List of Articles Broadband

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  1 - Broadband H-Plan SIW Power Divider with Adjustable Output Powers
  Pejman Mohammadi
  10.30495/jce.2023.1975061.1180
  Design and realization of a broadband H-plane Substrate Integrated Waveguide (SIW) power divider with equal and unequal output powers is presented. The configuration of the proposed structure is based on the three equal width SIW lines. In proposed SIW power divider sep More

  Design and realization of a broadband H-plane Substrate Integrated Waveguide (SIW) power divider with equal and unequal output powers is presented. The configuration of the proposed structure is based on the three equal width SIW lines. In proposed SIW power divider septum has been realized with a row of metalized vias. The inclusive input bandwidth in the proposed structures is achieved due to the proper septum design. The output powers are controlled with the septum offset. The parametric analysis shows that the magnitude of outputs could be adjusted with septum offset and the width of SIW could control the cutoff frequency. Power flow from input port toward output port confirm the proposed design concept. Two SIW H-plane power dividers with the same and different outputs have been designed and produced. There are good agreements between simulation and measurement results for both structures. The input impedance bandwidth for equal and unequal prototypes is 3.4 GHz and 2 GHz respectively. Manuscript profile
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  2 - Design and Simulation of a Sample of Integrated Broadband Antenna and Omni-Directional for Marine Floats
  Maisam Vaheb Ali Hashemi Hossein Emami Mahdi Emami
  Nowadays one of the specialized and important issues in construction of marine floats is to design the communication telecom system between them. Always this issue has been posed how to establish an appropriate communication for floats in different distances and differe More

  Nowadays one of the specialized and important issues in construction of marine floats is to design the communication telecom system between them. Always this issue has been posed how to establish an appropriate communication for floats in different distances and different weather conditions in the sea. Due to the restrictions, such as equipment size, weight bearing on the floats has always existed.One of the main parts of telecom communication system is antenna.The main problem, use antennas and Towers various in floats, As required, waves with different wavelength sand different routes to be published. If the antenna can be designed with small dimensions and possible,wide frequency range and also covered omni-directions, the problem has been mentioned above somewhat is resolved. The purpose of this paper is to design and simulate of a sample of integration broadband antenna and omni-directional, that resolve About restrictions above and Integration of two antennas in frequency range of VHF/UHF=150-450MHZ and HF=3-30MHZ with characteristics of 50ohm input impedance, linear vertical polarization, VSWR<2.5, antenna gain ranges between (-12)dBi to (4.8)dBi, the maximum antenna diameter of 18cm, and the maximum height of opened antenna of 538.2cm. Manuscript profile
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  3 - An Investigation of LTE Broadcast
  H. Khanmirzaei Gh. Farsi V. Asgari Azad
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