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Gunn-mounted active microstrip rectangular patch antenna – revisited

Published online by Cambridge University Press:  07 August 2013

Somnath Chatterjee ,
Susmita Pal ,
Apala Bhattacharaya  and
Baidynath N. Biswas
Somnath Chatterjee*
Affiliation:
Kanailal Vidyamandir (Fr. Sec.), Chandernagore, Hooghly, West Bengal, India
Susmita Pal
Affiliation:
WEBEL, Kolkata, West Bengal, India
Apala Bhattacharaya
Affiliation:
Vivekananda Mahavidyalaya, Burdwan, West Bengal, India
Baidynath N. Biswas
Affiliation:
Sir J. C. Bose School of Engineering, Mankundu, Hooghly, West Bengal, India
*
Corresponding author: S. Chatterjee Email: somnathchat@yahoo.com
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Abstract

The microstrip active patch antenna behaves like a resonant circuit/cavity with multiple resonant frequencies; furthermore, depending on the non-linearity of the device, it generates significant amount of second harmonic radiation. The location of the device on the patch that maximizes the fundamental radiated power output is found to be not the position corresponding to the minimum second harmonic content in radiated power. An optimum location of the diode on the patch has been suggested. The paper also discusses the modification of the behavior of the active antenna, which is first an oscillator; and then a radiator, under injection-locked condition. The results are presented with respect to a Gunn-mounted rectangular patch.

Keywords

Rectangular patch antennaGunn diodeSecond harmonicInjection locking
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 5 , Issue 5 , October 2013 , pp. 579 - 587
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2013 

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