Improved characteristics of microstrip patch antenna using reactive impedance surface

2017 ◽  
Author(s):  
Namrta Rastogi ◽  
Rakhi Kumari
Keyword(s):  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Impédance Surface ◽  
Impedance Surface ◽  
Microstrip Patch ◽  
Improved Characteristics

scholarly journals Miniaturized Circularly Polarized Stacked Patch Antenna on Reactive Impedance Surface for Dual-Band ISM and WiMAX Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Kush Agarwal ◽  
Saugata Dutta
Keyword(s):  
Frequency Band ◽  
Patch Antenna ◽  
Axial Ratio ◽  
Dual Band ◽  
Impédance Surface ◽  
Impedance Surface ◽  
Circularly Polarized ◽  
Microstrip Patch ◽  
Lower Band ◽  
Lower Frequency Band

This paper proposes a compact microstrip patch antenna for operating in 2.4 GHz ISM and 3.5 GHz WiMAX bands with circularly polarized (CP) radiation. The CP radiation in dual-bands is a result of two multilayered truncated corner stacked square patches, while the reactive impedance surface (RIS) is used for antenna size miniaturization for the lower operating frequency band. Since the overall lateral antenna dimensions are controlled by the lower frequency band (higher wavelength), reducing the electrical size of the antenna for lower band results in overall smaller antenna dimensions. The measured 3-dB axial ratio bandwidths of the in-house fabricated antenna prototype are 6.1% (2.40–2.55 GHz) for the lower band and 5.7% (3.40–3.60 GHz) for the upper band, while the 10-dBS11bandwidths for the two bands are 8.1% (2.39–2.59 GHz) and 6.9% (3.38–3.62 GHz), respectively. The maximum gain at boresight for the lower band is 2.93 dBic at 2.5 GHz, while the gain for the upper band is 6.26 dBic at 3.52 GHz. The overall volume of the proposed antenna is 0.292λo × 0.292λo × 0.044λo, whereλois the corresponding free-space wavelength at 2.5 GHz.

scholarly journals Compact Wideband Microstrip Patch Antenna based on High Impedance Surface

2018 ◽  
Vol 8 (4) ◽  
pp. 3149-3152
Author(s):  
S. Nelaturi ◽  
N. V. S. N. Sarma
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Axial Ratio ◽  
Fractal Boundary ◽  
Impédance Surface ◽  
Impedance Surface ◽  
Microstrip Patch ◽  
High Impedance ◽  
Close Relationship ◽  
High Impedance Surface

A compact single probe feed asymmetrical semicircular fractal boundary patch antenna based on HIS (high impedance surface) is proposed for wide bandwidth at Wi-Fi band. Circular polarization operation can be obtained by embedding semi-circle fractal curves along the edges of the square patch antenna. The 10-dB return loss bandwidth is 15.13% (2.32GHz-2.70GHz). The 3-dB axial ratio bandwidth is 4.11% (2.38GHz-2.48GHz). The close relationship between simulation results and measured results establishes the antenna usefulness.

Metamaterial Structure with Negative μ and ε for reduction of return loss of Microstrip Patch Antenna

2012 ◽  
Vol 2 (8) ◽  
pp. 130-133
Author(s):  
Amandeep Singh Amandeep Singh ◽  
◽  
Sankul Agarwal ◽  
Vaibhav Sharma ◽  
Shivam Pandita
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Microstrip Patch Antenna ◽  
Metamaterial Structure ◽  
Microstrip Patch

Frequency reconfigurable microstrip patch antenna

2014 ◽  
Author(s):  
Liping Han ◽  
Luting Guo ◽  
Runbo Ma ◽  
Wenmei Zhang
Keyword(s):  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch
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