IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-ISSN: 2278-2834,p- ISSN: 2278-8735.Volume 9, Issue 4, Ver. I (Jul - Aug. 2014), PP 37-41 www.iosrjournals.org www.iosrjournals.org 37 | Page Performance Analysis of Rectenna Using Closed Form Equation M.N.V Pavan Kumar, K. Avinash Kumar, Dr. CH. Srinivasu Asst. Prof, Dept of ECE, Dadi institute of Engg. and Tech., Anakaplle Asst. Prof, DIET, ANKAPALLE Principal, DIET, Anakapalle Abstract: Electromagnetics has an important role in power and energy industry. In this paper, the concept of rectenna is introduced firstly. The times past of rectenna for wireless energy harvesting and transmission is then reviewed. Finally examples are employed to illustrate some rectenna design and measurement issues such as rectenna impedance matching and its conversion efficiency. It isalso shown that rectennas can harvest wireless energy efficiently under certain conditions and have the potential to become a power supplier for some special applications. A high-efficiency rectenna component has been calculated and experienced at 6.2 GHz planned for applications involving microwavepower show. The dipole mast and filtering circuitry are printed on a thin duroid substrate. A silicon Schottky barrier mixer diode with a low fail voltage is used as the rectifying device. The rectenna component is tested inside a waveguide simulator and achieves an RF-to-dc conversion efficiency of 85% at an input power level of 55-mW and 347-load. Closed-form equations be agreed meant for the diode efficiency and effort impedance as a sense of payment RF power. Measured in addition to intended efficiency results are in first-class agreement. The mast and circuit design are base on a full-wave electromagnetic simulator. Next harmonic power levels are 19 dB down from the primary input power. Keywords: Microwave Power, rectanna, RF Power, Electromagnetics I. Introduction In the quest of green energy, scientists have been in the pursuit of converting deep space solar energy into high power microwave energy. This microwave energy is transmitted to the earth by a high gain parabolic reflector and received and converted to DC power with rectenna [1]. Scientists believe that within the next few decades this method will solve world’s energy crisis significantly and becomean alternative energy source for developing countries those cannot effort conventional energy sources. Rectenna is defined as rectifying antenna. A rectenna is capable of receiving microwave energy from space and converting the received microwave power back to usable low frequency or DC power. A basic rectenna consists of an antenna, a diode rectifier and a dc bypass filter. This work presents a rectenna designed at 2.4 GHz unlicensed band. The development starts with the design of microstrip patch antenna, followed by the design ofa diode rectifier and a lowpass filter (LPF). The final output of the rectenna is dc power. The high transmitted microwave power is captured by alargearrayantenna. The antenna element of the array is an aperture joined microstrip patch antenna (AJMPA). The AJMPA is the most suitable candidate due to its low profile, light weight, better power handling capability in an array, each of integration with active devices, isolation between feedlines and antenna radiators. Fig 1 Schematic of rectenna Figure 1shows the total diagram illustration of a generic rectanna. Once the microwave authority is received by the individual transmitter, it passes on or after end on the road to end the important frequency rectify diodes. A HSMS 8202 Schottky diode is used to convert lofty frequency power to DC electrical energy. The diode has a adaptation gain of 0.44. After the victorious mean of ACMPA, the antenna is included with the