Octa-Band Metamaterial Inspired Multiband Monopole Antenna for Wireless Application

Abstract

In this paper, a Rectangular Monopole Antenna (RMPA) with offset microstrip feed is presented. The structure is fabricated on an FR4 substrate with a dimension of 28 × 32 × 1.6 mm 3 . The proposed structure achieves multiband operation by engraving 2 Complementary Split Ring Resonators (CSRRs) and a C-Shaped slot. Also, 2 Split Ring Resonators (SRRs) are printed on the adjacent sides of the radiating element. The parametric analysis is used to determine the optimum position of the feed and other critical parameters. The proposed structure operates at 2.25 GHz, 3.86 GHz, 4.60 GHz, 5.64 GHz, 5.86 GHz, 6.94 GHz, 7.48 GHz, and 9.47 GHz. The permeability of the SRR and permittivity of the CSRR are extracted and presented. The proposed antenna is fabricated and measured. The measured results of S 11 , radiation pattern, and gain are on par with the simulated results. The proposed antenna's simulated surface current and efficiency are also presented to validate the performance. Simple structure, stable radiation pattern, multiband operation, reasonable gain, and efficiency are the significant features of the proposed RMPA.

Multiband Circularly Polarized Apex Etched Hybrid Rectangular Dielectric Resonator for Wireless Applications

“…But the major disadvantage of microstrip is the low bandwidth and radiation efficiency. Metamaterials, [3,4,6,7] subwave length structures with unconventional electromagnetic traits like negative permitivity, permeability, and refractive index, have captivated researchers in recent decades. These properties, stemming from structure rather than constituents, enable novel electromagnetic device design.…”

“…A variety of techniques have been developed to achieve circular polarization; one such technique is the excitation technique which uses single or dual feed. A mechanical method of injecting fluid inside the DRA is reported in [4] to achieve circular polarization. Some other techniques which are capable of attaining circular polarization are by incorporating modification in the Dielectric resonator structures, reconfigurability achieved with combination diode and DRA in Multiple dielectric layers in [5].…”

A multiband quasi‐Yagi antenna using stepped driver and slotted ground for 2.4/3.5/5.2 GHz bands applications

“…1 Patch and monopole antennas are often used in the literature for planar multiband antenna design. [2][3][4][5][6][7][8][9][10][11][12] Although patch antennas have a form that is suitable for electronic circuits, they are not satisfactory for newgeneration wireless communication systems due to their low efficiency and very narrow bandwidth. Similarly, monopole antennas exhibit low gain, and it is difficult to maintain the radiation characteristics of the antenna at different frequency bands.…”

“…Planar multiband antennas are an excellent choice for such applications 1 . Patch and monopole antennas are often used in the literature for planar multiband antenna design 2–12 . Although patch antennas have a form that is suitable for electronic circuits, they are not satisfactory for new‐generation wireless communication systems due to their low efficiency and very narrow bandwidth.…”

Design of Metamaterial Antenna Based on the Mathematical Formulation of Patch Antenna for Wireless Application

“…Researchers are very interested in using metamaterials to improve antenna performance because of their distinctive electromagnetic activity. Some types of metamaterials include the split ring resonator (SRR) [18], omega-shaped [19], and complementary split ring resonator (CSRR) [20][21][22][23]. Tese materials are used to reduce size, improve bandwidth, and match impedance well.…”