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A novel approach is presented to increase the realized gain for millimeter wave applications at 28 GHz using metamaterial (MTM) profile based antennas. The concept of epsilon-negative medium (ENG) and double negative medium (DNG) is analyzed to have metamaterial corrugations instead of sine corrugations. In this paper, the antipodal Fermi based tapered slot antenna (AFTSA) is analyzed using metamaterial...
This paper presents a high gain, and low cross polarized four element sine shaped antipodal Fermi tapered slot antenna (AFTSA-SC) based on H-plane array architecture that operates at 57–64 GHz for applications in millimeter wave systems. The proposed antenna consists of circular slots and sine-shaped corrugation to enhance the radiation characteristics of the antenna. This antenna is analyzed in H-plane...
An efficient method for improving the mutual coupling between two antipodal Fermi-based tapered slot antennas is presented. This is achieved by using metamaterial-based corrugations, acting as a metasurface shield, etched on edge side of the substrate. An array of split-ring resonator unit cells is incorporated into the design to suppress leakage from the side walls and to improve the isolation. The...
A 32.5 GHz antipodal fermi-linear tapered slot antenna (AFLTSA) 1×8 array for millimeter wave applications is presented in this paper. The substrate integrated waveguide (SIW) feeding structure is used to excite this proposed antenna. The proposed antenna has a sine corrugation to improve the radiation characteristics of the antenna. The simulated results of the single element yields a wide bandwidth...
In this paper, a beamforming technique using multimode section based on s-parameters has been analyzed for antipodal fermi-linear tapered slot antenna (AFLTSA). The analysis is proposed for 2 × 2 and 4 × 4 sub arrays on Rogers 5880 substrate with a relative dielectric permittivity εr=2.2 in order to achieve an objective of high gain and narrow beamwidth, which can be used for target tracking and precise...
The following paper presents and compares simulated results of reflection coefficient, axial ratio, and realized gain, which are related to various structures of patch antenna including single element, subarrays of 2×2 and 4×4. The proposed antennas have a capability of circular polarization in millimeter wave applications. In addition, the basic structure of antennas is in the form of aperture coupled...
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