Study of Band Millimeter Wave Antipodal Tapered Slot Antennas – Portable and High Gain

Millimeter wave applications such as automobile radar, high definition video, and high resolution photography are using more and more high gain directional antennas. The wide bandwidth, high gain, and linear polarization of the Vivaldi antenna, often called the Tapered Slot Antenna TSA , make it a viable substitute. However, there are design constraints such as eliminating external circuitry for space constrained applications and enhancing gain without increasing area. The goal of this study is to provide low profile, antipodal tapered slot antennas that are easier to integrate into systems at the system level and have better gain and radiation characteristics. A metamaterial loaded Antipodal Elliptically Tapered Space Antenna AETSA with a high gain and small dimensions is proposed in the thesis for the 20–40 GHz frequency range. The AETSA incorporates an Isosceles Trapezoidal Dielectric Lens ITDL to increase gain by 1.1 dB. It is built on an RT Duroid 5880 substrate. The ITDL is equipped with a new kind of broadband metamaterial that improves gain and stabilizes radiation pattern without increasing the antennas size. The antenna shows improved gain and respectable impedance matching across 20–40 GHz. This work aims to improve the gain and radiation characteristics of the antipodal elliptically tapered slot antenna. Two proposed designs are the modified Antipodal Tapered Slot Antenna ATSA and the modified Antipodal Elliptically Tapered Slot Antenna MAETSA . A constant radiation pattern over the 20–40 GHz frequency range is produced via a special transition between the MAETSAs feed and taper portions. By 0.3 dB across the higher frequency band, the antenna gains. In addition, the ATSA is small and adds 1.66 dB over the working spectrum. After testing and fabrication, case studies show that the prototype is suitable for millimeter wave imaging systems. The main objective of the thesis is the design of an antipodal tapered slot antenna for space constrained broadband millimeter wave applications. It proposes two distinct antenna designs one with a bandpass filter based on Half Mode Substrate Integrated Waveguide HMSIW and the other with rectangular corrugations. In order to regulate the band throughout a frequency range of 21.6–40 GHz, the first design employs a periodic structure with three horizontal slots and two gaps. Rectangular corrugations and an RSITSV bandpass filter optimized by a single parameter are used in the second design. across 23.5–25 GHz, the antenna with an integrated bandpass filter exhibits a gain variation of 1.53 dB, and across 25–40 GHz, the gain is almost constant at 11–11.92 dB. Deeksha Singh | Burla Sridhar | Vishwajeet Kumar "Study of Band Millimeter Wave Antipodal Tapered Slot Antennas – Portable and High Gain" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-2 , April 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64776.pdf Paper Url: https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/64776/study-of-band-millimeter-wave-antipodal-tapered-slot-antennas-–-portable-and-high-gain/deeksha-singh