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Abstract
Metasurface For Microstrip-fed Slot Antennas Ham Radio
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. Colour up casino bingo. 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.
7 MoreA 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. A new design for a microstrip-fed slot antenna (MFSA) is proposed and developed for improving bandwidth, gain and reducing back radiation. In contrast with most unidirectional MFSA, a metasurface. In fact, the gain and bandwidth of the metasurface antennas are affected by the reflectivity of the metasurface, which is primarily determined by the geometry and dimensions of the metasurface. Guo, ' An X-band parabolic antenna based on gradient metasurface,' AIP Adv. 6, 075013 (2016). A New Microstrip-Fed Printed Slot Antenna Based on Moore Space-Filling Geometry Jawad K. Ali Electrical and Electronic Engineering Department, University of Technology, P.O.Box 35239, Baghdad, Iraq jawadkali@ieee.org Abstract— In this paper, a new design of miniature, multiband slot antenna is presented. The slot structure of the proposed. Craps yo bet payout.
Akkaraekthalin, 'Mu-near-zero metasurface for microstrip-fed slot antennas,' Appl. A 112, 669-675 (2013). The operation of our HMS design relies on altering wave vectors' directions; 1717.
- Received 27 June 2017
DOI:https://doi.org/10.1103/PhysRevApplied.8.054048
Mu-near-zero Metasurface For Microstrip-fed Slot Antenna
Metasurface For Microstrip-fed Slot Antennas Ham Radio
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. Colour up casino bingo. 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.
7 MoreA 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. A new design for a microstrip-fed slot antenna (MFSA) is proposed and developed for improving bandwidth, gain and reducing back radiation. In contrast with most unidirectional MFSA, a metasurface. In fact, the gain and bandwidth of the metasurface antennas are affected by the reflectivity of the metasurface, which is primarily determined by the geometry and dimensions of the metasurface. Guo, ' An X-band parabolic antenna based on gradient metasurface,' AIP Adv. 6, 075013 (2016). A New Microstrip-Fed Printed Slot Antenna Based on Moore Space-Filling Geometry Jawad K. Ali Electrical and Electronic Engineering Department, University of Technology, P.O.Box 35239, Baghdad, Iraq jawadkali@ieee.org Abstract— In this paper, a new design of miniature, multiband slot antenna is presented. The slot structure of the proposed. Craps yo bet payout.
Akkaraekthalin, 'Mu-near-zero metasurface for microstrip-fed slot antennas,' Appl. A 112, 669-675 (2013). The operation of our HMS design relies on altering wave vectors' directions; 1717.
- Received 27 June 2017
DOI:https://doi.org/10.1103/PhysRevApplied.8.054048
Mu-near-zero Metasurface For Microstrip-fed Slot Antenna
Metasurface For Microstrip-fed Slot Antennas Antenna
© 2017 American Physical Society
Physics Subject Headings (PhySH)
