Abstract:Abstract-In this paper, we have simulated a single-pin-shorted microstrip line fed three-dielectric-layer (with different permittivity and thickness) rectangular patch microstrip antenna for all those communication systems whose limited antenna size is premium. Low permittivity hard foam has been used as one substrate to achieve wide bandwidth. The simulation of this proposed antenna has been performed by using CST Microwave Studio, which is a commercially available electromagnetic simulator based on the finit… Show more
“…However dipole antennas are inseparable part from any antenna textbook but they still form foundations of the researches of the scientists so that could be found in recent papers [5][6][7][8][9][10]. Microstrip and patch antennas have been presented later than dipoles and there are many discussions and different analyses in antenna books but we observe them daily with their novel configurations and new performances in papers [11][12][13][14][15][16][17][18][19][20]. …”
IT&MMWAVES Company MalaysiaAbstract-In this paper new array element for use in dual band dual polarized antenna will be introduced that has high efficiency (more than 95%) and has high isolation in both 900 MHz and 1800 MHz bands. Also radiation pattern of this antenna is according to IEC recommendation.
“…However dipole antennas are inseparable part from any antenna textbook but they still form foundations of the researches of the scientists so that could be found in recent papers [5][6][7][8][9][10]. Microstrip and patch antennas have been presented later than dipoles and there are many discussions and different analyses in antenna books but we observe them daily with their novel configurations and new performances in papers [11][12][13][14][15][16][17][18][19][20]. …”
IT&MMWAVES Company MalaysiaAbstract-In this paper new array element for use in dual band dual polarized antenna will be introduced that has high efficiency (more than 95%) and has high isolation in both 900 MHz and 1800 MHz bands. Also radiation pattern of this antenna is according to IEC recommendation.
“…The electromagnetic fields excited by a dipole source in a layered dissipative medium structure have been investigated widely because of their applications in Through-the-Earth communication, underwater communication, ground penetrating radar technology, and antenna design [1][2][3][4][5][6]. The developments in electromagnetic field propagation in layered medium structures have been analyzed by many investigators, including Wait [7][8][9] and King [7,10,11] who proposed the asymptotic methods, and the surface-impedance technique has been used for a two-layered region.…”
Abstract:In this paper, a novel method based on the Poggio-Miller-Chang-Harrington-Wu-Tsai (PMCHWT) integral equation is presented to study the electromagnetic fields excited by vertical or horizontal electric dipoles in the presence of a layered region which consists of K-layered dissipative media and the air above. To transform the continuous integral equation into a block tridiagonal matrix with the feature of convenient solution, the Rao-Wilton-Glisson (RWG) functions are introduced as expansion and testing functions. The electromagnetic fields excited by an electric dipole are calculated and compared with the available results, where the electric dipole antenna is buried in the non-planar air-sea-seabed, air-rock-earth-mine, and multilayered sphere structures. The analysis and computations demonstrate that the method exhibits high accuracy and solving performance in the near field propagation region.
“…In the short range communications or contactless identification systems, antennas are key components, which must be small, low profile, and with minimal processing costs [1,2]. The microstrip patch antennas are of great interest for aforementioned mentioned applications due to their thin and compact structures.…”
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