A Noise Optimized Passive Mixer for Charge-Domain Sampling Applications

Park, C.; Seo, Heesong; Kim, B.

doi:10.1163/156939309789932458

Cited by 9 publications

(5 citation statements)

References 13 publications

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“…8 and 9, a very good agreement is found between the simulated results and the experimental behavior of the manufactured RSO. Phase noise is a very relevant parameter that affects the performance of microwave systems [31,32]. It has been experimentally characterized by means of a direct method.…”

Section: Resultsmentioning

confidence: 99%

Optimization of the Synchronization Bandwidth of Rationally Synchronized Oscillators Based on Bifurcation Control

Fernández¹,

Hoeye²,

Vázquez³

et al. 2011

PIER

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Abstract-In this work, a nonlinear technique for the optimization of the synchronization bandwidth of Rationally Synchronized Oscillators (RSO) is presented. The circuit is forced to operate near a Hopf bifurcation point which is created around the frequency of the input reference signal. Under this operating regime, the reference signal is strongly amplified and the synchronization bandwidth of the circuit is considerably improved. A 5-3 GHz rationally synchronized oscillator has been optimized using the proposed method. The manufactured RSO provides a 5 MHz synchronization bandwidth with a reference signal power of −22 dBm, in good agreement with simulation results.

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Section: Resultsmentioning

confidence: 99%

Optimization of the Synchronization Bandwidth of Rationally Synchronized Oscillators Based on Bifurcation Control

Fernández¹,

Hoeye²,

Vázquez³

et al. 2011

PIER

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“…The resultant signal level is well above the thermal noise level of the following blocks. The composed and amplified signal is mixed with a square-wave signal with frequency f m in a precision passive mixer [ 24 , 25 ]. The amplitude of the corresponding spectral component is proportional to the excitation signal amplitude (assumed to be constant during the measurements) and corresponding capacitance difference of the sensor, which is caused by the adsorbed target molecules onto the modified capacitor.…”

Section: Capacitive Sensing With Electronic Detectionmentioning

confidence: 99%

Sensitivity Comparison of Vapor Trace Detection of Explosives Based on Chemo-Mechanical Sensing with Optical Detection and Capacitive Sensing with Electronic Detection

Strle

Štefane

Zupanič

et al. 2014

Sensors

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The article offers a comparison of the sensitivities for vapour trace detection of Trinitrotoluene (TNT) explosives of two different sensor systems: a chemo-mechanical sensor based on chemically modified Atomic Force Microscope (AFM) cantilevers based on Micro Electro Mechanical System (MEMS) technology with optical detection (CMO), and a miniature system based on capacitive detection of chemically functionalized planar capacitors with interdigitated electrodes with a comb-like structure with electronic detection (CE). In both cases (either CMO or CE), the sensor surfaces are chemically functionalized with a layer of APhS (trimethoxyphenylsilane) molecules, which give the strongest sensor response for TNT. The construction and calibration of a vapour generator is also presented. The measurements of the sensor response to TNT are performed under equal conditions for both systems, and the results show that CE system with ultrasensitive electronics is far superior to optical detection using MEMS. Using CMO system, we can detect 300 molecules of TNT in 10+12 molecules of N2 carrier gas, whereas the CE system can detect three molecules of TNT in 10+12 molecules of carrier N2.

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“…This kind of mixer can be working on a low supply voltage and low power dissipation, but it suffers from limited gain and relatively poor noise performance. Passive mixer has a great reduction of the flicker noise from the switching core and good linearity performance, but they have conversion loss and require a high LO drive for operation [25,26]. To generate large LO signals for passive mixer can significantly increase the power consumption of the integrated multi-standard receiver systems.…”

Section: Introductionmentioning

confidence: 99%

A Wideband Cmos Current-Mode Down-Conversion Mixer for Multi-Standard Receivers

Wan¹,

Wang²

2012

PIER

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Abstract-This paper presents a low voltage wideband downconversion mixer using current-mode approach for multi-standard receivers. The proposed mixer uses a current mirror amplifier with an embedded passive switching core to achieve mixing function, which can combine the advantages of active and passive mixers simultaneously. The mixer is implemented using a 0.18 µm CMOS technology and covers frequency band from 0.5 GHz to 4.0 GHz. A comparison with conventional CMOS down-conversion mixer shows that this currentmode mixer has advantages of large conversion gain, low noise figure and high linearity. Over the entire bandwidth, the mixer features a measured power conversion gain of 8.9 ∼ 9.6 dB, a double-sideband (DSB) noise figure of 6.9 ∼ 9.3 dB and an input third-order intercept point (IIP3) of 2.0 ∼ 5.8 dBm, while consuming 8 mA from a 1.2 V supply voltage. The mixer occupies the active area of 0.43 × 0.46 mm 2 including testing pads.

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A Noise Optimized Passive Mixer for Charge-Domain Sampling Applications

Cited by 9 publications

References 13 publications

Optimization of the Synchronization Bandwidth of Rationally Synchronized Oscillators Based on Bifurcation Control

Optimization of the Synchronization Bandwidth of Rationally Synchronized Oscillators Based on Bifurcation Control

Sensitivity Comparison of Vapor Trace Detection of Explosives Based on Chemo-Mechanical Sensing with Optical Detection and Capacitive Sensing with Electronic Detection

A Wideband Cmos Current-Mode Down-Conversion Mixer for Multi-Standard Receivers

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