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Transactions: WSEAS TRANSACTIONS ON COMMUNICATIONS
Transactions ID Number: 27-231
Full Name: Raghavan Singaravelu
Position: Professor
Age: ON
Sex: Male
Address: Department of Electronics and Communication, National Institute of Technology, Tiruchirappalli
Country: INDIA
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E-mail address: raghavan@nitt.edu
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Title of the Paper: Microstrip Patch Antenna for a Retinal Prosthesis and Rf Mems Technology
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Number of paper pages: 10
Abstract: This paper is about the investigation of a novel approach for establishing a data telemetry link in a dual-unit retinal prosthesis at microwave frequencies (1.4GHz and 2.35GHz) using a pair of Microstrip patch antennas. Approximately sized extraocular (25 mm x 25 mm) and intraocular (6 mm x 6 mm) antennas are simulated using IE3D and compared with reference experimental results which was designed and fabricated using the Finite Difference Time Domain Method. Simulation results show frequency shift in the resonant frequency by changing the capacitor height from 2 ìm to 1 ìm. However, the major drawback of this configuration is as Microstrip antenna is loaded with radial stub, which makes the structure is not suitable for loading with large number of capacitors. Because the dimensions of the radial stub determine the separation between the MEMS capacitors. Hence, the overall dimensions of the structure grow as more MEMS capacitors are used for loading, which is a pro!
blematic issue in terms of fabrication.
Keywords: Epiretinal, Subretinal, Telemetry link, Retinal Prosthesis
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