A 140GHz power amplifier with 20.5dBm output power and 20.8% PAE in 250-nm InP HBT technology

Ahmed, Ahmed S. H.; Seo, Munkyo; Farid, Ali A.; Urteaga, M.; Buckwalter, James F.; Rodwell, M.J.W.

doi:10.1109/ims30576.2020.9224012

Cited by 43 publications

(8 citation statements)

References 15 publications

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“…The atmospheric gasses attenuation P g in ( 1) is ∼ 35.2 dB [16]. Assuming reasonable parameters for a mobile ground station transmitting a 200 mW signal at 165 GHz [32] using a 15 dBi gain antenna [33], the theoretical received power at the TEMPEST-D radiometer would be -201.2 dBm which is more than 60 dB (a factor of 1,000,000) below the minimum signal detection level at the satellite (-133 dBm over 200 MHz). This implies that if N mobile devices were operating on the ground, each with similar transmitter power levels and all N devices were within the passband and main beam of the satellite receiver, the total contribution of the entire terrestrial network interference power I (NOTE: variable captital I for interference power, assuming each interferer adds power noncoherently) is I[dBm] = −201.2dBm + 10 log 10 (N ) = -133.0 dBm.…”

Section: Analysis Of Interference Between Satellite and Terrestrial Networkmentioning

confidence: 99%

Terahertz Wireless Communications: Co-Sharing for Terrestrial and Satellite Systems Above 100 GHz

Xing¹,

Rappaport²

2021

IEEE Commun. Lett.

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This paper demonstrates how spectrum up to 1 THz will support mobile communications beyond 5G in the coming decades. Results of rooftop surrogate satellite/tower base station measurements at 140 GHz show the natural isolation between terrestrial networks and surrogate satellite systems, as well as between terrestrial mobile users and co-channel fixed backhaul links. These first-of-their-kind measurements and accompanying analysis show that by keeping the energy radiated by terrestrial emitters on the horizon (e.g., elevation angles ≤15°), there will not likely be interference in the same or adjacent bands between passive satellite sensors and terrestrial terminals, or between mobile links and terrestrial backhaul links at frequencies above 100 GHz.

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Section: Analysis Of Interference Between Satellite and Terrestrial Networkmentioning

confidence: 99%

Terahertz Wireless Communications: Co-Sharing for Terrestrial and Satellite Systems Above 100 GHz

Xing¹,

Rappaport²

2021

IEEE Commun. Lett.

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“…These gains correspond to number of BS antenna elements of 1024 and 4096 at 28 and 140 GHz, respectively, while fewer antenna elements were assumed to be present at the UE due to less aperture area -8 elements at 28 GHz and 64 elements at 140 GHz. The power efficiency of the TX power amplifier was assumed to be 28% at 28 GHz as per specifications of the CMD262 power amplifier [10], however, a lower efficiency of 20.8% was assumed for the power amplifier at 140 GHz [11]. To calculate the power consumed by the low-noise amplifiers (LNAs), we used the Figure of Merit (FoM) of an LNA that quantifies the DC power drawn by the LNA [8].…”

Section: System Parameters W and Cef Analysismentioning

confidence: 99%

A Power Efficiency Metric for Comparing Energy Consumption in Future Wireless Networks in the Millimeter-Wave and Terahertz Bands

Kanhere¹,

Poddar²,

Xing³

et al. 2022

IEEE Wireless Commun.

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Future wireless cellular networks will utilize millimeter wave and sub-THz frequencies and deploy small-cell base stations to achieve data rates on the order of hundreds of Gigabits per second per user. The move to sub-THz frequencies will require attention to sustainability and reduction of power whenever possible to reduce the carbon footprint while maintaining adequate battery life for the massive number of resourceconstrained devices to be deployed. This article analyzes power consumption of future wireless networks using a new metric, the power waste factor (W ), which shows promise for the study and development of "green G" -green technology for future wireless networks. Using W , power efficiency can be considered by quantifying the power wasted by all devices on a signal path in a cascade. We then show that the consumption efficiency factor (CEF ), defined as the ratio of the maximum data rate achieved to the total power consumed, is a novel and powerful measure of power efficiency that shows less energy per bit is expended as the cell size shrinks and carrier frequency and channel bandwidth increase. Our findings offer a standard approach to calculating and comparing power consumption and energy efficiency.

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“…Fig. 11 illustrates the 8-way combined power amplifier, where each PA is based on common-base, class-A stages [24]. As opposed to the previous design where the power was combined through pseudo-differential stages (Fig.…”

Section: An Inp Ummw Power Amplifiermentioning

confidence: 99%

Fundamental limits of high-efficiency silicon and compound semiconductor power amplifiers in 100-300 GHz bands

Buckwalter¹,

Rodwell²,

Ning³

et al. 2021

ITU-J FET

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This paper reviews the requirements for future digital arrays in terms of power amplifier requirements for output power and efficiency and the device technologies that will realize future energy-efficient communication and sensing electronics for the upper millimeter-wave bands (100-300 GHz). Fundamental device technologies are reviewed to compare the needs for compound semiconductors and silicon processes. Power amplifier circuit design above 100 GHz is reviewed based on load line and matching element losses. We present recently presented class-A and class-B PAs based on a InP HBT process that have demonstrated record efficiency and power around 140 GHz while discussing circuit techniques that can be applied in a variety of integrated circuits.

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A 140GHz power amplifier with 20.5dBm output power and 20.8% PAE in 250-nm InP HBT technology

Cited by 43 publications

References 15 publications

Terahertz Wireless Communications: Co-Sharing for Terrestrial and Satellite Systems Above 100 GHz

Terahertz Wireless Communications: Co-Sharing for Terrestrial and Satellite Systems Above 100 GHz

A Power Efficiency Metric for Comparing Energy Consumption in Future Wireless Networks in the Millimeter-Wave and Terahertz Bands

Fundamental limits of high-efficiency silicon and compound semiconductor power amplifiers in 100-300 GHz bands

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