Design of H‐shaped microstrip patch antennas

Abstract

Based on the symmetric properties of the antenna, the design equations for the first four mode frequencies are derived. A design methodology for an antenna operating at 2.45 GHz is presented. Two antennas have been designed and tested, and good agreement among the predicted, simulated, and measured results is obtained. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 791–795, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22269

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

“…2) given in Ref. 2 are modified as where h i ( i = 1,2,3,4,5) are constants. W a (current path length) and the formulas for the calculations of ε reff1 , ε reff2, L a , and L b are given in Ref.…”

“…W a (current path length) and the formulas for the calculations of ε reff1 , ε reff2, L a , and L b are given in Ref. 2. L c is calculated by where and the equations for Z 1 , Z 3 , and W 3 are given in Ref.…”

“…Some methods for the determination of the resonant frequencies for the E‐shaped and H‐shaped antennas are presented in the literature [1, 2]. 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.…”

“…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].…”

A new approach to the design of a compact high efficiency active integrated antenna

“…A new explicit matrix input impedance formula was used to determine the probe feed location [7]. Also the design approach to obtain the dimensions of the antenna is presented in [8].…”