Comparison of an inductorless low-IF and zero-IF receiver for Bluetooth

Durdodt, C.; Hanke, A.; Heinen, Stefan; Langmann, U.

doi:10.1109/mwscas.2002.1187283

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…3) More strict requirements are mainly made to filters of voice communication systems such as cell phones instead of data communication systems like as Bluetooth and/or WLAN. 4) Methods of the filter implementation are cascaded design based of current buffers [8], cascaded design based on voltage buffers [7], [10], transconductance based realization of ladder high-order structure (Gm-C filter) [11], [13], and SC-filter design [4].…”

Section: Receiver Architecture and Low-pass Filter Specificationsmentioning

confidence: 99%

Channel filters for microelectronic receivers of wireless systems

Коротков

Morozov

Tutyshkin

et al. 2005

2005 IEEE 7th CAS Symposium on Emerging Technologies: Circuits and Systems for 4G Mobile Wireless Communications

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A short overview of receiver architectures and low-pass filter specifications for wireless systems is reported. Two design procedures of lowpass filters for communication system are discussed. A CMOS transconductance-capacitor (G m -C) filter with enhanced linearity is presented as the first one. The proposed design is based on a transconductance amplifier with enhanced linearity. For the elimination of the amplifier harmonic level the compensation principle is used. The device was realized as a balanced fifth-order 1MHz low-pass Bessel filter in 0.35µm CMOS process. The filter operates with a low supply voltage of +2.5 Volt. Its power consumption is 8.25 mW, the input referred RMS noise is 120 µV (0.01 ÷ 2 MHz), and HD3 (1V P-to-P @ 1MHz) is -54 dB. Alternatively a new approach to the design of high-frequency filters with low power consumption is presented. The idea is to use current mode and voltage mode active elements with enhanced frequency range. These elements are second generation current conveyors and voltage buffers, those are used to implement integrators. The filter is realized as a switched-capacitor circuit based on an integrator chain with multi feedback loops. As an example a CMOS switched-capacitor filter with 1MHz cut-off frequency is presented. The device was realized as an unbalanced fifth-order low-pass Chebyshev filter in 0.35µm CMOS process. The filter operates with supply voltage varying from +2.5V to +3V. Depending on the supply voltage its power consumption is from 3 mW to 10 mW, the input referred RMS noise is 1.9 mV (0.02 ÷ 2 MHz@+3V), and HD3 (2V P-to-P @ 900kHz @ +3V) is -54 dB.Index Terms -High-frequency microelectronic filter, cell phones, Bluetooth, WLAN, DECT, low power consumption, G m -C filter, transconductance amplifier, second generation current conveyor, switched-capacitor filter, dummy switch, voltage buffer.

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Section: Receiver Architecture and Low-pass Filter Specificationsmentioning

confidence: 99%

Channel filters for microelectronic receivers of wireless systems

Коротков

Morozov

Tutyshkin

et al. 2005

2005 IEEE 7th CAS Symposium on Emerging Technologies: Circuits and Systems for 4G Mobile Wireless Communications

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“…Some o f the main uses of inductors are in LC tank circuits. There have been many papers published on designing active-inductors which work relatively better at frequencies up to 10 GHz [15][16][17][18][19][20][21]. However, even these active inductors break down at frequencies higher than 10 GHz because of the parasitic capacitances intrinsic to active devices like MOSFETs and BJTs [8].…”

Section: Identifying the Problemmentioning

confidence: 99%

6 GHz inductor-less tuned low noise amplifier incorporating an artificial tank circuit

Ahmed¹

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5.9 GHZ Inductor-Less Low Noise Amplifier

Ahmed

Wight

2006

2006 Canadian Conference on Electrical and Computer Engineering

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Comparison of an inductorless low-IF and zero-IF receiver for Bluetooth

Cited by 4 publications

References 13 publications

Channel filters for microelectronic receivers of wireless systems

Channel filters for microelectronic receivers of wireless systems

6 GHz inductor-less tuned low noise amplifier incorporating an artificial tank circuit

5.9 GHZ Inductor-Less Low Noise Amplifier

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