Study on Dual Band Double Layered Substrate Microstrip Fork Antenna
P. Gowtham Kumar1, P. Chandrasekhar2, K. V. R. S. Santhosh3

1P. Gowtham Kumar, Gitam Institute of Technology, GITAM University, Visakhapatnam, Andhra Pradesh, India.
2P. Chandrasekhar, Member IEEE, Department of ECE, GITAM University, Visakhapatnam, Andhra Pradesh, India.
3KVRS. Santhosh, Gitam Institute of Technology, GITAM University, Visakhapatnam, Andhra Pradesh, India.
Manuscript received on March 01, 2015. | Revised Manuscript Received on March 09, 2015. | Manuscript published on March 20, 2015. | PP: 28-30 | Volume-3 Issue-4, March 2015 | Retrieval Number: D0599033415/2015©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: The design of dual band double layered substrate fork shaped microstrip antenna has been proposed. The proposed antenna operates in Ku Band and can be used in satellite communications particularly for editing and broadcasting satellite television. The dimensions of this antenna are 40 x 40 x (h+h1) mm, where h=0.8mm is the thickness of substrate1 and h1=2mm is the thickness of substrate2 and h+h1 is the total thickness of the substrate. FR4 (lossy) material is used as substrate1 and RogersRT6006 (lossy) material is used as substrate2. Copper (annealed) metal is used as both ground plane and the patch. The proposed antenna operates at two frequencies and the frequencies are 14.33 and 13.823GHz. The return losses are -46.319426dB and -40.421846dB at frequencies 14.33 and 13.823GHz. The directivities of the proposed antenna are 8.001 and 7.962dBi at frequencies 14.33 and 13.823GHz.
Keywords: Antenna, fork antenna, Dual Band, Double Substrate, Return Loss, VSWR, Directivity.