Resonant Frequency Calculation for Circular Microstrip Antennas With a Dielectric Cover Using Adaptive Network-Based Fuzzy Inference System Optimized by Various Algorithms

Abstract

Abstract-This paper presents a method based on adaptive-networkbased fuzzy inference system (ANFIS) to calculate the resonant frequency of a circular microstrip antenna (MSA) with a dielectric cover.The ANFIS is a class of adaptive networks which are functionally equivalent to fuzzy inference systems (FISs). Six optimization algorithms, hybrid learning, least-squares, nelder-mead, genetic, differential evolution and particle swarm, are used to determine optimally the design parameters of the ANFIS. The resonant frequency results predicted by ANFIS are in very good agreement with the results reported elsewhere. When the performances of ANFIS models are compared with each other, the best result is obtained from the ANFIS model optimized by the LSQ algorithm. 280 Guney and Sarikaya

Concurrent Neuro-Fuzzy Systems for Resonant Frequency Computation of Rectangular, Circular, and Triangular Microstrip Antennas

“…In our previous works [38][39][40][41][42][43][44][45][46][47][48][49][50], the methods based on genetic algorithm (GA) [38,39], tabu search algorithm (TSA) [40,41], ANN [42][43][44][45], and ANFIS [46][47][48][49][50] were used for calculating the resonant frequencies of various MSAs. It is well known that ANFIS can only produce single output.…”

Design and Analysis of Microstrip Line Feed Toppled T Shaped Microstrip Patch Antenna using Radial Basis Function Neural Network

“…The application of ANN on the field of microstrip patch antenna is very recent. A number of papers [28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44] are present in the literature that signifies the importance of ANN in the field of microstrip patch antenna.…”

Effect on Resonant Frequency for E-Plane Mutually Coupled Microstrip Antennas

“…The resonant frequencies in the even and odd resonant modes of half-wave-coupled and quarter-wavecoupled rectangular microstrip resonators were computed by Sharma and Bhat [4] with hybrid mode formulation of the spectral domain technique. Several authors [5][6][7][8][9] have carried out many interesting works on coupling. The aim of this paper is to derive a closed form expression for the resonant frequency of E-plane mutually coupled rectangular, square and circular microstrip antennas involving various antenna parameters along with a range of certain distances between the adjacent edges of the patches.…”