Analysis and Design of Capacitive Coupled Wideband Microstrip Antenna in C and X band
Sandeep Kumar1, Manish Rai2, Raj Kumar3, Jayanta Ghosh4
1Sandeep Kumar, Electronics & Communication Department, National Institute of Technology Patna, India.
2Manish Rai, Electronics & Communication Department, National Institute of Technology Patna, India.
3Raj Kumar, Electronics & Communication Department, National Institute of Technology Patna, India.
4Dr. Jayanta Ghosh, Electronics & Communication Department, National Institute of Technology Patna, India.
Manuscript received on March 02, 2013. | Revised Manuscript received on April 13, 2013. | Manuscript published on April 30, 2013. | PP: 836-839 | Volume-2, Issue-4, April 2013. | Retrieval Number: D1564042413/2013©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In this paper design and analysis of capacitively fed wideband microstrip antenna suspended above the ground plane is presented. It is demonstrated that the proposed antenna can be used for wideband application with impedance bandwidth of about 51.13% at center frequency 7.255 GHz with a good gain in various microwave bands (C and X band). This antenna has utilized the concept of capacitive coupling for bandwidth enhancement. Suspension of structure above ground plane has also been utilized for the enhancement of bandwidth. In this proposed antenna probe feeding is provided to the feed strip and the parasitic patch is excited by the capacitive coupling. The antenna configuration can be used where unidirectional radiation patterns are required over a wide bandwidth. All the simulation work is done using IE3D software.
Keywords: Microstrip antennas, Capacitive fed, Wideband, Absolute gain, Efficiency.