9.1 A 13mm&lt;sup&gt;2&lt;/sup&gt; 40nm multiband GSM/EDGE/HSPA&amp;#x002B;/TDSCDMA/LTE transceiver

Georgantas, T.; Vavelidis, K.; Haralabidis, N.; Bouras, S.; Vassiliou, I.; Kapnistis, C.; Kokolakis, Y.; Peyravi, Hamed; Theodoratos, G.; Vryssas, K.; Kanakaris, Nikos; Kokozidis, C.; Kavadias, S.; Plevridis, S.; Mudge, P.; Elgorriaga, Igor; Kyranas, Aris; Liolis, Spyridon; Kytonaki, Eleni; Konstantopoulos, Giorgos; Robogiannakis, Pavlos; Tsilipanos, Kosmas; Margaras, M.; Betzios, Panagiotis; Magoon, R.; Bouras, Nias; Rofougaran, M.; Rofougaran, R.

doi:10.1109/isscc.2015.7062975

Cited by 10 publications

(5 citation statements)

References 5 publications

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“…Based on a recent example in [19], even an EVM of 0.5% would be possible for a BS TX. Correspondingly, somewhat lower EVM of ~1% has been reported for an IC targeted for mobile applications [20]. These numbers represent measured combination of all nonidealities coming from IC so- lution, and are typically dominated by phase noise of the local oscillator and I/Q imbalance (caused by internal amplitude and phase errors) even if calibrated.…”

Section: A Tx Snr Modelmentioning

confidence: 96%

Analyzing 5G RF System Performance and Relation to Link Budget for Directive MIMO

Tuovinen

Tervo

Pärssinen

2017

IEEE Trans. Antennas Propagat.

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Abstract-Wideband fifth generation (5G) systems utilizing high carrier frequency and multiple-input multiple-output (MIMO) raise major challenges for the system design. Wave propagation and practical hardware tradeoffs at higher frequency ranges provide new boundary conditions for the implementation. This paper addresses system performance boundaries and the analysis method towards multibeam communications at mmW. We combine analysis from antennas and propagation to the RF transceiver specifications and beamforming requirements. Realistic propagation model and antenna implementation is used to generate beam-specific path gains and provide a wide variety of user scenarios. Using this approach, system level interdependencies and RF performance boundaries can be verified with different antenna configurations in various propagation environments. As an example, we present MIMO link budget analysis targeting 10 Gbits/s for multiple devices in the office scenario at 27 GHz.

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Section: A Tx Snr Modelmentioning

confidence: 96%

Analyzing 5G RF System Performance and Relation to Link Budget for Directive MIMO

Tuovinen

Tervo

Pärssinen

2017

IEEE Trans. Antennas Propagat.

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“…In this work, an active mixer is used rather the counterpart passive mixer, by the virtue of high conversion gain and large port isolation, and the proposed mixer is shown in Fig. 14 [2], [26], [27]. The mixer is driven by a quadrature 50% duty-cycle clock, which is generated from the LO generation block.…”

Section: A Lpf and Mixermentioning

confidence: 99%

Reconfigurable 2.4-/5-GHz Dual-Band Transmitter Front-End Supporting 1024-QAM for WLAN 802.11ax Application in 40-nm CMOS

Liu

Qian

Boon

et al. 2020

IEEE Trans. Microwave Theory Techn.

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This article presents a new design methodology of a reconfigurable dual-band output matching network with high efficiency. The implemented output matching network achieves a passive efficiency of 71.6% and 75% at 2.4 and 5.5 GHz, respectively. Based on the proposed output matching network, a transmitter and a standalone power amplifier (PA) supporting 2.4-/5-GHz dual-band operation for the emerging wireless local area network (WLAN) 802.11ax application are designed and fabricated in 40-nm CMOS technology. In 2.4-and 5-GHz WLAN bands, the PA achieves a P sat of 23 and 21.9-22.4 dBm with power-added efficiency (PAE) of 27% and 24.2%-28.2%, respectively. At 2.442 GHz, the transmitter delivers 8.1-dBm average output power for 40-MHz, 1024-quadrature amplitude modulation (QAM) 802.11ax signal while meeting the standard specification of error vector magnitude (EVM) below − 35 dB. In 5-GHz operating mode, the transmitter achieves an average output power of 6.72-6.95 dBm with the EVM of − 35 dB for 80-MHz, 1024-QAM 802.11ax signal. The PA and transmitter front end are the first published designs for dual-band WLAN 802.11ax application in the literature.

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“…Seeking for low-power front-end receivers compliant with the required specifications of 5G-based IoT scenarios, both receiver architecture and circuits have to be optimized. To support a huge number of applications in different communication standards, usually multiple RF front-ends are designed to operate in a single band/standard each, thus potentially consuming considerable power overall [ 9 ]. Hence, a low-power wideband RF front-end receiver is essential for multi-standard communications.…”

Section: Introductionmentioning

confidence: 99%

Energy Efficiency Analysis of MIMO Wideband RF Front-End Receivers

Nascimento

Theis

Santos

et al. 2020

Sensors

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Energy-efficiency is crucial for modern radio-frequency (RF) receivers dedicated to Internet of Things applications. Energy-efficiency enhancements could be achieved by lowering the power consumption of integrated circuits, using antenna diversity or even with an association of both strategies. This paper compares two wideband RF front-end architectures, based on conventional low-noise amplifiers (LNA) and low-noise transconductance amplifiers (LNTA) with N-path filters, operating with three transmission schemes: single antenna, antenna selection and singular value decomposition beamforming. Our results show that the energy-efficiency behavior varies depending on the required communication link conditions, distance between nodes and metrics from the front-end receivers. For short-range scenarios, LNA presents the best performance in terms of energy-efficiency mainly due to its very low power consumption. With the increasing of the communication distance, the very low noise figure provided by N-path LNTA-based architectures outperforms the power consumption issue, yielding higher energy-efficiency for all transmission schemes. In addition, the selected front-end architecture depends on the number of active antennas at the receiver. Hence, we can observe that low noise figure is more important with a few active antennas at the receiver, while low power consumption becomes more important when the number of active RF chains at the receiver increases.

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9.1 A 13mm<sup>2</sup> 40nm multiband GSM/EDGE/HSPA+/TDSCDMA/LTE transceiver

Cited by 10 publications

References 5 publications

Analyzing 5G RF System Performance and Relation to Link Budget for Directive MIMO

Analyzing 5G RF System Performance and Relation to Link Budget for Directive MIMO

Reconfigurable 2.4-/5-GHz Dual-Band Transmitter Front-End Supporting 1024-QAM for WLAN 802.11ax Application in 40-nm CMOS

Energy Efficiency Analysis of MIMO Wideband RF Front-End Receivers

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