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Estimation of Gain Enhancement Replacing PTFE by Air Substrate in a Microstrip Patch Antenna [Antenna Designer's Notebook]

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3 Author(s)
Guha, D. ; Inst. of Radio Phys. & Electron., Univ. of Calcutta, Kolkata, India ; Chattopadhya, S. ; Siddiqu, J.Y.

An easy estimation of the gain enhancement of a microstrip patch that occurs when a standard PTFE substrate is replaced by air is presented. The theory is verified for a wide range of antenna dimensions, using some measured and simulated data, indicating very close agreement amongst the data. This approach should be very handy and useful to a designer dealing with air-substrate microstrip antennas.

Published in:

Antennas and Propagation Magazine, IEEE  (Volume:52 ,  Issue: 3 )