scholarly journals A Large Frequency Ratio Dual-band Microstrip Antenna with Consistent Radiation Pattern for Internet of Sea Applications

2021 ◽  
Author(s):  
Hanguang Liao ◽  
Rana Muhammad Bilal ◽  
Atif Shamim
Keyword(s):  
Radiation Pattern ◽  
Frequency Ratio ◽  
Microstrip Antenna ◽  
Dual Band ◽  
Large Frequency

scholarly journals Modified Dual-Band Stacked Circularly Polarized Microstrip Antenna

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Guo Liu ◽  
Liang Xu ◽  
Yi Wang
Keyword(s):  
Radiation Pattern ◽  
Global Positioning System ◽  
Microstrip Antenna ◽  
High Performance ◽  
Axial Ratio ◽  
Dual Band ◽  
Optimized Design ◽  
Positioning System ◽  
Circularly Polarized ◽  
Global Positioning

A novel high-performance circularly polarized (CP) antenna is proposed in this paper. Two separate antennas featuring the global positioning system (GPS) dual-band operation (1.575 GHz and 1.227 GHz for L1 band and L2 band, resp.) are integrated with good isolation. To enhance the gain at low angle, a new structure of patch and two parasitic metal elements are introduced. With the optimized design, good axial ratio and near-hemispherical radiation pattern are obtained.

scholarly journals Planar Dual-Band Branch-Line Coupler With Large Frequency Ratio

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 33188-33195
Author(s):  
Lei Xia ◽  
Jia-Lin Li ◽  
Baidenger Agyekum Twumasi ◽  
Peng Liu ◽  
Shan-Shan Gao
Keyword(s):  
Frequency Ratio ◽  
Dual Band ◽  
Branch Line ◽  
Large Frequency

Stacked dual-band circularly polarized microstrip antenna with small frequency ratio

2014 ◽  
Vol 56 (8) ◽  
pp. 1933-1937 ◽  
Author(s):  
Sachin Kumar ◽  
Binod K. Kanaujia ◽  
Mukesh K. Khandelwal ◽  
A. K. Gautam
Keyword(s):  
Frequency Ratio ◽  
Microstrip Antenna ◽  
Dual Band ◽  
Small Frequency ◽  
Circularly Polarized
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