A 9–31-GHz Subharmonic Passive Mixer in 90-nm CMOS Technology

Bao, Mingquan; Jacobsson, H.; Aspemyr, Lars; Carchon, G.; Sun, Xiao Wei

doi:10.1109/jssc.2006.881551

Cited by 57 publications

(21 citation statements)

References 16 publications

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“…Equations (10)- (12) are plotted in Fig. 6 (top) as functions of for , and compared to numerical spectreRF simulations.…”

Section: A Phase-noise Analysis In the Regionmentioning

confidence: 99%

“…The phase-noise expressions (11) and (12), stated in Section IV-A, will be derived here. We first have to identify the noise injected by each transistor into the tank.…”

Section: Appendixmentioning

confidence: 99%

“…On the contrary, at RF frequency, no clear advantage in VCO performances derives from half-frequency operation, making subharmonic receivers of minor interest. There are mainly two techniques of subharmonic down-conversion, which are: 1) exploiting the nonlinear behavior of active devices to produce higher harmonics of the LO waveform [11], [12] and 2) multiplying the received signal with a number of uniformly spaced LO phases [13]- [15]. While the former determines a penalty in conversion gain and noise, the latter displays performances comparable to conventional Gilbert cells at the expense of a more complex LO generation circuit.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and Design of a Double-Quadrature CMOS VCO for Subharmonic Mixing at $Ka$-Band

Mazzanti

Sacchi

Andreani

et al. 2008

IEEE Trans. Microwave Theory Techn.

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Abstract-In this paper, we analyze the potentials of a four-phase 14-GHz CMOS voltage-controlled oscillator, tailored to a subharmonic receiver, for signal processing at -band. When mild phase accuracies between in-phase and quadrature down-converted signals are required, the four-phase oscillator displays roughly the same phase noise figure-of-merit as quadrature oscillator counterparts. However, the operation at half-frequency leads to an improved performance due to a higher quality factor of the tuning varactors, and because the local oscillator circuitry and signal path run at different frequencies, relaxing coupling issues. A detailed time-variant analysis of phase noise in multiphase oscillators is introduced and validated by both simulations and experiments.Prototypes realized in a 65-nm technology occupy an active area of 0.5 mm 2 and show the following performances: a 26% frequency tuning range (from 12.2 to 15.9 GHz), maximum phase error from 4 of 2 , and a phase noise of 110 dBc/Hz at 1 MHz from 14 GHz, while consuming 18 mA from 0.8-V supply.

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“…Equations (10)- (12) are plotted in Fig. 6 (top) as functions of for , and compared to numerical spectreRF simulations.…”

Section: A Phase-noise Analysis In the Regionmentioning

confidence: 99%

“…The phase-noise expressions (11) and (12), stated in Section IV-A, will be derived here. We first have to identify the noise injected by each transistor into the tank.…”

Section: Appendixmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis and Design of a Double-Quadrature CMOS VCO for Subharmonic Mixing at $Ka$-Band

Mazzanti

Sacchi

Andreani

et al. 2008

IEEE Trans. Microwave Theory Techn.

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“…CMOS has the advantage of low integration cost and high integration. Numerous SHM monolithic microwave integrated circuits (MMICs) have been demonstrated in CMOS process [3,4] (e.g., a 10-40 GHz broadband CMOS SHM using two-stage Wilkinson power combiner with a broadband feature) [3]. However, the LO-to-RF isolation is limited by a two-stage power combiner.…”

Section: Introductionmentioning

confidence: 99%

“…However, the LO-to-RF isolation is limited by a two-stage power combiner. Results from the subharmonicpumped resistive mixer have demonstrated broadband operational performance and compact chip size [4]. Minimum LO-to-RF and 2LO-to-RF isolation is 17 and 27 dB, respectively.…”

Section: Introductionmentioning

confidence: 99%

V-Band High Isolation Subharmonic Monolithic Mixer With Hairpin Diplexer

et al. 2010

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Abstract-A 54-66 GHz sub-harmonic monolithic passive mixer using the standard 0.15 µm pHEMT process is demonstrated. The proposed mixer is composed of a hairpin diplexer, an open stub, and a low-pass filter. The mixer also utilizes a pair of anti-parallel diodes to achieve a subharmonic mixing mechanism. The hairpin diplexer formed with two parallel-coupled line band-pass filters is used to improve the isolation between the radio frequency (RF) and local oscillation (LO) ports. The low-pass filter supports an intermediate frequency (IF) ranging from dc to 1 GHz. This proposed configuration leads to a die size of less than 1.5 mm 2 . With a conversion loss of 15.2-18.3 dB, the 2LO-to-RF isolation is found to be better than 27.5 dB. A high LO-to-RF isolation of 23.5-45 dB over 54-66 GHz RF bandwidth, as well as 1 dB compression power of 8 dBm, can be achieved.

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A double‐balanced subharmonic passive mixer with an integrated quadrature local oscillator in 0.18 μm CMOS

Huang

Chen

2012

Micro & Optical Tech Letters

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This letter presents a double‐balanced subharmonic passive mixer designed in a 0.18 μm CMOS technology.The biasing condition of the passive mixer is analyzed to optimize its conversion loss and local oscillator (LO) to RF/IF leakage performances. The four phases required for the mixer were generated using an on‐chip LO and a divide‐by‐two circuit. The mixer converts an RF signal ranging from 3.5 to 6.7 GHz to an IF signal using an LO of 2.5 GHz with a voltage conversion loss of 7.2 ± 1.5 dB. The measured 1 × LO and 2 × LO leakages to the RF/IF port are −25/−60 dBm and −35/−65 dBm, respectively. The measured input third‐order intercept point (IIP3) of the mixer is −2 dBm. The circuit operates from a 1.8 V supply and consumes 45 mW of power. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2617–2619, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27156

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A 9–31-GHz Subharmonic Passive Mixer in 90-nm CMOS Technology

Cited by 57 publications

References 16 publications

Analysis and Design of a Double-Quadrature CMOS VCO for Subharmonic Mixing at $Ka$-Band

Analysis and Design of a Double-Quadrature CMOS VCO for Subharmonic Mixing at $Ka$-Band

V-Band High Isolation Subharmonic Monolithic Mixer With Hairpin Diplexer

A double‐balanced subharmonic passive mixer with an integrated quadrature local oscillator in 0.18 μm CMOS

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