[2]  Mate Boban,et al.  Vehicular Communications: Survey and Challenges of Channel and Propagation Models , 2015, IEEE Vehicular Technology Magazine.

[3]  Pascal Febvre,et al.  An Inexpensive Reconfigurable Planar Array for Wi-Fi Applications , 2012 .

[4]  F. Robol,et al.  Circularly polarized monopole hook antenna for ISM‐band systems , 2018 .

[5]  C. Y. D. Sim,et al.  A Single Layer Dual-Band CP Microstrip Antenna for GPS and DSRC Applications , 2008 .

[6]  Jamshed Aslam Ansari,et al.  Analysis of half E‐shaped patch for wideband application , 2009 .

[7]  Tommaso Isernia,et al.  Compact single‐layer circularly polarized antenna for short‐range communication systems , 2014 .

[8]  Seongmin Pyo,et al.  Circular polarization‐agile microstrip antenna for wireless access in vehicular environments , 2014 .

[9]  Luo Wei,et al.  Design of hexagon microstrip antenna for vehicle-to-vehicle communication , 2016 .

[10]  Tharek Abdul Rahman,et al.  An Equivalent Circuit Model for Broadband Modified Rectangular Microstrip-Fed Monopole Antenna , 2014, Wirel. Pers. Commun..

[11]  Hang Wong,et al.  Bandwidth Enhancement of a Monopolar Patch Antenna With V-Shaped Slot for Car-to-Car and WLAN Communications , 2016, IEEE Transactions on Vehicular Technology.

[12]  Daisuke Kanemoto,et al.  Circularly Polarized One-Sided Directional Slot Antenna With Reflector Metal for 5.8-GHz DSRC Operations , 2014, IEEE Antennas and Wireless Propagation Letters.

[13]  T. Moriyama,et al.  A COMPACT SWITCHED-BEAM PLANAR ANTENNA ARRAY FOR WIRELESS SENSORS OPERATING AT WI-FI BAND , 2018 .

[14]  Rowdra Ghatak,et al.  A Novel Tri-Band Hexagonal Microstrip Patch Antenna Using Modified Sierpinski Fractal for Vehicular Communication , 2015 .