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International Journal of Engineering & Technology, 7 (4.5) (2018) 254-256 International Journal of Engineering & Technology Website: www.sciencepubco.com/index.php/IJET Research paper Design of a Circular Polarized Printed Rectenna for Satellite Solar Power Station Array Construction Deepak Kumar 1 *, Kalpana Chaudhary 2 1 Department of Electrical Engineering, Indian Institute of Technology (BHU) Varanasi 221005, India 2 Department of Electrical Engineering, Indian Institute of Technology (BHU) Varanasi 221005, India *Corresponding author E-mail: deepak.rs.eee14@itbhu.ac.in Abstract A circularly polarized single feed microstrip patch antenna with voltage doubler rectification is designed at 2.45 GHz for satellite solar wireless power transfer application. A bandpass filter is also designed and combined with an antenna that will efficiently eliminate signal harmonics up to third order. An HSMS-8202 microwave zero-bias Schottky barrier diodes accessible in SOT 23 package as the series pair is utilized in the proposed rectenna design. The rectenna has a high conversion efficiency of 70%. The printed rectenna can be inter- connected to construct the rectenna arrays. Keywords: Antenna; Bandpass filter; circularly polarized; schottky diode; Rectenna. 1. Introduction Remote power transmission is the transmission of electrical ener- gy from a power source to an electrical gadget without power cables. It is mainly helpful in situations where interconnecting wires are difficult, insecure, or implausible [1]–[3]. Over the last decade, satellite solar power station (SSPS) and microwave wire- less power transmission (WPT) have become an interesting topic for energy transmission in the future [4]. Since the execution of SSPS is fundamentally depended on the microwave production and transmission systems. Therefore, it requires microwave tech- nology innovations on a large scale [5]. In a satellite solar power station, space satellite collects sun irradiance and photovoltaic transform it into electrical energy. This electrical power is then transformed into the microwave and transmitting that microwave power remotely to receiving antenna on Earth [5]. The receiving antenna connected rectifiers are used to convert microwave power back to electrical power. In the SSPS application, there is the demand for high DC output and to collect more RF energy a rectenna array is required [6], [7]. Also, the rectenna array that is capable of rectifying low microwave power is required. The rectenna array can be designed by utilizing different interconnec- tions of rectenna components, and every association has its har- vesting characteristic [8]. A few rectifier circuit investigation models have been proposed to analyze the rectenna performance [8]. It is not easy to develop an accurate model due to the non- linear property of the diode [9]. It may be a linear circuit model or a nonlinear circuit model that can be utilized to predict the recten- na performance [9]. The rectenna is the combination of antenna and rectifier, and it is the most important part of the application of microwave wire- less power transmission [4], [9]. The rectenna has been effectively utilized for a ground-to-ground demonstration of wireless power transmission. However, the technology advancement for space to ground power transmission is in the development stage. Wireless power transmission was explored and reviewed in [1]–[3]. A novel rectenna is reported in [7], it is made of a circularly polarized (CP), multi-band ring slot receiving antenna. It has been found useful in the application for versatile remote gadgets. In the other work, an antenna combined with a harmonic filter in the form of the circular sector is presented in [10]. The antenna with self- filtering capability can eliminate the use of the low-pass filter connection in between the antenna and rectifying diode. A rectan- gular patch microstrip antenna with a high gain is designed using coplanar waveguide (CPW) in [11]. The CPW rectenna configura- tion is very useful, and it‟s size reduced in comparison with two element microstrip patch antenna. In recent times, it has been shown that a CP antenna characteristic is essential for designing SSPS ground rectenna because in CP output voltage is not changed because of the revolution of the transmitter or receiver. This work presents a CP printed rectenna circuit. The proposed rectenna in array form can be utilized in SSPS applications. This will provide a high opportunity for the flexible positioning of the rectenna cluster system. Therefore the losses due to the misalign- ment between transmitting antenna and receiving antennas can be reduced. Microstrip patch realization is suitable for compact rectenna design, and most important the printed technology will provide identical rectennas for efficient array development. Fig. 1: A CP 2.45 GHz voltage doubler rectenna design layout