New expression for the resonance frequency of an E-shaped microstrip patch antenna

Abstract

The resonance frequency of an E‐shaped microstrip antenna has been calculated by equating its area to an equivalent area of a rectangular microstrip patch antenna. A new expression for effective dielectric constant is developed for the E‐shaped microstrip patch antenna. The new expression of resonance frequency is used to calculate the results, which are in good agreement with the measured and published results. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1561–1563, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21700

Notch antenna analysis: An expression for calculation of the operating frequency

“…In Refs. , formulation methods covering a series of complicated mathematical expressions which depends upon an approach of converting the area of Horn‐, E‐, H‐, and L‐shaped antennas to the area of equivalent rectangular antennas were proposed for calculating the operating frequency. This method is very time consuming and needs much effort to reach a solution.…”

ANFIS model for determining resonant frequency of rectangular ring compact microstrip antennas

“…Lately, compact microstrip antennas (CMAs) obtained by applying some modification on the structure of the conventional microstrip antenna like slot-loading, shorting-pin/wall and bending on the patch and/or ground have been proposed to cope the limitations aforementioned [1][2][3]. Several slot loaded CMA configurations such as shapes of C [4][5][6], E [7,8], H [4][5][6][8][9][10], L [8], rectangular ring [4], circular ring [11], arrow [12] and horn [8] have been presented in the literature as an alternative and effectively way to reduce the antenna size physically by increasing the effective resonant length.…”

“…The approximate resonant frequency formulas for C [4][5][6], H [4,6,9,10], circular ring [11] and arrow shaped [12] CMAs have been produced by deriving with the use of the simulations. The calculation of resonant frequency of E [7,8], H [8], L [8] and horn shaped [8] CMAs were achieved by converting the patch area of CMAs to an equivalent rectangular microstrip antenna (RMA) using the equivalent area method given in [7,8]. In another work [20], artificial neural networks (ANNs) were used to compute the resonant frequency of H-shaped CMA.…”

Modified resonant frequency calculation for E‐shaped and H‐shaped microstrip patch antennas

“…In this work, a continuous parameter genetic algorithm (CPGA) has been used to modify the resonant frequency expression of E‐shaped and H‐shaped microstrip patch antennas for improving the accuracy of the model given in Refs. 2 and3. Genetic algorithms (GAs) based on evolution and genetic recombination in nature are known as global optimization algorithms [4].…”