Metasurface For Microstrip-fed Slot Antennas
Abstract
- Metasurface For Microstrip-fed Slot Antennas Ham Radio
- Mu-near-zero Metasurface For Microstrip-fed Slot Antenna
- Metasurface For Microstrip-fed Slot Antennas Antenna
A meander stripline feed multiband microstrip antenna loaded with metasurface reflector (MSR) structure has been designed, analyzed and constructed that offers the wireless communication services for UHF/microwave RFID and WLAN/WiMAX applications. The proposed MSR assimilated antenna comprises planar straight forward design of circular shaped radiator with horizontal slots on it and 2D. The Ali MT (2015) Metasurface Reflector (MSR) Loading proposed MSR assimilated antenna comprises planar straight forward design of circular for High Performance Small Microstrip Antenna shaped radiator with horizontal slots on it and 2D metasurface formed by the periodic Design. In this paper, the effects of the proposed slot antenna parameters are discussed and analysed using CST microwave studio. In comparison with patch antennas, annular-slot antennas have relatively wide impedance characteristics. Usually, for antennas with narrow annular-slots, the impedance bandwidth is only about 10%, but for wider slots.
The metasurface concept has emerged as an advantageous reconfigurable antenna architecture for beam forming and wave-front shaping, with applications that include satellite and terrestrial communications, radar, imaging, and wireless power transfer. The metasurface antenna consists of an array of metamaterial elements distributed over an electrically large structure, each subwavelength in dimension and with subwavelength separation between elements. In the antenna configuration we consider, the metasurface is excited by the fields from an attached waveguide. Each metamaterial element can be modeled as a polarizable dipole that couples the waveguide mode to radiation modes. Distinct from the phased array and electronically-scanned-antenna architectures, a dynamic metasurface antenna does not require active phase shifters and amplifiers but rather achieves reconfigurability by shifting the resonance frequency of each individual metamaterial element. We derive the basic properties of a one-dimensional waveguide-fed metasurface antenna in the approximation in which the metamaterial elements do not perturb the waveguide mode and are noninteracting. We derive analytical approximations for the array factors of the one-dimensional antenna, including the effective polarizabilities needed for amplitude-only, phase-only, and binary constraints. Using full-wave numerical simulations, we confirm the analysis, modeling waveguides with slots or complementary metamaterial elements patterned into one of the surfaces.
Metasurface For Microstrip-fed Slot Antennas Ham Radio
7 More- Received 27 June 2017
DOI:https://doi.org/10.1103/PhysRevApplied.8.054048
Mu-near-zero Metasurface For Microstrip-fed Slot Antenna
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