A wideband current-commutating passive mixer for multi-standard receivers in a 0.18 μm CMOS

Bao, Kuan; Fan, X.; Li, Wei; Wang, Zhigong

doi:10.1088/1674-4926/34/1/015003

Cited by 7 publications

(2 citation statements)

References 21 publications

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“…Ideally, distinct radio front ends can be used for different standards and applications. However, this is not possible due to frequency sensitivity [ 4 , 5 ]. Hence, RF-front-ends are compatible with distinct standards operating at specific frequencies.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a Reconfigurable Gilbert Mixer for Software-Defined Radios

Mehta

Donelli

2021

Sensors

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A reconfigurable gm-boosted, image-rejected downconversion mixer is presented in this paper using the SiGe 8 HP technology. The proposed mixer operates within 0.9–13.5 GHz that is suitable for software-defined radio applications. The conversion mixer comprises of resistive biased radio frequency (RF) section, double balanced Gilbert cell mixer core sections divided as per I and Q stages for image-rejection purpose, inductively peaked gm-boosting section and tunable filter section, respectively. In comparison to previous works in the scientific literature, the design shows enhanced conversion gain (CG), noise figure (NF), and image-rejection ratio (IRR). For the entire band of operation, the mixer attains a good return loss |S11| of <−10 dB. Additionally, the design accomplishes an excellent CG of 22 dB, NF of 2.5 dB, and an image-rejection ratio of 30.2 dB at maximum frequency. Finally, a third-order intercept point (IP3) of −3.28 dBm and 1 dB compression point (CP1) of −13 dBm, respectively, shows moderate linearity performance.

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Section: Introductionmentioning

confidence: 99%

Design and Analysis of a Reconfigurable Gilbert Mixer for Software-Defined Radios

Mehta

Donelli

2021

Sensors

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“…The emerging various wireless communication systems promote the necessity to design a transceiver that is compatible with multiple standards. Different kinds of receivers are proposed for applications like mobile communication standards, GPS, WLAN, and so on [1] . One of key challenges in bringing out a multimode multi-standard front-end lies in fulfilling the high level of integration and flexibility for reconfiguration.…”

Section: Introductionmentioning

confidence: 99%

Design of a Reconfigurable Mixer for Multi-Mode Multi-Standard Receivers

Gu¹,

Fan²,

Bao³

et al. 2014

AMM

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This paper reports a reconfigurable wideband passive mixer for direct conversion multimode multi-standard receivers. Different from the traditional current-commutating passive mixers, transconductor stage of this design is variable. And the TIA stage is a second-order low-pass transimpedance amplifiers based on Tow-Thomas biquad topology, working as a current mode filter. The mixer is controlled by a 4-bit control word to realize the flexible gain and variable intermediate frequency bandwidth. Other characteristics such as power consumption, NF, and linearity is also reconfigurable according to different communication standard. Circuit is implementing in 0.18μm CMOS technology. Post-simulation results show that, with the radio frequency ranges from 700 MHz to 2.6 GHz, it provides four voltage conversion gains (10/16/22/28dB) and three-3 dB intermediate frequency bandwidth (5/7.5/10MHz). Under the maximum gain, the double sideband NF of the mixer is 8.4 dB. And under the minimum gain, IIP3 is 13 dBm. The chip occupies an area of 0.248 mm2 and drains a current of 8.5mA from a 1.8 V supply when the mixer has highest gain.

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Recent advancement in the design of mixers for software‐defined radios

Mehta

Donelli

2021

Int J RF Mic Comp-Aid Eng

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The implementation of software-defined radio necessitates a versatile radio frequency (RF) front-end that can support multiple standards in different frequency bands. This article presents the state-of-the-art multiband and wideband mixers in the context of different receiver architectures suitable for softwaredefined radio (SDR). Wideband and multiband mixer designs reported in the literature are categorized on the basis of their circuit architecture. This study tabulates the results of mixer designs with an emphasis on noise figure (NF), conversion gain (CG), linearity, and image rejection ratio. The best parameters reported in the comparison are 68-84 dB of CG, 3.2 dB of NF, 2.5 mW of power consumption, 12.5 dBm of third-order input intercept point, and 0.015 mm 2 of area at different frequencies. The study also discusses the design challenges and techniques to overcome those issues. The article concludes with the summary and prospective developments for SDR architectures.

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A wideband current-commutating passive mixer for multi-standard receivers in a 0.18 μm CMOS

Cited by 7 publications

References 21 publications

Design and Analysis of a Reconfigurable Gilbert Mixer for Software-Defined Radios

Design and Analysis of a Reconfigurable Gilbert Mixer for Software-Defined Radios

Design of a Reconfigurable Mixer for Multi-Mode Multi-Standard Receivers

Recent advancement in the design of mixers for software‐defined radios

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