In this chapter, we presented three different design methodologies for MMW antennas targeted to work at the upper bands of the 5G communications, namely, 57-64 GHz and 57-71 GHz, using PCB and PTH technologies. The key design philosophy is to employ available technologies and materials to the farthest extent and then make use of the design to satisfy the required specifications. The antennas are: wideband MMW ME dipole antennas, the HOM MMW patch antenna, and wideband MMW complementary source antennas.

Chapter Contents:

• 2.1 Wideband MMW ME dipole antennas
• 2.1.1 Single feed printed ME dipole antenna
• 2.1.1.1 Operating principles of the antenna
• 2.1.1.2 Measurement and results
• 2.1.2 Differential feed printed ME dipole antenna
• 2.1.2.1 Operating principle of the differentially fed complementary source antenna
• 2.1.2.2 Design of a waveguide-to-differentially fed port transition
• 2.1.2.3 Measurement results
• 2.2 HOM MMW patch antenna
• 2.2.1 Wideband HOM patch element
• 2.2.1.1 Antenna element performance
• 2.2.1.2 Combining fundamental and higher-order modes for broadband operation
• 2.2.2 Differentially fed HOM patch antenna
• 2.2.2.1 Antenna geometry and working principle
• 2.2.2.2 Simulation and measurement results
• 2.3 Wideband MMW complementary source antennas for 5G
• 2.3.1 Linearly polarized antenna fed by an SIW
• 2.3.2 Radiation mechanism of the wideband antenna
• 2.3.3 Comparison of simulation and measurement results
• 2.4 Conclusion
• Acknowledgment
• References

Inspec keywords: microstrip antennas; 5G mobile communication; broadband antennas; millimetre wave antennas; dipole antennas

Other keywords: higher order mode; wideband MMW complementary source antennas; Millimeter-wave antennas; printed-circuit-board; HOM MMW patch antenna; design methodologies; frequency 64 GHz to 71 GHz; plated-through-hole technologies; wideband MMW ME dipole antennas; 5G communications upper bands

Subjects: Single antennas; Mobile radio systems