A hybrid MoM-asymptotic and circuit based analysis of the radiation/receiving by large finite patch antenna arrays with a printed feed network

2004 ◽  
Author(s):  
P. Mahachoklertwattana ◽  
P.H. Pathak ◽  
P. Janpugdee ◽  
R.J. Burkholder ◽  
Y.-B. Gan
Keyword(s):  
Antenna Arrays ◽  
Patch Antenna ◽  
Feed Network

Triangular lattices for mutual coupling reduction in patch antenna arrays

2011 ◽  
Author(s):  
Nurul H. Noordin ◽  
Ahmed O. El-Rayis ◽  
Nakul Haridas ◽  
Brian Flynn ◽  
Ahmet T. Erdogan ◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Patch Antenna ◽  
Mutual Coupling ◽  
Triangular Lattices ◽  
Mutual Coupling Reduction

W-band optical modulators using organic EO polymer waveguides and patch antenna arrays

2021 ◽  
Author(s):  
Takahiro Kaji ◽  
Isao Morohashi ◽  
Yukihiro Tominari ◽  
Yoh Ogawa ◽  
Norihiko Sekine ◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Patch Antenna ◽  
Polymer Waveguides ◽  
Optical Modulators ◽  
W Band

scholarly journals Beamwidth-Enhanced Low-Profile Dual-Band Circular Polarized Patch Antenna for CNSS Applications

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Hongmei Liu ◽  
Chenhui Xun ◽  
Shaojun Fang ◽  
Zhongbao Wang
Keyword(s):  
Patch Antenna ◽  
Ground Plane ◽  
Axial Ratio ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Coupled Line ◽  
Low Profile ◽  
Feed Network ◽  
Single Input ◽  
Half Power

A low-profile dual-band circular polarized (CP) patch antenna with wide half-power beamwidths (HPBWs) is presented for CNSS applications. Simple stacked circular patches are used to achieve dual-band radiation. To enhance the HPBW for the two operation bands, a dual annular parasitic metal strip (D-APMS) combined with reduced ground plane (R-GP) is presented. A single-input feed network based on the coupled line transdirectional (CL-TRD) coupler is also proposed to provide two orthogonal modes at the two frequency bands simultaneously. Experimental results show that the 10 dB impedance bandwidth is 32.7%. The 3 dB axial ratio (AR) bandwidths for the lower and upper bands are 4.1% and 6.5%, respectively. At 1.207 GHz, the antenna has the HPBW of 123° and 103° in the xoz and yoz planes, separately. And the values are 127° and 113° at 1.561 GHz.

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