Optimum design of a multifin coaxial converter

Hao-Ming Shen; Tai Tsun Wu

doi:10.1117/12.147483

8 July 1993 Optimum design of a multifin coaxial converter

Hao-Ming Shen, Tai Tsun Wu

Proceedings Volume 1872, Intense Microwave Pulses; (1993) https://doi.org/10.1117/12.147483
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

In this paper, the design and properties of a multi-fin coaxial waveguide converter are examined in detail. The converter has been designed as a means of transferring power from a high-power Relativistic Klystron Amplifier (RKA) to an antenna system. The output from an RKA is a coaxial waveguide, but the radially polarized TEM mode propagating in a coaxial line is not suitable for radiation. In order to transmit high electromagnetic (EM) power to the elements of a transmitting antenna, the polarization of the electric fields in the feeding waveguide should be parallel. A rectangular waveguide excited in the H_1,0-mode has such a linear polarization. Therefore, it is necessary to provide a suitable matching transformer between the coaxial and rectangular waveguides. The purpose of the transformer is to convert the TEM mode in the coaxial line into the H_1,0-mode in a number of rectangular waveguides. These are then connected to the antennas.

Citation Download Citation

Hao-Ming Shen and Tai Tsun Wu "Optimum design of a multifin coaxial converter", Proc. SPIE 1872, Intense Microwave Pulses, (8 July 1993); https://doi.org/10.1117/12.147483

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