• Anand Mohan

In this research work we have studied about radio frequencies, antennas represent the fundamental tool allowing the connection of sub-wavelength regions of space where sources or receivers are located with far-field radiation field. While antennas are ubiquitous in today’s wireless web world of communications, the idea of being able to efficiently connect sub wavelength sources to the far field is also very appealing in mid-infrared optics. The classical laws of electromagnetism, as expressed by Maxwell–Heaviside’sequations.which allows the translation of concepts and designs from a frequency region of the electromagnetic spectrum to another one by properly scaling all of the involved dimensions relative to the wavelength. These ideas allow us to envision antenna technology at higher frequencies, and, thanks to recent advances in nanotechnology, large research efforts have recently been devoted to designing and fabricating nanoscale antennas that operate at optical frequencies, greatly extending the reach of the century-old antenna technology. However, while Maxwell’sequations do not change as the frequency is varied, the same is not true for the electromagnetic properties of matter. The drastically different response of materials at these frequencies offers new challenges for antenna engineers and, at the nano range, it has great applications for the field of bio- molecules/Biomedical in parterns.The Biochips will allow faster and better sensation in a time in critical situation. biotechnology consisting of variety of techniques including the use of living organisms & their manipulation.

Nanotechnology, antenna engineers, nanoelectronics, wireless communication, radio-frequency, nano-antennas

"OPTICAL ANTENNAS: An Antenna Which Operate Optical Devices at Optical Frequencies Regime", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 3, page no.352-354, March-2017, Available :http://www.jetir.org/papers/JETIR1703069.pdf

"OPTICAL ANTENNAS: An Antenna Which Operate Optical Devices at Optical Frequencies Regime", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 3, page no. pp352-354, March-2017, Available at : http://www.jetir.org/papers/JETIR1703069.pdf