Some limiting factors for the noise optimization of recursive active microwave integrated filters

Malmqvist, R.; Danestig, M.; Rudner, S.; Svensson, Christer

doi:10.1002/(sici)1098-2760(19990805)22:3<151::aid-mop2>3.0.co;2-3

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Design Example: Tunable Band Passfilter1

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Cited by 6 publications

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“…Active recursive bandpass filters are interesting for microwave applications [14,15]. A traditional recursive bandpass filter is accomplished according to the model in Figure 12.8.…”

Section: Design Example: Tunable Band Passfiltermentioning

confidence: 99%

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Reconfigurable RF Circuits and RF‐MEMS

Malmqvist

Ouacha

Kaynak

et al. 2012

Microwave and Millimeter Wave Circuits and Systems

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“…Active recursive bandpass filters are interesting for microwave applications [14,15]. A traditional recursive bandpass filter is accomplished according to the model in Figure 12.8.…”

Section: Design Example: Tunable Band Passfiltermentioning

confidence: 99%

“…15 Different oscillator configurations in a PROMFA cell: (a) a single unit cell oscillator and (b) using four oscillators in a ring. Reproduced from[16] with permission from LiU-Tryck Linköping University Sweden.…”

mentioning

confidence: 99%

Reconfigurable RF Circuits and RF‐MEMS

Malmqvist

Ouacha

Kaynak

et al. 2012

Microwave and Millimeter Wave Circuits and Systems

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An Active Recursive RF Filter in 0.35 μm BiCMOS

Andersson

Svensson

2005

Analog Integr Circ Sig Process

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An active recursive filter approach is proposed for the implementaion of an inductorless, tuneable RF filter in BiCMOS. A test circuit was designed and manufactured in a 0.35 m SiGe BiCMOS technology. In simulations, the feasibility of this type of filter was demonstrated and reasonably good performance was obtained. The simulations show a center frequency tuning range from 6 GHz to 9.4 GHz and a noise figure of 8.8-10.4 dB depending on center frequency. Gain and Q-value are tunable in a wide range. Simulated IIP-3 and 1-dB compression point is -26 dBm and -34 dBm respectively, simulated at the center frequency 8.5 GHz and with 15 dB gain. Measurements on the fabricated device shows a center frequency tuning range from 6.6 GHz to 10 GHz, i.e. slightly higher center frequencies were measured than the simulated.

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