An RF-LO current-bleeding doubly balanced mixer for IEEE 802.15.3a UWB MB-OFDM standard receivers

Douss, S.; Touati, Farid; Loulou, Mourad

doi:10.1016/j.aeue.2007.06.007

Cited by 13 publications

(3 citation statements)

References 10 publications

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“…Clearly, this will cause a trade-off between power and other performance parameters. One approach that designers took is using current bleeding technique [25,26] to improve noise, gain, and linearity without dramatic power increase. Using this method is typically limited to narrowband applications; and for UWB, several inductors should be used which results in dramatic area increase.…”

Section: Ultra-wideband Mixermentioning

confidence: 99%

Ultra-Wideband Imaging Systems for Breast Cancer Detection

Bidhendi

Jafari

Genov

2013

Ultra-Wideband and 60 GHz Communications for Biomedical Applications

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In this chapter we will begin with an introduction to ultra-wideband (UWB) communication systems and their application in medical imaging. The rest of the chapter will present design of UWB receiver and transmitter blocks (low-noise amplifier (LNA), Multiplier and pulse generator) that are designed, fabricated and tested by authors. The reader will have a good understanding of a UWB transceiver system design and its advantages for breast cancer detection after reading this chapter.Keywords Breast cancer detection · Breast imaging · Ultra-wideband imaging · UWB transceiver · UWB pulses · UWB transmitter · UWB receiver MotivationWorldwide breast cancer is one of the leading causes of death among women. Only in the USA, tens of thousands of deaths are reported yearly because of this type of cancer. 26 percent of all types of cancers among women are breast cancer [1]. It is now well-known that a high percentage of patients with this type of cancer can be cured if diagnosed in the early stages. There are many ongoing research projects to develop and improve imaging systems to help early detection of this type of cancer. This includes works which are concentrated on improvement of image processing or imaging system optimization using new technologies.Ultra-wideband (UWB) communications is one of the newest technologies employed in imaging systems that are utilized for human's body imaging. The motivation is mainly based on using ultra-narrow pulses in the time domain to detect and contrast between normal and malignant tissues. This has initiated many research projects based on using this technology for imaging of a particular organ of body including heart, lung, breast, and organs involved in breath and speech mechanisms [2].

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Section: Ultra-wideband Mixermentioning

confidence: 99%

Ultra-Wideband Imaging Systems for Breast Cancer Detection

Bidhendi

Jafari

Genov

2013

Ultra-Wideband and 60 GHz Communications for Biomedical Applications

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“…In the advantage of minimizing the load resistance in addressing the limitation of voltage headroom, the CG of the mixer is adversely affected. In [ 18 ], current-bleeding technique is used to mitigate the output voltage headroom problem by steering the DC current flow through the load resistance. However, this approach is not a preferred solution as the total power consumption remains the same as in conventional Gilbert cell architecture.…”

Section: Introductionmentioning

confidence: 99%

50 MHz–10 GHz Low-Power Resistive Feedback Current-Reuse Mixer with Inductive Peaking for Cognitive Radio Receiver

Vitee

Ramiah

Chong

et al. 2014

The Scientific World Journal

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A low-power wideband mixer is designed and implemented in 0.13 µm standard CMOS technology based on resistive feedback current-reuse (RFCR) configuration for the application of cognitive radio receiver. The proposed RFCR architecture incorporates an inductive peaking technique to compensate for gain roll-off at high frequency while enhancing the bandwidth. A complementary current-reuse technique is used between transconductance and IF stages to boost the conversion gain without additional power consumption by reusing the DC bias current of the LO stage. This downconversion double-balanced mixer exhibits a high and flat conversion gain (CG) of 14.9 ± 1.4 dB and a noise figure (NF) better than 12.8 dB. The maximum input 1-dB compression point (P1dB) and maximum input third-order intercept point (IIP3) are −13.6 dBm and −4.5 dBm, respectively, over the desired frequency ranging from 50 MHz to 10 GHz. The proposed circuit operates down to a supply headroom of 1 V with a low-power consumption of 3.5 mW.

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“…Clearly this will cause a trade-off between power and other performance parameters. One approach that designers took is using current bleeding technique [1,2] to improve noise, gain and linearity without dramatic power increase. Using this method is typically limited to narrowband applications; and for UWB, several inductors should be used which results in dramatic area increase.…”

mentioning

confidence: 99%

Low power highly linear inductorless UWB CMOS mixer with active wideband input balun

Deen

2013

2013 IEEE International Wireless Symposium (IWS)

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A low-power, highly linear CMOS doublebalanced mixer for UWB applications is presented. The mixer is designed based on well-known folded architecture and also benefits from DC isolation of RF (Radio Frequency) and LO (Local Oscillator) stages. Stacked NMOS-PMOS g m -boosting topology is used in the design of RF stage. To achieve very low power consumption, this stage is biased in sub-threshold region. Also an ultra-wideband active balun is designed and fabricated to generate differential inputs. The balun is separately characterized and its performance is reported both separately and together with the mixer. The design is implemented using 130 nm CMOS process and is operational from 3.1 to 10.6 GHz. The measured maximum conversion gain shows high value of 14.9 dB for the mixer core. Also, the measured double sideband noise figure has a minimum value of 7.8 dB for the mixer core and 12.9 dB when balun is added. Input (RF and LO) port matching is achieved with reflection of more than 10 dB for the entire band. Furthermore, port-toport isolation is measured that shows excellent isolation between ports. Measured IIP3 as a good indication of linearity performance is also reported and shows excellent linearity that is a result of techniques used in the design. Finally the mixer core area is measured to be 0.056 mm 2 with power dissipation of 623 µW from a 1.2 V supply.Index Terms-ultra-wideband (UWB), CMOS, Mixer, highly linear, low power, subthreshold, inductorless.

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An RF-LO current-bleeding doubly balanced mixer for IEEE 802.15.3a UWB MB-OFDM standard receivers

Cited by 13 publications

References 10 publications

Ultra-Wideband Imaging Systems for Breast Cancer Detection

Ultra-Wideband Imaging Systems for Breast Cancer Detection

50 MHz–10 GHz Low-Power Resistive Feedback Current-Reuse Mixer with Inductive Peaking for Cognitive Radio Receiver

Low power highly linear inductorless UWB CMOS mixer with active wideband input balun

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