A dual-band 802.11abgn/ac transceiver with integrated PA and T/R switch in a digital noise controlled SoC

Chung, Yuan-Hung; Liao, Che-Hung; Lin, Chun–Wei; Shih, Yi-Shing; Li, Chin-Fu; Hung, Mei-Chuan; Liu, Ming-Chung; Wu, Pi-An; Hsu, Jui-Lin; Hsu, Ming-Yeh; Chen, Sheng-Hao; Chang, P.; Chen, Chih‐Hao; Chang, Yu-Hsien; Chen, Junyu; Chang, Tsin‐Yuan; Chien, George

doi:10.1109/cicc.2015.7338361

Cited by 14 publications

(5 citation statements)

References 10 publications

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“…The Table shows the comparison of the output power from this transmitter with the state‐of‐the art transmitters including their target applications around the ADS‐B frequencies. The references shows the average output power of 20‐21.6 dBm but their target applications are for IEEE WLAN and the reference operating in L‐band has lower power and is fabricated in different technology whereas the references designed for cellular applications also provide lower power than this work. The reference is designed for UAS has lower power than this work and is operating in different frequency other than ADS‐B frequencies (978 MHz and 1090 MHz).…”

Section: Measurement Resultsmentioning

confidence: 97%

A high power fully integrated single‐chip CMOS transmitter for wireless communication of unmanned aircraft system

Roy

Dawn

2016

Micro & Optical Tech Letters

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This letter presents a high power fully integrated single‐chip CMOS transmitter for automatic dependent surveillance‐broadcast (ADS‐B) of unmanned aircraft system (UAS), operating at both 978 MHz Universal Access Transceiver (UAT) mode and 1090 MHz Extended Squitter (1090 ES) mode. The 4.38 mm × 0.95 mm fully‐integrated transmitter chip fabricated using 0.18 um CMOS process exhibits modulated output power of 23 dBm at 978 MHz with 102 MHz bandwidth, showing a potential replacement of the state‐of‐the‐art technology by significantly reducing the size and overall cost of the complete ADS‐B system. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:432–439, 2017

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Section: Measurement Resultsmentioning

confidence: 97%

A high power fully integrated single‐chip CMOS transmitter for wireless communication of unmanned aircraft system

Roy

Dawn

2016

Micro & Optical Tech Letters

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“…A 5-bit current-steering gain control unit is stacked on the mixer, and the range of the control gain is around 24 dB. In order to keep sufficient voltage headroom and deliver a high output power, the supply voltage for the mixer is chosen to be 2.5 V, and thick gate-oxide transistors are used in the current-steering gain control unit [2], [27].…”

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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“…Increased demands for high transmission speed for wireless communication system have led to the popularity of transceivers with in/quadrature (I/Q) architecture [ 1 , 2 ]. However, to achieve higher data rate, new designs of transceivers are necessary for applications such as industrial, scientific and medical (ISM) radio band (emerging low-power appliances), long term evolution (LTE) mobile networks, multimedia (video streaming, e-commerce), wireless internet access (WLAN, WiFi, WiMax) and wireless body area sensor networks (WBANs) with multi-input multi-output (MIMO) topologies [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

A Suspended Six-Port Transformer-Based Power Divider for 2.4 GHz Applications

Huang

Syu

et al. 2017

Micromachines

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This paper presents a transformer-based power divider with six-port suspending structure for 2.4 GHz wireless applications. The proposed power divider, which is featured with chip size (2.9 mm × 2.8 mm × 21 μm), was constructed by an 8-μm-thick Cu bottom electrode, a 5 μm-height supporting copper post, and an 8-μm-thick suspended spiral copper conducting layer with a 13 μm air gap. The main structure included two transformers and six input/output matching capacitors for simultaneously achieving two single-to-differential paths so that the chip size of the complex multiple-ports transceiver could be reduced. According to the results, the proposed divider has characteristics of the radio frequency (RF), and its input return losses are around −10 dB, output return losses are beneath −10 dB, and minimum amplitude imbalance is below 1.5 dB and less than 1° phase imbalance at 2.4 GHz operating frequency.

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A dual-band 802.11abgn/ac transceiver with integrated PA and T/R switch in a digital noise controlled SoC

Cited by 14 publications

References 10 publications

A high power fully integrated single‐chip CMOS transmitter for wireless communication of unmanned aircraft system

A high power fully integrated single‐chip CMOS transmitter for wireless communication of unmanned aircraft system

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

A Suspended Six-Port Transformer-Based Power Divider for 2.4 GHz Applications

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