scholarly journals Single-band Zigzag Dipole Artificial Magnetic Conductor

2012 ◽  
Vol 58 (1) ◽  
Author(s):  
M. Abu ◽  
M. K. A. Rahim
Keyword(s):  
Computer Simulation ◽  
Electric Field ◽  
Surface Impedance ◽  
Single Band ◽  
Uhf Rfid ◽  
Magnetic Conductor ◽  
Artificial Magnetic Conductor ◽  
Rfid Applications ◽  
Phase Reflection

A new Artificial Magnetic Conductor (AMC) structure called zigzag dipole is discussed. Based on the 0.92GHz straight dipole AMC, the zigzag dipole AMC operating at 0.92GHz, 2.45GHz and 5.8GHz are carried out using TLC-32 and RF-35 boards. This AMC structure is designed based on the characterization of a unit cell using a transient solver of Computer Simulation Technology (CST) software. The simulated results such as the reflection phase, reflection magnitude, surface impedance, bandgap and electric field for each single-band AMC are presented in this paper. From the results gained it shows that, the bandwidth of the AMC will increase when the frequency is increased. It is also proved that these AMC are not providing the bandgap at their resonance. The zigzag dipole AMC is carried out to minimize the AMC size and to be suitable for UHF RFID applications.

scholarly journals Characterization of artificial magnetic conductor strips for parallel plate planar antennas

2008 ◽  
Vol 50 (2) ◽  
pp. 498-504 ◽  
Author(s):  
P. Padilla de la Torre ◽  
J.M. Fernández ◽  
M. Sierra-Castañer
Keyword(s):  
Parallel Plate ◽  
Planar Antennas ◽  
Magnetic Conductor ◽  
Artificial Magnetic Conductor

scholarly journals A Square Patch with L and Inverted L shaped slotted AMC structure for Wi-Fi Applications

2020 ◽  
Vol 9 (1) ◽  
pp. 1722-1725
Keyword(s):  
Resonant Frequency ◽  
Patch Antenna ◽  
High Frequency ◽  
Return Loss ◽  
Band Width ◽  
Magnetic Conductor ◽  
Radiation Characteristics ◽  
Artificial Magnetic Conductor ◽  
High Frequency Structure Simulator ◽  
Phase Reflection

To improve the antenna characteristics in terms of bandwidth, gain and its radiation characteristics without providing any phase reflections, Artificial Magnetic Conductor (AMC) are used in antenna designing. This paper initially designed AMC structure for 2.4GHz frequency. The proposed AMC structure consists of three L shaped and inverted L shaped slots and provides zero degrees phase reflection at 2.4GHz resonant frequency. This proposed AMC structure is incorporated on conventional micro strip square patch antenna and results are simulated in High Frequency Structure Simulator (HFSS) software. The Proposed AMC incorporated patch antenna, return loss is improved from -16.16dB to -31.75dB, VSWR is from 1.42 to 1.05, the band width is increased from 16.5 MHz to 348.1 MHz This design resonates at a frequency of 2.4GHz and applicable to Wi-Fi applications.

Bandwidth Widening, Gain Improvement and Efficiency Boost of an Antenna Using Artificial Magnetic Conductor (AMC) Ground Plane

2014 ◽  
Vol 70 (1) ◽  
Author(s):  
Raimi Dewan ◽  
Sharul Kamal Abdul Rahim ◽  
Siti Fatimah Ausordin ◽  
Dyg Norkhairunnisa Abang Zaidel ◽  
Bashir Muhammad Sa’ad ◽  
...  
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Performance Comparison ◽  
Magnetic Conductor ◽  
Bandwidth Enhancement ◽  
Artificial Magnetic Conductor ◽  
Measurement Results ◽  
Parametric Studies ◽  
Rfid Applications

In this paper, a standalone patch antenna operating at 2.3 GHz is initially designed as a reference antenna. Subsequently, the patch antenna is incorporated with an Artificial Magnetic Conductor (AMC) as the ground plane to obtain an Antenna with Artificial Magnetic Conductor (AAMC). Performance comparison is analyzed between the standalone patch antenna and the AAMC. The incorporation of AMC to the patch antenna successfully enhances the bandwidth of the standalone patch antenna by 520%, increases gain by 2dBi, and boosts the efficiency up to 30 % as compared to the reference antenna. As a result of the bandwidth enhancement, the AAMC is capable to cover several frequency bands within 2.19 GHz to 2.5 GHz. Hence, the new design is suitable for WiMAX, WLAN and RFID applications. The measurement results in terms of return loss, gain and radiation patterns agreed satisfactorily with the simulated ones. Moreover, the parametric studies of antenna dimensions and air gap are presented and discussed.

Textile Artificial Magnetic Conductor Waveguide Sheet with Wire Dipoles for Body Centric Communication

2013 ◽  
Vol 64 (3) ◽  
Author(s):  
Kamilia Kamardin ◽  
Mohamad Kamal A. Rahim ◽  
Noor Asmawati Samsuri ◽  
Mohd Ezwan Jalil ◽  
Izni Husna Idris ◽  
...  
Keyword(s):  
Radiation Pattern ◽  
Ground Plane ◽  
High Gain ◽  
Magnetic Conductor ◽  
Artificial Magnetic Conductor ◽  
S Parameters ◽  
Phase Reflection

A textile Artificial Magnetic Conductor (AMC) sheet-like waveguide with wire dipoles were designed to investigate the possibility of improving transmission between antennas. The textile AMC sheet is made of fleece fabric with conductive patches and ground plane made of SHIELDIT fabric. The AMC surface is designed to have in-phase reflection at 2.45GHz with the objective to enhance the transmission between antennas. The S-parameters performance of the two antennas with textile AMC sheet was investigated thoroughly. The effect of different antennas’ placement and distance was also considered. Measurements were conducted rigorously to validate the simulated findings. Results show that the S21 transmission between antennas improved significantly when having the AMC waveguide sheet beneath them. Directive radiation pattern with high gain was also achieved with the proposed AMC sheet-like waveguide.

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