Rotman lens for the millimeter wave frequency range Dirk Nüβler

In this paper, there is a t shaped antenna patch on a 12mm X 12mm plane, with another patch which is inverted T shaped patch on the same plane. Its operated in the frequency range of 24GHz to 40GHz. It is a millimeter wave frequency antenna for 5th generation applications. Owing to its compact size it has less complexity, and fed by waveguide on both sides of patch[1]. It gives a bandwidth of 2GHz and 5.6 GHz in the range 24-26 GHz and 30-35GHz respectively. Radiation efficiency is of 83% at 40 GHz and directivity of 5.27 . We get to see two resonating frequencies, one at 28GHz and other at 37 GHz thus creating dual band antenna[2].

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Macro cellular network transition from traditional frequency range to 28 GHz millimeter wave frequency band

Wireless Networks ◽

10.1007/s11276-016-1390-0 ◽

2016 ◽

Vol 24 (3) ◽

pp. 943-953

Author(s):

Muhammad Usman Sheikh ◽

Jukka Lempiäinen

Keyword(s):

Millimeter Wave ◽

Frequency Band ◽

Cellular Network ◽

Wave Frequency ◽

Frequency Range ◽

Network Transition ◽

Macro Cellular

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Classification of skin phenotypes caused by diabetes mellitus using complex scattering parameters in the millimeter-wave frequency range

Scientific Reports ◽

10.1038/s41598-017-06034-0 ◽

2017 ◽

Vol 7 (1) ◽

Cited By ~ 4

Author(s):

Fabian Dornuf ◽

Pedro Martín-Mateos ◽

Blanca Duarte ◽

Bernhard Hils ◽

Oscar Elias Bonilla-Manrique ◽

...

Keyword(s):

Diabetes Mellitus ◽

Millimeter Wave ◽

Wave Frequency ◽

Scattering Parameters ◽

Frequency Range

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Reconfigurable Metamaterial Structure at Millimeter Wave Frequency Range

International Journal of Electrical and Computer Engineering (IJECE) ◽

10.11591/ijece.v7i6.pp2942-2949 ◽

2017 ◽

Vol 7 (6) ◽

pp. 2942

Author(s):

B. A. F. Esmail ◽

H. A. Majid ◽

Z. Z. Abidin ◽

S. H. Dahlan ◽

M. K. A. Rahim

Keyword(s):

Millimeter Wave ◽

Unit Cell ◽

Wave Frequency ◽

Front Face ◽

Strip Line ◽

Frequency Range ◽

Metamaterial Structure ◽

Transmission Coefficients ◽

Fifth Generation ◽

Beam Switching

In this paper, reconfigurable metamaterial structure at millimeter wave frequency range was designed and simulated for a future fifth generation (5G) mobile-phone beam switching applications. The new proposed structure was composed of a bridge-shaped resonator (BSR) in the front face and strip line at the back face of the unit cell which operates at 28 GHz. First, non-reconfigurable low loss BSR unit cell was designed and subsequently, the reconfigurability was achieved using four switches formed in the gaps of the structure. The proposed structure achieves the lowest loss and almost full transmission among its counterparts by -0.06 dB (0.99 in linear scale). To demonstrate the reconfigurability of the metamaterial, the reflection and transmission coefficients and real parts of the effective refractive index at each reconfigured frequency were studied and investigated. Simulation results showed that a high transmission and reflection peaks occur at each resonance frequency according to change the state of the switches.

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