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Ingeniare. Revista chilena de ingeniería

versión On-line ISSN 0718-3305


CEPERO, K; MEDIAVILLA, A; TRIBAK, A  y  MARANTE, F. Broadband diplexer design based in waveguide technology for satellite applications. Ingeniare. Rev. chil. ing. [online]. 2012, vol.20, n.2, pp. 191-196. ISSN 0718-3305.

A wideband diplexer in waveguide technology is designed to demonstrate the feasibility of using stepped waveguide junctions for diplexer designs. It consists of a channel filter, a low pass filter and a T E-plane junction. To validate the previous concepts, a C-band diplexer was constructed and tested using conventional milling techniques. The relative bandwidth of the whole diplexer is about 64%. The inputs and outputs return losses were less than 23dB, the isolation is better than 60dB and the transmission loss was 0,1dB. Moreover, a manufacturing tolerance has been taken into account at the design step, and therefore, the designed diplexer need not be tuned after manufacture.

Palabras clave : Antenna feeders; satellite communications; diplexer; wideband; waveguide.

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