Darcel, L. ; Duême, P. ; Funck, R. ; Alquié, G.
(2004)
A new Methodology for achieving MMIC Bandpass
Active Filters at High Frequencies.
In: Gallium Arsenide applications symposium. GAAS 2004, 11—12 Ottobre, Amsterdam.
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Abstract
This paper presents a new methodology
based on actively coupled resonators, for achieving
microwave active filters. In this method, which lends itself
to narrowband and wideband filtering applications, we
associate core cells with different resonance frequencies,
adjusted separately, to synthesise a Butterworth, Chebyshev
or other all-pole approximation. Two 1-pole bandpass filters
centred at 9GHz, with 3dB bandwidth of 500 MHz, high
gain of 17 dB and 21 dB, including a very low-noise active
filter which exhibits a noise figure of 1.7 dB are realised in a
first part. A 3-pole bandpass filter centred at 12GHz is also
presented to validate this method, it has a gain of 15.5 dB ±
0.2 over a 1.5 GHz bandwidth and rejections better than 60
dB at 7 GHz and 18 GHz.
Abstract
This paper presents a new methodology
based on actively coupled resonators, for achieving
microwave active filters. In this method, which lends itself
to narrowband and wideband filtering applications, we
associate core cells with different resonance frequencies,
adjusted separately, to synthesise a Butterworth, Chebyshev
or other all-pole approximation. Two 1-pole bandpass filters
centred at 9GHz, with 3dB bandwidth of 500 MHz, high
gain of 17 dB and 21 dB, including a very low-noise active
filter which exhibits a noise figure of 1.7 dB are realised in a
first part. A 3-pole bandpass filter centred at 12GHz is also
presented to validate this method, it has a gain of 15.5 dB ±
0.2 over a 1.5 GHz bandwidth and rejections better than 60
dB at 7 GHz and 18 GHz.
Document type
Conference or Workshop Item
(Paper)
Creators
Subjects
DOI
Deposit date
15 Jun 2005
Last modified
17 Feb 2016 14:11
URI
Other metadata
Document type
Conference or Workshop Item
(Paper)
Creators
Subjects
DOI
Deposit date
15 Jun 2005
Last modified
17 Feb 2016 14:11
URI
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