A novel stacked patch antenna with dual band and diverse pattern characteristics

2019 ◽  
Vol 62 (1) ◽  
pp. 453-465
Author(s):  
Junnan Yu ◽  
Yufa Sun ◽  
Hongyu Fang ◽  
Fan Li
Keyword(s):  
Patch Antenna ◽  
Dual Band ◽  
Stacked Patch Antenna ◽  
Diverse Pattern

scholarly journals Compact Dual-Band Circularly Polarized Stacked Patch Antenna for Microwave-Radio-Frequency Identification Multiple-Input-Multiple-Output Application

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Enze Zhang ◽  
Andrea Michel ◽  
Paolo Nepa ◽  
Jinghui Qiu
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Patch Antenna ◽  
Multiple Input Multiple Output ◽  
Dual Band ◽  
Circularly Polarized ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Frequency Identification ◽  
Stacked Patch Antenna

A compact, low-profile, two-port dual-band circularly polarized (CP) stacked patch antenna for radio-frequency identification (RFID) multiple-input-multiple-output (MIMO) readers is proposed, which employs the shared-aperture technique. The proposed antenna adopts a 1.524 mm thickness Rogers Ro4350b substrate with relative permittivity of 3.48. Two pairs of isolated ports are working at two microwave- (MW-) RFID bands (2.4–2.485 GHz and 5.725–5.875 GHz) with high port isolation of 25 dB and 30 dB, respectively. A shared metal slot layer is designed to separate two feeding structures of the lower band and upper band for port isolation enhancement as well as saving space. Corner-truncated square slot and patch configurations have been designed to obtain CP modes. In the lower and upper MW-RFID bands, the relative impedance bandwidths are 12.2% and 5.7%, and the maximum realized gains are higher than 7.3 dBic. Moreover, two-element configurations have been combined for an RFID MIMO system that occupies a dimension of 119 mm × 119 mm × 12.9 mm. The MIMO antenna performance of envelope correlation coefficient (ECC) is lower than 0.03, and diversity gain is close to 10 dB.

scholarly journals A compact dual-polarized dual-band stacked patch antenna for WLAN applications

2020 ◽  
Vol 17 (12) ◽  
pp. 20200179-20200179
Author(s):  
Guo-Jun Xie ◽  
Fu-Shun Zhang ◽  
Denghui Li ◽  
Hongyin Zhang ◽  
Fan Zhang
Keyword(s):  
Patch Antenna ◽  
Dual Band ◽  
Dual Polarized ◽  
Stacked Patch Antenna
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