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PIER PIER B PIER C PIER M PIER Letters
2009-02-10
Modified TEM Horn Antenna for Broadband Applications
By
Ali Reza Mallahzadeh,

    Dr. Ali Reza Mallahzadeh

    Iran University of Science and Technology

    Iran

    Homepage

Fardad Karshenas

    Dr. Fardad Karshenas

    Faculty of Engineering

    Shahed University

    Iran

    Homepage

Progress In Electromagnetics Research, Vol. 90, 105-119, 2009
doi:10.2528/PIER08123106
Abstract
This paper presents a novel method to enhance the pattern characteristics of the TEM horn antenna for 2-14 GHz frequency band. The conventional TEM horn antenna introduces some fluctuations in the main lobe radiation pattern over the higher frequencies, i.e., 10-14 GHz. This motivated us to propose a new method to remove the aforementioned impact by carving an arc shape to the open end of exponentially tapered plates. The associated curvature of this arc is optimized to completely remove the aforementioned fluctuation. The measurement results show that the improved TEM horn antenna structure exhibits low VSWR as well as good radiation pattern over 2-14 GHz frequency band.
Citation
Ali Reza Mallahzadeh, and Fardad Karshenas, "Modified TEM Horn Antenna for Broadband Applications," Progress In Electromagnetics Research, Vol. 90, 105-119, 2009.
doi:10.2528/PIER08123106
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