Co‐linear polarization decoupling of two feeding ports in a single patch antenna without radiation patterns deterioration

2021 ◽  
Author(s):  
Hui Deng ◽  
Lei Zhu ◽  
Neng‐Wu Liu ◽  
Jiang‐Feng Lin
Keyword(s):  
Linear Polarization ◽  
Patch Antenna ◽  
Radiation Patterns

A Broadband Circularly Polarized Cross-slotted Patch Antenna with Horizontal Meandered Strip (HMS)

Frequenz ◽  
2020 ◽  
Vol 74 (5-6) ◽  
pp. 191-199
Author(s):  
M. K. Verma ◽  
Binod K. Kanaujia ◽  
J. P. Saini ◽  
Padam S. Saini
Keyword(s):  
Circular Polarization ◽  
Patch Antenna ◽  
Impedance Matching ◽  
Axial Ratio ◽  
Impedance Bandwidth ◽  
Radiation Patterns ◽  
Circularly Polarized ◽  
Feeding Technique

AbstractA broadband circularly polarized slotted square patch antenna with horizontal meandered strip (HMS) is presented and studied. The HMS feeding technique provides the good impedance matching and broadside symmetrical radiation patterns. A set of cross asymmetrical slots are etched on the radiating patch to realize the circular polarization. An electrically small stub is added on the edge of the antenna for further improvement in performance. Measured 10-dB impedance bandwidth (IBW) and 3-dB axial ratio bandwidth (ARBW) of the proposed antenna are 32.31 % (3.14–4.35 GHz) and 20.91 % (3.34–4.12 GHz), respectively. The gain of the antenna is varied from 3.5 to 4.86dBi within 3-dB ARBW. Measured results matched well with the simulated results.

scholarly journals A metasurface composed of 3-bit coding linear polarization conversion elements and its application to RCS reduction of patch antenna

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Xiangkun Kong ◽  
Qi Wang ◽  
Shunliu Jiang ◽  
Lingqi Kong ◽  
Jing Yuan ◽  
...  
Keyword(s):  
Equivalent Circuit ◽  
Linear Polarization ◽  
Patch Antenna ◽  
Polarization Conversion ◽  
Electrical Behavior ◽  
Amplitude Response ◽  
Coding Sequence ◽  
Unit Cells ◽  
Simulation And Experiment ◽  
Equivalent Circuit Models

Abstract In this paper, a metasurface composed of 3-bit coding linear polarization conversion elements and its application to RCS reduction of the patch antenna is intensively studied. At first, 3-bit coding metasurface are constructed by a sequence of eight coded unit cells, which have a similar cross-polarized reflected amplitude response and gradient reflected phase responses covering 0–2π, respectively. Equivalent circuit models of these unit cells are created to describe their electrical behavior for the two linear incident polarizations at the same time. Then, a patch antenna is integrated on the 3-bit metasurface, of which the elements are placed with a 2-dimensional linear coding sequence. The metal square ring is set around the patch antenna to protect it from the disturbance of metasurface. Both the simulation and experiment results demonstrate that the designed metasurface can primarily reduce the antenna RCS at a broadband, while the antenna performances are not degraded significantly.

Shorted Patch Antenna with Symmetrical Radiation Patterns and Enhanced Gain

2019 ◽  
Author(s):  
Zijian Shao ◽  
Liang-Feng Qiu ◽  
Yue Ping Zhang
Keyword(s):  
Patch Antenna ◽  
Radiation Patterns

Broadband shorted patch antenna with monopole-like radiation patterns

2006 ◽  
Vol 48 (9) ◽  
pp. 1704-1707 ◽  
Author(s):  
Yen-Yu Liou ◽  
Jeen-Sheen Row ◽  
Tuan-Yung Han
Keyword(s):  
Patch Antenna ◽  
Radiation Patterns

scholarly journals STUDY OF ENHANCEMENT METHODS FOR MICROSTRIP PATCH ANTENNA RADIATION PATTERNS USING FDTD METHOD

1999 ◽  
Vol 2 (2) ◽  
pp. 119-130
Author(s):  
Ahmed Mahmoud ◽  
Maher Abd Elrazzak ◽  
Hamdi Elmikati
Keyword(s):  
Patch Antenna ◽  
Fdtd Method ◽  
Microstrip Patch Antenna ◽  
Radiation Patterns ◽  
Antenna Radiation ◽  
Microstrip Patch
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