The effect of a superstrate layer on the input impedance of an annular-ring microstrip antenna

1997 ◽  
Vol 2 (2) ◽  
pp. 190-194
Author(s):  
Fan Zhibo ◽  
Huang Jingxi
Keyword(s):  
Input Impedance ◽  
Microstrip Antenna ◽  
Annular Ring

scholarly journals Analysis and Design of Gap-Coupled Annular Ring Microstrip Antenna

2008 ◽  
Vol 2008 ◽  
pp. 1-5 ◽  
Author(s):  
Binod Kumar Kanaujia ◽  
Anil Kumar Singh
Keyword(s):  
Radiation Pattern ◽  
Theoretical Investigation ◽  
Input Impedance ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Feed Point ◽  
Annular Ring ◽  
Analysis And Design ◽  
Frequency Tunability

Theoretical investigation conducted on gap-coupled annular ring microstrip antenna is found to exhibit frequency tunability with the gap. The various parameters of the antenna such as input impedance, VSWR, return loss, and radiation pattern have been investigated as a function of gap length and feed point. It is found that the various parameters of gap-coupled microstrip antenna depend heavily on the gap length and feed points.

Frequency Agile Annular Ring Microstrip Antenna Loaded with MOS Capacitor

2008 ◽  
Vol 22 (10) ◽  
pp. 1361-1370 ◽  
Author(s):  
B. K. Kanaujia ◽  
A. K. Singh ◽  
B. R. Vishvakarma
Keyword(s):  
Microstrip Antenna ◽  
Mos Capacitor ◽  
Annular Ring ◽  
Frequency Agile
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