2.4 GHz 0.18&amp;#x00B5;m CMOS passive mixer with integrated baluns

Song, Chaosheng; Lo, Ivy; Borić–Lubecke, Olga

doi:10.1109/mwsym.2009.5165720

Cited by 7 publications

(6 citation statements)

References 6 publications

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“…This mixer has been introduced with integrated baluns in Refs. and . In , the least conversion loss has been obtained equal to 10.1 dB.…”

Section: Introductionmentioning

confidence: 84%

“…Given the redesign of values to the previous papers , the obtained values of conversion loss indicate the reduction of 1 dB or 10%. In the next phase of the study, it has been attempted to bias the gates of the mixer core which has been done for the first time, in this study.…”

Section: Mixer Designmentioning

confidence: 99%

“…Due to having benefits of low flicker noise and lack of using power due to operation without DC bias current, resistive ring mixers are suitable for use in this system .…”

Section: Introductionmentioning

confidence: 99%

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Biased gates CMOS resistive ring mixer

Amiri

Tabatabaei

2014

Micro & Optical Tech Letters

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A biased gates passive resistive ring mixer with integrated baluns in 0.18-lm CMOS Taiwan Semiconductor Manufacture Company (TSMC) process is reported. The mixer shows 10% improvement compared with the mixer without biased gates. This is the first circuit report of biased gates resistive ring mixer with integrated baluns. The circuit has been designed and optimized for 2.4 GHz RF frequency and for applying in the contactless heart rate extraction system using microwave Doppler radar. The circuit has the conversion loss of 8.36 dB for 2.4 GHz frequency and indicates 17% improvement compared to the similar types without gate biasing have been reported so far.

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“…This mixer has been introduced with integrated baluns in Refs. and . In , the least conversion loss has been obtained equal to 10.1 dB.…”

Section: Introductionmentioning

confidence: 84%

Section: Mixer Designmentioning

confidence: 99%

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Biased gates CMOS resistive ring mixer

Amiri

Tabatabaei

2014

Micro & Optical Tech Letters

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“…The simulated results of the miniaturized differentially fed coupler from Figure 1a, using AWR Microwave Office software, are presented in Figure 2, and show the responses very close to the ideal branch-line directional coupler. In order to allow for measurements of the designed directional coupler, an LC-type balun network, shown schematically in Figure 1b, has also been considered [15]. The balun is not intended for use in future applications of the directional coupler, but it is required to evaluate the coupler with single ended wafer probes.…”

Section: Design Of a Miniaturized Differentially Fed Branch-line Dirementioning

confidence: 99%

Monolithic Miniaturized Differentially-Fed Branch-Line Directional Coupler in GaAs Monolithic Technology

Gruszczyński

Smolarz

et al. 2020

Electronics

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In this paper, a design of a miniaturized branch-line directional coupler is presented. The coupler is designed with balanced coupled-line sections, which are electrically shortened by the application of lumped capacitors. To measure the parameters of the coupler, appropriate baluns have been designed. The coupler has been designed in a GaAs PH25 UMS (united monolithic semiconductor) technology with the center frequency of 24 GHz. The measured power split equals 3 dB with the transmission/coupling imbalance not exceeding 0.6 dB. The measured return losses equal 17 dB at the center frequency, whereas the isolation reaches 17 dB. The fabricated coupler‘s size equals 630 um × 487 um, which is 0.19 of the full size of the directional coupler in the chosen technology (1191 um × 1170 um).

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“…In Ref. 12, the first fully integrated resistive mixer that uses baluns both for single‐ended to differential conversion and impedance matching was reported. With the RF and LO baluns integrated on chip, this passive mixer exhibits low conversion loss (CL), excellent linearity, as well as good RF and IF impedance matching, without any matching circuits.…”

Section: Introductionmentioning

confidence: 99%

0.18‐μm CMOS wideband passive mixer

Song

Borić–Lubecke

2012

Micro & Optical Tech Letters

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A 0.18‐μm CMOS wideband passive mixer fully integrated with baluns in IBM7HP process is reported. The mixer exhibits wideband operation, despite the intrinsic narrow‐band magnitude balance of passive baluns. Very low DC offset, of less than 3 mV, is achieved without any DC cancellation circuits, due to high LO–RF isolation. At the RF frequency of 2.4 GHz, the combined IF differential outputs provide conversion loss (CL) of 7.5 dB, input 1 dB compression point (IP1dB) of 6.2 dBm, and input third‐order intercept point (IIP3) of 15.5 dBm. This mixer exhibits broad‐band RF impedance matching with reflection coefficient magnitude better than −9.6 dB through the RF frequency range from 1 to 12 GHz. The CL of 10.1–12.9 dB, IP1dB of 8.6–14.4 dBm, and IIP3 of 16–22.2 dBm are achieved at this frequency range for broad‐band applications. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:23–27, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27226

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2.4 GHz 0.18µm CMOS passive mixer with integrated baluns

Cited by 7 publications

References 6 publications

Biased gates CMOS resistive ring mixer

Biased gates CMOS resistive ring mixer

Monolithic Miniaturized Differentially-Fed Branch-Line Directional Coupler in GaAs Monolithic Technology

0.18‐μm CMOS wideband passive mixer

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