An asymptotic high-frequency analysis of the radiation by a source on a perfectly conducting convex cylinder with an impedance surface patch (antennas)

1988 ◽  
Vol 36 (10) ◽  
pp. 1407-1417 ◽  
Author(s):  
L. Ersoy ◽  
P.H. Pathak
Keyword(s):  
Frequency Analysis ◽  
High Frequency ◽  
Surface Patch ◽  
Patch Antennas ◽  
Impédance Surface ◽  
Impedance Surface

scholarly journals Reduction of scattering cross section of path antennas

2021 ◽  
Vol 2094 (2) ◽  
pp. 022040
Author(s):  
M B Ryzhikov ◽  
Yu A Novikova
Keyword(s):  
Comparative Analysis ◽  
Cross Section ◽  
Surface Resistance ◽  
Resonant Scattering ◽  
Scattering Cross Section ◽  
Patch Antennas ◽  
Impédance Surface ◽  
Impedance Surface ◽  
Scattering Cross ◽  
Scattering Indicatrices

Abstract This report considers the possibility of reducing the scattering cross section of patch antennas when using emitters of various shapes and when using structures with non-zero surface resistance. The report presents the results of the influence of the choice of the shape of a emitter on the SCS in the region of resonant scattering frequencies. The scattering indicatrices of various emitters for the resonant scattering frequency are analyzed. Comparative analysis results of the decrease estimation for the SCS of the square path when using various forms of regions with impedance surface are presented.

scholarly journals Wideband Circularly Polarized Planer Inverted-F Antenna using Reactive Impedance Surface

2019 ◽  
Vol 9 (1) ◽  
pp. 4240-4245
Keyword(s):  
High Frequency ◽  
Axial Ratio ◽  
Size Reduction ◽  
Impedance Bandwidth ◽  
Impédance Surface ◽  
Impedance Surface ◽  
Circularly Polarized ◽  
High Frequency Structure Simulator ◽  
Narrow Bandwidth ◽  
Measured Impedance

A wideband circularly polarized (CP) planar inverted-F antenna (PIFA) is proposed and designed using reactive impedance surface (RIS) for mobile communication. PIFA with RIS is used for CP radiation, size reduction and wideband of the proposed CP-PIFA. It is a different technique for improving the various performance parameters of the antenna, that is, narrow bandwidth, size reduction, and the axial ratio (AR). The structure of circular polarized PIFA is designed, analyzed, geometrically optimized, and implementation of the antenna to operate at 2.4 GHz WLAN bands. Finally, a proposed CP-PIFA is analyzed and simulated using full 3D electromagnetic high-frequency structure simulator (HFSS). The measured impedance bandwidth of designing an antenna (S11) 10-dB is 1399 MHz (1.542-2.943 GHz) 58.29\%, simulated 3-dB axial ratio bandwidth is 870 MHz (1.639-2.50 GHz) 36.25\%, measured voltage standing wave ratio (VSWR) is 1.02 and the realized gain is 8.1 dB for the 2.4 GHz WLAN bands

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