Low-power widely tunable Gm-C filter with an adaptive DC-blocking, triode-biased MOSFET transconductor

Hori, Shingo; Maeda, Tadashi; Matsuno, N.; Hida, H.

doi:10.1109/esscir.2004.1356627

Cited by 44 publications

(19 citation statements)

References 5 publications

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“…This large dynamic range requirement of ADC can be mitigated by a variable bandwidth base-band filter, which is usually designed as a Gm-C filter [5].…”

Section: Multi-standard Receiver Architecturementioning

confidence: 99%

Design of reconfigurable RF front-end for multi-standard receiver using switchable passive networks

Kim¹,

Jang²,

Yoo³

2006

Analog Integr Circ Sig Process

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For successful implementation of a multistandard receiver, a reconfigurable receiver architecture and a reconfigurable component design technique are essential. In this paper, an adaptable receiver architecture and a reconfigurable RF design technique using a switchable passive network are proposed. To verify the proposed design technique, the reconfigurable mixer and QVCO are designed using a flexible matching network and flexible LC tank, respectively. The measurement results of each component well prove the usefulness of the switchable passive network.

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“…This large dynamic range requirement of ADC can be mitigated by a variable bandwidth base-band filter, which is usually designed as a Gm-C filter [5].…”

Section: Multi-standard Receiver Architecturementioning

confidence: 99%

Design of reconfigurable RF front-end for multi-standard receiver using switchable passive networks

Kim¹,

Jang²,

Yoo³

2006

Analog Integr Circ Sig Process

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show abstract

“…These trade-offs can be improved by more complex schemes, for example, by including an active, non-linear source degeneration impedance in addition to the linear source resistance, or using switched arrays of linear source degeneration resistors to tune transconductance [4,16,22,27,28,30]. • Triode region operation-A MOSFET operated in the triode region (i.e., with V ds < V gs −V th ) has a nearly linear relationship between I d and V gs , and transconductance proportional to V ds , providing a method for transconductance tuning [5,6,23]. The maximum limit on transconductance tuning range is limited by the highest value of V ds under which triode region operation is maintained, while a lower limit is set by the minimum value of V ds which can be accurately maintained in the presence of DC offsets in the circuit.…”

Section: Gm-c Filtersmentioning

confidence: 99%

Multistandard Analogue Baseband Filters for Software-Defined and Cognitive Radio Receivers

Sun

Moritz

Zhu

2011

Circuits Syst Signal Process

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Analogue baseband filters are an important circuit for channel select and anti-aliasing in wireless and mobile communication systems. For software and cognitive radio, they must be widely tunable and reconfigurable to accommodate existing, emerging, and future wireless and mobile standards. In this paper, design considerations of tunable and programmable filters for highly integrated multistandard receivers are presented. General background of multistandard integrated receivers and design challenges of analogue baseband filters are given. Circuit techniques for baseband filter design including the widely used active-RC and Gm-C circuits are described. Filter structures and design methods for high-order baseband filters are reviewed. On-chip tuning issues and methods are discussed. Results and performances of some published design examples are summarized. Future directions are also pointed out.

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“…In recent years, numerous linearization techniques have been designed and reported [2][3][4]. The passive resistor, which is often implemented by the poly-silicon in the CMOS process, would be used in the high linearity transconductor circuit.…”

Section: Introductionmentioning

confidence: 99%

Linear low voltage nano-scale CMOS transconductor

Hung

2010

Analog Integr Circ Sig Process

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This paper presents a high linearity MOSFETonly transconductor based on differential structures. While a precise BSIM4 transistor model is introduced through analysis, the linearity can be improved by mobility compensation techniques as the device size is scaled down in the nano-scale CMOS technology. When the compensation utilizes transistors in subthreshold region, rather than the transistors in saturation region, the value of transconductance can be maintained. The circuit is fabricated in TSMC 0.18-lm CMOS process. The measurement results show 18 dB improvement of the proposed version, and 65 dB HD3 can be achieved for a 2.1 MHz 700 mV pp differential input. The static power consumption under 1-V power supply voltage is 183 lW. Measurement results demonstrate the agreement with theoretical analyses.

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Low-power widely tunable Gm-C filter with an adaptive DC-blocking, triode-biased MOSFET transconductor

Cited by 44 publications

References 5 publications

Design of reconfigurable RF front-end for multi-standard receiver using switchable passive networks

Design of reconfigurable RF front-end for multi-standard receiver using switchable passive networks

Multistandard Analogue Baseband Filters for Software-Defined and Cognitive Radio Receivers

Linear low voltage nano-scale CMOS transconductor

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