Adaptive microstrip antenna arrays for wireless security systems

1999 ◽  
Author(s):  
Jayanti Venkataraman ◽  
Fung I. Tseng
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Wireless Security ◽  
Security Systems

Circularly-Polarized Focused Microstrip Antenna Arrays

2016 ◽  
Vol 15 ◽  
pp. 52-55 ◽  
Author(s):  
Yuhai Jiang ◽  
Wen Geyi ◽  
Lingsheng Yang ◽  
Hucheng Sun
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Circularly Polarized

scholarly journals Compact Design of Annular-Microstrip-Fed mmW Antenna Arrays

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3695
Author(s):  
Shu-Dong Lin ◽  
Shi Pu ◽  
Chen Wang ◽  
Hai-Yang Ren
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Radiation Characteristic ◽  
60 Ghz ◽  
Outer Contour ◽  
Linear Arrays ◽  
Directional Radiation ◽  
Microstrip Antenna Array ◽  
Compact Design ◽  
Compact Array

In this paper, a series of four novel microstrip antenna array designs based on different annular-microstrip feeding lines at 60-GHz millimeter wave (mmW) band are proposed, aiming at the potential usage of the mmW coverage antenna with multi-directional property. As the feeding network, the annular contour microstrip lines are employed to connect the patch units so as to form a more compact array. Our first design is to use an outer contour annular microstrip line to connect four-direction linear arrays composed of 1 × 3 rectangular patches, thus the gain of 8.4 dBi and bandwidth of over 300 MHz are obtained. Our second design is to apply the two-direction pitchfork-shaped array each made up of two same linear arrays as the above, therefore the gain of 9.65 dBi and bandwidth of around 250 MHz are achieved. Our third design is to employ dual (inner and outer contour) annular-microstrip feeding lines to interconnect the above four-direction linear arrays, while our fourth design is to bring bridged annular-microstrip feeding lines, both of which can realize the goal of multi-directional radiation characteristic and higher gain of over 10 dBi.

scholarly journals Study of Horizontally Polarized Omnidirectional Microstrip Antenna Arrays

2017 ◽  
Vol 26 (1) ◽  
pp. 107-113
Author(s):  
K. Wei ◽  
J. Y. Li ◽  
L. Wang ◽  
R. Xu
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna
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