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Gap- Coupled Microstrip Antennas For Dual Frequency Operations

Author(s): S. PAL | G. K. DAS | M. MITRA

Journal: International Journal of Engineering Science and Technology
ISSN 0975-5462

Volume: 3;
Issue: 8;
Start page: 6149;
Date: 2011;
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Keywords: Microstrip antenna | Dual frequency antenna | effect of gap coupling | bandwidth improvement technique.

Low cost, ease of fabrication and planar structure of microstrip antenna makes it very popular today. It is basically a metal patch over a dielectric substrate. Rectangular Microstrip antennas when separated by a suitable gap, dual frequency operation is obtained. A study on dual frequency operation of antenna for variable length and different array configurations are presented in this paper. Parametric studies for the effect of the gap and feed point location, along with radiation characteristics have been investigated.
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