1.8 dB NF 3.6 mW CMOS active balun low noise amplifier for GPS

Ji, Yin; Wang, C.; Liu, J.; Liao, Huailin

doi:10.1049/el.2010.3091

Cited by 15 publications

(12 citation statements)

References 5 publications

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“…978-1-4799-4242-8/14/$31.00 c 2014 IEEE The LNA in Figure 1(b) employes inductive source degeneration for input impedance matching in combination with a CS-CG balun stage [2]. This topology provides noise matching and impedance matching simultaneously and gives the best noise performance with the disadvantage of large area due to inductors L s , L g and a lack of tuneability.…”

Section: Analysis Of Different Balun Lna Topologiesmentioning

confidence: 99%

CMOS noise canceling balun LNA with tunable bandpass from 4.6 GHz to 5.8 GHz

Sturm

Popuri

Xiang

2014

2014 21st IEEE International Conference on Electronics, Circuits and Systems (ICECS)

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A compact resistive-feedback low-noise amplifier (LNA) with single-ended input and differential output for multistandard wireless receivers up to 6 GHz is presented. To relax external RF filters and LNA linearity requirements, an on-chip LC bandpass load is included with a continuously tunable center frequency from 4.6 GHz to 5.8 GHz. The LNA is implemented in 65 nm CMOS technology and achieves a measured gain up to 30 dB and an IIP3 linearity between -6.5 dbm and -10.3 dBm. Due to noise cancelation techniques the noise figure (NF) reaches a low value of 1.6 dB in the band of interest. The power consumption is below 16 mW at 1.2 V single supply. The active chip area is 154 µm * 197 µm. Therefore the proposed LNA structure is a costeffective alternative to source-degeneration based narrowband LNA's with comparable performance. Since wide-band input impedance matching is employed, the LNA can be used in reconfigurable multi-standard wireless applications.

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Section: Analysis Of Different Balun Lna Topologiesmentioning

confidence: 99%

CMOS noise canceling balun LNA with tunable bandpass from 4.6 GHz to 5.8 GHz

Sturm

Popuri

Xiang

2014

2014 21st IEEE International Conference on Electronics, Circuits and Systems (ICECS)

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“…A viable solution may be active balun based on a parallel configuration of CG and CS stages explored in low noise amplifiers. It can simultaneously provide wideband input matching and relatively low noise figure [74] [75]. It is desirable to have a low input reflection coefficient so the input power will not be reflected.…”

Section: Active Balun Topologiesmentioning

confidence: 99%

An inductorless 3–5 GHz band-pass filter with tunable center frequency in 90 nm CMOS

