REVIEW REFERENCE MODEL OF PROJECT PRESENTATION
- 1. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 1 First Review Major Project Winter Semester-2024-25 Department of Electronics and Communication Engineering Title: Date: Project Team Members 1. VTU NO(Name) 2. VTU NO(Name) 3. VTU NO(Name) Supervisor: Domain:
- 2. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 2 Content • Zeroth Review comments and Response • Literature survey • Proposed Methodology/Algorithm/Model • Design/Implementation & Description • Results and Discussion • Work to be Carried-out • References
- 3. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 3 Zeroth Review comments and Response • Issues concerning satellite antennas • Advantages of AMC-based antenna and their applications • Objective: • To design and simulate an artificial magnetic conductor- based printed antenna at Ku-band for satellite systems • To Model and optimize the antenna using HFSS software • To verify the antenna performance(BW, Gain and Directivity) • To develop a Prototype and validate the design
- 4. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 4 Literature survey Sl No Authors Title Journal Details with Year Study Inference 1 2 3 4
- 5. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 5 Proposed Antenna Configuration The conventional antenna consists of a square patch of size wa, loaded with a circular slot of radius, ra, and rectangular stubs at the sides of the patch whose length and width are characterized as ls1 and ws1. The antenna is designed to resonate at 16.5 GHz in the Ku band. FR4 material with a thickness of 1.6 mm and permittivity of 4.4 is used as a substrate. A coaxial probe feed feeds the antenna; the location of the feed is optimized at (0mm, 3 mm) to achieve impedance matching. The antenna dimensions are (in mm): wa=10, ra=2.5, ls1=4, and ws1=0.5.
- 6. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 6 Design equations Width of the patch length of the patch Effective length of the patch Effective permittivity of the substrate Differential length
- 7. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 7 Simulation Results It is obvious that the antenna exhibits an impedance bandwidth (IBW) of 1.16 GHz between 15.8917.05 GHz. The 3D polar plot gain depicts that the antenna has a peak gain of 5.18 dB at the operating frequency of 16.5 GHz. Reflection coefficient 3D polar plot
- 8. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 8 AMC unit cell design • To realize wide bandwidth and high gain, two different AMC structures named as AMC1 and AMC2 are arranged in a checkerboard fashion AMC-1 AMC-2
- 9. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 9 Reflection phase behaviour od the AMCs It can be seen that the AMC1 shows a single 00 reflection phase at 15.98 GHz, and AMC2 exhibits dual behavior at 14.57 and 18.90 GHz, respectively. The phase difference plot depicts a reflection phase bandwidth of 3.59 GHz (14.1317.72 GHz) within (1800 ±300 ) implying wide bandwidth behavior of the AMCs.
- 10. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 10 Proposed antenna with AMCs parameters Value (mm) parameters Value (mm) wa 10 l1 1.8 ls1 0.5 w1 0.5 ws1 4 w2 8 ra 2.5 ws 6.8 r1 3 ls 6.8
- 11. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 11 As can be observed, the proposed antenna with AMC tiles shows an impedance bandwidth of 2.56 GHz (14.817.4 GHz), which is about 1.4 GHz larger than the antenna without AMC (15.8917.05 GHz). The results also show that the AMC-based antenna has two resonant peaks due to the coupling between the patch antenna and AMC tiles. o It is revealed that the gain of the AMC-based antenna is increased greatly compared to the basic antenna in the whole band of operation. o The proposed antenna exhibited a peak gain of 7.6 dB and an average gain of 5.78 dB in the frequency range of 14.817.4 GHz.
- 12. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 12 Work to be Carried-out • Fabrication of the proto type and measurement • Validation of the proposed design
- 13. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 13 Conference communication proof
- 14. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 14 References
- 15. Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology 15