scholarly journals QUAD-FREQUENCY LINEARLY-POLARIZED AND DUAL-FREQUENCY CIRCULARLY-POLARIZED MICROSTRIP PATCH ANTENNAS WITH CRLH LOADING

2013 ◽  
Vol 133 ◽  
pp. 91-115 ◽  
Author(s):  
Daniel Segovia-Vargas ◽  
Francisco Javier Herraiz-Martinez ◽  
Eduardo Ugarte-Munoz ◽  
Luis Enrique Garcia-Munoz ◽  
Vicente Gonzalez-Posadas
Keyword(s):  
Patch Antennas ◽  
Dual Frequency ◽  
Circularly Polarized ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Linearly Polarized

Dual-band linearly and circularly polarized microstrip patch antennas with meandering slot and metallic vias

2015 ◽  
Vol 9 (2) ◽  
pp. 341-348 ◽  
Author(s):  
Jin Zhang ◽  
Xianqi Lin ◽  
Jiawei Yu ◽  
Liying Nie
Keyword(s):  
Linear Polarization ◽  
Impedance Matching ◽  
Single Band ◽  
Dual Band ◽  
Patch Antennas ◽  
Circularly Polarized ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Measurement Results ◽  
Simulation Results

Patch antennas with a meandering slot and different distributions of grounded metallic vias are presented in this paper. The meandering slot is adopted to stimulate dual-band operation, while the number and position of the grounded metallic vias are suggested to achieve different radiation performances. The characteristics are analyzed in detail where we find that the existence of the vias also improves the impedance matching. Four samples are designed, where dual-band with both linear polarization, dual-band with circular- and linear-polarization, and single band with linear polarization are obtained, respectively. The samples are finally fabricated and the measurement results agree well with the simulation results.

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