Title :
Analysis of Gunn integrated annular ring microstrip antenna
Author :
Kanaujia, Binod Kumar ; Vishvakarma, Babau R.
Author_Institution :
Dept. of Electron. Eng., Banaras Hindu Univ., Varanasi, India
Abstract :
The analysis conducted on Gunn integrated annular ring microstrip antenna and evaluation of various parameters such as input impedance, voltage standing-wave radio voltage standing wave ratio (VSWR), return loss, bandwidth, radiation pattern, beamwidth, etc., as a function of bias voltage and threshold voltage reveals that the Gunn loaded patch offers wider tunability, better matching, enhanced radiated power as compared to the patch alone. Bandwidth of the Gunn loaded patch improves to 11.07% over the 7.9% bandwidth of the patch whereas the radiated power is enhanced by 3.7 dB as compared to the patch.
Keywords :
Gunn diodes; active antennas; antenna radiation patterns; impedance matching; loop antennas; microstrip antennas; Gunn integrated annular ring microstrip antenna; VSWR; active antenna; bandwidth; beamwidth; bias voltage; impedance matching; input impedance; parameter evaluation; patch antenna; radiated power; radiation pattern; return loss; threshold voltage; tunability; voltage standing wave ratio; Admittance; Apertures; Bandwidth; Dielectric substrates; Diodes; Equivalent circuits; Gunn devices; Loaded antennas; Microstrip antennas; Threshold voltage;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2003.822949
