Miniature bandpass microwave filter with interference suppression by more than 100 dB in a wide rejection band

Тип публикации: статья из журнала

Год издания: 2013

Идентификатор DOI: 10.1134/S1063785013080026

Аннотация: A new planar resonator design in which a single conductor is replaced by three parallel stripe conductors located one above the other on a suspended two-layer substrate is proposed. It is shown that the resonator longitudinal sizes can be significantly reduced and, at the same time, the resonator intrinsic Q factor and frequencies of higher oscillation modes can be increased. A fourth-order bandpass filter with a central frequency of the transmission band (relative width 5%) of 1 GHz has been developed and fabricated. This filter has a -100-dB rejection band up to frequencies exceeding 10 GHz. The filter is enclosed in a metallic case with an internal size of 38 x 12 x 7.5 mm. It is shown that a similar filter fabricated in accordance with low-temperature cofired ceramic (LTCC) technology has a -40-dB rejection band up to 30 GHz, with sizes reduced to 5.0 x 4.25 x 1.24 mm.

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Издание

Журнал: TECHNICAL PHYSICS LETTERS

Выпуск журнала: Vol. 39, Is. 8

Номера страниц: 690-693

ISSN журнала: 10637850

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Belyaev B.A. (Siberian Federal University; Siberian State Aerospace University; Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences; Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences)
  • Serzhantov A.M. (Siberian Federal University; Siberian State Aerospace University; Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences)
  • Tyurnev V.V. (Siberian Federal University; Siberian State Aerospace University; Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences)
  • Leksikov A.A. (Siberian Federal University; Siberian State Aerospace University; Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences)
  • Bal'va Y.F. (Siberian Federal University; Siberian State Aerospace University; Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences)

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