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Fig. 9 The realized gain at operating frequency 5.8 GHz is simulated at constant phi = 90° versus theta.

Figure 9 The realized gain at operating frequency 5.8 GHz is simulated at constant phi = 90° versus theta.

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A microstrip antenna is an antenna that is primarily a two- dimensional flat structure, as shown in Fig. 1. In its most basic form, it employs a one-half wavelength long conducting "patch," with the metal surface acting as a resonator, similar to half-wave dipole antennas. It is frequently constructed simply by mounting or constructing an appropriately dimensioned metal sheet or surface on an insulating dielectric substrate, such as a printed circuit board. The opposite side of the PC board substrate is also cladded and so forms a ground plane, or another conductive surface is added on the other side of the dielectric [7]. The dimensions of the rectangular microstrip patch antenna are shown in Table |. The substrate material is FR-4 with a relative permittivity of 4.3 and a thickness of 1.6 mm. The following equations are used for microstrip antenna design [8].
A microstrip antenna is an antenna that is primarily a two- dimensional flat structure, as shown in Fig. 1. In its most basic form, it employs a one-half wavelength long conducting "patch," with the metal surface acting as a resonator, similar to half-wave dipole antennas. It is frequently constructed simply by mounting or constructing an appropriately dimensioned metal sheet or surface on an insulating dielectric substrate, such as a printed circuit board. The opposite side of the PC board substrate is also cladded and so forms a ground plane, or another conductive surface is added on the other side of the dielectric [7]. The dimensions of the rectangular microstrip patch antenna are shown in Table |. The substrate material is FR-4 with a relative permittivity of 4.3 and a thickness of 1.6 mm. The following equations are used for microstrip antenna design [8].
Table | Microstrip Antenna Parameters.
Table | Microstrip Antenna Parameters.
Table 2 NZIM Parameters
Table 2 NZIM Parameters
The schematic diagram of the proposed antenna array with NZIM superstrate is shown in Fig. 3. The 4 x 4 array is designed using 16 single elements and a T-shaped power divider to split power for each element. The antenna array elements are separated by 4/2 to avoid mutual coupling between each element. The proposed array is designed to increase the realized gain. The realized gain is increased by using the array to 14 dB. Fig. 3 The proposed antenna array with NZIM Superstrate.
The schematic diagram of the proposed antenna array with NZIM superstrate is shown in Fig. 3. The 4 x 4 array is designed using 16 single elements and a T-shaped power divider to split power for each element. The antenna array elements are separated by 4/2 to avoid mutual coupling between each element. The proposed array is designed to increase the realized gain. The realized gain is increased by using the array to 14 dB. Fig. 3 The proposed antenna array with NZIM Superstrate.
Fig. 6 Extracted real and imaginary parts of the refractive index for the proposed NZIM unit cell. Fig. 7 The reflection coefficient of single element and antenna array.
Fig. 6 Extracted real and imaginary parts of the refractive index for the proposed NZIM unit cell. Fig. 7 The reflection coefficient of single element and antenna array.
Fig. 8 High gain patch antenna with and without the NZIM superstrate.
Fig. 8 High gain patch antenna with and without the NZIM superstrate.
Related topics:
Microstrip AntennasMicrostrip AntennaPATCH ANTENNA
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