DESIGNING OF TWO ELEMENT PARTIALLY HEXAGON ANTENNA WITH IMPROVED ISOLATION

International Journal of Engineering Science Invention Research & Development; Vol. IV, Issue IV, OCTOBER 2017 www.ijesird.com, E-ISSN: 2349-6185 DESIGNING OF TWO ELEMENT PARTIALLY HEXAGON ANTENNA WITH IMPROVED ISOLATION Roshani Patidar#, Prof. Vijay Bisen * # 1 Electronics & Communication Department, Indore 2 patidar.rashi@gmail.com, bisen5785@gmail.com, Abstract: In the recent years the development in communication systems requires the development of low cost, minimal weight, low profile antennas that are capable of maintaining high performance over a wide spectrum of frequencies. In this thesis, the 2X1 Hexagonal shape designs of a Micro strip patch antenna have been analyzed and studied. The designed having resonant frequencies 2.4 GHz for wireless communication standards. The proposed patch antenna is designed and simulated on CST microwave studio simulation software and it is designed to operate in 2.4 GHz,. The good return loss, isolation, ECC and bandwidth of 50 MHz found. Keyword: MPA, MIMO, ECC, VSWR, FR4. 1.1 INTRODUCTION An Antenna is one of the essential parts for microwave communication. Since it help both transmitting and receiving the information. Antenna is a transducer which converts the voltage and current on a transmission line into an electromagnetic field which consists of an electric and magnetic field travelling right angles at each other. Micro strip patch antenna is a small size antenna and it can be printed directly on a circuit board. Micro strip patch antennas due to their many attractive features have drawn attention of industries for an ultimate solution for wireless communication [1]. It is analyze that the patch is generally square, rectangular, circular, triangular, and elliptical or some other common shape. The most commonly employed micro strip patch antenna is a rectangular patch. The rectangular patch antenna is a one wavelength long section of rectangular microstrip transmission line. When the air in the antenna substrate the length of the rectangular microstrip antenna is approximate one half of a free space wavelength. The antenna consists of a dielectric as its substrate the length of the antenna decreases as Roshani Patidar and Prof. Vijay Bisen the relative dielectric constant of the substrate increases the proper miniaturized antenna will improve the transmission and reception [1]. Antennas play a very important role in the field of wireless communication. Few of them are Parabolic Reflector, Patch Antennas, Slot Antennas, and Folded Dipole Antennas. Each type of antenna is good in their own properties and usage. It is said that the antennas are backbone in the wireless communication without which the world could have not reached at this age of technology [2]. Patch antennas play a very significant role in today’s world of wireless communication. A Microstrip patch antenna is very simple in the designing & using a conventional Microstrip fabrication technique. The most commonly used Microstrip patch antennas are rectangular and circular patch antennas. Some important phenomena like dual characteristics, circular polarizations, dual frequency operation, frequency agility, broad band width, feed line flexibility, beam scanning can be easily obtained from these patch antennas [2]. 1.2 DESIGN OF ANTENNA Table 1.2 Dimension of Design ijesird, Vol. IV, Issue IV, October 2017/169 International Journal of Engineering Science Invention Research & Development; Vol. IV, Issue IV, OCTOBER 2017 www.ijesird.com, E-ISSN: 2349-6185 The front view of proposed antenna is given in figure 1 and back side is represented in figure 2. The antenna design geometry is given in figure 3 where first full hexagon structure is designed and then cut of hexagon is created. element is symmetrical so S11=S22 and S21=S12. The bandwidth obtained as 50 MHz. The ECC found less than 0.5 between antennas. The s-parameter graph and bandwidth graph, ECC and Surface corrent presented in figure 4, 5, 6 and 7. Figure 1 Front View of designed antenna Figure 4. S-Parameter of design antenna Figure 2 Back View of designed antenna Figure 5 Bandwidth of design antenna (a) (b) Figure 6 ECC of design antenna (c) Figure 3. Complete design geometry 1.3 RESULT AND DISCUSSION The design antenna produced return loss of 14 db with -19 db of isolation. As the both antenna Roshani Patidar and Prof. Vijay Bisen Figure 7 Surface current 1.4 CONCLUSION ijesird, Vol. IV, Issue IV, October 2017/170 International Journal of Engineering Science Invention Research & Development; Vol. IV, Issue IV, OCTOBER 2017 www.ijesird.com, E-ISSN: 2349-6185 A Hexagon cut micro strip patch antenna is designed with full ground simulated using the CST Studio Suite software. The antenna is designed for frequency 2.4 GHz with FR-4 substrate (εr =4.3), h=1.524mm. 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[10] Weiye Li1, Wenbin Lin1, *, and Guangli Yang , “A Compact MIMO Antenna System Design with Roshani Patidar and Prof. Vijay Bisen ijesird, Vol. IV, Issue IV, October 2017/171