Surface Waves Investigation of a Bianisotropic Chiral Substrate Resonator

Abstract

Abstract-In this paper we studied the effect of a chiral-substrate bianisotropy on the surface waves of the microstrip resonator. The effective technique used to formulate the characteristic equations of the surface waves in a medium equipped with a complex anisotropy is presented and detailed. The equations concerning an evaluation of the cut-off frequencies are given in more detailed forms. A simple approximate formula for estimating the wave number of the surface mode TM 0 and TE 1 are obtained. An estimated maximum value of chiral slab thickness without the excitation of surface waves is given. All of our original results are compared with those published in the literature.

Analysis of the Combinatory Effect of Uniaxial Electrical and Magnetic Anisotropy on the Input Impedance and Mutual Coupling of a Printed Dipole Antenna

“…7). Using the explicit cut-off-frequency expressions given in [31], close values are obtained: 29.68 GHz (TM1 mode) for the first case and 44.754 GHz (TE1 mode) for the second case. Figs.…”

Theoretical Study of the Input Impedance and Electromagnetic Field Distribution of a Dipole Antenna Printed on an Electrical/Magnetic Uniaxial Anisotropic Substrate

“…They have attracted much interest and support from researchers and manufacturers as powerful instruments with interesting growth potential in microwave applications [12]. Many studies have been performed to characterize microwave structures printed on complex media, ferrites, metamaterials, chiral by employing numerical and analytical methods [11][12][13][14][15][16][17][18][19][20][21][22][23][24]. In [11], a detailed analytical model is derived for the circularly polarized slot antenna, built on a ferrite substrate.…”

“…In [16], a method based on the volume integral equation (VIE) is used to evaluate the electromagnetic (EM) fields scattered by general anisotropic multilayer structures. In [17,18], for a microstrip patch antenna, the effect of a bianisotropic gyro-chiral substrate on the complex resonant frequency, half-power bandwidth and input impedance, and on the surface waves is presented, respectively. The analysis is based on the full-wave spectral method of moments using sinusoidal basis functions.…”

Gyro-chirality effect of bianisotropic substrate on the operational of rectangular microstrip patch antenna

“…The effect of the chiral medium on the waveguides propagation was the subject of many researchers such as the electromagnetic propagation in waveguides filled with biisotropic/chiral materials were reported in the literature [22]- [28]; these media were also used in microstrip antennas not only to improve the resonant frequency and bandwidth but also reduce losses due to the surface waves radiation from microstrip antenna printed on a chiral substrate [17]…”