Sudalaiyandi

Hjortland

et al. 2013

2013 IEEE International Symposium on Circuits and Systems (ISCAS2013)

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Ultra-wideband (UWB) has emerged as a very promising technology for short-range communication systems. The ultrashort duration of UWB waveforms gives rise to the potential ability to provide high-precision ranging and localization. Accurate distance measurements between sensor nodes used for localization in wireless sensor networks (WSNs) are very attractive for advanced wireless health-care applications. Over the years, several localization methods like received signal strength intensity (RSSI), angle of arrival (AoA) and time based approaches such as time-of-arrival (ToA) and time-difference-of-arrival (TDoA) exist for distance measurement between sensor nodes. The dominant RSSI is simply estimating the node distance by measuring the strength of the received signal. However, precision is too low with this method. ToA ranging approach is simple but require synchronization to give good precision. Clock synchronization between the transceivers is limiting the accuracy of the ToA estimation and hence increases the design challenges of the UWB ranging system. To our best knowledge no high-precision localization solution suitable for in-body tracking is reported. Impulse radio ultra-wideband (IR-UWB) has been an interesting area of research for lowpower short-range applications. Several studies indicate time-of-flight (ToF) measurements combined with the good temporal resolution of IR-UWB can give good precision. Typical distances between sensor nodes are in the order of ten meters that requires distance measurement is approximately one centimeter. Since radio waves propagate with approximately the speed of light, the time differences of less than 30 ps are required. With traditional clock driven circuit solutions, we need a clock rate of more than 30 GHz, which is not easy in standard technology. Using the new circuit solutions that are still in digital value but continuous in time (Continuous-Time Binary Value-CTBV), it is possible to find effective solutions for precise distance measurement in combination with communication, all are integrated on a single chip. The main goal of this thesis is to develop an IR-UWB receiver front-end covering the frequency band of 3-5 GHz for the CTBV ranging system. The front-end consists of an antenna, a low noise amplifier, a band-pass filter, a downconversion quadrature mixer, a low-pass filter, a differential-to-single-ended converter and a continuous-time quantizer. These building blocks are assembled with other circuit elements of a functional impulse-based radio chip that is demonstrated at short distances. To reduce complexity and to minimize the power consumption, the proposed IR-UWB receiver front-end has been implemented as an energy threshold detector. The quantizer with tunable threshold acts as a single-bit ADC is implemented as a demodulation function. By avoiding using external components as well as high frequency sampling clock, the IR-UWB receiver front-end consumes less power and fully integrated is possible. The proposed IR-UWB receiver front-end is suitable for...

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“…Among the various topologies of active baluns [12][13][14], the commonly used topology is the differential amplifier topology. As shown in Figure 1(a), a conventional differential amplifier can be used as an active balun.…”

Section: Active Balunmentioning

confidence: 99%

“…In hybrid circuits passive baluns are commonly used [8][9][10][11], while in RFIC and MMIC designs both active baluns and passive baluns are widely implemented. For ICs work below 4 GHz, since the passive baluns are too bulky to realize on chip, usually active baluns are implemented [12][13][14]. For ICs work above 4 GHz, compared with active baluns [15,16], passive baluns are more intensively studied, such as lumped-element baluns [17], transformer baluns [18][19][20] and Marchand-type baluns [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Design and Integration of Compact K-Band Baluns Using Impedance Tuning Approach

Zhang¹,

Subramanian²

2012

PIER C

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Abstract-Compact K-Band CMOS baluns are designed, fabricated and characterized in a 130 nm CMOS technology. These baluns include a tunable active balun, a L-C lumped element balun, and two asymmetric planar transformer baluns. The detailed design processes are presented, including the topology selection, the transistor, inductor and transformer sizing, and the layout considerations. These topologies are compared in various aspects such as insertion loss, phase and amplitude imbalance, bandwidth, chip area, power consumption, and the difficulty to design and integration. An impedance tuning approach is implemented to chose the proper balun topology and to simply the balun integration. The baluns are on-wafer characterized and the measurement results compare the state-of-the-art realizations.

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1.8 dB NF 3.6 mW CMOS active balun low noise amplifier for GPS

Cited by 15 publications

References 5 publications

CMOS noise canceling balun LNA with tunable bandpass from 4.6 GHz to 5.8 GHz

CMOS noise canceling balun LNA with tunable bandpass from 4.6 GHz to 5.8 GHz

An inductorless 3–5 GHz band-pass filter with tunable center frequency in 90 nm CMOS

Design and Integration of Compact K-Band Baluns Using Impedance Tuning Approach

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1.8 dB NF 3.6 mW CMOS active balun low noise amplifier for GPS

Cited by 15 publications

References 5 publications

CMOS noise canceling balun LNA with tunable bandpass from 4.6 GHz to 5.8 GHz

CMOS noise canceling balun LNA with tunable bandpass from 4.6 GHz to 5.8 GHz

An inductorless 3&#x2013;5 GHz band-pass filter with tunable center frequency in 90 nm CMOS

Design and Integration of Compact K-Band Baluns Using Impedance Tuning Approach

Contact Info

Product

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An inductorless 3–5 GHz band-pass filter with tunable center frequency in 90 nm CMOS