Path loss characteristics of 60 GHz transmissions

Hawkins, Neal; Steele, R.; Rickard, D.C.; Shepherd, C.R.

doi:10.1049/el:19850748

Cited by 17 publications

(7 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All expressions are in decibels (dB). It is shown in [8] that the received signal strength is dominated by the distance from the transmitter and the receiver, taking into account the oxygen absorption. The general path loss model can be expressed as…”

Section: A 60ghz Link Budget Modelsmentioning

confidence: 99%

Capacity of 60 GHz Wireless Communication Systems over Fading Channels

Wang¹,

Zhang²,

Lv³

et al. 2012

JNW

View full text Add to dashboard Cite

This paper considers the channel capacity of 60GHz wireless communications systems over Rayleigh fading channels and Ricean fading channels. The SNR and therefore capacity varies according to the communication distance. The capacity is presented for line-of-sight (LOS) and non-line-of-sight (NLOS) channels given based on a 60GHz link budget model. Phase shift keying (PSK) modulation is considered under FCC power constraints for the unlicensed 59-64GHz radio spectrum. The channel capacity over Rayleigh fading channels is compared with the capacity in additive white Gaussian noise channels. The paper also investigates the channel capacity of 60GHz wireless communications systems over Ricean fading channels and gives the channel capacity compariasion with q-ary PSK modulation over Ricean fading channel, AWGN channel and Rayleigh channel when the SNR per symbol is given. The results show that a 60GHz wireless system is more suitable for short range communications less than 100 meters rather than long distance

show abstract

Section: A 60ghz Link Budget Modelsmentioning

confidence: 99%

Capacity of 60 GHz Wireless Communication Systems over Fading Channels

Wang¹,

Zhang²,

Lv³

et al. 2012

JNW

View full text Add to dashboard Cite

show abstract

“…which represents the denominator of parameter q defined in (22), and where M t = M a −M † b is based on definitions (16) through (18). The function (A6) is convex in M a for Im{M a } > 0, and hence in order to maximize q in (22), f (M a ) has to be minimized.…”

Section: Discussionmentioning

confidence: 99%

Optical theorems and physical bounds on absorption in lossy media

Ivanenko¹,

Gustafsson²,

Nordebo³

2019

Opt. Express

View full text Add to dashboard Cite

Two different versions of an optical theorem for a scattering body embedded inside a lossy background medium are derived in this paper. The corresponding fundamental upper bounds on absorption are then obtained in closed form by elementary optimization techniques. The first version is formulated in terms of polarization currents (or equivalent currents) inside the scatterer and generalizes previous results given for a lossless medium. The corresponding bound is referred to here as a variational bound and is valid for an arbitrary geometry with a given material property. The second version is formulated in terms of the T-matrix parameters of an arbitrary linear scatterer circumscribed by a spherical volume and gives a new fundamental upper bound on the total absorption of an inclusion with an arbitrary material property (including general bianisotropic materials). The two bounds are fundamentally different as they are based on different assumptions regarding the structure and the material property. Numerical examples including homogeneous and layered (coreshell) spheres are given to demonstrate that the two bounds provide complimentary information in a given scattering problem.

show abstract

“…As a numerical example we consider the atmospheric absorption by oxygen in the 60 GHz band [23], [24], [25], which is of great importance due to its capability to mitigate interference in short range communication systems [8], [9], [10]. As an additional interesting property of the lossy atmosphere, we demonstrate below that it also ultimately limits any super resolution capabilities of small antennas.…”

Section: Numerical Examplesmentioning

confidence: 99%

“…In this contribution, we reformulate and extend the analytical results given in [7] to encompass magnetic as well as dielectric background media, and we give explicit derivations and formulas also for the corresponding bounds on scattering and extinction. In essence, the theory gives new fundamental bounds on absorption, scattering and extinction that limits any single frequency super resolution effects for a scatterer in a lossy surrounding medium, with possible applications e.g., with antennas and resonators in communications [8], [9], [10], [11], [12], [13], plasmonics and metamaterials [14], [15], [16] and medicine [17], [18], [19].…”

Section: Introductionmentioning

confidence: 99%

On the optical theorem and optimal extinction, scattering and absorption in lossy media

Nordebo

Gustafsson

Ivanenko

2020

2020 14th European Conference on Antennas and Propagation (EuCAP)

View full text Add to dashboard Cite

This paper reformulates and extends some recent analytical results concerning a new optical theorem and the associated physical bounds on absorption in lossy media. The analysis is valid for any linear scatterer (such as an antenna), consisting of arbitrary materials (bianisotropic, etc.) and arbitrary geometries, as long as the scatterer is circumscribed by a spherical volume embedded in a lossy background medium. The corresponding formulas are here reformulated and extended to encompass magnetic as well as dielectric background media. Explicit derivations, formulas and discussions are also given for the corresponding bounds on scattering and extinction. A numerical example concerning the optimal microwave absorption and scattering in atmospheric oxygen in the 60 GHz communication band is included to illustrate the theory.

show abstract

Path loss characteristics of 60 GHz transmissions

Cited by 17 publications

References 3 publications

Capacity of 60 GHz Wireless Communication Systems over Fading Channels

Capacity of 60 GHz Wireless Communication Systems over Fading Channels

Optical theorems and physical bounds on absorption in lossy media

On the optical theorem and optimal extinction, scattering and absorption in lossy media

Contact Info

Product

Resources

About