Center-fed patch antenna with low cross polarization levels

2014 ◽  
Author(s):  
R. B. Waterhouse ◽  
D. Novak
Keyword(s):  
Patch Antenna ◽  
Cross Polarization

scholarly journals WIDE-BAND PATCH ANTENNA ARRAY WITH LOW CROSS-POLARIZATION CHARACTERISTICS

2017 ◽  
Vol 71 ◽  
pp. 23-28
Author(s):  
Feibiao Dong ◽  
Limei Xu ◽  
Xue-Sheng Li ◽  
Min Chen ◽  
Xiao-Mei Xie
Keyword(s):  
Antenna Array ◽  
Patch Antenna ◽  
Wide Band ◽  
Cross Polarization ◽  
Polarization Characteristics

Reduced Cross-Polarization Patch Antenna with Optimized Impedance Matching Using a Complimentary Split Ring Resonator and Slots as Defected Ground Structure

2021 ◽  
Vol 36 (6) ◽  
pp. 718-725
Author(s):  
Narayanasamy RajeshKumar ◽  
Palani Sathya ◽  
Sharul Rahim ◽  
Akaa Eteng
Keyword(s):  
Patch Antenna ◽  
Ring Resonator ◽  
Impedance Matching ◽  
Equivalent Circuit Model ◽  
Split Ring Resonator ◽  
Cross Polarization ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Split Ring ◽  
Surface Current Density

An innovative method is proposed to improve the cross-polarization performance and impedance matching of a microstrip antenna by integrating a complimentary split ring resonator and slots as a defected ground structure. An equivalent circuit model (ECM) enables the design take into consideration the mutual coupling between the antenna patch and the Defected Ground Structure. The input impedance and surface current density analysis confirms that the integration of a CSRR within a rectangular microstrip patch antenna leads to uniform comparative cross-polarization level below 40 dB in the H-plane, over an angular range of ± 50°. Introducing parallel slots, as well, leads to a reduction of spurious antenna radiation, thereby improving the impedance matching. Measurements conducted on a fabricated prototype are consistent with simulation results. The proposed antenna has a peak gain of 4.16 dB at 2.6 GHz resonating frequency, and hence is good candidate for broadband service applications.

scholarly journals Resonator-Fed Wideband and High-Gain Patch Antenna With Enhanced Selectivity and Reduced Cross-Polarization

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 49918-49927 ◽  
Author(s):  
Xiao Zhang ◽  
Qiong-Sen Wu ◽  
Lei Zhu ◽  
Guan-Long Huang ◽  
Tao Yuan
Keyword(s):  
Patch Antenna ◽  
High Gain ◽  
Cross Polarization ◽  
Enhanced Selectivity

scholarly journals Low Cross-Polarization Improved-Gain Rectangular Patch Antenna

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1189 ◽  
Author(s):  
Anurag Singh ◽  
Sandip Vijay ◽  
Rudra Narayan Baral
Keyword(s):  
Patch Antenna ◽  
Frequency Selective Surface ◽  
Cross Polarization ◽  
Gain Enhancement ◽  
Rectangular Patch ◽  
Shorting Pin ◽  
Half Power ◽  
Broadside Radiation ◽  
Polarization Level ◽  
Good Agreement

In this paper, a low cross-polarization improved-gain rectangular patch antenna is presented. A patch-ground shorting pin with defected patch structure (DPS) is introduced to suppress the cross-polarization level. A High Reflective Frequency Selective Surface (HRFSS) superstrate is designed and placed over the proposed antenna at an optimized position to intensify the gain. To characterize the unit-cell of the superstrate, its transmission characteristics are extracted and discussed. Integration of the superstrate achieves a beam contraction resulting in a gain enhancement to 10.65 dBi. The proposed antenna has perfect broadside radiation with a cross-polarization level of below −30 dB in the entire half power beamwidth. The prototype of the antenna exhibits good agreement between experimental and simulated results.

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