Dual-band microstrip antennas are generally of two types. (1) Separate microstrip resonators coupled to a transmission line, and (2) Perturbed microstrip resonators, where their original resonant frequencies are shifted by geometrical alteration of a basic resonator. Dual -band microstrip antenna designs which allow for independent frequency selection have the most design utility. This Chapter discusses: rectangular microstrip dual-band antennas, multiple resonator dual-band antennas, dual-band microstrip antenna design using a diplexer, and multiband patch shaping using a genetic algorithm.

Chapter Contents:

• 5.1 Rectangular microstrip dual-band antenna
• 5.2 Multiple resonator dual-band antennas
• 5.2.1 Coupled microstrip dipoles
• 5.2.2 Stacked rectangular microstrip antennas
• 5.3 Dual-band microstrip antenna design using a diplexer
• 5.3.1 Example dual-band microstrip antenna using a diplexer
• 5.4 Multiband patch shaping using a genetic algorithm
• References

Inspec keywords: multifrequency antennas; genetic algorithms; microstrip resonators; transmission lines; microstrip antennas

Other keywords: separate microstrip resonators; rectangular antennas; dual-band microstrip antennas; resonant frequencies; multiple resonator antennas; diplexers; design utility; genetic algorithm; multiband patch shaping; transmission line; geometrical alteration; independent frequency selection; perturbed microstrip resonators

Subjects: Single antennas; Waveguide and microwave transmission line components