Wideband L-probe patch antenna

Wideband L-probe patch antenna

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The two related feeding techniques, namely, the L-shaped probe and meandering probe (M-probe), for broadening the bandwidth of patch antenna are reviewed. The L-probe has a simple structure and wide bandwidth whereas the M-probe has low cross polarization and a symmetric radiation pattern within the operating frequencies. Design guidelines of the two kinds of patch antennas for Wi-Fi applications are presented. All the impedance bandwidths of the antennas were optimized to standing wave ratio (SWR) less than 1.5. The performance of the patch antennas with different patch height and aspect ratio is demonstrated. The performance of a wide M-probe fed patch antenna that has an impedance bandwidth of around 44% is presented. Finally, a review of various designs for different applications is discussed.

Chapter Contents:

  • 3.1 Introduction
  • 3.2 Basic characteristics
  • 3.2.1 L-probe feeding mechanism
  • 3.2.2 M-probe feeding mechanism
  • 3.3 Parametric studies
  • 3.3.1 Performance with different Ph
  • 3.3.2 Performance with different aspect ratio
  • 3.4 Development of L-probe and M-probe fed patch antenna
  • 3.4.1 Circular polarization
  • 3.4.2 Dual polarization
  • 3.4.3 Dual band
  • 3.4.4 Conformal ground plane
  • 3.4.5 Printed circuit board
  • 3.4.6 Fusion of the L-probe and M-probe in antenna design
  • 3.5 Conclusion
  • References

Inspec keywords: antenna radiation patterns; microstrip antennas; antenna feeds; probes; broadband antennas

Other keywords: two related feeding techniques; Wi-Fi applications; wide M-probe fed patch antenna; SWR; impedance bandwidths; meandering probe; symmetric radiation pattern; standing wave ratio; wide bandwidth; low cross polarization; wideband L-probe patch antenna

Subjects: Antenna accessories; Antenna theory; Single antennas

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