CAAODT: Collaborated AOA and ASBO Optimization-Based Design Technique for Electrically Thick Circularly Polarized Rectangular Microstrip Antennas

Abstract

Circularly polarized antennas are crucial for wireless systems due to their effectiveness in avoiding fading and multi-path interference. However, existing design techniques lack flexibility for varying frequencies and are costly due to complex fabrication. To overcome those challenges, this paper intends to propose a new Collaborated AOA and ASBO optimization-based Design Technique (CAAODT)-based Circularly Polarized Rectangular Microstrip Antenna (MSA) design technique that improves performance and flexibility for these antennas. The optimization of design parameters such as radius, height, ground plane length, ground plane width, and thickness is achieved using a novel algorithm called the Collaborated AOA and ASBO optimization (CAAO). Here, AOA is called as Archimedes Optimization Algorithm. ASBO is called Average and Subtraction-Based Optimization. This tuning process considers constraints like Axial Ratio, gain, bandwidth, Voltage Standing Wave Ratio (VSWR), and return loss. The proposed optimal design model is validated against traditional methods based on gain, VSWR, return loss, bandwidth, and axial ratio across different frequencies.