A novel wideband MMIC voltage controlled attenuator with a bandpass filter topology

Doud, Scarlet M. ; Shastry, Prasad N. (2005) A novel wideband MMIC voltage controlled attenuator with a bandpass filter topology. In: Gallium Arsenide applications symposium. GAAS 2005, 3-7 ottobre 2005, Parigi.
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Abstract

The design and analysis of a novel wideband, monolithic, bandpass, π-network, voltage controlled attenuator (VCA) is presented. A 24 to 32 GHz VCA was developed using 0.15μm GaAs pHEMT technology. This is the first reported VCA to use a bandpass filter topology to achieve the required operating frequency band and eliminate the effects of parasitic capacitances of the pHEMTs. The bandpass filter absorbs the parasitic capacitances and thereby eliminates their detrimental effects. The measured attenuation dynamic range is 12dB ± 0.5dB with minimum insertion loss of 2-3dB. The input power handling capability is up to 0dBm. The VCA is well matched and may be placed in a 50Ω system [1].

Abstract
Tipologia del documento
Documento relativo ad un convegno o altro evento (Atto)
Autori
AutoreAffiliazioneORCID
Doud, Scarlet M.
Shastry, Prasad N.
Settori scientifico-disciplinari
DOI
Data di deposito
15 Feb 2006
Ultima modifica
17 Feb 2016 14:27
URI

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