Perspectives of W-Band for Space Communications

Jebril, A.; Lucente, M.; Re, Emiliano; Rossi, T.; Ruggieri, M.; Sacchi, Claudio; Dainelli, V.

doi:10.1109/aero.2007.352936

Cited by 26 publications

(4 citation statements)

References 24 publications

(36 reference statements)

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“…Atmospheric thermodynamical profiles from each radiosonde have been processed to compute the simulated T MR in clear and cloudy conditions using the Wave Propagation Laboratory (WPL) radia- tive transfer code. This code was originally developed at the U.S. National Oceanic and Atmospheric Administration (NOAA; Schroeder and Westwater, 1991), implementing the millimeter-wave propagation model (MPM; Liebe, 1989), and has since been updated with refined spectroscopic parameters (Rosenkranz, 2017), as described in Cimini et al (2018) and references therein. The cloud water content is modeled using the Teknillinen KorkeaKoulu (TKK) method (Salonen and Uppala, 1991;Luini et al, 2018).…”

Section: Dataset and Implementationmentioning

confidence: 99%

Improving atmospheric path attenuation estimates for radio propagation applications by microwave radiometric profiling

et al. 2021

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Abstract. Ground-based microwave radiometer (MWR) observations of downwelling brightness temperature (TB) are commonly used to estimate atmospheric attenuation at relative transparent channels for radio propagation and telecommunication purposes. The atmospheric attenuation is derived from TB by inverting the radiative transfer equation with a priori knowledge of the mean radiating temperature (TMR). TMR is usually estimated by either time-variant site climatology (e.g., monthly average computed from atmospheric thermodynamical profiles) or condition-variant estimation from surface meteorological sensors. However, information on TMR may also be extracted directly from MWR measurements at channels other than those used to estimate atmospheric attenuation. This paper proposes a novel approach to estimate TMR in clear and cloudy sky from independent MWR profiler measurements. A linear regression algorithm is trained with a simulated dataset obtained by processing 1 year of radiosonde observations of atmospheric thermodynamic profiles. The algorithm is trained to estimate TMR at K- and V–W-band frequencies (22–31 and 72–82 GHz, respectively) from independent MWR observations at the V band (54–58 GHz). The retrieval coefficients are then applied to a 1-year dataset of real V-band observations, and the estimated TMR at the K and V–W band is compared with estimates from nearly colocated and simultaneous radiosondes. The proposed method provides TMR estimates in better agreement with radiosondes than a traditional method, with 32 %–38 % improvement depending on frequency. This maps into an expected improvement in atmospheric attenuation of 10 %–20 % for K-band channels and ∼30 % for V–W-band channels.

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Section: Dataset and Implementationmentioning

confidence: 99%

Improving atmospheric path attenuation estimates for radio propagation applications by microwave radiometric profiling

et al. 2021

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“…Until recently, research has been focused on the demonstration of CMOS and SiGe BiCMOS technologies [1][2][3][4][5][6]. In order to move beyond the performance of siliconbased technologies, while still providing high levels of integration and control, heterogeneous integration of III-V semiconductors and CMOS has been proposed and demonstrated for mixed-signal circuits [6], and more recently for W Band LNAs [7].…”

Section: Introductionmentioning

confidence: 99%

“…The W Band, between 75 GHz and 110 GHz, is an emerging application space on several fronts including radar [1,2], imaging [3], and high speed communications [4]. A critical receiver component found in systems developed for such applications is a down-conversion mixer whose function is to accurately translate signals to lower frequencies for processing.…”

Section: Introductionmentioning

confidence: 99%

An Active Double-Balanced Down-Conversion Mixer in InP/Si BICMOS Operating from 70-110 GHz

McCue¹,

Casto²,

et al. 2014

2014 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS)

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In this paper, a double-balanced Gilbert cell down-conversion mixer is demonstrated from 70-110 GHz. The wide bandwidth and high frequency are enabled by the HRL InP/Si BiCMOS process. With an f T of 300 GHz, the available 0.25 µm InP HBTs are used in the signal path while the 90nm CMOS devices are used for biasing and gain adjustment. The fully differential circuit is implemented using two on-chip Marchand baluns feeding both the LO and RF ports. An IF buffer follows the mixer to improve matching and signal quality for testing. After de-embedding the balun and IF buffer, the mixer core achieves a peak conversion gain of 13 dB, a minimum DSB NF of 10 dB, and an OP1dB of -2 dBm while consuming 5 mA from a 3.3 V supply.Index Terms -W-Band circuits, mm-wave mixer, doublebalanced mixer, Marchand balun, heterogeneous integration.

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“…The frequency range 75‐110 GHz and above allows larger bandwidth for high‐speed communications as well as shorter wavelength for sensors and imaging applications. At present, several applications for W‐band are being explored, such as radar for space, imaging, and high‐speed communication systems. All these systems require accurate frequency conversion for transmit and receive signal processing.…”

Section: Introductionmentioning

confidence: 99%

Highly linear fundamental up‐converter in InP DHBT technology for W‐band applications

Hossain

Stoppel

Boppel

et al. 2020

Micro & Optical Tech Letters

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A fundamental up-converter with high linearity is presented, realized as full Gilbert cell (GC) mixer using a 800 nm transferred substrate (TS) InP-DHBT technology. The LO input of the Gilbert cell conducts from 75 to 100 GHz and requires 5 dBm of input power. The GC attains a single sideband (SSB) conversion gain of 10 AE 1 dB within the frequency from 82 to 95 GHz with a saturated output power of −1 dBm at 86 GHz and >5 dB conversion gain between 75 and 100 GHz. The up-converter exhibits 25 GHz of IF bandwidth. The DC power consumption is only 51 mW. K E Y W O R D S Local oscillator (LO), indium phosphide double heterojunction bipolar transistor (DHBT), single sideband (SSB), upper side band (USB), lower side band (LSB), transferred-substrate (TS) process, Gilbert cell (GC) mixer

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Perspectives of W-Band for Space Communications

Cited by 26 publications

References 24 publications

Improving atmospheric path attenuation estimates for radio propagation applications by microwave radiometric profiling

Improving atmospheric path attenuation estimates for radio propagation applications by microwave radiometric profiling

An Active Double-Balanced Down-Conversion Mixer in InP/Si BICMOS Operating from 70-110 GHz

Highly linear fundamental up‐converter in InP DHBT technology for W‐band applications

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